21st week of 2012 patent applcation highlights part 34 |
Patent application number | Title | Published |
20120128012 | DIGITAL BROADCAST SYSTEM AND DATA PROCESSING METHOD - A digital broadcast system and a data processing method are disclosed. A data processing method of a digital broadcast transmission system includes delaying a reference time of a program clock reference (PCR) based on a size of mobile service data, when processing a broadcasting signal including main service data and the mobile service data, verifying a transport stream system target decoder (T-STD) model based on the PCR of the delayed reference time, and storing a packet of the main service data in an auxiliary buffer, when overflow of a buffer in the T-STD model is estimated as the verification result of the T-STD model. | 2012-05-24 |
20120128013 | Thulium and/or Holmium Doped Silicate Glasses for Two Micron Lasers - A laser glass fiber with a core of the fiber comprising a silicate glass host, one or more glass network modifiers, one or more glass network intermediators, and Thulium ions, Holmium ions, or a combination of Thulium ions and Holmium ions. The fiber emits laser light from 1.7 micron to 2.2 micron. | 2012-05-24 |
20120128014 | INTRA-CAVITY FREQUENCY DOUBLED MICROCHIP LASER OPERATING IN TEM00 TRANSVERSE MODE - A method for making a microchip laser includes preparing a laser-cavity chip assembly comprising a gain media, a first substantially flat surface, and a second substantially flat surface parallel to the first substantially flat surface. The method also includes forming a first reflective film on the first substantially flat surface to form a first cavity mirror, forming a second reflective film on the second substantially flat surface to form a second cavity mirror, and patterning at least one of the first reflective film or the second reflective film by removing at least a portion of the reflective film in the outer portion to form a center reflective portion in the one of the first reflective film or the second reflective film. The first cavity mirror and the second cavity mirror can suppress higher order transverse modes and produce a single TEM | 2012-05-24 |
20120128015 | Optical Pumping of Solid-State Laser Material Using Addressable Laser Array - An array of Surface Emitting Laser (SEL) elements can be used to efficiently pump a disk or rod of solid-state laser glass or crystal, or harmonic-generating crystal. Placing the laser array chip against or near the surface of this solid-state material provides very high and uniform optical power density without the need for lenses or fiber-optics to conduct the light from typical edge-emitting lasers, usually formed in a stack of bars. The lasers can operate in multi-mode output for highest output powers. Photolithography allows for an infinite variety of connection patterns of sub-groups of lasers within the array, allowing for spatial contouring of the optical pumping power across the face of the solid-state material. The solid-state material may be pumped either within (intra-cavity) or externally (extra-cavity) to the SEL laser array. | 2012-05-24 |
20120128016 | III-NITRIDE SEMICONDUCTOR LASER DIODE - Provided is a III-nitride semiconductor laser diode which is capable of lasing at a low threshold. A support base has a semipolar or nonpolar primary surface. The c-axis Cx of a III-nitride is inclined relative to the primary surface. An n-type cladding region and a p-type cladding region are provided above the primary surface of the support base. A core semiconductor region is provided between the n-type cladding region and the p-type cladding region. The core semiconductor region includes a first optical guide layer, an active layer, and a second optical guide layer. The active layer is provided between the first optical guide layer and the second optical guide layer. The thickness of the core semiconductor region is not less than 0.5 μm. This structure allows the confinement of light into the core semiconductor region without leakage of light into the support base, and therefore enables reduction in threshold current. | 2012-05-24 |
20120128017 | Electrical Devices Formed using Ternary Semiconducting Compounds - An electrical device includes a charge carrier transport layer formed using a ternary semiconducting compound having a stoichiometry of 1:1:1 and an element combination selected from the set of I-II-V, I-III-IV, II-II-IV, and I-I-VI; or having a stoichiometry of 3:1:2 and an element combination selected from the set of I-III-V; or having a stoichiometry of 2:1:1 and an element combination selected from the set of I-II-IV. In some embodiments, the charge carrier transport layer is used as the radiation absorption layer for a photovoltaic cell, or a light emitting layer of a light emitting device. Other devices, such as laser diode, a photodetection device, an optical modulator, a transparent electrode and a window layer, can also be formed using the ternary semiconducting compound as the charge carrier transport. | 2012-05-24 |
