Entries |
Document | Title | Date |
20080227407 | METHOD AND APPARATUS FOR AUTOMATICALLY ADJUSTING REMINDER VOLUME ON A MOBILE COMMUNICATION DEVICE - A method and apparatus for automatically adjusting volume of an audio signal on a mobile device, comprising playing the audio signal at an initial volume, sampling the audio signal, estimating a transfer function based on an echo path characteristic between the played audio signal and sampled audio signal, selecting a volume policy based on the estimated transfer function, and adjusting the volume of the audio signal in accordance with the selected volume policy. | 09-18-2008 |
20080227408 | APPARATUS AND METHOD FOR SWITCHING FREQUENCY BAND OF ANTENNA - An apparatus and a method for switching a frequency band of an antenna, used in an electronic device having an antenna are provided. The apparatus comprises a driving device, a switching device, and a radio frequency module. The switching device is used for adjusting the frequency band of the antenna to cover a system frequency band of a communication system adopted by the electronic device. The driving device is used for receiving a switching command from the electronic device and driving the switching device accordingly, in which the switching command indicates the communication system adopted by the electronic device. The radio frequency module is used for performing down frequency conversion on the signals output by the switching device and performing up frequency conversion on the signals to be input to the switching device. Accordingly, more than two frequency bands can be supported by the electronic device with a single antenna. | 09-18-2008 |
20080233892 | METHOD AND SYSTEM FOR AN INTEGRATED VCO AND LOCAL OSCILLATOR ARCHITECTURE FOR AN INTEGRATED FM TRANSMITTER AND FM RECEIVER - Aspects of a method and system for an integrated local oscillator generator for an integrated FM radio are provided. In this regard, a FM radio receive path and/or a FM radio transmit path may utilize one or more signals which are a frequency scaled version of a generated signal. In this regard, the frequency scaling may be performed by one or more configurable frequency dividers which may be programmably controlled by a processor. The generated signal may be in the range of about 990 MHz to 1190 MHz such that harmonics of the generated signal do not interfere with coexistent wireless technologies. Additionally the frequency scaled version may be in the frequency range of about 76 MHz to 108 MHz such that FM Radio signals in a FM broadcast band may be transmitted and/or received. The frequency scaled versions of the generated signal may comprise in-phase and quadrature components and may be utilized to up-convert and/or down-convert FM radio signals. | 09-25-2008 |
20080233893 | Wireless Tranceiver Configuration with Self-Calibration for Improved Out of Band Interferer Rejection - The present wireless transceiver includes a tuneable narrow band LNA which rejects dramatically any out of band interferers. The tuneable narrow band LNA may be operable over a wide frequency band. A loopback calibration procedure is used to control the tuneable narrow band LNA so as to produce a substantially flat gain characteristic over the band of interest. | 09-25-2008 |
20080242237 | Antenna system for use within a wireless communication device - An antenna system includes an antenna, a transmission line, an inductor module, a tunable capacitor module, and control logic. The transmission line is coupled to the antenna and to the inductor module. The tunable capacitor module is coupled to the transmission line in accordance with a capacitance control signal to provide a desired capacitance such that inductance of the inductor module and the desired capacitance tunes the antenna system. The control logic is coupled to generate the capacitance control signal based on the operational parameters. | 10-02-2008 |
20080242238 | METHOD AND SYSTEM FOR IMPROVING THE SPECTRAL EFFICIENCY OF A DATA COMMUNICATION LINK - An apparatus for communicating between a mobile device, and a plurality of transceivers. The apparatus includes a first transceiver which transmits to the mobile device on any one of a plurality of channels. The apparatus further includes a second transceiver which transmits to the mobile device on any one of the plurality of channels. | 10-02-2008 |
20080261540 | Universal front end module for networking device - In one embodiment a universal front end module for network communications is disclosed. The module can include a mode controller coupled to components of a transmission path. A first tunable filter on a transmit path can receive a mode control signal from the mode controller and receive a signal to be transmitted and provide a filtered output signal responsive to the mode control signal and the signal to be transmitted. The mode control signal can be associated with a predetermined network protocol such as WiMax, a WiFi, a 3G LTE and a cellular standard where each standard has a predetermined operating frequency and protocol. The module can also include a tunable power amplifier to provide an amplified transmittable signal over a single transmit path can be utilized to transmit the transmittable signal in at least two different modes responsive to the mode controller. | 10-23-2008 |
20080274705 | Automatic tuning of telephony devices - Various embodiments are disclosed relating to the automatic tuning of telephony devices. An example method comprises, determining, based on a change in an operating environment of a telephony device, that a speech enhancement algorithm of the telephony device is to be tuned. The example method further comprises, determining one or more metrics based on operation of the telephony device in the changed operating environment and providing the one or more metrics to the speech enhancement algorithm In the example method, the speech enhancement algorithm is tunable based on the one or more metrics. The example method still further comprises, tuning the speech enhancement algorithm based on the one or more metrics. | 11-06-2008 |
20080280570 | Hybrid techniques for antenna retuning utilizing transmit and receive power information - An embodiment of the present invention provides an apparatus, comprising a transceiver, an antenna tuner connecting said transceiver to an antenna, a power sensor adapted to acquire measurements about transmit power, a receive signal strength indicator (RSSI) adapted to acquire measurements about receive power and wherein said tuner tunes said antenna based upon said transmit and receive measurements to optimize said antenna in both the receive and transmit bands. | 11-13-2008 |
20080280571 | RF transceiver with adjustable antenna assembly - A radio frequency (RF) transceiver includes a baseband processing module, a configurable receiver section, a configurable transmitter section and a configurable antenna assembly. The baseband processing module converts outbound data into an outbound symbol stream, converts an inbound symbol stream into inbound data and generates a transmit adjust signal and a receive adjust signal. The receiver section converts an inbound RF signal into the inbound symbol stream. The transmitter section converts the outbound symbol stream into an outbound RF signal. The antenna assembly receives the inbound RF signal via a first antenna structure and transmits the outbound RF signal via a second antenna structure. The first antenna structure and/or the configurable receiver section adjusts phase and/or amplitude of the inbound RF signal in accordance with the receive adjust signal. The second antenna structure and/or the configurable transmitter section adjusts phase and/or amplitude of the outbound RF signal in accordance with the transmit adjust signal. | 11-13-2008 |
20080305749 | DIGITALLY CONTROLLED ANTENNA TUNING CIRCUIT FOR RADIO FREQUENCY RECEIVERS - A novel digitally controlled antenna tuning circuit that enables the implementation of low cost, wideband tuning circuits for antennas in receive applications. The invention is operative to switch a plurality of tuning elements into and out of a main receive signal path. Each individual tuning element is switched into or out of the receive signal path using a single PIN diode. For series connected tuning elements, the diode is connected in parallel to the tuning element. For tuning elements connected in parallel, the diode is connected in series with the tuning element. The diodes are switched in accordance with control voltages which forward bias the diodes to effectively create a low resistance path thus either inserting or removing a tuning element from the receive signal path depending on its configuration in the circuit. | 12-11-2008 |
20080305750 | MINIATURE SUB-RESONANT MULTI-BAND VHF-UHF ANTENNA - A novel antenna system for receiving transmissions in the VHF and UHF frequency bands particularly suitable as a miniaturized antenna for UHF reception, such as of digital video broadcasting transmissions. The antenna system utilizes a combination of three techniques including (1) the use of dialect loading using a high dielectric constant ceramic substrate; (2) an antenna dielectrically loaded and tuned to a significantly higher frequency than desired; and (3) use of a tuning circuit to compensate for the frequency offset of the antenna thereby shifting the resonant frequency to cover the entire band. The antenna is intentionally designed to be too small to radiate at the frequency of interest. The antenna element is then ‘forced’ to be tuned to the desired lower frequency using passive (or active) reactive components as part of a tuning circuit. Multi-band operation is achieved by providing a bypass switch to connect the antenna element either to (1) a first receiver without the tuning circuit (i.e. high frequency tuning) or (2) a second receiver with the tuning circuit (i.e. low frequency tuning). | 12-11-2008 |
20090011719 | Radio Communication System and Method - A two-way radio system and method in which a virtual channel code is selected for a particular group of radios. On transmit, the transmitting radio searches for a free radio channel and begins to transmit the voice audio as well as the chosen virtual channel code when a free channel is found. Meanwhile, receiving radios continuously scan through all 14 radio channels. When a carrier is detected in a given radio channel, the receiver checks to see if the virtual channel code on that channel matches the selected tone. If the tone matches, the squelch is opened otherwise the receiver continues to scan. | 01-08-2009 |
20090042517 | System And Method For Low Noise Output Divider And Buffer Having Low Current Consumption - A low noise divider includes a voltage controlled oscillator (VCO) having a first frequency output, a frequency divider configured to receive the first frequency output and configured to provide a second frequency output; and a buffer circuit configured to receive the first frequency output and the second frequency output, the buffer circuit configured to provide the second frequency output as an output of the low noise divider, where a phase noise of the second frequency output is dependent only on a phase noise of the first frequency output. | 02-12-2009 |
20090111389 | AUTO CHANNEL SELECTION FOR FM TRANSMITTER - A system may include a frequency modulation (FM) receiver that is arranged and configured to scan an FM spectrum for available frequencies, a processor that is arranged and configured to select one of the available frequencies, and an FM transmitter that is arranged and configured to communicate the selected available frequency to another device. | 04-30-2009 |
20090111390 | RADIO COMMUNICATIONS SYSTEM DESIGNED FOR A LOW-POWER RECEIVER - The invention relates to methods by which radio signals can be transmitted to, and received by, a radio receiver such that the receiver consumes very little power from a battery or energy source. The invention also relates to methods by which radio signals, modulated with data information, can be produced by a transmitter that consumes very little power. The invention is applicable not only to medical implants, but any application requiring a radio receiver to operate with very low power consumption. | 04-30-2009 |
20090117857 | FM radio devices determining preferred inactive FM radio channel for communication - Radio devices that are able to communicate with each other using frequencies within the FM radio spectrum are described. One or both of the radio devices identifies inactive FM radio channels within the FM radio spectrum on which no signal is present and selects one of the inactive FM radio channels to communicate with each other. | 05-07-2009 |
20090137212 | Non-Linear Signal Distortion Detection Using Multiple Signal to Noise Ratio Measurement Sources - A television signal processing apparatus comprising a receiver comprises a distortion estimator and an automatic gain control signal generator. The automatic gain control signal generator generates a plurality of automatic gain control and filter response control signals in response to the magnitude or signal to noise ratio of an RF signal and a non-linear distortion figure generated from the information carried by said RF signal. The distortion estimator uses a plurality of statistical methods to generate a non-linear distortion figure from the signal constellation of the information carried by said RF signal. | 05-28-2009 |
20090137213 | ADAPTIVE RADIO TRANSCEIVER WITH OFFSET PLL WITH SUBSAMPLING MIXERS - An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims. | 05-28-2009 |
20090143023 | TERMINAL PERFORMING CAMPING BASED ON IMSI INFORMATION AND CONTROL METHOD THEREOF - A terminal and method are provided. The terminal includes an Absolute Radio Frequency Channel Number (ARFCN) table including at least one ARFCN information, and a controller for controlling a frequency scanning based on the ARFCN table to detect one or more ARFCNs from the ARFCN table and for controlling a camping on at least one of the detected one or more ARFCNs, such that the camping can be performed based on International Mobile Subscriber Identity (IMSI) information. The camping can be attempted without a scanning procedure for finding an available cell to reduce an amount of time for camping. | 06-04-2009 |
20090143024 | METHOD OF DETERMINING THE INSTANT OF CONSIDERATION OF A MODIFICATION OF AT LEAST ONE RECEPTION CONDITION FOR SIGNALS IN A COMMUNICATION SYSTEM - The invention relates to a method of determining the instant of consideration of a modification of at least one reception condition for signals in a communication system comprising at least two communication devices. The method comprises the steps, executed by a communication device, of:
| 06-04-2009 |
20090143025 | SYSTEM & METHOD FOR SELECTING SPECTRUM - A system and method comprise a spectrum selector, an unlicensed transceiver, and a licensed transceiver. The spectrum selector determines whether communications will be transmitted over unlicensed spectrum or licensed spectrum. Based upon the determination, the spectrum selector transmits the communications to the unlicensed transceiver or the licensed transceiver. In addition, the spectrum selector may transmit a first portion of the communications to die unlicensed transceiver and a second portion of the communications to the licensed transceiver. On the receiving side, the spectrum selector monitors the unlicensed transceiver and the licensed transceiver, receives the communications from the licensed transceiver and/or the unlicensed transceiver, and transmits the communications to an access device. The unlicensed transceiver transmits and/or receives communications over unlicensed spectrum. The licensed transceiver transmits and/or receives communications over licensed spectrum. | 06-04-2009 |
20090149135 | DETECTION OF THE OPERATION OF A MICROWAVE OVEN BY SCANNING THE MEDIUM NOISE PATTERN - A new type of measurement ( | 06-11-2009 |
20090149136 | Terminal with Programmable Antenna and Methods for use Therewith - A terminal device includes a transceiver. A programmable antenna is adjustable in response to a control signal and a frequency selection signal to a selected antenna parameter and a selected frequency parameter. | 06-11-2009 |
20090156137 | METHOD AND SYSTEM FOR INCREASED RESOLUTION SWITCHING USING MEMS AND SWITCHED CAPACITORS - Certain aspects of a method and system for increased resolution switching using MEMS and switched capacitors may include a mobile terminal that includes an integrated circuit bonded to a multi-layer package. A capacitance of a first switched capacitor array in the multi-layer package may be tuned via one or more MEMS switches integrated in and/or on the multi-layer package. A capacitance of a second switched capacitor array in the integrated circuit may be tuned via one or more NMOS switches. A plurality of signals may be transmitted and/or received via one or more antennas in the mobile terminal. | 06-18-2009 |
20090170445 | System and Method for Tuning Baseband Filters in Wireless Transceivers - A system and method for tuning baseband filters in wireless transceivers. A method comprises coupling a radio frequency (RF) signal generated by the wireless transmitter at an input of a wireless receiver, the RF signal having a desired frequency, measuring a magnitude of the coupled RF signal at an output of an analog-to-digital converter at an output of an analog baseband filter, wherein the magnitude is measured at the desired frequency, and adjusting a corner frequency of the analog baseband filter in response to the determining that the measured magnitude differs from a specified value. | 07-02-2009 |
20090170446 | RF RADIO BROADCAST TRANSCEIVER - Transceiver comprising a low power RF radio broadcast transmitter having means to modulate a transmitter carrier frequency with a baseband modulation signal as well as transmitter tuning means to vary said transmitter carrier frequency within an RF radio broadcast band. To secure that operation of said transmitter means will not cause interference to broadcast reception, said transceiver includes an RF radio broadcast receiver having a search tuning circuit being provided with channel selecting means for, in a receiving mode of the transceiver, detecting a free RF radio broadcast channel within said RF radio broadcast band carrying no RF signal exceeding a predetermined threshold level, said channel selecting means supplying tuning data defining said free RF radio broadcast channel to means for transmitting said tuning data to said transmitter tuning means for tuning said transmitter carrier frequency to said free RF radio broadcast channel in a transmitting mode of the transceiver. | 07-02-2009 |
20090239482 | RADIO COMMUNICATION APPARATUS AND METHOD - A radio communication apparatus includes a first acquisition unit configured to acquire a first frequency use status of a first frequency band having a first center frequency, a second acquisition unit configured to acquire a second frequency use status of a second frequency band having a second center frequency which is a value M/N times (M and N are natural numbers, and M≠N) of the first center frequency, and a decision unit configured to determine whether a harmonic is detected in the first frequency band using the first frequency use status and the second frequency use status, and to decide, if it is determined that the harmonic is detected, a radio communication parameter in the first frequency band so as to use a frequency band used by the harmonic in radio communication. | 09-24-2009 |
20090258606 | DEVICE OF RADIOELECTRIC SIGNALS TRANSMITTER AND/OR RECEIVER TYPE - Radiofrequency device ( | 10-15-2009 |
20090258607 | TECHNIQUES FOR ENHANCED CO-EXISTENCE OF CO-LOCATED RADIOS - Techniques for enhanced co-existence for co-located radios are described. A mobile computing device may comprise a first radio module operative to communicate wirelessly across a first link using a first set of communications channels, a second radio module operative to communicate wirelessly across a second link using a second set of communications channels, and a coordination module operative to receive information regarding operation of the first and second radio modules, and modify a communications parameter for the first or second radio module based on the received information. Other embodiments are disclosed and claimed. | 10-15-2009 |
20090270047 | TUNING IDENTIFYING BROADCAST TRANSCEIVER - Transceiver comprising a low power RF radio broadcast transmitter having means to modulate a transmitter carrier frequency with a baseband modulation signal as well as transmitter tuning means to vary said transmitter carrier frequency within an RF radio broadcast band. To secure that operation of said transmitter means will not cause interference to broadcast reception, said transceiver includes an RF radio broadcast receiver having a search tuning circuit being provided with channel selecting means for, in a receiving mode of the transceiver, detecting a free RF radio broadcast channel within said RF radio broadcast band carrying no RF signal exceeding a predetermined threshold level, said channel selecting means supplying tuning data defining said free RF radio broadcast channel to means for transmitting said tuning data to said transmitter tuning means for tuning said transmitter carrier frequency to said free RF radio broadcast channel in a transmitting mode of the transceiver. | 10-29-2009 |
20090275294 | CONTEXT-IMAGE DISTRIBUTED SPECTRUM ALLOCATION SCHEME FOR COGNITIVE RADIOS | 11-05-2009 |
20090280752 | LOCAL OSCILLATOR GENERATOR ARCHITECTURE USING A WIDE TUNING RANGE OSCILLATOR - A local oscillator (LO) generator architecture using a wide tuning range oscillator is disclosed. In one embodiment, a wide tuning oscillator based LO generator system includes a wide tuning range oscillator for generating a signal with a first initial frequency or a second initial frequency in response to a control voltage, a first frequency controlling circuit for converting the first initial frequency of the signal into a final frequency, and a second frequency controlling circuit for converting the second initial frequency of the signal into the final frequency. | 11-12-2009 |
20090280753 | Method of Checking the Integrity of an Antenna Arrangement, Transmitter, Receiver and Transceiver - In a method of checking the integrity of an antenna arrangement ( | 11-12-2009 |
20090291644 | WIRELESS COMMUNICATION APPARATUS - A wireless communication apparatus is provided. The apparatus includes a wireless transceiver which conducts communication with another wireless communication apparatus using a channel belonging to a first band of a plurality of frequency bands, and a switching unit which switches the channel being used by the wireless transceiver to a different channel of a second band of the plurality of frequency bands other than the first band. | 11-26-2009 |
20090311973 | Radio Transmitter and Radio Receiver with Channel Condition Assessment - FM radio transmitter is being widely used in portable devices as a convenient way to output audio contents to ubiquitously available FM radio receivers in cars or homes. However, the signal from the FM radio transmitter may be interfering with the signal being broadcast by an FM radio station. A scan system is incorporated into the FM radio transmitter to quickly and reliably identify a vacant channel for the FM radio transmitter to use. The scan system measures on-channel and out-of-channel signal quality and selects a best channel for transmission based on the measured on-channel and out-of-channel signal quality. The scan system is also incorporated into an FM radio receiver to quickly and reliably tune to a valid channel. The scan system selects the valid channel based on the measured on-channel and out-of-channel signal quality. | 12-17-2009 |
20100009639 | Radio frequency unit analog level detector and feedback control system - A Radio Frequency (RF) transceiver includes a baseband processor, a receiver section, and a transmitter section. The receiver section communicatively couples to the baseband processor and includes a plurality of tuned RF circuits. The transmitter section communicatively couples to the baseband processor and includes a plurality of tuned RF circuits. In a calibration operation, the transmitter section applies a RF test signal to its plurality of tuned RF circuits. The baseband processor applies a plurality of tuning control settings to each the tuned RF circuit. The baseband processor, for each of the plurality of tuning control settings, measures an output of the tuned RF circuit. The baseband processor selects a tuning control setting for the tuned RF circuit based upon at least one measured output of the tuned RF circuit. Finally, the baseband processor is operable to apply a selected tuning control setting to the tuned RF circuit. | 01-14-2010 |