20120128018 | Interband Cascade Lasers - A gain medium and an interband cascade laser, having the gain medium are presented. The gain medium can have one or both of the following features: (1) the thicknesses of the one or more hole quantum wells in the hole injector region are reduced commensurate with the thickness of the active hole quantum well in the active quantum well region, so as to place the valence band maximum in the hole injector region at least about 100 meV lower than the valence band maximum in the active hole quantum well; and (2) the thickness of the last well of the electron injector region is between 85 and 110% of the thickness of the first active electron quantum well in the active gain region of the next stage of the medium. A laser incorporating a gain medium in accordance with the present invention can emit in the mid-IR range from about 2.5 to 8 μm at high temperatures with room-temperature continuous wave operation to wavelengths of at least 4.6 μm, threshold current density of about 400 A/cm | 2012-05-24 |
20120128019 | MONOLITHICALLY INTEGRATED MULTI-WAVELENGTH HIGH-CONTRAST GRATING VCSEL ARRAY - Multiple-wavelength VCSEL array apparatus and method having a high contrast grating (HCG) mirror which can be implemented on a single substrate in which only the dimensions of the HCG (e.g., duty cycle or the period) need be changed to alter the wavelength of a given VCSEL in response to changing the reflectivity phase of the HCG mirror. The HCG can be defined by any desired lithographic process. By using a broadband HCG mirror a large wavelength span over 100 nm is provided, such as covering the entire C-band. The HCG multi-wavelength VCSEL array enables single-transverse mode emission and polarization control and scalability with respect to wavelength. | 2012-05-24 |
20120128020 | VERTICAL CAVITY SURFACE EMITTING LASER WITH ACTIVE CARRIER CONFINEMENT - It is an object of the present invention to improve the confinement of the carriers within a VCSEL. As a general concept of the invention, it is proposed to integrate a phototransistor layer structure into the layer stack of the VCSEL. | 2012-05-24 |
20120128021 | LIGHT EMITTING DEVICE AND PACKAGE COMPONENT - A light emitting device includes a light emitting element mounting component, including a cubic package component formed of a silicon member covered with a insulating layer, and the package component including a bottom portion, a sidewall portion provided to stand upright on both ends of the bottom portion respectively, and a backwall portion provided to stand upright on an innermost part of the bottom portion, and the package component in which a cavity is provided in an inner side, and a light emitting element mounted on an inner side surface of the backwall portion of the package component, and including a light emitting surface on an upper end part, wherein a plurality of said light emitting element mounting components are stacked in a depth direction of the cavity to direct toward an identical direction. | 2012-05-24 |
20120128022 | CERAMIC GAS LASER HAVING AN INTEGRATED BEAM SHAPING WAVEGUIDE - A laser may comprise a ceramic body defining a chamber therein containing a laser gas. The ceramic body may include a plurality of parallel walls that partially define a first section of the chamber, the first section of the chamber defining a waveguide. The ceramic body may further include a plurality of oblique walls that partially define a second section of the chamber, the second section of the chamber being shaped to modify a transverse profile of a laser beam traveling through the second section of the chamber. The laser may further comprise a plurality of electrodes positioned outside the ceramic body and adjacent to the plurality of parallel walls such that only laser gas within the first section of the chamber is excited when an excitation signal is applied to the plurality of electrodes. | 2012-05-24 |
20120128023 | SWITCHABLE DUAL WAVELENGTH SOLID STATE LASER - The present invention relates to a switchable dual wavelength solid state laser with a solid state gain medium ( | 2012-05-24 |
20120128024 | TEMPERATURE MEASURING DEVICE - In order to improve precision in measuring a deep body temperature by suppressing a heat flux in a plane direction while achieving satisfactory contact between a temperature sensing element and a skin, there is provided a temperature measuring device ( | 2012-05-24 |
20120128025 | System and method for integrating sensors in thermostats - Provided according to one or more embodiments is a thermostat having a housing, the housing including a forward-facing surface, the thermostat comprising a passive infrared (PIR) motion sensor disposed inside the housing for sensing occupancy in the vicinity of the thermostat. The PIR motion sensor has a radiation receiving surface and is able to detect the lateral movement of an occupant in front of the forward-facing surface of the housing. The thermostat further comprises a grille member having one or more openings and included along the forward-facing surface of the housing, the grille member being placed over the radiation receiving surface of the PIR motion sensor. The grille member is configured and dimensioned to visually conceal and protect the PIR motion sensor disposed inside the housing, the visual concealment promoting a visually pleasing quality of the thermostat, while at the same time permitting the PIR motion sensor to effectively detect the lateral movement of the occupant. In one embodiment, the grille member openings are slit-like openings oriented along a substantially horizontal direction. | 2012-05-24 |