20100009640 | Digital Architecture Using One-Time Programmable (OTP) Memory - In one aspect, the present invention includes an apparatus having a digital signal processor (DSP), a controller coupled to the DSP to provide control signals to the DSP, and a one-time programmable (OTP) memory coupled to the DSP and the controller. The OTP memory may include multiple code portions including a first code block to control the DSP and a second code block to control the controller. | 01-14-2010 |
20100022199 | APPARATUS AND METHOD FOR CALIBRATION OF GAIN AND/OR PHASE IMBALANCE AND/OR DC OFFSET IN A COMMUNICATION SYSTEM - An example of a radio frequency (RF) receiver system for communication may include a receive channel frequency converter configured to provide a second receive calibration signal during a receive calibration mode based on a first receive calibration signal and a receive reference signal. The system may include a receive pre-distortion module coupled to the receive channel frequency converter. The receive pre-distortion module may be configured to provide a fourth receive calibration signal during the receive calibration mode based on a third receive calibration signal and one or more receive calibration adjustment signals. The one or more receive calibration adjustment signals may comprise an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances. | 01-28-2010 |
20100022200 | APPARATUS AND METHOD FOR CALIBRATION OF GAIN AND/OR PHASE IMBALANCE AND/OR DC OFFSET IN A COMMUNICATION SYSTEM - An example of a method for off-line calibration of a radio frequency (RF) communication system may include one or more of the following: enabling an off-line calibration mode for an RF communication system; generating an off-line calibration signal; applying to a frequency converter a first off-line calibration signal corresponding to the generated off-line calibration signal; translating the first off-line calibration signal into a second off-line calibration signal; evaluating one or more calibration adjustment signals associated with the calibration signal to reduce error in the communication system, wherein the one or more calibration adjustment signals may include an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances; storing one or more calibration adjustment signals; disabling the off-line calibration mode; applying a communication signal; and adjusting the communication signal based on the stored one or more calibration adjustment signals. | 01-28-2010 |
20100041347 | SYSTEM AND METHOD FOR OPERATIONAL PARAMETER SELECTION TO AVOID INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - A wireless communication device uses operational parameters stored in a capabilities list to control operation of the device. The device may also provide auxiliary services, such as reception of broadcast television signals and location detection using network assisted GPS. When auxiliary services are selected, the cellular operation may cause interference with the auxiliary services. The wireless communication device includes a reduced set of capabilities to control operation of the wireless communication device when an auxiliary service is requested. The particular set of reduced capabilities may depend on the specific type of auxiliary service that has been requested. Upon termination of the auxiliary services, the full capabilities list may be restored and the operation of the wireless communication device is thereafter controlled by the full set of operational capabilities. | 02-18-2010 |
20100041348 | FULL CLOSED LOOP AUTO ANTENNA TUNING FOR WIRELESS COMMUNICATIONS - A wireless terminal includes an RF transceiver, an auto tuner, and an antenna. When a remote signal is received at the wireless terminal, the auto tuner is adjusted in accordance with the received signal to optimize OTA performance of the wireless terminal. As further remote signals are received by the wireless terminal, the tuner is readjusted. As a user inputs information to be transmitted, the tuner is also readjusted in accordance with the transmission signals to optimize OTA performance of the wireless terminal, and a best compromise between the TX OTA performance and the RX OTA performance is calculated. Current/temperature information may also be obtained for readjusting the tuner. | 02-18-2010 |
20100056072 | IN-CABLE FM TUNER-TRANSMITTER CONNECTOR - An apparatus consisting of a connecting cable with a built-in FM tuner and transmitter that connects a portable entertainment device with an external entertainment system over a number of preset frequencies, and which the user can quickly operate without needing to look at the apparatus in order to select a different FM frequency for playback operation if the need arises. | 03-04-2010 |
20100056073 | IN-CABLE FM TUNER-TRANSMITTER CONNECTOR - A connecting cable with a built-in FM tuner and transmitter for connecting a portable entertainment device with an external entertainment system for wireless playback from the device to the system over preset frequencies, and which the user can operate without needing to look at the apparatus in order to select a different FM frequency for playback operation if the need arises. | 03-04-2010 |
20100056074 | BASE STATION APPARATUS, USER APPARATUS AND COMMUNICATION CONTROL METHOD - A base station apparatus in a radio communication system where transmit diversity is applied in uplinks includes a reference signal measurement unit configured to measure a receive level of the reference signal, a switch pitch determination unit configured to determine the antenna switch pitch of transmitting the reference signal based on the receive level measured by the reference signal measurement unit, and a transmitting unit configured to transmit the antenna switch pitch determined by the switch pitch determination unit. | 03-04-2010 |
20100056075 | ADJUSTABLE ANTENNA INTERFACE AND APPLICATIONS THEREOF - An adjustable antenna interface includes a single-ended to differential conversion circuit, an adjustable impedance matching circuit, an RF differential switch, and an input. The single-ended to differential conversion circuit converts inbound RF signals from single-ended signals to differential signals and converts outbound RF signals from differential signals to single-ended signals. The adjustable impedance matching circuit provides an impedance based on an impedance control signal. The RF differential switch provides the differential outbound RF signals from the IC to the single-ended to differential conversion circuit in accordance with a first antenna control signal and provides the differential inbound RF signals from the single-ended to differential conversion circuit to the IC in accordance with a second antenna control signal. The input receives the first antenna control signal, the second antenna control signal, and the impedance control signal from the IC. | 03-04-2010 |
20100062728 | Tuning an electrically small antenna - An electrically small antenna, such as one physically sized appropriate to a mobile device, can be tuned in response to a detected change that can result in poorer reception using the electrically small antenna. Such detected changes include a detected change in the connectivity of a wired accessory relative to the mobile device, a detected change in a position of the mobile device, and a detected change of an audio channel selected by the mobile device. To minimize any user impact of the retuning of the electrically small antenna, a timer can be initiated and the antenna can be retuned during an opportune time, such as when one or more signal metrics associated with a signal being provided to the user drop below a threshold, or when the timer expires, whichever occurs first. | 03-11-2010 |
20100075616 | SYSTEMS, METHODS, AND DEVICES FOR ASSOCIATING A CONTACT IDENTIFIER WITH A BROADCAST SOURCE - A media device including a broadcast receiver that receives broadcast media from a plurality of broadcast sources where the broadcast receiver is tunable to a first broadcast source. The media device also includes a data store that stores a list of contact identifiers where each contact identifier is associated with a broadcast source. The media device includes a user interface that: i) provides a prompt to a user to enable the user to initiate contact with the first broadcast source, and ii) receives a user indication to initiate contact with the first broadcast source. The media device further includes a transceiver that initiates the contact with the first broadcast source by sending a communications session request via a communications network to the first broadcast source that includes a contact identifier associated with the first broadcast source. | 03-25-2010 |
20100112962 | Calibration of transmit signals in fdd-transceivers - By the present invention a calibration and/or correction of transmit signals in a communication system using Frequency Division Duplex has been disclosed, in particular a method of calibration of a transmit signal to be transmitted in a device simultaneously receiving and transmitting signals in the communication system, wherein the transmit signal and the receive signal are separated by a predetermined frequency band gap. A down-conversion of the transmit signal received in the receiving path to an intermediate frequency is performed, whereby the intermediate frequency corresponds to the frequency band gap reduced by the intermediate frequency of the receive signal. A correction signal is derived from the intermediate received transmit signal and used to calibrate the transmit signal such that non-linearity effects caused by power amplifiers in the transmit path are effectively reduced. The present invention provides the advantages of an improved and simplified architecture and simultaneously of a clearly improved quality of transmit signals. | 05-06-2010 |
20100120377 | DUAL-MODE MIXER CIRCUIT AND METHOD - The present invention relates to a mixer circuit and method of frequency transformation, wherein an input signal is switched in accordance with a first local oscillator signal and in accordance with at least one second local oscillator signal having a smaller duty cycle than said first local oscillator signal, or having a respective predetermined phase shift with respect to said first local oscillator signal. Output signals obtained by the switching in accordance with the first and at least one second local oscillator signals are summed and the polarity of one of said first local oscillator signal and said at least one second local oscillator signal is switched in response to a control input, to thereby switch between a harmonic-rejection mode and a sub-harmonic mixing mode. | 05-13-2010 |
20100130140 | PORTABLE WIRELESS DEVICE - A mobile wireless device enables effective use of space in a case while reducing degradation of ah antenna gain and maintaining communication quality even if a plurality of antennas having different frequency bands are arranged close to one another. A magnetic antenna has a first switch unit, a second switch unit, and a concentrated constant circuit which are added to a wiring pattern at the side near to a main antenna, so that a first path and a second path can be selected. Under a predetermined condition, a CPU controls the first switch and the second switch to electrically connect a terminal (A | 05-27-2010 |
20100136925 | Tuning amplitude slope matched filter architecture - A tuning control system and associated method is provided for continuously and automatically tuning a lobed amplitude slope matching filter (ASMF) to a band center of an interfering signal to provide improved rejection of an interfering signal coupled from a transmission antenna into a local receive antenna in the presence of local multi-path, thereby Providing improved adaptive control loop performance. The tuning control system is provided as an element of an adaptive control loop. | 06-03-2010 |
20100144288 | MULTIPLE FREQUENCY BAND MULTIPLE STANDARD TRANSCEIVER - A transceiver includes a receiver section and a transmitter section. The receiver section converts an inbound Multiple Frequency Bands Multiple Standards (MFBMS) signal into a down converted signal, wherein the inbound MFBMS signal includes a desired signal component and an undesired signal component. In addition, the receiver section determines spectral positioning of the undesired signal component with respect to the desired signal component and adjusts at least one of the MFBMS signal and the down converted signal based on the spectral positioning to substantially reduce adverse affects of the undesired signal component on the desired signal component to produce an adjusted signal. The transmitter section converts an outbound symbol stream into an outbound MFBMS signal. | 06-10-2010 |
20100173593 | MULTIBAND MICROWAVE TERMINAL - A multiband microwave transceiver device, MMT, is disclosed. The device includes a circuit for coupling with an antenna, A | 07-08-2010 |
20100173594 | METHOD AND SYSTEM FOR RF COMMUNICATION FREQUENCY ARBITRATION - The present invention relates to bandwidth management or Arbitration of RF spectrum in multiple dwelling units through over-the-air channels and/or over power line channels. In one embodiment, each communication system including a base unit and/or extension unit scanning the usable frequencies for their particular set of optimal channels. And then share their optimal set of channels with all other communication systems in the detectable vicinity. Ancillary communications channels are established between all communication systems allowing for the current frequency assignments or rotational assignments to be passed to all communication systems within the same local environment. All bad or unusable channels common to the local environment are tracked and logged in all communication systems. | 07-08-2010 |
20100184388 | MOBILE WIRELESS COMMUNICATIONS DEVICE COMPRISING MULTI-FREQUENCY BAND ANTENNA AND RELATED METHODS - A mobile wireless communications device may include a housing and a multi-frequency band antenna carried within the housing. The multi-frequency band antenna may include a main loop conductor having a gap therein defining first and second ends of the main loop conductor, a first branch conductor having a first end connected adjacent the first end of the main loop conductor and having a second end defining a first feed point, and a second branch conductor having a first end connected adjacent the second end of the main loop conductor and a second end defining a second feed point. The antenna may further include a tuning branch conductor having a first end connected to the main loop conductor between the respective first ends of the first and second branches. | 07-22-2010 |
20100197243 | DEVICE AND METHOD FOR FREQUENCY SCANNING USING TWO RADIOS | 08-05-2010 |
20100222010 | ANTENNA SHARING FOR WIRELESSLY POWERED DEVICES - Exemplary embodiments include an antenna for receiving electromagnetic radiation in a broadcast radiation band and a near-field radiation band to generate a Radio Frequency (RF) signal. A coupling element couples the RF signal to a first port and at least one additional port, which may be a second port and a third port. A wireless power receiver on the first port includes a rectifier for converting the RF signal to a DC signal when the antenna couples to radiation in the near-field radiation band in a coupling-mode region of the antenna. A near-field communication transceiver includes circuitry for communicating information on the antenna in the near-field radiation band when the coupling element couples the second port to the RF signal. A broadcast receiver on the third port includes circuitry for receiving and tuning the broadcast radiation band when the coupling element couples the third port to the RF signal. | 09-02-2010 |
20100222011 | GAIN CONTROL IN A MULTIPLE RF TRANSCEIVER INTEGRATED CIRCUIT - A radio frequency (RF) transceiver integrated circuit (IC) includes a plurality of baseband Tx sections, a plurality of RF Tx sections, a plurality of RF Rx sections, and a plurality of baseband Rx sections. The RF transceiver IC further includes a static digital interface, a dynamic digital interface, and gain control, distribution, and buffering circuitry. Static digital interfaces are operable to receive static gain control commands from a coupled baseband processor. The dynamic digital interface is also operable to receive dynamic gain control commands from the coupled baseband processor. The gain control, distribution, and buffering circuitry is operable to apply the static gain control commands and dynamic gain control commands to at least some of the plurality of baseband Tx sections, the plurality of RF Tx sections, the plurality of RF Rx sections, and the plurality of baseband Rx sections. | 09-02-2010 |
20100233972 | COMMUNICATION DEVICE - Provided are a first filter | 09-16-2010 |
20100248649 | ANTENNA WITH INTEGRATED TUNING DETECTION ELEMENTS - In various embodiments, systems and methods for automatically tuning an antenna to a desired frequency utilize a tuning detection element that sends or receives a signal in accordance with one mode of the antenna and that is separated from the antenna by a gap and outside of a signal path of the antenna. In various system implementations, a processor communicates with the tuning detection element and antenna and monitors the amplitude of a signal transmitted to or from the tuning detection element. A resonant frequency of the antenna may be tuned to the desired frequency by a tuning element. | 09-30-2010 |
20100248650 | PROGRAMMABLE ANTENNA ASSEMBLY AND APPLICATIONS THEREOF - A programmable antenna assembly includes a configurable antenna structure, a configurable antenna interface, and a control module. The configurable antenna structure includes a plurality of antenna elements that, in response to an antenna configuration signal, are configured elements into at least one antenna. The configurable antenna interface module is coupled to the at least one antenna and, based on an antenna interface control signal, provides at least one of an impedance matching circuit and a bandpass filter. The control module is coupled to generate the antenna configuration signal and the antenna interface control signal in accordance with a first frequency band and a second frequency band such that the at least one antenna facilitates at least one of transmitting and receiving a first RF signal within the first frequency band and facilitates at least one of transmitting and receiving a second RF signal within the second frequency band. | 09-30-2010 |
20100261436 | Tuneable Filter - A radio receiver comprising: a frequency shifter for receiving a radio frequency signal including a wanted signal in a first frequency band and an interferer in a second frequency band overlapping the first frequency band, and for frequency shifting the radio frequency signal to form a frequency shifted signal, in which the first frequency band is shifted to a third frequency band below radio frequency and the second frequency band is shifted to a fourth frequency band; and a filter for receiving the frequency shifted signal and for attenuating the fourth frequency band relative to the parts of the third frequency band that do not include the fourth frequency band, wherein the filter is dynamically tuneable. | 10-14-2010 |
20100261437 | MULTIPLE FREQUENCY BAND INFORMATION SIGNAL UNIVERSAL FRONT END - A wireless device includes processing circuitry, a receiver section, a transmitter section, and an antenna. The processing circuitry determines a set of information signals of a RF Multiple Frequency Bands Multiple Standards (MFBMS) signal. The receiver section includes a plurality of receive paths, each having down-conversion circuitry that down-converts a portion of the RF MFBMS signal by a respective shift frequency to produce a corresponding baseband/low Intermediate Frequency (BB/IF) information signal. A combiner combines the plurality of BB/IF information signals to form a BB/IF MFBMS signal, from which the processing circuitry extracts data. The transmitter section includes a plurality of transmit paths, each having up-conversion circuitry operable to up-convert a respective BB/IF information signal received from the processing circuitry by a respective shift frequency to produce a corresponding RF information signal and a combiner that combines the RF information signals to form a RF MFBMS signal. | 10-14-2010 |
20100261438 | MULTIPLE FREQUENCY BAND INFORMATION SIGNAL UNIVERSAL FRONT END WITH ADJUSTABLE ADC(S) - A wireless device includes processing circuitry, a receiver section, a transmitter section, and an antenna. The processing circuitry determines a set of information signals of a RF Multiple Frequency Bands Multiple Standards (MFBMS) signal. The receiver section down-converts a portion of the RF MFBMS signal by one or more respective shift frequencies to produce a corresponding baseband/low Intermediate Frequency (BB/IF) information signal from which the processing circuitry extracts data. The transmitter section converts a respective BB/IF information signal received from the processing circuitry by a respective shift frequency to produce a corresponding RF information signal and a combiner that combines the RF information signals to form a RF MFBMS signal. The receiver section and the transmitter section include ADCs and/or DACs, respectively, that are adjustable based upon characteristics of the RF MFBMS signal, the BB/IF MFBMS signal, and/or based upon signals carried therein, e.g., modulation type, SNR requirements, etc. | 10-14-2010 |
20100285757 | METHOD AND SYSTEM FOR A CONFIGURABLE TUNED MOS CAPACITOR - Methods and systems for a configurable tuned MOS capacitor are disclosed and may include filtering undesired signals in a chip utilizing one or more configurable MOS capacitors comprising one or more MOS transistors. The source and drain terminals of the MOS transistors may be coupled together. The filtering frequencies may be tuned by configuring a resonance frequency of a matching circuit coupled to the source and drain terminals. The matching circuit may include a variable capacitor, which may include an array of binary-weighted addressable capacitors. The addressable capacitors may include MOS transistors. The matching circuit may include a variable inductor such as a multi-tap transmission line, and may be integrated on the chip and/or on a package to which the chip is bonded. A capacitance value of the configurable MOS capacitor may be configured utilizing a bias voltage on the matching circuit. | 11-11-2010 |
20100297957 | PROGRAMMABLE ANTENNA WITH CONFIGURATION CONTROL AND METHODS FOR USE THEREWITH - An antenna configuration controller configures a programmable antenna via a configuration procedure. The configuration procedure includes evaluating first candidate antenna configurations, based on quality data corresponding to each configuration. A selected antenna configuration is identified when the quality data corresponding to the selected antenna configuration compares favorably to a quality threshold. A first proper subset of the first candidate antenna configurations is selected when the quality data corresponding to the first candidate antenna configurations compares unfavorably to the quality threshold; and second candidate antenna configurations are generated, based on the first proper subset. The second candidate antenna configurations are evaluated, based on the quality data corresponding to each of the configurations; and a selected antenna configuration is identified from the second candidate antenna configurations, when the quality data corresponding to the selected antenna configuration compares favorably to the quality threshold. | 11-25-2010 |
20100297958 | TRANSCEIVER - The present invention provides a method for providing an optimal wireless communication method according to a change in a wireless communication environment. When the reception status is degraded while an HD stream signal, which uses a first wireless method, is transmitted and received, the method scans channels for which radar wave monitoring is not required and switches the transmission/reception to a second wireless method using free channel A. The method further scans channels for which radar wave monitoring is required and, if free channel B has a bandwidth wider than that of channel A is found, monitors channel B and if channel B is not used by a radar wave, switches the channel from channel A to channel B. | 11-25-2010 |
20100304692 | Mobile Communication Device and Reception Suppressing Method - It is an objective of the present invention to provide a mobile communication device and a reception suppressing method which can preferably perform communication even if a plurality of antennas is provided and a frequency bandwidth of a transmission signal or a reception signal of each antenna is in a close range with each other. | 12-02-2010 |
20100311352 | Radio frequency unit analog level detector and feedback control system - A Radio Frequency (RF) transceiver includes a baseband processor, a receiver section, and a transmitter section. The receiver section communicatively couples to the baseband processor and includes a plurality of tuned RF circuits. The transmitter section communicatively couples to the baseband processor and includes a plurality of tuned RF circuits. In a calibration operation, the transmitter section applies a RF test signal to its plurality of tuned RF circuits. The baseband processor applies a plurality of tuning control settings to each the tuned RF circuit. The baseband processor, for each of the plurality of tuning control settings, measures an output of the tuned RF circuit. The baseband processor selects a tuning control setting for the tuned RF circuit based upon at least one measured output of the tuned RF circuit. Finally, the baseband processor is operable to apply a selected tuning control setting to the tuned RF circuit. | 12-09-2010 |
20100317300 | MULTIPLE BAND DIRECT CONVERSION RADIO FREQUENCY TRANSCEIVER INTEGRATED CIRCUIT - A multiple band direct conversion radio frequency (RF) transceiver integrated circuit (IC) includes a multiple band direct conversion transmitter section, a multiple band direct conversion receiver section, and a local oscillation module. The multiple band direct conversion transmitter section includes a transmit baseband module and a multiple frequency band transmission module. The multiple band direct conversion receiver section includes a multiple frequency band reception module and a receiver baseband module. The local oscillation generation module is coupled to generate a first frequency band local oscillation when the multiple band direct conversion RF transceiver IC is in the first mode and coupled to generate a second frequency band local oscillation when the multiple band direct conversion RF transceiver IC is in the second mode. | 12-16-2010 |
20100323635 | Apparatus and methods for minimizing phase interaction between multiple tuner solutions - Embodiments of systems and methods for implementing multi-channel tuners are generally described herein. Other embodiments may be described and claimed. | 12-23-2010 |
20100323636 | Apparatus and methods for implementing multi-channel tuners - Embodiments of systems and methods for implementing multi-channel tuners are generally described herein. Other embodiments may be described and claimed. | 12-23-2010 |
20100330932 | Apparatus and methods for efficient implementation of tuners - Embodiments of systems and methods for the efficient implementation of tuners are generally described herein. Other embodiments may be described and claimed. | 12-30-2010 |
20100330933 | OUTPUT CIRCUIT OF HIGH-FREQUENCY TRANSMITTER - A transmitting and receiving device includes: a transmission circuit that transmits a signal by FM-modulating a carrier wave of the signal; an FM demodulation circuit that generates a demodulation signal by FM-demodulating the received signal; and a first filter circuit that changes a pass-band for letting the received signal pass through according to the demodulation signal, wherein the transmitting and receiving device perform a power supply line communication through the power supply line in which a signal is transmitted and received among a plurality of the transmitting and receiving devices. | 12-30-2010 |
20110028103 | IC WITH A CONFIGURABLE ANTENNA STRUCTURE - An integrated circuit (IC) includes a plurality of antenna elements, a coupling circuit, a control module, and an RF transceiver. The plurality of antenna elements is operable in a frequency range of approximately 55 GHz to 64 GHz. The coupling circuit is operable to couple the plurality of antenna elements into an antenna structure in accordance with an antenna configuration signal. The control module is coupled to generate the antenna configuration signal based on a mode of operation of the IC. The RF transceiver is coupled to convert an outbound symbol stream into an outbound RF signal and to convert an inbound RF signal into an inbound symbol stream in accordance with the mode of operation of the IC, wherein the inbound RF signal is received via the antenna structure and the outbound RF signal is transmitted via the antenna structure. | 02-03-2011 |
20110034133 | PROGRAMMABLE WIRELESS COMMUNICATION DEVICE - A wireless communication device includes a processing module, a receiver section, a transmitter section, and an antenna system. The processing module is operable to generate tuning information and configuration information of a given wireless communication protocol. The receiver section is configurable in accordance with the configuration information to convert an inbound radio frequency (RF) signal into an inbound symbol stream in accordance with the tuning information. The transmitter section is configurable in accordance with the configuration information to convert an outbound symbol stream into an outbound RF signal in accordance with the turning information. The antenna system is operable to provide an antenna structure in accordance with the configuration information to transceive the inbound and outbound RF signals. | 02-10-2011 |
20110053524 | METHOD AND APPARATUS FOR CALIBRATING A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a computer-readable storage medium having computer instructions to perform actual measurements of one or more performance parameters of a communication device according to a subset of tuning states of a tunable matching network operable in a communication device, determine estimated measurements of the one or more performance parameters of the communication device for a portion of the tuning states not included in the subset of tuning states according to the actual measurements, identify a data set for each of the one or more performance parameters from at least portions of the tuning states and the actual and estimated measurements, and determine from at least a portion of the date sets one or more tuning states that achieve at least one desirable performance characteristic of the communication device. Additional embodiments are disclosed. | 03-03-2011 |
20110065396 | RADIO BASE TRANSCEIVER STATION AND POWER SUPPLYING METHOD - A radio base station includes a radio equipment to which a power is supplied from a power source which supplies the power from a battery and a power source unit, and a radio control device which controls the radio equipment, and wherein the radio base transceiver station performs control for changing an operating band of the radio equipment according to switching of a power supply source to and from the power source unit and the battery in the radio equipment. | 03-17-2011 |
20110081872 | Digital Microwave Radio Link with a Variety of Ports - A microwave radio terminal capable of multiple gigabits/sec bit rate is provided. The radio terminal may use QAM modulation, including the two lowest modulation formats of BPSK and QPSK. The serial bit stream, including forward error correction (FEC) and all other overhead, is prepared in a digital circuit, such as a filed programmable gate array (FPGA) and is output serially, using SERDES devices inside the FPGA, as two separate channels known as “I-channel” and “Q-channel”. | 04-07-2011 |
20110092170 | PORTABLE ELECTRONIC COMMUNICATIONS APPARATUS, COMMUNICATIONS SYSTEM, METHOD OF PURGING ERROR DATA THEREFOR AND METHOD OF REDUCING RE-TUNING DELAY THEREFOR - A portable electronic communications apparatus includes a processing resource operably coupled to a Radio Data System communications unit. In at least one embodiment, the processing resource is also arranged to identify, when in use, a number of available frequencies capable of serving as a number of Alternative Frequencies, respectively. The processing resource communicates on a tuned frequency first Radio Data System data identifying the number of Alternative Frequencies. A data store is also operably coupled to the processing resource. The Radio Data System communications unit is arranged to re-tune, when in use, from the tuned frequency to another frequency of the number of available frequencies and to communicate on the another frequency second Radio Data System data, the re-tuning being supplemental to any re-tuning initiated as a result of inadequate signal strength associated with the tuned frequency. The number of Alternative Frequencies is kept below a certain maximum. The apparatus can be a navigation system. | 04-21-2011 |
20110098007 | METHODS AND APPARATUSES FOR TUNING FILTERS - Systems and methods according to the present invention address this need and others by providing filter tuning methods and apparatuses which directly measure filter attenuation by transmitting signaling tones through the filter(s). The measured attenuation is compared with the desired frequency response of the filter. The result of the comparison is used to tune the filter(s). | 04-28-2011 |
20110098008 | Method and system for FM tuner ground isolation when using ground signal line as FM antenna - Methods and systems are disclosed that utilize FM tuner ground isolation when using a ground signal line as an FM antenna for an FM tuner integrated circuit (IC) within a portable electronic system. The ground isolation can be implemented, for example, using one or more isolation elements, such as ferrite beads, coupled between the FM tuner ground and the device ground. The ferrite beads can also be coupled between other pins for the FM tuner and the device circuitry. A car lighter adapter (CLA) coupled to the device circuitry can be configured to provide a ground signal line for use as an antenna for the FM tuner IC. Further, signal lines on a printed circuit board (PCB) can also provide a ground signal line for use as an antenna for the FM tuner IC. The device can also be as a personal navigation device. | 04-28-2011 |
20110111706 | METHOD OF AND SYSTEM FOR TUNING AN ANTENNA - A method of tuning an antenna is provided, wherein the method comprises receiving a first signal strength indicator indicating a signal strength of a first data signal transmitted by an antenna on a first frequency, receiving a second signal strength indicator indicating a signal strength of a second data signal transmitted by the antenna on a second frequency different to the first frequency, determining a tuning control signal based on the first signal strength indicator and the second signal strength indicator, and tuning the antenna based on the control signal. | 05-12-2011 |
20110117862 | Multiband RF Device - A device or system for transmission and reception for voice or data communication applications. The device or system is capable of duplex operation and adapted to operate in an environment using a plurality of frequency bands. The present disclosure also relates to a communication means including a transmitter and receiver arrangement and to antennas. | 05-19-2011 |
20110117863 | COMMUNICATIONS CIRCUITRY FOR AN ELECTRONIC DEVICE - The control of an antenna tuner for a portable electronic device includes closed loop tuning when sufficient transmit power is present. The closed loop tuning commences using a predetermined antenna tuner configuration for an operational band and device state. The closed loop tuning may be constrained by a tuning range associated with the predetermined antenna tuner configuration for the operational band and device state. Also, when transmit power is low or when a transceiver is in a receive only state, open loop tuning may be conducted by placing the antenna tuner in the predetermined (or default) configuration for the operational band and phone state. | 05-19-2011 |
20110183632 | COEXISTENCE FOR COGNITIVE RADIO - A system for managing wireless communication in view of other potentially interfering wireless signal sources. Signal-related information may be collected from one or more apparatuses that are participating in a network. The information may then be evaluated in order to determine expected signal activity in the environment in which the apparatuses are operating. In some instances the signal activity may then be compared to a scan schedule utilized, for example, to identify legacy apparatuses operating in the environment. This scan schedule may be altered to avoid potential conflicts that may exist with the expected signal activity. The scan schedule may then be communicated to the networked apparatuses. | 07-28-2011 |
20110183633 | Antenna Apparatus and Communication Apparatus - According to one embodiment, an antenna apparatus comprises a first antenna element, a first lumped constant element, a first lumped constant element, a switch and at least one second lumped constant element. The first antenna element comprises a forward part, a folded part and a backward part, the forward part includes a start point connected to a feeding point, and the backward part includes an end point connected to ground. The first lumped constant element is inserted in the backward part. The switch is configured to select a current path in accordance with a control signal. The at least one second lumped constant element is to be selectively connected in parallel to the first lumped constant element through the switch. | 07-28-2011 |
20110230146 | COMMUNICATION DEVICE - Provided is a communication device capable of extending a power supply unit to a second casing without the need for additional components. A mobile telephone ( | 09-22-2011 |
20110237206 | SWITCHED POWER AMPLIFIER TOPOLOGY PROVIDING HIGH EFFICIENCY - A switched power amplifier contained in a circuit is implemented to receive a single-ended input signal and generate a single-ended output signal, the single-ended output signal being a power-amplified version of the single-ended input signal. The switched power amplifier provides high efficiency. | 09-29-2011 |
20110244812 | APPARATUS AND METHODS FOR MINIMIZING PERFORMANCE LOSS IN MULTIPLE TUNER SOLUTIONS - Embodiments of systems and methods for implementing multi-channel tuners are generally described herein. Other embodiments may be described and claimed. | 10-06-2011 |
20110275333 | RE-CONFIGURABLE BUILT-IN ANTENNA FOR PORTABLE TERMINAL - A re-reconfigurable built-in antenna of a portable terminal is provided. The antenna includes an antenna radiator having a feeding pad electrically connected to a feeding portion of a main board of the terminal and at least one ground pad disposed in a position different from that of the feeding pad for selectively establishing an electrical connection to a ground portion of the terminal, and a switching element, commonly connected to the at least one ground pad of the antenna radiator, for selectively establishing an electrical connection to the ground portion by a switching operation. The antenna radiator changes a shape of the antenna radiator by using the selective electrical connection of the ground portion so as to have various operational frequency bands and radiation properties. | 11-10-2011 |
20110281532 | APPARATUS AND METHOD FOR ANTENNA MATCHING IN MOBILE DEVICE - An apparatus and a method of realizing an antenna matching in accordance with a user's body effect and a state of a mobile device are provided. The method includes determining a state of the mobile device on a basis of a call mode and at least one of whether an external device is connected to the mobile device, whether a receiver is being used, whether a speaker is being used, and whether a proximity sensor is activated, determining an optimal Tunable Matching Network (TMN) circuit adjustment value in accordance with the determined state, and performing the antenna matching in accordance with the optimal TMN circuit adjustment value. | 11-17-2011 |
20110287724 | FM TRANSMITTER, BROADCAST RECEIVER, AND METHOD FOR TRANSMITTING AUDIO - A frequency modulation (FM) transmitter, a broadcast receiver having the same, and a method of transmitting an audio are provided. The FM transmitter selects a specific frequency from among frequencies in FM frequency band, which exclude a frequency in use, and transmits an audio signal over the selected specific frequency. Accordingly, the FM transmitter can transmit the audio signal using the confusion-free or interference-free frequency. As a result, a user can select a frequency to transmit the audio of the broadcast receiver easily. | 11-24-2011 |
20110300812 | COMMUNICATIONS CIRCUITRY FOR AN ELECTRONIC DEVICE - Communications circuitry includes a controlled antenna tuner. The voltage across elements of the antenna tuner may be determined and, if an over-voltage situation is detected, remedial action may be taken. At times when a configuration of the antenna tuner is to be maintained and an over-voltage condition exists, the remedial action may include lowering an output power from a transceiver. Another type of remedial action may include introducing a phase shift between an antenna and the antenna tuner. At times when a configuration of the antenna tuner is to be changed and an over-voltage condition exists, the remedial action may include reducing output power of the transceiver. Another type of remedial action may include waiting for an opportune time to change the antenna tuner configuration. | 12-08-2011 |
20110312287 | Operating a Voltage Regulator at a Switching Frequency Selected to Reduce Spurious Signals - Embodiments for at least one method and apparatus of a wireless transceiver are disclosed. For one embodiment, the wireless transceiver includes a transmit chain, wherein the transmit chain includes a power amplifier. The wireless transceiver additionally includes a receiver chain that is tunable to receive wireless signals over at least one of multiple channels, wherein the multiple channels are predefined. Further, the wireless transceiver includes a voltage converter. The voltage converter provides a supply voltage to the power amplifier, and operates at a single switching frequency, wherein the single switching frequency and all harmonics of the single switching frequency fall outside of the multiple channels. | 12-22-2011 |
20110319037 | IMPLEMENTING METHOD FOR MATCHING FREQUENCY BANDS OF MOBILE TERMINALS, AND MOBILE TERMINAL AND MAINBOARD THEREOF - An implementing method for matching the frequency bands of the mobile terminals, a mobile terminal, and a mainboard thereof are disclosed. The mobile terminal involves a signal transmitting/receiving module with at least two frequency bands, a radio-frequency transmitting module, a radio-frequency receiving module and a radio-frequency front-end module. The mobile terminal further involves a first connection selection module and a second connection selection module. The implementing method for matching the frequency bands of the mobile terminals comprises the following steps. The multi frequency bands bonding pad compatibility is achieved respectively on the circuit board by the radio-frequency transmitting module, the radio-frequency receiving module and the radio-frequency front-end module. When the mobile terminal has to work within a certain frequency band, one end of the first connection selection module is connected with the transmitting pin of the frequency band in the signal transmitting/receiving module, and the other end is connected with the radio-frequency transmitting module. One end of the second connection selection module is connected with the receiving pin of the frequency band in the signal transmitting/receiving module, and the other end is connected with the radio-frequency receiving module. The radio-frequency front-end module is connected with the radio-frequency transmitting module and the radio-frequency receiving module. | 12-29-2011 |
20120015610 | FREQUENCY SYNTHESIZER - A frequency synthesizer includes: a first oscillator ( | 01-19-2012 |
20120142284 | SYSTEM AND METHOD FOR ADJACENT CHANNEL POWER DETECTION AND DYNAMIC BANDWIDTH FILTER CONTROL - A system for detecting and minimizing interference in a radio receiver includes a plurality of bandpass filters having different response characteristics, a power detector configured to compare a power output of a first bandpass filter and a second bandpass filter, and logic to cascade a third bandpass filter when the difference in power output between the power output of the first bandpass filter and the power output of the second bandpass filter exceeds a threshold amount. | 06-07-2012 |
20120184225 | MEMS and Switched Capacitors Configured for Increased Resolution Switching - Certain aspects of a method and system for increased resolution switching using MEMS and switched capacitors may include a mobile terminal that includes an integrated circuit bonded to a multi-layer package. A capacitance of a first switched capacitor array in the multi-layer package may be tuned via one or more MEMS switches integrated in and/or on the multi-layer package. A capacitance of a second switched capacitor array in the integrated circuit may be tuned via one or more NMOS switches. A plurality of signals may be transmitted and/or received via one or more antennas in the mobile terminal. | 07-19-2012 |
20120196547 | Calibration of a Receiver for Channel Equalization Using a Transmitter - Aspects of a method and system for compensating for using a transmitter to calibrate a receiver for channel equalization are provided. Various embodiments of the invention may be applicable wireless devices in TDM systems, Bluetooth, and/or WLAN applications, for example. Transmit tones may be generated by a transmitter PLL and the baseband response may be measured for each of the injected tones. The tones may be swept over a frequency range and a corresponding oscillator signal may be mixed with the received signal to determine the response of, for example, the receiver filters. Adjusting any of a plurality of receiver and/or transmitter parameters based on baseband measurements may provide appropriate channel compensation or calibration. Accordingly, the baseband circuitry may generate equalization signals, which may be utilized to adjust receiver and/or transmitter circuitry. This approach may be provide I/Q balancing and transmit filtering calibration after receiver calibration is completed. | 08-02-2012 |
20120196548 | System and Method for Operational Parameter Selection to Avoid Interference in a Wireless Communication System - A wireless communication device uses operational parameters stored in a capabilities list to control operation of the device. The device may also provide auxiliary services, such as reception of broadcast television signals and location detection using network assisted GPS. When auxiliary services are selected, the cellular operation may cause interference with the auxiliary services. The wireless communication device includes a reduced set of capabilities to control operation of the wireless communication device when an auxiliary service is requested. The particular set of reduced capabilities may depend on the specific type of auxiliary service that has been requested. Upon termination of the auxiliary services, the full capabilities list may be restored and the operation of the wireless communication device is thereafter controlled by the full set of operational capabilities. | 08-02-2012 |
20120220243 | METHOD AND APPARATUS FOR TUNING A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a non-transitory computer-readable storage medium including computer instructions to obtain at least one operational parameter associated with a communication device and to adjust a steerable antenna of the communication device when the communication device does not satisfy an impedance threshold, where the satisfying of the impedance threshold is determined based on the at least one operational parameter. Additional embodiments are disclosed. | 08-30-2012 |
20120225625 | Method and Arrangement for Tuning Polarizations for Orthogonally Polarized Antennas - The present invention relates to a method and a transceiver device in a wireless communication system that enable tuning of the polarization generated by a cross-polarized transmitting antenna configuration of an eNB. This is addressed by a solution where the polarization is adjusted ( | 09-06-2012 |