20120128026 | REAL-TIME ESTIMATION OF CELL CORE TEMPERATURE DURING PERIOD OF REST - Methods and systems for estimating the core temperature of at least one cell in a battery at the termination of a rest period. The method for estimating the core temperature of the cells in a battery includes measuring the surface temperature of the cells, obtaining the estimated core temperature of the cells, obtaining the time required for the surface temperature and the estimated core temperature of the cells to converge, and estimating the core temperature of the cells based on the measured surface temperatures, the obtained estimated core temperature, and the obtained time. The system for estimating the core temperature of the cells in a battery includes at least one sensor configured to receive temperature information and a control system in signal communication with the sensor, wherein the control system comprises a memory device and a controller. | 2012-05-24 |
20120128027 | APPARATUS AND METHOD FOR MEASURING THE TEMPERATURE OF A MATERIAL - An apparatus for measuring a temperature of a material includes a body unit disposed on an exit side of a heating furnace; a temperature measuring unit installed on the body unit and constructed to measure a temperature of a material which is extracted from the heating furnace; a foreign substance removing unit installed on the body unit and constructed to inject a fluid toward the material so as to remove foreign substances adhered to the material; and a moving unit installed on the body unit and constructed to move the temperature measuring unit. | 2012-05-24 |
20120128028 | Method of Measuring the Temperature of a Sample Carrier in a Charged Particle-Optical Apparatus - A method of determining the temperature of a sample carrier in a charged particle-optical apparatus, characterized in that the method comprises the observation of the sample carrier with a beam of charged particles, the observation giving information about the temperature of the sample carrier. The invention is based on the insight that a charged particle optical apparatus, such as a TEM, STEM, SEM or FIB, can be used to observe temperature related changes of a sample carrier. The changes may be mechanical changes (e.g. of a bimetal), crystallographic changes (e.g. of a perovskite), and luminescent changes (in intensity or decay time). In a preferred embodiment the sample carrier shows two bimetals, showing metals with different thermal expansion coefficients, bending in opposite directions. The distance between the two bimetals is used as a thermometer. | 2012-05-24 |
20120128029 | MEASURING SENSOR FOR TEMPERATURE MEASUREMENT - The invention relates to a measuring sensor for measuring temperature in a chemical process, the measuring sensor comprising a measuring element supported on the frame of the measuring sensor and arranged in thermal contact with the process being measured, and measuring conductors connected to the measuring element for directing a measuring signal onward. The frame of the measuring sensor is made of mineral material. | 2012-05-24 |
20120128030 | Temperature Sensor - The invention relates to a sensor for measuring temperature without contact. Both the instantaneous temperature and the rising above or falling below a critical temperature can be detected. The invention is characterized in that the sensor contains a magnetic element (for example, a magnetocaloric material and/or shape memory alloy), the magnetic characteristics of which change greatly as the temperature changes. The temperature to be measured is determined indirectly by means of a variable magnetic field (which acts, for example, on the resonator plate or another soft magnetic element). | 2012-05-24 |
20120128031 | Electronic Clinical Thermometer - A thermometer is constituted by a body member with a display portion and a tip member secured to the body member. The tip member has a hollow cavity and a thermal contact surface surrounding the hollow cavity. A thermal sensor is mounted on the inside of the tip member, adapted for sensing the thermal contact surface and producing a temperature signal. Lead wires are coupled to the thermal sensor for transmission of the temperature signal to the display portion. A hollow heat conductive structure is inserted into the hollow cavity of the tip member, including a film with a heat conductive surface which is directly contacted and against the inside of the thermal contact surface. The lead wires are integrated on the heat conductive surface of the film such that the lead wires and the heat conductive surface are coplanar to form a single piece. | 2012-05-24 |
20120128032 | POLAR COMPONENT DETECTION - In a hydrocarbyl gas the presence and amount of a condensable polar component may be detected by voltage or current excursions over background noise as measured using a probe having at least two common electrodes and optionally a third electrode preferably inert to corrosion. | 2012-05-24 |