20120231750 | TUNABLE LOOP ANTENNAS - Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. A parallel-fed loop antenna may be formed from portions of a conductive bezel and a ground plane. The antenna may operate in multiple communications bands. The bezel may surround a peripheral portion of a display that is mounted to the front of an electronic device. The bezel may contain a gap. Antenna feed terminals for the antenna may be located on opposing sides of the gap. A variable capacitor may bridge the gap. An inductive element may bridge the gap and the antenna feed terminals. A switchable inductor may be coupled in parallel with the inductive element. Tunable matching circuitry may be coupled between one of the antenna feed terminals and a conductor in a coaxial cable connecting the transceiver circuitry to the antenna. | 09-13-2012 |
20120264380 | Polar Amplification Transmitter Distortion Reduction - A method of optimising a transmitter, the transmitter including a polar amplification stage including a main signal path and a magnitude signal path, a receiver being located with the transmitter, the method comprising: generating an amplified signal for transmission at the output of the amplifier; tuning the receiver to a frequency to reject the intended transmit signal of the transmitter; determining a characteristic of a signal detected in the receiver representing an indication of distortion in the transmitted signal; and adjusting a setting of the transmitter in dependence on the determined characteristic. | 10-18-2012 |
20120276859 | METHOD AND APPARATUS FOR AVOIDING IN-DEVICE INTERFERENCE - A method is provided for avoiding in-device interference. The method may include determining a portion of a frequency band used for data reception by a first wireless modem that may be affected by interference from a data transmission by a second wireless modem. The method may further include causing an indication of the determined portion of the frequency band to be provided to the first wireless modem. A corresponding apparatus and computer program product are also provided. | 11-01-2012 |
20120289171 | EXTENDING THE UPPER FREQUENCY LIMIT OF A COMMUNICATIONS RADIO - A communications radio or transceiver having an extended upper operating frequency limit of at least | 11-15-2012 |
20120295554 | METHOD AND APPARATUS FOR TUNING A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a tuning system for a communication device having an antenna, where the tuning system includes at least one first tunable element connected with at least one radiating element of the antenna for tuning the antenna where the adjusting of the at least one first tunable element is based on at least one of a use case associated with the communication device and location information associated with the communication device, and a matching network having at least one second tunable element coupled at a feed point of the antenna, wherein the matching network receives control signals for adjusting the at least one second tunable element to tune the matching network. Additional embodiments are disclosed. | 11-22-2012 |
20120295555 | METHOD AND APPARATUS FOR TUNING A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a tuning system for a communication device having an antenna where the tuning system includes at least one first tunable element connected with at least one radiating element of the antenna for tuning the antenna where the adjusting of the at least one first tunable element is based on a closed loop process, and a matching network having at least one second tunable element coupled at a feed point of the antenna for tuning the matching network based on an operational parameter of the communication device. Additional embodiments are disclosed. | 11-22-2012 |
20120309327 | RF AMPLIFIER WITH OPEN CIRCUIT INPUT OFF-STATE - An amplifier including an amplifier transistor, and a switch transistor, wherein the amplifier is configured to be switched on and off by controlling bias voltages of the transistors. | 12-06-2012 |
20120322393 | MULTIBAND LOOP ANTENNA AND PORTABLE RADIO COMMUNICATION DEVICE COMPRISING SUCH AN ANTENNA - An exemplary embodiment of an antenna device for operation in at least two operational frequency bands generally includes a loop element having a feeding end for connection to radio communication circuitry and a grounding end for connection to ground. The antenna device also includes first filtering means connecting the grounding end to ground, and switching means parallel with the first filtering means. The switching means is configured to connect the grounding end to ground parallel with the first filtering means in a first state, to match the loop element to a first operational frequency band of the at least two operational frequency bands. The switching means is configured to connect the grounding end to an open end parallel with the first filtering means in a second state, to match the loop element to a second operational frequency band of the at least two operational frequency bands. | 12-20-2012 |
20130005277 | SYSTEM AND METHODS FOR ADAPTIVE ANTENNA OPTIMIZATION | 01-03-2013 |
20130005278 | SYSTEM AND METHODS FOR ADAPTIVE ANTENNA OPTIMIZATION | 01-03-2013 |
20130023220 | SIGNAL RECEIVING APPARATUS AND WIRELESS COMMUNICTION DEVICE - A signal receiving apparatus includes a first base member, a first coil, and a tuning circuit. The first coil is coiled around the first base member to from a first loop antenna having a plurality of parallel and spaced coil portions and two signal output terminals. The tuning circuit includes a first variable capacitor connected between the two signal output terminals. | 01-24-2013 |
20130035044 | EFFICIENT FRONT END AND ANTENNA IMPLEMENTATION - A tightly integrated combined transmit and receive dual quadrifilar antenna is provided. The antenna comprises four helical transmit elements and four helical receive elements disposed about a common axis. A receiver front end includes an arrangement of two 90 degree hybrids which serve to effectively reject signals cross coupled from the transmit elements back into the receive elements, while still allowing the receiver to receive signals. | 02-07-2013 |
20130035045 | MOBILE WIRELESS COMMUNICATIONS DEVICE WITH SELECTIVELY CONTROLLED ANTENNA AND FILTER SWITCHES AND RELATED METHODS - A mobile wireless communications device may include transmit paths operating on respective different frequency bands, an antenna, and an antenna switch between the transmit paths and the antenna. The device may include a harmonic filter attenuating a harmonic frequency of a first frequency band of a first transmit path, and also attenuating a second frequency band of a second transmit path; a filter switch between the harmonic filter and the antenna; and a processor. The processor may selectively control the antenna switch and the filter switch so that when the antenna switch couples the first transmit path to the antenna, the filter switch couples the harmonic filter to the antenna, and when the filter switch couples the second transmit path to the antenna, the filter switch decouples the harmonic filter from the antenna. | 02-07-2013 |
20130052967 | ANTENNA TUNING ON AN IMPEDANCE TRAJECTORY - A method, transceiver integrated circuit (IC), and communications device for generating antenna tuning states derived from a pre-established trajectory of tuning states to adjust a detected signal level towards a preset, given value. A tuning state generation (TSG) controller determines whether a detected signal level matches a given value. If the detected signal level does not match the given value, the TSG controller selects an initial preset tuning state from a pre-established trajectory corresponding to a pre-identified operating condition that best matches a current operating condition. The TSG logic forwards the initial preset tuning state to the antenna tuner to trigger impedance transformation. Following generation of the initial preset tuning state, the controller receives an updated detected signal level. If the updated detected signal level fails to match the given value, the controller generates an incremental tuning state that is interpolated between the initial and a final preset tuning states. | 02-28-2013 |
20130059550 | APPARATUS AND METHOD FOR BODY PROTECTION FROM ELECTROMAGNETIC FIELDS - An apparatus for use in a communication device with an antenna protects a body from electromagnetic fields. The apparatus includes a sensing unit to sense a surrounding environment of the communication device, a variable element to perform a variable operation according to a voltage or current applied thereto. The apparatus further includes a variable element control unit to control the voltage or current according to the surrounding environment sensed by the sensing unit to cause the variable element to perform the variable operation, and an intelligent periodic structure coupled with the variable element, the intelligent periodic structure being configured to change an operation frequency of the wireless communication device according to the variable operation of the variable element and adjust a radiation pattern direction of the antenna. | 03-07-2013 |
20130065541 | Radio-Frequency Power Amplifier Circuitry with Linearity Optimization Capabilities - An electronic device may be located in a geographical cell that is served by a base station. The electronic device may communicate with the base station on a frequency band. The frequency band may be subject to adjacent band emissions requirements to help prevent interference with wireless devices that are operating in adjacent frequency bands. The adjacent band emission requirements may vary based on the frequency band used to communicate with the base station, the geographical cell, and/or the presence of public safety radios. To satisfy the adjacent band emissions requirements while minimizing power consumption, the electronic device may receive cell information from the base station and adjust power amplifier linearity based on the received information. | 03-14-2013 |
20130090072 | MOBILE TERMINAL, AND METHOD FOR IMPROVING RADIATION PERFORMANCE AND SPECIFIC ABSORPTION RATE OF AN ANTENNA OF A MOBILE TERMINAL - A method and a mobile terminal of improving radiation performance and Specific Absorption Rate (SAR) of an antenna are provided. The mobile terminal includes a controller for generating a control signal for switching a ground according to a frequency band used by an antenna, and a switch unit for switching a contact point for each frequency band according to the control signal. | 04-11-2013 |
20130109330 | IMPEDANCE BALANCING FOR TRANSMITTER TO RECEIVER REJECTION | 05-02-2013 |
20130122827 | Radiation Power Level Control System and Method for a Wireless Communication Device Having Tunable Elements - A radiation power level compliance and control scheme for a wireless user equipment (UE) device including one or more tunable elements. The wireless UE device comprises a component configured to detect one or more changes with respect to at least one operational parameter associated with the wireless UE device. A component is provided for determining that a tunable action is required with respect to at least one of the tunable elements. Upon defining one or more tunable element settings, a component is configured to determine a Specific Absorption Rate (SAR) value, which is compared against an acceptable limit. If the SAR is within the limit, appropriate tuning control signals are provided to the tunable elements according to the defined tunable element settings. If the SAR is not within the limit or is about to exceed the limit, then the tunable element settings may be changed and retested. | 05-16-2013 |
20130122828 | MOBILE TERMINAL WITH ANTENNA TO TUNE A RESONANCE FREQUENCY BAND AND OPERATING METHOD THEREOF - A mobile terminal including an antenna to change an operating frequency band includes a sub-resonance generator that generates a sub-resonance to shift the operating frequency band. The sub-resonance generator may be electrically or physically connected to a main antenna of the mobile terminal. The sub-resonance generator is connected to at least one impedance matcher and switch, and the opening and closing of the switch results in the generation of the sub-resonance. A sub-resonance generated in a higher frequency band than a first frequency band of the antenna device may result in the shift to a third frequency band with a main resonance at a lower frequency than the main resonance of the first frequency band and vice versa. | 05-16-2013 |
20130122829 | Apparatus, Methods, Computer Programs and Computer Readable Storage Mediums for Wireless Communications - An apparatus including a first port configured to receive signals from a transceiver and to receive a first antenna; a second port configured to receive signals from a transceiver and to receive a second antenna; a first reactive component coupled to the first port; a second reactive component coupled to the first reactive component at a first junction and to the second port, wherein at least the first reactive component is configured to have an impedance that shifts the phase of a first signal, in a second operational resonant frequency band, received from the first antenna, and the second reactive component is configured to have an impedance that shifts the phase of a second signal, in the second operational resonant frequency band, received from the transceiver, so that the first signal and the second signal at least partially destructively interfere with one another at the first junction. | 05-16-2013 |
20130137383 | LINEAR FET FEEDBACK AMPLIFIER - A circuit that includes a Darlington transistor pair having an input transistor and an output transistor configured to generate an output signal at an output node in response to an input signal received through the input node is disclosed. The circuit has a resistor-inductor-capacitor (RLC) type frequency bias feedback network communicatively coupled between the output transistor and the input node for providing biasing to the Darlington transistor pair as well as for adjusting at least one characteristic of an amplified version of the input signal that passes through the input transistor and into the frequency bias network. The circuit further includes a feedback coupling network coupled between the output node and the input node for feeding back to the input node a portion of the amplified version of the input signal that passes through the input transistor. | 05-30-2013 |
20130157590 | ADAPTIVE TRANSCEIVER FOR UTILIZING WHITE SPACE SPECTRUM IN MOBILE APPLICATION - One embodiment of the present invention provides a transceiver for a wireless mobile device. The transceiver includes a transmitter, a receiver, and a bandwidth-determination mechanism configured to determine a transmission bandwidth for the transmitter and a receiving bandwidth for the receiver. | 06-20-2013 |
20130165055 | OUTPUT STAGE FOR WIRELESS TRANSMITTER - In one embodiment, an apparatus includes a first block configured to decompose an input signal into a positive component and a negative component. The apparatus further includes a second block configured to generate a mixer positive driver component from the positive component and a mixer negative driver component from the negative component and input the mixer positive driver component and the negative driver component into a mixer for a wireless transmitter. | 06-27-2013 |
20130165056 | WIRELESS COMMUNICATIONS DEVICE WITH AN ADJUSTABLE IMPEDANCE MATCHING NETWORK AND ASSOCIATED METHODS - A mobile wireless communications device includes a portable housing, a transmitter carried by the portable housing and configured to modulate an input signal, and an adjustable impedance matching network coupled downstream from the transmitter. An antenna is coupled downstream from the adjustable impedance matching network, and a non-directional coupler is coupled between the adjustable impedance matching network and the antenna. A feedback receiver is coupled to the non-directional coupler to generate a feedback signal. A controller is configured to control the adjustable impedance matching network based upon the input signal and the feedback signal. | 06-27-2013 |
20130171947 | SYSTEM AND METHOD OF DUPLEX WIRELESS AUDIO LINK OVER BROADCAST CHANNELS - A device and method of duplex audio communication over a broadcast channel are disclosed. The device and method disclosed in the present invention use the clear channel technique to automatically select an un-occupied channel for the transmit side and utilizes an identification embedded in a sub-channel to allow the receiver to automatically tune to the channel used by the transmitter. The clear channels may be determined by respective transceivers or determined by a master transceiver. | 07-04-2013 |
20130178172 | TUNABLE WIRELESS ANTENNA FOR INFORMATION HANDLING DEVICE WIRELESS COMMUNICATION - Systems, methods and products directed toward tuning a wireless antenna of an information handling device are disclosed herein. One aspect includes tuning one or more wireless antennas connected to an information handling device via one or more antenna tuning pins arranged within a system bus slot; wherein the one or more antenna tuning pins are configured to tune the one or more wireless antennas to operate within a frequency band based on one or more connections with one or more wireless communication pins of a device interface module arranged to interface with the system bus slot. Other embodiments are described herein. | 07-11-2013 |
20130183910 | SYSTEM AND METHOD FOR TUNING AN ANTENNA IN A WIRELESS COMMUNICATION DEVICE - In accordance with the present disclosure, method may include receiving one or more environment parameter signals indicative of an environment of a wireless communication element. The method may also include communicating one or more control signals to an antenna tuner of the wireless communication element for controlling an impedance of the antenna tuner based on the one or more environment parameter signals. | 07-18-2013 |
20130203364 | Tunable Antenna System with Multiple Feeds - Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form an antenna having first and second feeds at different locations. The transceiver circuit may have a first circuit that handles communications using the first feed and may have a second circuit that handles communications using the second feed. A first filter may be interposed between the first feed and the first circuit and a second filter may be interposed between the second feed and the second circuit. The first and second filters and the antenna may be configured so that the first circuit can use the first feed without being adversely affected by the presence of the second feed and so that the second circuit can use the second feed without being adversely affected by the presence of the first feed. | 08-08-2013 |
20130210373 | Systems and Methods for Tuning an Antenna for a Frequency Modulation Transceiver - Systems and methods for tuning an antenna for a frequency modulation (FM) transceiver are provided. A representative system includes: a network of electrical adjustable passive components that receives and sends radio frequency (RF) signals to a receiver circuitry via the network of electrical adjustable passive components. The receiver circuitry determines the received signal strength indication (RSSI) of the RF signal. The system further includes a transmitter circuitry that transmits RF signals via the network of electrical adjustable passive components, and a peak detector circuitry that receives and determines a voltage output of the RF signals from the variable capacitors. An auto-tune circuitry receives the RSSI and output value from the receiver circuitry and the peak detector circuitry, respectively. The auto-tune circuitry is configured to adjust capacitance values of at least one of the serial variable capacitor and the parallel variable capacitor based on the RSSI and the voltage output during the reception and transmission of the RF signals, respectively. | 08-15-2013 |
20130217342 | ANTENNA ELEMENT AS CAPACITIVE PROXIMITY/TOUCH SENSOR FOR ADAPTIVE ANTENNA PERFORMANCE IMPROVEMENT - A method and communications device for providing antenna tuning to compensate for antenna de-tuning caused by a presence of an object detected using an antenna element within a capacitive touch and proximity sensor (CTPS). The CTPS propagates object detection signals associated with a detected object to a detection IC. An object detection and antenna tuning (ODAT) logic uses object detection signal information to generate tuning control signals to trigger compensatory antenna tuning, based on pre-established mappings of object detection signal data and antenna tuning states. The tuning control signals indicate at least one of (a) a level of compensatory antenna impedance tuning and (b) an amount of compensatory antenna length adjustment. In response to generating the tuning control signals, the ODAT logic triggers the propagation of the tuning control signals to the antenna matching and control circuit to provide the corresponding antenna tuning. | 08-22-2013 |
20130217343 | WIRELESS COMMUNICATION UNIT, INTEGRATED CIRCUIT AND METHOD THEREFOR - A wireless communication unit is described that includes a transceiver; at least one antenna port operably coupled to the transceiver via at least one antenna switch; a radio frequency part of the transceiver that includes at least one tuneable radio frequency (RF) component; and a test signal generator for generating an RF test signal for receiver calibration. The radio frequency part includes a coupler located between the at least one tuneable RF component and the at least one antenna switch for coupling the RF test signal to or from the radio frequency part for calibration. | 08-22-2013 |
20130225097 | METHOD FOR CANCELLING INTERMODULATION NOISE SIGNAL BETWEEN ANTENNAS AND COMMUNICATION TERMINAL APPARATUS - A communication terminal apparatus and method for performing wireless communication, including a first channel including a first antenna to transmit a first signal at a first frequency, a second channel including a second antenna to receive or transmit one or more second signals at a frequency other than the first frequency of the first signal, and a feedback circuit unit to selectively generate a feedback signal to the second channel to reduce a noise signal from the first signal among the one or more second signals received or transmitted through the second channel. The feedback circuit unit may include a coupler to segment and transfer at least a portion of the first signal, a filter unit to transmit a frequency signal, a phase converter to modulate a phase of the signal transmitted through the filter, and a gain control amplifier to amplify the phase-modulated signal. | 08-29-2013 |
20130225098 | WIRELESS COMMUNICATION DEVICE, METHOD FOR CONTROLLING WIRELESS COMMUNICATION DEVICE, PROGRAM, AND STORAGE MEDIUM - In a wireless communication device ( | 08-29-2013 |
20130231068 | PORTABLE ELECTRONIC DEVICE AND METHOD FOR TUNING AN ANTENNA - A portable electronic device and method for tuning an antenna is provided. The portable electronic device includes an antenna, a tunable element, a first input unit, at least one additional input unit, and a processor. The method involves receiving a first set of data, determining a plurality of possible physical states, activating a second input unit, receiving a second set of data from the second input unit, selecting a physical state of the portable electronic device from the plurality of possible physical states, and tuning the antenna based on the physical state of the portable electronic device. | 09-05-2013 |
20130237162 | MOBILE COMMUNICATION DEVICE - A mobile communication device includes an antenna unit to operate in multiple frequency bands by shifting the resonance frequency of the antenna using capacitors. A first capacitor unit may be formed by the disposal of a first electrode in a hole in a first antenna pattern and the formation of a second electrode in the portion of the first antenna pattern opposing the first electrode. The first capacitor unit may be formed in various ways to be activated by a switch. The connection of the first capacitor unit to a voltage supply and ground may trigger a shift in the resonant frequency of the first antenna pattern. | 09-12-2013 |
20130237163 | Smart Antenna Utilizing Leaky Wave Antennas - Methods and systems for a smart antenna utilizing leaky wave antennas (LWAs) are disclosed and may include a programmable polarization antenna including one or more pairs of LWAs configured along different axes. One or more pairs of leaky wave antennas may be configured to adjust polarization and/or polarity of one or more RF signals communicated by the programmable polarization antenna. RF signals may be communicated via the configured programmable polarization antenna utilizing the configured one or more pairs of the leaky wave antennas. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. The polarization and/or polarity may be configured utilizing switched phase modules. The LWAs may include microstrip or coplanar waveguides, wherein a cavity height of the LWAs is dependent on spacing between conductive lines in the waveguides. The LWAs may be integrated in one or more integrated circuits, packages, and/or printed circuit boards. | 09-12-2013 |
20130244590 | Apparatus and methods for mitigating protocol-induced back-offs in a communication network - Methods and apparatus for mitigating data server time-outs in e.g., a hybrid wireless network. In one exemplary embodiment, a client device operating in a hybrid network environment utilizes its knowledge about tune-away periods so as to minimally affect data network operation. For example, during periods of data downlink activity, the client device induces some delay in the acknowledgement packets sent back towards the network prior to entering into a tune away period. These delayed acknowledgement packets result in an increased retransmission time out period value thereby reducing the probability of encountering a data server time-out. Alternative embodiments are also discussed which preoccupy the network apparatus during these tune away periods so as to also mitigate time-outs during these periods. These mitigation algorithms are useful in both downlink and uplink data transmissions. Apparatus for implementing these methodologies are also disclosed. | 09-19-2013 |
20130244591 | LIMITED Q FACTOR TUNABLE FRONT END USING TUNABLE CIRCUITS AND MICROELECTROMECHANICAL SYSTEM (MEMS) - A wireless device is described. The wireless device includes a tunable front end module. The tunable front end module includes a Tx microelectromechanical system bandpass filter. The tunable front end module also includes a first Rx microelectromechanical system bandpass filter. The wireless device also includes a power amplifier. The wireless device further includes a low noise amplifier. | 09-19-2013 |
20130244592 | RADIO FREQUENCY ARCHITECTURE FOR SPECTRUM ACCESS NETWORKS - Radio frequency (RF) architectures for spectrum access networks are provided. Embodiments of the invention generally provide a radio frequency (RF) architecture for customer premise equipment (CPE) for use in, for example, IEEE 802.22 wireless regional area networks (WRANs). In some embodiments, the CPE RF architecture includes two receive chains with a directional antenna and an omni-directional antenna, respectively. The CPE RF architecture facilitates opportunistic out-of-band spectrum sensing and WRAN signal receiving that are performed in parallel with data transmission. | 09-19-2013 |
20130267184 | HYBRID TECHNIQUES FOR ANTENNA RETUNING UTILIZING TRANSMIT AND RECEIVE POWER INFORMATION - An embodiment of the present invention provides an apparatus, comprising a transceiver, an antenna tuner connecting said transceiver to an antenna, a power sensor adapted to acquire measurements about transmit power, a receive signal strength indicator (RSSI) adapted to acquire measurements about receive power and wherein said tuner tunes said antenna based upon said transmit and receive measurements to optimize said antenna in both the receive and transmit bands. | 10-10-2013 |
20130281031 | ADAPTIVE COSITE ARBITRATION SYSTEM - A system for coupling a communication unit to an antenna. The system includes a tunable bandpass filter and a second tunable filter, such as a tunable low-pass filter, in parallel with the tunable bandpass filter. The system also includes a measurement and control unit configured to measure a frequency of a signal generated by the communication unit and to tune the tunable bandpass filter to pass the signal generated by the control unit. | 10-24-2013 |
20130281032 | METHOD AND APPARATUS FOR CALIBRATING A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a computer-readable storage medium having computer instructions to perform actual measurements of one or more performance parameters of a communication device according to a subset of tuning states of a tunable matching network operable in a communication device, determine estimated measurements of the one or more performance parameters of the communication device for a portion of the tuning states not included in the subset of tuning states according to the actual measurements, identify a data set for each of the one or more performance parameters from at least portions of the tuning states and the actual and estimated measurements, and determine from at least a portion of the date sets one or more tuning states that achieve at least one desirable performance characteristic of the communication device. Additional embodiments are disclosed. | 10-24-2013 |
20130288615 | CONNECTOR ASSEMBLY TO SUPPORT MULTIPLE ANTENNAS - Example embodiments disclosed herein relate to a connector assembly that includes a plurality of antennas including a first antenna operating at a first frequency and a second antenna operating at a second frequency different from the first antenna. The SMA connector assembly also includes an SMA socket to mount the plurality of antennas on an SMA aperture of the computing device and a controller to select at least one antenna of the plurality of antennas corresponding to at least one operating frequency. Example methods and machine-readable storage media are also disclosed. | 10-31-2013 |
20130288616 | Self Calibration Method for Radio Equipment with Receive and Transmit Circuitry - A self-calibration circuit and associated method for testing an RF device includes the RF device to be tested having transmit and receive sections, and a built-in self test (BIST) circuit coupled to the transmit and receive sections of the RF device on the same chip. The self-calibration circuit is configured to calibrate the receive section of the RF device in a receive test mode, and calibrate the transmit section of the RF device in a subsequent transmit test mode using the calibrated receive section to measure a transmit output signal from the transmit section and to provide calibration data therefrom used in the transmit section calibration. The self-calibration circuit may include a duplex filter coupled between the transmit and receive sections and the BIST circuit, and a multiplexor coupled between the RF device, and the BIST circuit, configured to select one or more of a plurality of RF devices to be tested. | 10-31-2013 |
20130309980 | METHOD FOR SENSING AND CALIBRATING ANTENNA TUNER DEVICE PERFORMANCE IN CELLULAR HANDSET - Systems and methods for calibrating antenna tuner device parameters can involve measuring a first signal level of an antenna tuner device, adjusting a tuning setting of the antenna tuner device, measuring one or more adjusted signal levels of the antenna tuner device, determining a level change between the first signal level and the one or more adjusted signal levels, comparing the level change to a predefined reference level change, and adjusting a device setting of the antenna tuner device to compensate for a difference between the level change and the predefined reference level change. | 11-21-2013 |
20130316662 | Electronic Devices, Methods, and Computer Program Products for Making a Change to an Antenna Element Based on a Power Level of a Transmission Power Amplifier - A method of operating an electronic device includes providing a plurality of antenna elements, determining that a change is to be made to at least one of the plurality of antenna elements, and scheduling the change to the at least one of the plurality of antenna elements during a time interval that a transmission power amplifier has a power level below a threshold. The change to the at least one of the plurality of antenna elements may also be made responsive to a reduction to the power level of the transmission power amplifier below the threshold. | 11-28-2013 |
20130324057 | DETERMINING A DELIVERED POWER ESTIMATE AND A LOAD IMPEDANCE ESTIMATE USING A DIRECTIONAL COUPLER - A wireless device configured for optimizing a delivered power is described. The wireless device includes a filter duplexer or switch coupled to a transmitter and a receiver. The wireless device also includes a power/impedance detector coupled to the filter duplexer or switch. The power/impedance detector includes a directional coupler. An antenna is coupled to the power/impedance detector. Other aspects, embodiments and features are also claimed and described. | 12-05-2013 |
20130331042 | CONTROL OF TRANSMIT POWER AND ADJUSTMENT OF ANTENNA TUNING NETWORK OF A WIRELESS DEVICE - Techniques for controlling transmit power and adjusting an antenna tuning network of a wireless device are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or a circuit module) includes a directional coupler and at least one detector. The directional coupler receives an input radio frequency (RF) signal at a first port, provides an output RF signal at a second port, and provides a coupled RF signal at a third port. The detector(s) receive at least one RF signal on at least one port of the directional coupler, measure the at least one RF signal, and provide measurements that are used to control the transmit power of the wireless device and adjust an antenna tuning network. For example, the measurements may be used to determine incident power, reflected power, delivered power, etc., which may be used to control the transmit power and/or adjust the antenna tuning network. | 12-12-2013 |
20140004804 | TIME-VARIANT ANTENNA ENABLED BY SWITCHED CAPACITOR ARRAY ON SILICON | 01-02-2014 |
20140024321 | METHOD AND APPARATUS FOR ANTENNA TUNING AND POWER CONSUMPTION MANAGEMENT IN A COMMUNICATION DEVICE - A system that incorporates teachings of the subject disclosure may include, for example, a controller that determines a radiated throughput for at least one of an uplink throughput or a downlink throughput of the communication device, reduces transmit power for the communication device responsive to the radiated throughput satisfying a throughput threshold, and tunes a matching network of the communication device responsive to the radiated throughput not satisfying the throughput threshold. Other embodiments are disclosed. | 01-23-2014 |
20140030987 | METHODS AND APPARATUS FOR TUNING A COMMUNICATION DEVICE - A system that incorporates teachings of the subject disclosure may include, for example, method for initiating a mode of operation of a communication device, measuring a signal to determine an adverse operational effect on the communication device, determining a tuning state from the signal to compensate for the adverse operational effect, tuning a circuit of the communication device having a variable reactance according to the tuning state, storing the tuning state in a memory of the communication device, and tuning the circuit according to the tuning state retrieved from the memory responsive to detecting a reoccurrence of the mode of operation of the communication device. Other embodiments are disclosed. | 01-30-2014 |
20140038531 | HIGH-FREQUENCY FRONT-END CIRCUIT - A high-frequency front-end circuit includes a first variable filter and a second variable filter. One end of each of the variable filters is connected to a common terminal. The other end of the first variable filter is connected to a transmission individual terminal and the other end of the second variable filter is connected to a reception individual terminal. At the time of transmission of a transmission signal, the impedance of the second variable filter is adjusted such that the impedance seen on the second variable filter side from a connection point between the variable filters is open. At the time of transmission of a reception signal, the impedance of the first variable filter is adjusted such that the impedance seen on the first variable filter side from a connection point between the variable filters is open. | 02-06-2014 |
20140045440 | WIRELESS TRANSCEIVER AND METHOD OF SETTING OPERATING FREQUENCY - The wireless transceiver includes: a liquid crystal display (LCD) which includes a display screen; an LCD control unit which controls the LCD to display a frequency distribution of a signal strength in a predetermined frequency range including an operating frequency on the display screen; a touch panel and a touch panel control unit which detect a manipulation of a user on the display screen; an operating frequency storage unit which stores reception frequency information corresponding to a reception frequency and transmission frequency information corresponding to a transmission frequency; and a control unit which updates the reception frequency information stored in the operating frequency storage unit or the transmission frequency information stored in the operating frequency storage unit based on information about a frequency corresponding to a manipulation location of the manipulation detected by the touch panel and the touch panel control unit. | 02-13-2014 |
20140057578 | Mobile Device and Antenna Structure Therein - A mobile device including an antenna structure is provided. The antenna structure includes a main radiation element, a parasitical element, and a tunable element. The main radiation element has a feeding pin coupled to a signal source, wherein the feeding pin is substantially located at an end of the main radiation element. The parasitical element is close to the main radiation element, and has a parasitical pin which is substantially located at an end of the parasitical element. The tunable element includes a switch and a plurality of paths, wherein the switch selectively couples one of the paths to the parasitical pin in such a manner that the antenna structure operates in multiple bands. | 02-27-2014 |
20140057579 | Feedback Receiver for Antenna Tuner Calculations - Some embodiments of the present disclosure relate to a feedback receiver comprising a threshold comparator configured to determine if the amplitude of a baseband signal is within a selection corridor (e.g., defined by an upper and lower threshold value). If the amplitude is within the selection corridor, a feedback receiver is configured to accumulate RF signal samples (e.g., amplitude and phase samples) over a time period. The accumulated RF signal samples, which correspond to substantially constant baseband amplitude values, are then averaged. The calculated averages are utilized for impedance measurements used tune an antenna tuner to limit impedance mismatch. By limiting RF amplitude and phase sample collection to associated baseband signals having an amplitude falling within the selection corridor, substantially equal average amplitudes and phases can be achieved over a relatively short measurement period (i.e., without the need for long measurement period). | 02-27-2014 |
20140057580 | PROGRAMMABLE WIRELESS COMMUNICATION DEVICE - A wireless communication device includes a processing module, a receiver section, a transmitter section, and an antenna system. The processing module is operable to generate tuning information and configuration information of a given wireless communication protocol. The receiver section is configurable in accordance with the configuration information to convert an inbound radio frequency (RF) signal into an inbound symbol stream in accordance with the tuning information. The transmitter section is configurable in accordance with the configuration information to convert an outbound symbol stream into an outbound RF signal in accordance with the turning information. The antenna system is operable to provide an antenna structure in accordance with the configuration information to transceive the inbound and outbound RF signals. | 02-27-2014 |
20140065981 | CHIP CARD COMMUNICATION ARRANGEMENT AND CHIP CARD COMMUNICATION CIRCUIT - According to an embodiment, a chip card communication arrangement is provided comprising a matching network and a chip card communication circuit comprising at least one matching network terminal, a receiver coupled to the matching network via the at least one matching network terminal and an active transmitter coupled to the matching network via the at least one matching network terminal. | 03-06-2014 |
20140065982 | PLUG-AND-PLAY TIME-VARIANT ANTENNA MODULE FOR WIRELESS COMMUNICATION DEVICES - A plug-and-play antenna may be used with many different types of wireless communication devices. An antenna may be coupled to an impedance tuning component and a waveform generator. A calibration control module receives radio status information, controls the waveform generator to vary a response of the antenna, and tunes the impedance tuning component to match impedances between a radio and the antenna. | 03-06-2014 |
20140073265 | Radio Circuits and Components Thereof Including Temperature Responsive Liquid MEMS - A radio circuit includes an adjustable RF front-end module on an IC die, a liquid MEMS component on a board, and a processing module on the IC die. The adjustable RF front-end module adjusts processing of an inbound or an outbound RF signal based on a compensation control signal. The liquid MEMS component changes an operational characteristic as temperature of the radio circuit varies. The processing module generates the compensation signal based on the changing of the operational characteristic of the liquid MEMS component. The liquid MEMS component includes a channel within the board, a liquid droplet contained within the channel, and one or more conductive elements proximal to the channel. | 03-13-2014 |
20140120849 | STANDING WAVE RATIO METER FOR INTEGRATED ANTENNA TUNER - The invention provides circuitry integrated into a silicon chip that measures aspects of an RF signal on a transmission line in order to provide data that is ultimately used by an antenna tuner circuit to substantially match the impedance of the antenna with that of the transmission line providing the RF frequency to be transmitted. | 05-01-2014 |
20140120850 | ADAPTIVE ANTENNA MATCHING VIA A TRANSCEIVER-BASED PERTURBATION TECHNIQUE - Embodiments are directed to a transceiver comprising a first section and a second section, and a controller configured to: receive an uplink reflected power measurement and a downlink power measurement at the same time, calculate an impedance associated with the first section based on the uplink power measurement and the downlink power measurement, and provide a tuning parameter to the second section to match an impedance of the second section with the impedance of the first section. | 05-01-2014 |
20140128007 | MOBILE DEVICE AND TUNABLE ANTENNA THEREIN - A mobile device includes an antenna, an ESD (Electrostatic Discharge) protection component, a plurality of branches, and a switch. The antenna is configured to transmit and receive an RF (Radio Frequency) signal. The branches provide different inductances or different capacitances, and are respectively coupled to a ground voltage terminal. The switch is coupled through the ESD protection component to the antenna, and switches between the branches according to a control signal such that the antenna is capable of operating in a plurality of frequency intervals. The ESD protection component is configured to protect the switch from being damaged. | 05-08-2014 |
20140134962 | DEVICE SYSTEM THAT PERFORMS RADIO-FREQUENCY MATCHING WITH A STYLUS ANTENNA - A device system is provided, comprising: a stylus comprising a first antenna; a receptacle for the stylus; a second antenna; and, at least one antenna tuning circuit enabled to: perform RF (radio-frequency) matching with the first antenna when the stylus is present in the receptacle to at least one of transmit and receive data via the first antenna; and, perform RF matching with the second antenna when the stylus is not present in the receptacle to at least one of transmit and receive the data via the second antenna. | 05-15-2014 |
20140148105 | INPUT DEVICE WITH SWITCHABLE FREQUENCY CHANNEL - An input device for switchable use between first and second computer systems. A controller of the input device can execute switching logic to direct a radio transceiver of the input device to switch an operating channel of the radio transceiver to a first channel monitored by the first computer system in response to a first event, and thereby, the input device can be utilized to insert data into the first computer system. The controller can execute switching logic to direct the radio transceiver to switch the operating channel to a second channel monitored by the second computer system in response to a second event, and thereby, the input device can be utilized to insert data into the second computer system. | 05-29-2014 |
20140148106 | Wireless Communication Apparatus, Wireless Communication System, Wireless Communication Method and Program - A wireless communication apparatus is provided that performs wireless communication using a specified wireless channel and forms part of an ad hoc wireless network. The device includes a recording portion that records country ID information and recording-time information in to a storage medium, where the recording-time information indicates the time at which the country ID information was recorded in to the storage medium, a time determination portion that uses the recording-time information to determine whether a predetermined time period has elapsed from the time at which the country ID information was recorded, and a channel setting portion that, when the predetermined time period has not elapsed from the time at which the country ID information was recorded in the storage medium, sets a wireless channel to a frequency channel that can be used in the country indicated by the country ID information recorded in the storage medium. | 05-29-2014 |
20140187178 | Method and Apparatus for a Tunable Antenna - A method for tuning an antenna comprising determining an operating frequency band of the antenna, and adjusting a capacitance of a tunable load according to the operating frequency band, wherein the tunable load is electromagnetically coupled to the antenna via a parasitic arm, and wherein the operating frequency band depends on the capacitance. | 07-03-2014 |
20140187179 | Spatially Diverse Antennas for a Headset Computer - The invention presented relates to wireless handsfree head worn headset computing devices including a microdisplay device and spatially diverse antenna system. The spatially diverse antenna system provides an effective headset computing device radiation pattern that enables arbitrary user movement and promotes freedom of mobility. Disclosed is a headset computing device including a head worn frame having a profile relatively low in height with respect to a user's head, the user's head creating a RF shadow region along the headset profile by blocking line-of-sight RF propagation paths, the headset includes two or more antennas integrated with the headset frame to sufficiently maintained its low profile. Each antenna has a radiation pattern and are collectively arranged to form an omnidirectional radiation pattern, where at least a first radiation pattern provides coverage in the line-of-sight propagation path while the at least second radiation antenna pattern is in the RF shadow region. | 07-03-2014 |
20140187180 | METHOD AND APPARATUS FOR RADIO ANTENNA FREQUENCY TUNING - A system that incorporates teachings of the present disclosure may include, for example, a non-transitory computer-readable storage medium, which can include computer instructions to determine a subset of use cases from a group of use cases stored in a memory of a communication device, and to determine a target use case from among the subset of use cases based on an operational parameter associated with a transceiver of the communication device. Additional embodiments are disclosed. | 07-03-2014 |
20140194074 | METHOD AND APPARATUS FOR WIRELESS COMMUNICATIONDEVICE MULTIBAND TUNABLE RADIO ARCHITECTURE - A method and apparatus provide a wireless communication device multiband tunable radio architecture. The apparatus can include a multiband transceiver configured to transmit and receive wireless communication signals. The apparatus can include a tunable transmit notch filter coupled to the multiband transceiver. The tunable transmit notch filter can provide low insertion loss in a transmit band and attenuation at a receive frequency. The apparatus can include a tunable circulator coupled to the tunable transmit notch filter. The tunable circulator can provide transmit to receive isolation. The apparatus can include a tunable receive filter coupled to the multiband transceiver. The tunable receive filter can provide low insertion loss at a receive frequency and attenuation at other frequencies. | 07-10-2014 |
20140194075 | VARIABLE ANTENNA MATCH LINEARITY - In embodiments of variable antenna match linearity, a wireless device includes a first transceiver and a second transceiver, an antenna via which signals are received, and a linearity controller that varies a linearity of an antenna match circuit associated with the antenna. The linearity controller can determine whether a frequency of an intermodulated signal that includes transmissions from the first and second transceivers is within one of a respective receive band of the first transceiver or the second transceiver. The linearity controller can increase a linearity of the antenna match circuit to mitigate an amplitude of the intermodulated signal in the receive band. | 07-10-2014 |
20140194076 | SYSTEMS AND METHODS FOR MINIMIZING SPURS THROUGH DUTY CYCLE ADJUSTMENT - A frequency source, such as for a wireless communications device, configured to have a duty cycle adjustment. A selected harmonic spur resulting from operation of the frequency source at one duty cycle may be avoided or minimized by operating the frequency source at a second duty cycle. Determination of the appropriate duty cycle may be based on measuring the amplitude of the harmonic spur as it appears in the output of a receive chain of the wireless device. Alternatively, the duty cycle may be set to desired value to avoid or minimize a given harmonic. | 07-10-2014 |
20140199950 | SLEEVE WITH ELECTRONIC EXTENSIONS FOR A CELL PHONE - A passively re-radiating cell phone sleeve assembly capable of receiving a nested cell phone provides signal boosting capabilities and provides a radar enablement. Signal boosting is enabled by use of an additional antenna, a pass-through repeater, dual antenna isolation capability and other features. | 07-17-2014 |
20140206296 | Transceiver with Asymmetric Matching Network - A system on a chip (SoC) includes a transceiver comprising a transmitter and a receiver, wherein at least one of the transmitter and receiver has a configurable portion that can be configured to operate in a single ended mode and in a differential mode. Two interface pins are provided for coupling the transceiver to an antenna via a matching network, wherein the two interface pins are shareably coupled to the transmitter and to the receiver. A tunable capacitor is coupled to differential signal lines of the configurable portion, wherein the tunable capacitor is configured to be tuned to optimize impedance matching of the configurable portion for each mode of operation. | 07-24-2014 |
20140206297 | Adjustable Wireless Circuitry with Antenna-Based Proximity Detector - An electronic device such as a portable electronic device has wireless communications circuitry. Antennas in the electronic device may be used in transmitting radio-frequency antenna signals. A coupler and antenna signal phase and magnitude measurement circuitry may be used to determine when external objects are in the vicinity of the antenna by making antenna impedance measurements. In-band and out-of-band phase and magnitude signal measurements may be made in determining whether external objects are present. Additional sensors such as motion sensors, light and heat sensors, acoustic and electrical sensors may produce data that can be combined with the proximity data gathered using the antenna-based proximity sensor. In response to detecting that an external object such as a user's body is within a given distance of the antenna, the electronic device may reduce transmit powers, switch antennas, steer a phased antenna array, switch communications protocols, or take other actions. | 07-24-2014 |
20140206298 | METHODS FOR REDUCING NEAR-FIELD RADIATION AND SPECIFIC ABSORPTION RATE (SAR) VALUES IN COMMUNICATIONS DEVICES - A method is provided for reducing near-field radiation and specific absorption rate (SAR) values in a communications device. The communications device includes a multimode antenna structure transmitting and receiving electromagnetic signals and circuitry for processing signals communicated to and from the antenna structure. The antenna structure includes: a plurality of antenna ports operatively coupled to the circuitry; a plurality of antenna elements, each operatively coupled to a different one of the antenna ports; and one or more connecting elements electrically connecting the antenna elements at a location on each antenna element that is spaced apart from an antenna port coupled thereto to form a single radiating structure and such that electrical currents on one antenna element flow to a connected neighboring antenna element and generally bypass the antenna port coupled to the neighboring antenna element, the electrical currents flowing through the one antenna element and the neighboring antenna element being generally equal in magnitude, such that an antenna mode excited by one antenna port is generally electrically isolated from a mode excited by another antenna port at a given desired signal frequency range and the antenna structure generates diverse antenna patterns. The method includes adjusting the relative phase between signals fed to neighboring antenna ports of the antenna structure such that a signal fed to the one antenna port has a different phase than a signal fed to the neighboring antenna port to provide antenna pattern control and to increase gain in a selected direction toward a receive point. The method features using a transmit power lower than the transmit power used in a non-pattern control operation of the antenna structure such that the communications device obtains generally equivalent wireless link performance with the receive point using reduced transmit power compared to the non-pattern control operation, thereby reducing the specific absorption rate. | 07-24-2014 |
20140220907 | Operational Parameter Selection to Avoid Interference in a Wireless Communication System - A wireless communication device uses operational parameters stored in a capabilities list to control operation of the device. The device may also provide auxiliary services, such as reception of broadcast television signals and location detection using network assisted GPS. When auxiliary services are selected, the cellular operation may cause interference with the auxiliary services. The wireless communication device includes a reduced set of capabilities to control operation of the wireless communication device when an auxiliary service is requested. The particular set of reduced capabilities may depend on the specific type of auxiliary service that has been requested. Upon termination of the auxiliary services, the full capabilities list may be restored and the operation of the wireless communication device is thereafter controlled by the full set of operational capabilities. | 08-07-2014 |
20140235183 | INTERPOSER PACKAGE STRUCTURE FOR WIRELESS COMMUNICATION ELEMENT, THERMAL ENHANCEMENT, AND EMI SHIELDING - Embodiments of provide an integrated circuit (IC) device. The IC device can include a substrate having first and second opposing surfaces, an IC die electrically coupled to the first surface of the substrate, a plurality of contact members coupled to the first surface of the substrate, and an interposer. The interposer can include a plurality of contact elements located on a first surface thereof, each conductive element being coupled to a respective one of the plurality of contact members, and an antenna formed using a conductive layer of the interposer, the antenna being electrically coupled to the IC die through at least one of the plurality of contact elements and at least one of the plurality of contact members. | 08-21-2014 |
20140256270 | METHODS OF CONTROLLING RESONANCE FREQUENCIES IN NEAR FIELD COMMUNICATION DEVICES, NEAR FIELD COMMUNICATION DEVICES AND ELECTRONIC SYSTEMS HAVING THE SAME - A method of controlling a resonance frequency of a Near Field Communication (NFC) device that includes a resonance unit to transceive data through an electromagnetic wave and an NFC chip may comprise: detecting whether an NFC card or reader exists around the NFC device; when the NFC card is detected, setting a resonance frequency of the resonance unit as a first optimal frequency based on a magnitude of a voltage generated from the resonance unit while a carrier wave is radiated to the NFC card through the resonance unit; and/or when the NFC reader is detected, setting the resonance frequency of the resonance unit as a second optimal frequency based on the magnitude of the voltage generated from the resonance unit in response to the wave received from the NFC reader and/or a magnitude of an inner current generated from the NFC chip in response to the wave. | 09-11-2014 |
20140273886 | METHOD AND APPARATUS FOR TUNING AN ANTENNA BASED ON UNRELIABLE DATA - A method and apparatus for tuning an antenna of a communication device includes receiving, at a processing element within the communication device, data relevant to tuning the antenna and identifying an unreliable portion of the data. The method also includes identifying, based on the unreliable portion of the data, a first set of tuning states for tuning the antenna, wherein the first set of tuning states is a subset of a plurality of possible tuning states for tuning the antenna. The method further includes restricting tuning of the antenna to tuning states within the first set of tuning states. | 09-18-2014 |
20140273887 | TUNABLE ILA AND DILA MATCHING FOR SIMULTANEOUS HIGH AND LOW BAND OPERATION - A method and system configures a wireless communication device to support simultaneous signal propagation using a single narrow band antenna. An antenna tuner controller (ATC) configures a tunable low band matching circuit to provide a first antenna matching in order to support propagation of a low band signal with a first signal path. The ATC configures a tunable high band matching circuit to provide a second antenna matching which can support propagation of a high band signal within a second signal path. In addition, the ATC provides isolation between the tunable matching circuits, utilizing a diplexer circuit having a low band component coupled to the first signal path and a high band component coupled to the second signal path. The ATC simultaneously propagates the low and high band signals using a single, shared narrow band antenna coupled to the first and second signal paths. | 09-18-2014 |
20140287698 | PERTURBATION-BASED DYNAMIC MEASUREMENT OF ANTENNA IMPEDANCE IN REAL-TIME - Devices and methods are disclosed for real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a receiver. Processing logic is operable to solve multiple non-linear equations to determine the reflection coefficient of the antenna. The tunable matching network is repeatedly perturbed and the power received by the antenna is measured after each perturbation at the same node in the matching network. The measured power values are used by an optimizer in converging to a solution that provides the reflection coefficient of the antenna. The reflection coefficient of the antenna may be used to determine the input impedance of the antenna. The elements of the matching circuit may then be adjusted to match the input impedance of the antenna. | 09-25-2014 |
20140302800 | METHOD AND APPARATUS FOR CALIBRATING A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a computer-readable storage medium having computer instructions to perform actual measurements of one or more performance parameters of a communication device according to a subset of tuning states of a tunable matching network operable in a communication device, determine estimated measurements of the one or more performance parameters of the communication device for a portion of the tuning states not included in the subset of tuning states according to the actual measurements, identify a data set for each of the one or more performance parameters from at least portions of the tuning states and the actual and estimated measurements, and determine from at least a portion of the date sets one or more tuning states that achieve at least one desirable performance characteristic of the communication device. Additional embodiments are disclosed. | 10-09-2014 |
20140302801 | CELLULAR PHONE AND APPARATUS FOR TUNING TO A SELECTED FREQUENCY MODULATION STATION AND DOWNCONVERTING A CORRESPONDING RADIO FREQUENCY SIGNAL FOR AUDIO PLAY OUT - A cellular phone including a transceiver and a processing module. The transceiver receives, from a device separate from the cellular phone, a radio or intermediate frequency signal. The radio frequency signal has been tuned by the device to a selected frequency. The intermediate frequency signal is a downconverted version of the radio frequency signal. Each of the radio and intermediate frequency signals includes the content. The content has been frequency modulated and broadcast at the selected frequency prior to the transceiver receiving the radio or intermediate frequency signal. A processing module downconverts the radio or intermediate frequency signal to a baseband signal and converts the baseband signal to a digital signal. The processing module either forwards the digital signal for audio play out of the content at the cellular phone or forwards the digital signal to the transceiver for transmission of the digital signal back to the device. | 10-09-2014 |
20140315500 | MILLIMETER WAVE PHASE SHIFTERS USING TUNABLE TRANSMISSION LINES - Tunable phase shifters and methods for using the same include a signal line; one or more grounding lines; one or more crossing lines below the signal line in proximity to the signal line and substantially perpendicular to a longitudinal direction of the signal line, where the crossing lines conform to the shape of the signal line along at least three surfaces of the signal line and where the crossing lines have a tunable capacitance; and an inductance return line below the crossing lines substantially parallel to the longitudinal direction of the signal line, where the inductance return line provides a tunable inductance. | 10-23-2014 |
20140323063 | Methods for Manufacturing an Antenna Tuning Element in an Electronic Device - Custom antenna structures may be used to improve antenna performance and to compensate for manufacturing variations in electronic device antennas. An electronic device antenna may include an antenna tuning element and conductive structures formed from portions of a peripheral conductive housing member and other conductive antenna structures. The antenna tuning element may be connected across a gap in the peripheral conductive housing member. The custom antenna structures may be used to couple the antenna tuning element to a fixed custom location on the peripheral conductive housing member to help satisfy design criteria and to compensate for manufacturing variations in the conductive antenna structures that could potentially lead to undesired variations in antenna performance. Custom antenna structures may include springs and custom paths on dielectric supports. | 10-30-2014 |
20140323064 | MCM INTEGRATION AND POWER AMPLIFIER MATCHING OF NON-RECIPROCAL DEVICES - Devices are described herein that operate according to non-reciprocal behaviors. The devices may be manufactured and integrated into substrates and discrete components according to described techniques. The devices may be configured in ways to achieve increased device performance while decreasing the overall device size. The devices may be actively tuned to facilitate impedance matching with other circuit components such as power amplifiers. Tuning includes adjustment of magnetic fields and impedance values associated with the devices using techniques and components described herein and may be based upon changes in circuit or device parameters such as temperature, voltage, and current. The devices described herein may be configured as non-reciprocal devices that include ferrites with metallization patterns that may be in the form of microstrip circuitry or in stripline formats depending upon configuration. | 10-30-2014 |
20140323065 | Method and Terminal Device for Automatically Tuning Impedance Matching of Multi-Frequency Band Antenna - This invention provides a method and a terminal device for a multi-band antenna automatically tuning impedance matching, and belongs to the technical field of communication. The method includes: obtaining an operation current value and an output power value of a power amplifier upon transmitting a signal; obtaining a logical control parameter for controlling an antenna tuner based on the operation current value and the output power value, and adjusting the impedance matching of the antenna by using the logical control parameter. The efficiency for impedance matching of the antenna upon operating in the multi-bands may be improved, and the power saving can be better implemented under the condition of assuring the performance of the antenna. | 10-30-2014 |
20140323066 | MULTIPLE BAND MULTIPLE MODE TRANSCEIVER FRONT END FLIP-CHIP ARCHITECTURE AND CIRCUITRY WITH INTEGRATED POWER AMPLIFIERS - An integrated circuit architecture and circuitry is defined by a die structure with a plurality of exposed conductive pads arranged in a grid of rows and columns. The die structure has a first operating frequency region with a first transmit and receive chain, and a second operating frequency region with a second transmit chain and a second receive chain. There is a shared region of the die structure defined by an overlapping segment of the first operating frequency region and the second operating frequency region with a shared power supply input conductive pad connected to the first transmit chain, the second transmit chain, the first receive chain, and the second receive chain, and a shared power detection output conductive pad connected to the first transmit chain and the second transmit chain. | 10-30-2014 |
20140329475 | Front-end Circuit for Band Aggregation Modes - A front-end circuit for a wireless communication unit includes at least two antenna feeds. At least one of the antennas is coupled to an antenna switch. The circuit comprises filters and duplexers and is prepared to operate a number of FDD frequency bands. Each FDD band comprises an Rx band for receive signals and a Tx band for transmit signals. The circuit provides a single band operation mode for each frequency band and aggregated band operation modes. In an aggregated band operation mode Rx signals can be received in two different frequency bands at the same time as well as Tx signals can be transmitted in at least one of the two different frequency bands. In addition, TDD bands as well as GSM bands are covered. | 11-06-2014 |
20140342676 | MATCHING CIRCUIT AND WIRELESS COMMUNICATION DEVICE USING THE SAME - A matching circuit electronically connected between an antenna and a radio frequency (RF) module includes a first admittance circuit and a second admittance circuit. The first admittance circuit is electronically connected between the antenna and the RF module. The first admittance circuit is configured to adjust resonance frequencies of the antenna at multiple frequency bands by changing an admittance of the first admittance circuit. A first end of the second admittance circuit is electronically connected between the RF module and the first admittance circuit. A second end of the second admittance circuit is grounded. The second admittance circuit is configured to reduce the first admittance circuit from influence of high frequency signals. | 11-20-2014 |
20140342677 | HYBRID TECHNIQUES FOR ANTENNA RETUNING UTILIZING TRANSMIT AND RECEIVE POWER INFORMATION - An embodiment of the present invention provides an apparatus, comprising a transceiver, an antenna tuner connecting said transceiver to an antenna, a power sensor adapted to acquire measurements about transmit power, a receive signal strength indicator (RSSI) adapted to acquire measurements about receive power and wherein said tuner tunes said antenna based upon said transmit and receive measurements to optimize said antenna in both the receive and transmit bands. | 11-20-2014 |
20140349593 | METHOD AND APPARATUS FOR CALIBRATING AN ITERATIVE MATCHING NETWORK TUNER - A system that incorporates teachings of the subject disclosure may include, for example, identifying a usage mode of the communication device, running a calibration session that includes adjusting a starting point for tuning of the matching network based on a categorized history of previous tuning search paths and based on the usage mode where the categorized history of previous tuning search paths is generated based on monitoring previous tuning search paths during previous tuning and based on monitoring previous usage modes during the previous tuning, and adjusting a tuning search path for the tuning of the matching network based on the categorized history of previous tuning search paths and the usage mode where the adjusting of the starting point and the adjusting of the tuning search path reduces a tuning search time and provides a unique solution for the tuning. Other embodiments are disclosed. | 11-27-2014 |
20140349594 | WIRELESS COMMUNICATION APPARATUS - A wireless communication apparatus includes: attenuators provided in wireless devices for attenuating an input level of a reception signal; a monitoring unit for monitoring communication states of the wireless devices; and a control unit that performs control to determine whether or not the input level of the reception signal of the wireless device to be controlled out of the wireless devices will be excessive because of a wireless communication to be performed by the second wireless device other than the wireless device to be controlled, based on the communication states of the wireless devices monitored by the monitoring unit and to attenuate the input level of the reception signal by operating the attenuator of the wireless device when determination is made that the input level of the reception signal will be excessive. | 11-27-2014 |
20140357200 | Method and Apparatus for Controlling Parameters of an Antenna Tuner - The present invention discloses a control method, an apparatus and a computer program for antenna tuner parameters of a radio transceiver. The updating moments of the antenna tuner parameters are selected depending on predominant interference status in the receiver. Based on the sensed interference level, an update decision is made whether the external interference is below a selected threshold value. The parameter change is executed only in low interference situations. In high interference levels (low SIR), the antenna tuner parameters are calculated but they are not enforced in the antenna tuner. The control process for updating the antenna tuner parameters is continuous in given time intervals. | 12-04-2014 |
20140364069 | METHOD AND APPARATUS FOR REDUCING CHARGE AND DISCHARGE TIME OF CAPACITIVE ELEMENTS - A system that incorporates teachings of the subject disclosure may include, for example, emulating a behavior of an RF capacitive device utilizing a mirror circuit; and providing feedback signals to an input of an operational amplifier via a feedback node coupled with the mirror circuit. Other embodiments are disclosed. | 12-11-2014 |
20140364070 | COMMUNICATION DEVICE - Electrodes are formed of a nonmagnetic metal in high-frequency electronic components that conduct high frequency electric current having a frequency included in any of a first frequency band for transmitting and a third frequency band for receiving, both assigned to a first transmitting/receiving unit for data communication, and a second frequency band for transmitting and a fourth frequency band for receiving, both assigned to a second transmitting/receiving unit for telephone communication. The high-frequency electronic components also restrict the frequency of the conducted electric current. | 12-11-2014 |
20140370824 | METHODS AND APPARATUS FOR ANTENNA TUNING - Systems and techniques for management of an antenna tuning frequency range. Frequency coverage needed for an antenna used in a portable communications device in a wireless communication network is determined based on communication protocols being used, with an active tuner being connected to a passively tuned antenna when a different frequency range is called for and with the active tuner being effectively isolated when only the range provided by the passively tuned antenna is needed to reduce the risk of RF mixing or intermodulation. | 12-18-2014 |
20140370825 | MULTIBAND ANTENNA APPARATUS - Disclosed is a multiband antenna apparatus. According to one embodiment of the present invention, a multiband antenna apparatus includes: an antenna radiator connected to each of a feeder pad and a ground pad on a non-ground surface of a mainboard of a wireless communication device and including a first radiator for transmitting and receiving a first frequency band and a second radiator for transmitting and receiving a second frequency band; a frequency adjusting element formed on the non-grounded surface and interconnecting the ground pad and the ground of the mainboard; and a switch unit that is formed on the non-ground surface and electrically disconnects or opens the ground pad and the ground of the mainboard in accordance with an input switching control signal. The resonant frequency of the antenna radiator shifts by the switching operation of the switching unit. | 12-18-2014 |
20140378074 | QUAD-BAND TUNABLE DIVERSITY ANTENNA FOR GLOBAL APPLICATIONS - An electronic device includes a main antenna and a diversity antenna. The diversity antenna includes a first portion configured to enable a transceiver to receive a signal in a first low-band frequency of four frequency bands. A second portion enables the transceiver to receive a signal in first and second high-band frequencies. A third portion is RF coupled to the first portion when the third portion is connected to ground. The third portion tunes the first portion such that the transceiver receives a signal in a second low-band frequency. A switch is connected between the third portion and the ground. When the switch is open, the first portion enables the transceiver to receive the signal in the first low-band frequency. When the switch is closed, the third portion tunes the first portion to enable the transceiver to receive the signal in the second low-band frequency. | 12-25-2014 |
20140378075 | MULTI-FREQUENCY RANGE PROCESSING FOR RF FRONT END - Techniques for supporting multi-frequency range signal processing for a wireless device. In an aspect, a first antenna is provided to support first and third frequency ranges. A second antenna is separately provided to support two separate ranges that are each intermediate in frequency between the first and third frequency ranges. In an aspect, the two separate ranges may correspond to, e.g., a GPS range and a 1500-MHz band. To separate the two ranges of the second antenna, one or more low-pass and/or band-pass filters may be provided. In other aspects, a third antenna may be added to support a fourth frequency range higher than the third frequency range. Other frequency range combinations, dual antenna aspects, and carrier aggregation features are further disclosed herein. | 12-25-2014 |
20140378076 | METHOD AND APPARATUS FOR MANAGING INTERFERENCE IN A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a matching network including a tunable reactance circuit configured to be coupled to at least one of a transmitter portion and a receiver portion of a communication device, where the tunable reactance circuit is adjustable to a plurality of tuning states, and where the determination of a tuning state is based on whether detected signal measurements are determined to be invalid and is based on information from at least one of an open-loop or closed-loop feedback configuration of the tunable reactance circuit. Additional embodiments are disclosed. | 12-25-2014 |
20150024695 | TRANSCEIVERS WITH A TRANSFORMER SUPPORTING MULTIBAND OPERATION - Several multiband transceivers are disclosed. An exemplified multiband transceiver supporting different bands has a transformer, an inbound switch circuit, and an outbound switch circuit. The transformer has input ports on a primary side, and output ports on a secondary side. The input ports are direct-current isolated from and magnetically coupled to the output ports. The inbound switch circuit is configured to connect one of the input ports with an RF signal source for signal transmission. The outbound switch circuit is configured to connect one of the output ports with a RF output load. Optionally, an input tunable capacitor is configured to shunt with the effective inductance of one of the input ports and form a LC tank for band selection. | 01-22-2015 |
20150024696 | MOBILE TERMINAL FOR AUTOMATICALLY ADJUSTING ANTENNA MATCHING AND CONTROL METHOD THEREFOR - A mobile terminal for automatically adjusting antenna matching, and a control method thereof, are provided. By determining whether an RSSI value is less than a preset value, a mobile terminal, and a control method thereof, may send an SPI control signal according to a judgment result, and an SPI control interface may transmits the SPI control signal to an antenna matching module to control a magnitude of variable capacitance and variable inductance. Thereby antenna matching impedance may be adjusted to increase an RSSI value. A mobile terminal, and a control method thereof, may include a good communication signal and high call quality. | 01-22-2015 |
20150031313 | SINGLE DIFFERENTIAL-INDUCTOR VCO WITH IMPLICIT COMMON-MODE RESONANCE - A circuit for a single differential-inductor oscillator with common-mode resonance may include a tank circuit formed by coupling a first inductor with a pair of first capacitors; a cross-coupled transistor pair coupled to the tank circuit; and one or more second capacitors coupled to the tank circuit and the cross-coupled transistors. The single differential-inductor oscillator may be configured such that a common mode (CM) resonance frequency (F | 01-29-2015 |
20150031314 | METHOD AND APPARATUS FOR MANAGING INTERFERENCE IN A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a matching network including a tunable reactance circuit configured to be coupled to at least one of a transmitter portion and a receiver portion of a communication device, wherein the tunable reactance circuit is adjustable to a plurality of tuning states, and wherein the determination of a tuning state is based on parameters associated with a detected interference. Additional embodiments are disclosed. | 01-29-2015 |
20150038093 | Tunable Radio Frequency Low Noise Amplifier - An apparatus comprising an amplifier comprising an input, a capacitor having a capacitor first side and a capacitor second side, wherein the capacitor first side is coupled to the input, a switch having a switch first side and a switch second side, wherein the switch first side is coupled to the capacitor second side, and a transistor having a transistor gate, and a transistor source, wherein the transistor gate is coupled to the input and the capacitor first side, wherein the transistor source is coupled to the switch second side and wherein the switch is positioned directly between the capacitor second side and the transistor source. | 02-05-2015 |
20150038094 | VSWR DETECTOR FOR A TUNABLE FILTER STRUCTURE - Embodiments of radio frequency (RF) filter front-end circuitry are disclosed that include a tunable RF filter structure having weakly coupled resonators and a Voltage Standing Wave Ratio (VSWR) control circuit. The VSWR control circuit is configured to detect a VSWR at a terminal of the tunable RF filter structure and to dynamically tune the tunable RF filter structure based on the VSWR. In this manner, the VSWR control circuit tunes the tunable RF filter structure to improve performance of tunable RF filter structure over variations in the VSWR. | 02-05-2015 |
20150044977 | METHOD AND WIRELESS COMMUNICATION DEVICE FOR USING AN ANTENNA AS A SENSOR DEVICE IN GUIDING SELECTION OF OPTIMIZED TUNING NETWORKS - A method and system performs antenna tuning using detected changes in antenna self-capacitance in a wireless communication device. A modem detects changes in antenna self-capacitance by utilizing multiple antenna elements. The modem determines a current antenna loading condition using the detected changes in antenna self-capacitance. The modem determines appropriate tuning states for each antenna matching and tuning circuit (AMTC) associated with a respective antenna element. In order to determine the appropriate tuning states, the modem utilizes pre-established antenna self-capacitance information which is mapped to antenna tuning states. The antenna tuning states which are respectively mapped to pre-established antenna self-capacitance are empirically pre-determined by correlating antenna self-capacitance changes to antenna impedance changes. The modem is thus able to change the tuning states of multiple tunable matching circuits and perform antenna tuning using (a) detected real-time changes in antenna self-capacitance and (b) pre-established mappings of antenna self-capacitance and antenna tuning states. | 02-12-2015 |
20150050898 | AGGREGATION OF BANDWIDTH FROM MULTIPLE WIRELESS DEVICES - Technologies are generally described for an aggregation of bandwidth from multiple wireless devices. In some examples, a source device may communicate with a destination device at a first bandwidth. The source device may divide data into a first piece and a second piece. The source device may transmit the first piece to a first wireless device and the second piece to a second wireless device over a first network. The first wireless device and second wireless device may communicate with the destination device at a second bandwidth and a third bandwidth respectively. The first bandwidth may be less than an aggregation of the second bandwidth and the third bandwidth. The first wireless device may transmit the first piece over a second network, different from the first network, to the destination device. The second wireless device may transmit the second piece over a third network, different from the first network, to the destination device. | 02-19-2015 |
20150050899 | WIRELESS TRANSCEIVER WITH CONFIGURATION CONTROL AND METHODS FOR USE THEREWITH - A wireless transceiver includes at least one RF transceiver section that generates an outbound RF signal based on outbound data and that generates inbound data based on an inbound RF signal. A configuration controller configures the wireless transceiver, by configuring the wireless transceiver to identify a plurality of communication paths to a remote station, the plurality of communication paths including at least one indirect communication path through at least one intermediate station; configuring the wireless transceiver to communicate with the remote station based on a first path of the plurality of communication paths; and configuring the wireless transceiver to communicate with the remote station based on a second path of the plurality of communication paths. | 02-19-2015 |
20150065062 | RADIO-ELECTRIC INHIBITOR SYSTEM FOR A COMMUNICATION DEVICE - A radio-electric inhibitor device having an adjustable gain chain of radio frequency device; a frequency mixing circuit connected to the an adjustable gain chain; a second adjustable gain chain of radio frequency device; and a central control unit independently connected to each one of the adjustable gain chain of radio frequency device, the frequency mixing circuit connected to the an adjustable gain chain; and the second adjustable gain chain of radio frequency device. | 03-05-2015 |
20150065063 | STANDING WAVE RATIO METER FOR INTEGRATED ANTENNA TUNER - The invention provides circuitry integrated into a silicon chip that measures aspects of an RF signal on a transmission line in order to provide data that is ultimately used by an antenna tuner circuit to substantially match the impedance of the antenna with that of the transmission line providing the RF frequency to be transmitted. | 03-05-2015 |
20150072626 | WIRELESS CIRCUIT, AND METHOD FOR CONTROLLING WIRELESS CIRCUIT - According to a wireless circuit, in a case where a control section carries out switching between use frequency bands of an antenna, the control section sets, in accordance with a first set value which has been adjusted by an impedance variable matching section before the switching, a set value of an impedance variable matching section after the switching. This prevents communication, which is carried out by the wireless circuit including the variable matching section, from being cut off when the use frequency band are switched. | 03-12-2015 |
20150072627 | METHOD AND APPARATUS TO MITIGATE INTERFERENCE BETWEEN HARDWARE CIRCUITRY AND WIRELESS CIRCUITRY IN A WIRELESS COMMUNICATION DEVICE - Methods and apparatus to mitigate radio frequency interference generated by hardware circuitry and received by wireless circuitry of a wireless communication device are described. A processor obtains a set of wireless performance metrics for signals received by the wireless circuitry. The processor determines a preferred operating mode for the hardware circuitry based on the set of wireless performance metrics and provides an indication of the preferred operating mode to the hardware circuitry. The hardware circuitry is configured for operation in accordance with the preferred operating mode. The processor and/or a second processor provide an indication to the wireless circuitry when the hardware circuitry initiates and terminates an operation that can cause radio frequency interference into the wireless circuitry. The wireless circuitry is configured during a time period that the hardware circuitry is operational to mitigate effects of radio frequency interference generated by the hardware circuitry. | 03-12-2015 |
20150072628 | Portable Wireless Mesh Device Having Improved Antenna System - A wireless mesh network comprising a plurality of mobile mesh devices coupled as nodes in a mesh network topology is provided herein. Generally speaking, each mobile mesh device may be a portable, self-contained unit, which does not require network or power wiring to communicate network traffic between the nodes. According to one embodiment, the mobile mesh device may include a plurality of dipole antennas, which are enclosed within the mobile mesh device and configured to forward network traffic. At least one of the dipole antennas may be a frequency adjustable end-fed dipole antenna comprising a channel selection pin, which can be adjusted up or down along the dipole axis to change a resonant frequency of the dipole antenna. A method for setting or adjusting a resonant frequency of a frequency adjustable end-fed dipole antenna is also provided herein. | 03-12-2015 |
20150079913 | SEMICONDUCTOR DEVICE AND FABRICATION METHOD - The present disclosure relates to impedance tuning of transmitting and receiving antennas. | 03-19-2015 |
20150087245 | RECEIVER FOR CARRIER AGGREGATION - A single hybrid receiver is provided for processing both single carrier and carrier aggregated (CA) communications signals where carriers are split into independent receive paths without any additional external components. The receiver receives all contiguous and non-contiguous intra-band CA and inter-band CA signals allowing for improved rejection and balanced rejection of jamming signals on either side of the two carrier signals. | 03-26-2015 |
20150087246 | TUNABLE RF DIPLEXER - A first RF diplexer, which includes a first RF highpass with tunable notch filter and a first RF lowpass with tunable notch filter, is disclosed. The first RF diplexer has a first main port, a second main port, and a first common port. The first RF highpass with tunable notch filter is coupled between the first main port and the first common port. The first RF lowpass with tunable notch filter is coupled between the second main port and the first common port. The first RF highpass with tunable notch filter has a first highpass notch frequency, which is tunable. The first RF lowpass with tunable notch filter has a first lowpass notch frequency, which is tunable. | 03-26-2015 |
20150094002 | System For Constraining An Operating Parameter Of An EHF Communication Chip - An EHF communication system including an EHF communication chip. The EHF communication chip may include an EHF communication circuit having at least one controllable parameter-based module having a testable and controllable operating parameter The EHF communication chip may further include a test and trim circuit coupled to the EHF communication circuit, where the test and trim circuit includes a logic circuit having one or more memory elements, where the logic circuit is coupled to the controllable parameter-based module. | 04-02-2015 |
20150099474 | Electronic Device With Antennas Isolated Using Phase Shifter - An electronic device may be provided with a primary antenna that is used for transmitting and receiving signals and a secondary antenna that is used for receiving signals. The primary and secondary antennas may be used together in a diversity arrangement when receiving signals. The electronic device may have a transceiver. A phase shifter may be interposed between the transceiver and the secondary antenna. Control circuitry may select a communications band of interest for transmitting signals with the primary antenna. The control circuitry can adjust the phase shifter in real time based on which communications band of interest has been selected for transmission with the primary antenna. The phase shifter may impose a phase shift on signals carried between the secondary antenna and the transceiver that ensures that primary antenna efficiency degradation associated with the presence of the secondary antenna in the vicinity of the primary antenna is avoided. | 04-09-2015 |
20150105032 | DYNAMIC BIAS TO IMPROVE SWITCH LINEARITY - Exemplary embodiments are related to a dynamic gate bias for an electronic switch. A device may include a radio-frequency (RF) switch configured to receive an RF signal. The device may further include a bias generator configured to convey a bias signal based on a power level of the RF signal to the RF switch. | 04-16-2015 |
20150118975 | DEVICE FOR IMPROVING THE STRAY ISOLATION BETWEEN THE ANTENNAS IN THE BILATERAL ANTENNA AND THE METHOD THEREOF - The present invention relates to the communication technology field, more specifically, to a scheme of bilateral antenna. A device for improving the stray isolation between the antennas in the bilateral antenna comprises a plurality of communication modules having an antenna and a power amplification module; at least one of the communication modules further comprises a tuning module. The power amplification module is connected to the antenna directly or through the tuning module. The stray isolation between the communication module and other communication module is improved by adjusting the communication modules comprising the tuning module. This invention increases the stray isolation between the communication modules in different frequency bands, specifically, when a long interval exits between working frequency bands. Consequently, the radiance performance of the bilateral antenna of the mobile termination is satisfied, and the capacity of resisting disturbance between the systems is enhanced. | 04-30-2015 |
20150126135 | Methods And Systems For Calibrating LTE Antenna Systems - Antenna array calibration systems and related methods include or utilize a plurality of signal splitter/combiner networks. Each of the signal splitter/combiner networks has a calibration signal sampling point in electrical communication with a signal input point, and signal output points. Each calibration signal sampling point may be capacitively coupled to a respective calibration source input of a calibration network. The signal splitter/combiner networks may be formed as phase-shifting networks. | 05-07-2015 |
20150126136 | LOW-NOISE AMPLIFIER MATCHING - Exemplary embodiments are related to a low-noise amplifier (LNA) matching device. A device may include an antenna for receiving a wireless signal and at least one LNA. The device may further include an LNA matching device coupled between the antenna and the at least one LNA and configured to receive one or more control signals to provide an optimal LNA match setting for each band of a plurality of frequency bands. | 05-07-2015 |
20150133064 | APPARATUS AND METHOD FOR HIGH LINEARITY TUNING - A system that incorporates teachings of the subject disclosure may include, for example, a plurality of variable capacitors, a first set of resistors for applying a bias voltage to each variable capacitor of the plurality of capacitors, and a second set of resistors for providing a DC ground to each variable capacitor of the plurality of capacitors. The system can include one or more of multiple bias points, anti-parallel diodes, a choke inductor or a ground inductor. Other embodiments are disclosed. | 05-14-2015 |
20150133065 | RF SWITCH - A RF switch may include: a common port coupled to an antenna to transmit and receive first and second high frequency signals; a transmitting switching unit coupled between a transmitting port transferring the first high frequency signal and the common port and including a plurality of switching devices coupled to each other in series; and a receiving switching unit coupled between a receiving port transferring the second high frequency signal and the common port and including a first switching unit including a first switching device. The first switching unit may further include a second switching device having a first terminal coupled to a first terminal of the first switching device and a second terminal coupled to a control terminal of the first switching device. | 05-14-2015 |
20150147980 | MULTIBAND ANTENNA ARRANGEMENT - An antenna arrangement includes a switch having an open state and a closed state, a first antenna that operates as a first active driven element in a first frequency band in response to the switch being in the open state, and a second antenna that operates as a second active driven element in a first frequency band in response to the switch being in the open state. The closed state configures the first antenna and the second antenna to operate in a second frequency band different from the first frequency band by operatively coupling a first impedance between the first antenna and a radio frequency ground, and by operatively coupling a second impedance between the second antenna and the radio frequency ground. The first antenna functions as a parasitic element in the second frequency band and the second antenna functions as an active driven element in the second frequency band. | 05-28-2015 |
20150303971 | SYSTEMS, DEVICES AND METHODS RELATED TO IMPROVED RADIO-FREQUENCY MODULES - Systems, devices and methods related to improved radio-frequency (RF) modules. In some embodiments, an RF module can include a packaging substrate, a power amplifier (PA) assembly implemented on a first die mounted on the packaging substrate, and a controller circuit implemented on a second die mounted on the first die. The controller circuit can be configured to provide at least some control of the PA assembly. The RF module can further include one or more output matching network (OMN) devices mounted on the packaging substrate and configured to provide output matching functionality for the PA assembly. The RF module can further include a band selection switch device mounted on each OMN device. | 10-22-2015 |
20150303973 | APPARATUS AND METHODS FOR DIVERSITY MODULES - Apparatus and methods for diversity modules are provided herein. In certain configurations, a diversity module includes a first antenna-side multi-throw switch, a second antenna-side multi-throw switch, a first transmitter-side multi-throw switch, a second transmitter-side multi-throw switch, a low band (LB) processing circuit, a mid band (MB) processing circuit, and a high band (HB) processing circuit. The LB processing circuit is electrically coupled in a first signal path between the first antenna-side multi-throw switch and the first transceiver-side multi-throw switch, the MB processing circuit is electrically coupled in a second signal path between the second transceiver-side multi-throw switch and the second transceiver-side multi-throw switch, and the HB processing circuit is electrically coupled in a third signal path between the second antenna-side multi-throw switch and the first transmitter-side multi-throw switch. | 10-22-2015 |
20150304464 | SLEEVE WITH ELECTRONIC EXTENSIONS FOR A CELL PHONE - A passively re-radiating cell phone sleeve assembly capable of receiving a nested cell phone provides signal boosting capabilities. Signal boosting is enabled by use of an additional antenna, a pass-through repeater, dual antenna isolation capability and other features. | 10-22-2015 |
20150311943 | SYSTEMS AND METHODS FOR DYNAMIC TRANSCEIVER PATH ADAPTATION BASED ON MEASUREMENTS FROM MULTIPLE SENSORS - In accordance with embodiments of the present disclosure, a wireless network interface may include a transmit/receive path comprising an antenna for transmitting and receiving wireless transmissions and a baseband controller communicatively coupled to the transmit/receive path and configured to receive fused sensor information indicative of environmental conditions detected by a plurality of sensors and, based on the fused sensor information, tune one or more parameters of the transmit/receive path. | 10-29-2015 |
20150312058 | APPARATUS AND METHOD FOR ANTENNA MATCHING - A method and apparatus are for performing antenna matching and include determining a cable connection state of a cable connector, generating a cable detection signal that indicates the cable connection state, and modifying impedance transform of a tunable matching circuit in response to the cable detection signal. The cable detection signal indicates one of a presence and an absence of a cable connector. The tunable matching circuit couples a transceiver and an antenna. The tunable matching circuit couples the selected impedance transform between the transceiver and the antenna. The apparatus is a radio communication device that includes a transceiver, a processing system, an antenna, a tunable matching circuit, an input/output section, a cable connector, and a sensor. | 10-29-2015 |
20150333779 | SYSTEMS AND METHODS FOR ENHANCING PROBABILITY OF INTERNAL MEASUREMENTS IN CROWDED ENVIRONMENTS - A communication system having self or internal calibration is disclosed. The system includes an antenna tuner, a mismatch component, a receiver, and a strength indicator. The antenna tuner is configured to mismatch an antenna according to a mismatch code. The mismatch code includes or alters antenna characteristics of the antenna. The mismatch component is configured to provide the mismatch code to the antenna tuner. The strength indicator is configured to measure a strength of the received signal. | 11-19-2015 |
20150341073 | Electronic Device Having Sensors and Antenna Monitor For Controlling Wireless Operation - An electronic device may be provided with wireless circuitry. Control circuitry may be used to adjust the wireless circuitry. The wireless circuitry may include an antenna that is tuned using tunable components. The control circuitry may gather information on the current operating mode of the. electronic device, sensor data from a proximity sensor, accelerometer, microphone, and other sensors, antenna impedance information for the antenna, and information on the use of connectors in the electronic device. Based on this gathered data, the control circuitry can adjust the tunable components to compensate for antenna detuning due to loading from nearby external objects, may adjust transmit power levels, and may make other wireless circuit adjustments. | 11-26-2015 |
20150341087 | MULTI-USE WIRELESS POWER AND DATA SYSTEM - A wireless device is disclosed that includes an antenna system comprising at least one inductive element and two or more capacitive elements. A switching component configured to change a circuit configuration of the capacitive elements. A controller configured to transmit a signal using the antenna system and to receive a response from a first device, to determine a communications protocol associated with the first device and to change a configuration of the antenna system in response to the detected communications protocol by actuating the switching component. | 11-26-2015 |
20150349840 | Method and Apparatus for Improving Performance Based on Filter Characteristics - Methods and apparatus for improving operational and/or cost performance based on filter characteristics. Existing schemes for measuring filter performance are based on a worst case filter performance across a range of frequencies and temperature. Filter performance can be more accurately characterized over one or more frequency ranges. In one exemplary embodiment the frequency is characterized according to a functional (e.g., linear-average) metric. By providing more accurate representation of the reception/transmission filter performance, both network and device optimizations can aggressively manage available power and handle smaller (tighter) margins. | 12-03-2015 |
20150351078 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD AND PROGRAM - A wireless communication apparatus is provided that performs wireless communication using a specified wireless channel and forms part of an ad hoc wireless network. The device includes a recording portion that records country ID information and recording-time information in to a storage medium, where the recording-time information indicates the time at which the country ID information was recorded in to the storage medium, a time determination portion that uses the recording-time information to determine whether a predetermined time period has elapsed from the time at which the country ID information was recorded, and a channel setting portion that, when the predetermined time period has not elapsed from the time at which the country ID information was recorded in the storage medium, sets a wireless channel to a frequency channel that can be used in the country indicated by the country ID information recorded in the storage medium. | 12-03-2015 |
20150357990 | MOBILE TERMINAL - A mobile terminal according to the present invention can compensate for impedance mismatch of a tuner due to a user's grip, thereby improving communication quality. | 12-10-2015 |
20150372396 | Antenna Arrangement for Multiple Frequency Band Operation - The present disclosure relates to an antenna arrangement ( | 12-24-2015 |
20150372656 | Electronic Device With Adjustable Wireless Circuitry - An electronic device may be provided with wireless circuitry. Control circuitry may be used to adjust the wireless circuitry. The wireless circuitry may include antennas that are tuned, adjustable impedance matching circuitry, antenna port selection circuitry, and adjustable transceiver circuitry. Wireless circuit adjustments may be made by ascertaining a current usage scenario for the electronic device based on sensor data, information from cellular base station equipment or other external equipment, signal-to-noise ratio information or other signal information, antenna impedance measurements, and other information about the operation of the electronic device. | 12-24-2015 |
20150372702 | FILTERS FOR A FREQUENCY BAND - An apparatus includes a first filter tuned to a sub-band of a frequency band and a second filter tuned to the frequency band. The first filter is configured to be coupled to a receiver based on a first mode. The second filter is configured to be coupled to the receiver based on a second mode. | 12-24-2015 |
20150381212 | APPARATUS FOR TUNING VOLTAGE STANDING WAVE RATIO OF BASE STATION SYSTEM IN WIRELESS COMMUNICATION NETWORK - Provided is an apparatus for tuning the voltage standing wave ratio (VSWR) of a base station system in a wireless communication network, the apparatus comprising: a VSWR changing unit for changing the characteristics of the VSWR of an antenna by changing electrical signal transmission characteristics of an internal power feedline by means of an external operation, or by changing the characteristics for transceiving a radiating member; a driving unit for driving the VSWR changing unit in accordance with a control signal; a VSWR detection unit for detecting the corresponding VSWR for the installed antenna and generating a detection signal on the basis thereof; and a control unit for controlling the actions of the VSWR changing unit for changing the VSWR characteristics by controlling the operation of the driving unit, if a VSWR characteristic is determined to be in an abnormal state on the basis of the detection signal generated by the VSWR detection unit. | 12-31-2015 |
20150381230 | CONTROL INTERFACE FOR A COMMUNICATION DEVICE - A portable radio ( | 12-31-2015 |
20160013830 | COMMUNICATION SYSTEM, TUNER, AND SETTING METHOD | 01-14-2016 |
20160020812 | Wireless Transmission Through Faraday Cage Enclosure - A solution for communicating between devices located within and outside of an effective Faraday cage volume is provided. An enclosure structure forming the effective Faraday cage volume can be used as an antenna for a transceiver of a wireless device located within the Faraday cage volume. An antenna connector of a transceiver of the wireless device can be physically connected to the conductive material of the enclosure structure using any solution. The enclosure structure can transmit wireless signals generated by the wireless device external of the enclosure structure and/or transmit external wireless signals to the transceiver of the wireless device for processing by the device. | 01-21-2016 |
20160020814 | Method for Simplified Closed-Loop Antenna Tuning - A method of closed-loop antenna tuning (CLAT) search strategy based on maximum Relative Transducer Gain (RTG) is proposed. A search region that account for TX input mismatch and forward voltage gain is pre-computed. The search region that is independent of antenna load can be pre-computed to reduce the computation complexity. The Maximum RTG is searched by estimating antenna S-parameters corresponding to a good load match. The search is conducted between the peak forward voltage gain and the best load match. Global optimal with reasonable RTG can be found with limited number of iterations. The transmitter search region can further be constrained by the receiver path mismatching. | 01-21-2016 |
20160020862 | IMPEDANCE TUNING FOR A POWER AMPLIFIER LOAD TUNER, A RECEIVE TUNER, AND AN ANTENNA TUNER - An apparatus includes a transmit path that includes a power amplifier load tuner having an adjustable impedance. The apparatus also includes a receive path that includes a receive tuner having an adjustable impedance. The apparatus further includes an antenna tuner having an adjustable impedance. The antenna tuner is coupled to the transmit path and to the receive path. | 01-21-2016 |
20160036320 | APPARATUS AND METHODS FOR CHARGE PUMPS FOR RADIO FREQUENCY SYSTEMS - Apparatus and methods for charge pumps are disclosed herein. In certain configurations, a charge pump includes a mode control circuit, a clock generation circuit that generates a clock signal, two or more switched capacitors, and a capacitor charging circuit used to charge the switched capacitors in response to transitions of the clock signal. The mode control circuit can be used to operate the charge pump in one of a plurality of modes associated with different clock signal oscillation frequencies and with different power supply voltages of the capacitor charging circuit. For example, in certain configurations, the selected mode can control an oscillation frequency of clock signal and a voltage level of a power supply voltage used by the capacitor charging circuit when charging the switched capacitors. | 02-04-2016 |
20160036474 | Radio communication using multiple antennas and localization variables - The invention relates to a method for radio communication using multiple antennas and localization variables, and to an apparatus for radio communication using multiple antennas and localization variables. An apparatus for radio communication of the invention comprises: 4 antennas, the 4 antennas forming an antenna array; a radio device; a sensor unit estimating a plurality of localization variables; an antenna tuning apparatus having 4 antenna ports, each of the antenna ports being coupled to one of the antennas through a feeder, the antenna tuning apparatus having 4 radio ports, each of the radio ports being coupled to the radio device through an interconnection; and a tuning control unit, the tuning control unit receiving a tuning instruction generated automatically within the apparatus for radio communication, the tuning control unit delivering a plurality of tuning control signals to the antenna tuning apparatus. | 02-04-2016 |
20160036482 | APPARATUS AND METHOD FOR ANTENNA TUNING | 02-04-2016 |
20160036486 | PHASE ROTATOR FOR COMPENSATING TRANSCEIVER IMPAIRMENTS - A phase rotator corrects the IQ imbalance in a wireless transceiver. The phase rotator is a part of a compensation system that detects and separates reception impairment images from transmission impairment images. The disclosed phase rotator introduces a phase shift between the transmission channel and the reception channel without perturbing the phase mismatch and the gain mismatch in the reception path. The phase rotator includes a first local oscillation (LO) circuit that generates a first LO signal at a first carrier frequency and a second LO circuit that generates a second LO signal at a second carrier frequency that deviates from the first carrier frequency for a phase rotation period. The phase rotation period is sufficiently long such that the frequency deviation can introduce a prescribed phase shift between the first LO signal and the second LO signal. | 02-04-2016 |
20160043751 | Radio communication using tunable antennas and an antenna tuning apparatus - The invention relates to a method for radio communication using one or more tunable antennas and an antenna tuning apparatus, and to an apparatus for radio communication using one or more tunable antennas and an antenna tuning apparatus. An apparatus for radio communication of the invention comprises: 4 antennas, each of the antennas being a tunable passive antenna; a radio device; an antenna tuning apparatus having 4 antenna ports, each of the antenna ports being coupled to one of the antennas through a feeder, the antenna tuning apparatus having 4 radio ports, each of the radio ports being coupled to the radio device through an interconnection; and a tuning control unit, the tuning control unit receiving a tuning instruction generated automatically within the apparatus for radio communication, the tuning control unit delivering a plurality of tuning control signals to the antenna tuning apparatus and to the tunable passive antennas. | 02-11-2016 |
20160050091 | METHOD AND APPARATUS FOR AN ADAPTIVE FILTER ARCHITECTURE - A system that incorporates teachings of the subject disclosure may include, for example, a method for scanning a radio frequency spectrum for an available frequency band, selecting an available frequency band in the radio frequency spectrum even if the available frequency band is affected by radio frequency interference, measuring a signal strength in portions of the available frequency band, correlating the signal strength of each portion to generate a correlation factor, detecting radio frequency interference in the available frequency band according to the correlation factor, and generating tuning coefficient data to cause the filter apparatus to substantially suppress the radio frequency interference in the available frequency band. Other embodiments are disclosed. | 02-18-2016 |
20160064815 | ANTENNA EQUIPPED WITH HORIZONTALLY ARRANGED RADIATING ELEMENTS - The present invention relates to a base station antenna for mobile communication, the antenna, equipped with horizontally arranged radiating elements and connected to a base station system, comprising: a reflective plate disposed in the interior of a multiple-input multiple-output antenna; a plurality of antennas disposed on the planar surface of the reflective plate; and a moving unit for moving the plurality of antennas vertically within the range of the planar surface of the reflective plate. | 03-03-2016 |
20160071811 | VOLTAGE COMPENSATED SWITCH STACK - A radio frequency (RF) switch arrangement that improves the voltage handling capacity of a stack of switching elements (e.g., field-effect transistors (FETs)). The RF switch arrangement can include a ground plane and a stack arranged in relation to the ground plane, the stack including a plurality of switching elements coupled in series with one another. The RF switch arrangement can also include a plurality of capacitive elements, each of the plurality of capacitive elements providing a capacitive path across respective terminals of a corresponding one of the plurality of switching elements | 03-10-2016 |
20160080025 | INPUT DEVICE SWITCHING AN OPERATING CHANNEL OF A RADIO TRANSCEIVER BETWEEN FIRST AND SECOND COMPUTER SYSTEMS - An input device for switchable use between first and second computer systems. A controller of the input device can execute switching logic to direct a radio transceiver of the input device to switch an operating channel of the radio transceiver to a first channel monitored by the first computer system in response to a first event, and thereby, the input device can be utilized to insert data into the first computer system. The controller can execute switching logic to direct the radio transceiver to switch the operating channel to a second channel monitored by the second computer system in response to a second event, and thereby, the input device can be utilized to insert data into the second computer system. | 03-17-2016 |
20160080026 | METHOD AND APPARATUS FOR RADIO ANTENNA FREQUENCY TUNING - A system that incorporates teachings of the present disclosure may include, for example, a non-transitory computer-readable storage medium, which can include computer instructions to determine a subset of use cases from a group of use cases stored in a memory of a communication device, and to determine a target use case from among the subset of use cases based on an operational parameter associated with a transceiver of the communication device. Additional embodiments are disclosed. | 03-17-2016 |
20160105210 | WIDE BAND ANTENNA SYSTEMS - A system that incorporates teachings of the subject disclosure may include, for example, a communication device including a matching network for impedance tuning and pairs of antennas that can be utilized as primary and diversity antennas, respectively, and can provide high radiation efficiency. An RF switch can be utilized for re-configuring the primary and diversity antennas. Other embodiments are disclosed. | 04-14-2016 |
20160105212 | HIGH RADIATION EFFICIENCY ANTENNA SYSTEMS - A system that incorporates teachings of the subject disclosure may include, for example, a communication device including a matching network for impedance tuning and pairs of antennas that can be utilized as primary and diversity antennas, respectively, and can provide high radiation efficiency. An RF switch can be utilized for re-configuring the primary and diversity antennas. Other embodiments are disclosed. | 04-14-2016 |
20160112070 | ANTENNA MODULE AND CONTROL METHOD THEREOF - An antenna module may include a printed circuit board including a main ground unit disposed on one surface thereof, a first ground array unit connected to the main ground unit through a first switching unit, and a second ground array unit connected to the main ground unit through a second switching unit, and an antenna pattern unit connected to the printed circuit board and transmitting and receiving at least one frequency band signal, wherein the printed circuit board further includes a switching controlling unit controlling switching operations of the first and second switching units according to RSSI of the signal provided to the antenna pattern unit, and the first ground array unit is disposed on one surface of the printed circuit board and the second ground array unit is disposed on the other surface opposing one surface of the printed circuit board. | 04-21-2016 |
20160112219 | ANTENNA STRUCTURES AND ELECTRONICS DEVICE HAVING THE SAME - A near-field communication (NFC) device may include: an NFC circuitry configured to perform NFC; an antenna structure connected to the NFC circuitry; and/or a matching circuit configured to perform impedance matching between the NFC circuitry and the antenna structure. The antenna structure may include: an antenna segment configured to form a metal frame surrounding a periphery of a body including the NFC circuitry and the matching circuit; and/or a first slit formed between first and second ends of the antenna segment. The antenna segment may include a first feeding terminal and a second feeding terminal respectively formed at the first and second ends of the antenna segment. The first feeding terminal of the antenna segment may be connected to a first end of the matching circuit. The second feeding terminal of the antenna segment may be connected to a second end of the matching circuit. | 04-21-2016 |
20160118953 | TRANSFORMER OF THE BALANCED-UNBALANCED TYPE - A transformer of the balanced-unbalanced type includes a primary inductive circuit and a secondary inductive circuit housed inside an additional inductive winding connected in parallel to the terminals of the secondary circuit and inductively coupled with the primary circuit and the secondary circuit. | 04-28-2016 |
20160127004 | Fast Calibration - A computer implemented method of calibrating a device comprising the steps of: deriving an analytic expression for a variable to be optimised of the device in terms of at least one parameter of the device, transforming the analytic expression into polynomial form of the at least one parameter of the device, the polynomial form comprising N coefficients, capturing at least N samples of a value of the variable from the device under calibration, each sample being a result of a different independent pre-determined value of the at least one parameter, applying the captured variable values and the corresponding at least one parameter values to the polynomial form, obtaining optimal values of the at least one parameter from the applying step to calibrate the device. | 05-05-2016 |
20160134349 | Antenna Swapping Methods Including Comparing Performance Characteristics of First and Second Antennas, and Related Portable Electronic Devices - An antenna switching method includes tuning respective signals provided to first and second antennas in a portable electronic device to at least one frequency band. The method may also include connecting the first antenna to an uplink signal path that is for transmissions through the first and second antennas, and performing impedance matching for the first antenna. The method may further include comparing a real-time performance characteristic of the first antenna with a real-time performance characteristic of the second antenna. The method may additionally include, responsive to determining that the second antenna has a stronger real-time performance characteristic than the first antenna while the first antenna is connected to the uplink signal path, switching from the first antenna to the second antenna by connecting the second antenna to the uplink signal path and disconnecting the first antenna from the uplink signal path, and performing impedance matching for the second antenna. | 05-12-2016 |
20160164495 | AUTO-TUNABLE ANTENNA DEVICES - Auto-tunable antenna devices and methods of using the same are described herein. One method for tuning an antenna of a device includes comparing a reference phase of a reference signal to a return phase of a return signal of the antenna and sending a correction signal to a tunable circuit element of the antenna in response to the reference phase being out of phase with the return phase. | 06-09-2016 |
20160164566 | ELECTRONIC DEVICE AND ANTENNA MODULE CAPABLE OF ADJUSTING ANTENNA CHARACTERISTICS DYNAMICALLY - An electronic device capable of adjusting antenna characteristics dynamically includes a flexible antenna, a sensing unit, an antenna tuner, a storage unit and a processing unit. The sensing unit is configured to sense a curvature information of the flexible antenna. The storage unit is configured to store a look-up table, wherein the look-up table records a plurality of curvature ranges and a plurality of predetermined setting parameters, and each of the predetermined setting parameters is corresponding to one of the curvature ranges. The processing unit is configured to calculate a curvature level of the flexible antenna, compare the curvature level with the curvature ranges to select a setting parameter corresponding to the curvature level from the predetermined setting parameters, and set the antenna tuner according to the selected setting parameter. | 06-09-2016 |
20160172768 | METHOD FOR CLOSED-LOOP TUNER IN A RECEIVER ANTENNA | 06-16-2016 |
20160173166 | WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION METHOD, AND RECORDING MEDIUM | 06-16-2016 |
20160174197 | HYBRID ANTENNA FOR PORTABLE RADIO COMMUNICATION DEVICES | 06-16-2016 |
20160191231 | SYSTEMS AND METHODS FOR OPERATING RADIO TRANSCEIVERS - A phase lock loop monitor circuit is disclosed. The phase lock loop monitor circuit may include a coarse tuning circuit operable to generate a coarse tune failure indicator, a frequency target lock detector circuit operable to generate a frequency target failure indicator, a cycle slip monitor circuit operable to generate a cycle slip lock failure indicator, and an abort logic circuit communicatively coupled to the coarse tuning circuit, the frequency target lock detector circuit, and the cycle slip monitor circuit, the abort logic circuit operable to generate a radio operation abort indicator based at least on the coarse tune failure indicator, the frequency target failure indicator, or the cycle slip lock failure indicator. | 06-30-2016 |
20160204821 | Electronic Device With Impedance Measurement Circuitry | 07-14-2016 |
20160254084 | Tunable Inductor Arrangement, Transceiver, Method and Computer Program | 09-01-2016 |
20170237449 | SYSTEM FOR AIR-TO-AIR COMMUNICATIONS | 08-17-2017 |