20120128033 | THERMAL SENSOR FOR SEMICONDUCTOR CIRCUITS - A system and a method for measuring temperature within an operating circuit use a Wheatstone bridge within a temperature sensing circuit. One of the resistors in the Wheatstone bridge is a thermally sensitive resistive material layer within the operating circuit. The other three resistors are thermally isolated from the operating circuit. Particular configurations of NFET and PFET devices are used to provide enhanced measurement sensitivity within the temperature sensing circuit that includes the Wheatstone bridge. | 2012-05-24 |
20120128034 | Infrared, CDMA and OFDM Signal Transmission Methods - Methods for, processing, modulating and transmitting one or more signals, in a mobile unit, used in an infrared (IR) system, in a cellular system and in a Wi-Fi wireless network. Receiving, demodulating and processing a modulated signal for generating a position finder signal, including Global Positioning System (GPS) signal. Method for generating and processing cross-correlated, TDMA, CDMA and OFDM signals. Selection of TDMA, CDMA and OFDM signals and transmission of TDMA, CDMA, OFDM or IR signal. Processing methods for providing cross-correlated spread spectrum, or cross-correlated Orthogonal Frequency Division Multiplex (OFDM) baseband signals to quadrature modulators for modulation and transmission. Method for multiple input multiple output (MIMO)transmission-reception. Method for processing touch-screen generated signals into touch screen generated control signals for control of selection of transmission of one or more of TDMA or CDMA or OFDM or IR signal. | 2012-05-24 |
20120128035 | LOW POWER ULTRA WIDEBAND TRANSCEIVERS - Low-power transmitter and/or receiver devices are provided by sacrificing time and/or frequency diversity in exchange for lower power consumption. When channel conditions indicate that time and/or frequency spreading are unnecessary for transmissions, a transmitter may enter into a power-conservation mode in which transmissions are performed using a time gating scheme or a time repetition scheme. In the time gating scheme, symbols are transmitting just once, rather than a plurality of times, but with increased transmission power. In the time repetition scheme, copies of the same symbol are transmitted a plurality of times on the same frequency on different symbol transmission periods, instead of being retransmitted on different frequencies on different symbol transmission periods. Consequently, the symbol can be generated once and stored for subsequent retransmission, thereby allowing some of the transmitter/receiver chain components can be operated at a lower duty cycle or processing speed to conserve power. | 2012-05-24 |
20120128036 | RECEIVER AND METHOD FOR RECEIVING DATA IN HUMAN BODY COMMUNICATION SYSTEM USING MULTIPLE RECEIVERS - There are provided a receiver in human body communication system using multiple receivers capable of reducing an error rate of receiver signals by applying a space diversity acquisition-related SIMO technology to a plurality of received data using multiple receivers or receiver electrodes in a human body communication system using a human body as a medium, and of stably transmitting the data for the interference of signals generated by other users or from different electronic devices, and a method for receiving data in a human body communication system. The receiver and the method for receiving data in a human body communication system may be useful to stably transmit/receive data without any reduction of its transmission rate by reducing the distortion in channels and the signal noise which are caused in the use of one receiver. | 2012-05-24 |
20120128037 | ASYNCHRONOUS FIFO CIRCUIT FOR LONG-DISTANCE ON-CHIP COMMUNICATION - The disclosed embodiments provide a first-in, first-out (FIFO) circuit that operates asynchronously. The FIFO circuit includes a data path that contains data latches sequentially connected through data-wire segments. The FIFO circuit also includes a control circuit that generates control signals for the data latches so that the data path behaves like a FIFO. The control circuit includes control components sequentially connected to each other through control-wire segments and repeaters located within the control-wire segments. The control components are configured to asynchronously generate the control signals for the data latches, and the repeaters are configured to repeat asynchronous signals communicated between the asynchronous control components. | 2012-05-24 |
20120128038 | Repeater for mimo signals in a network - A system to repeat MIMO signals in a network by orthogonally polarizing the signals and maintaining the orthogonal polarization. | 2012-05-24 |
20120128039 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL FOR RELAY BACKHAUL LINK IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for transmitting and receiving a control channel for a relay backhaul link in a wireless communication system. In the transmission method of a control channel for a backhaul link in a base station of a wireless communication system according to one aspect of the present invention, the base station (BS) divides and allocates a 1 | 2012-05-24 |
20120128040 | Module for an Active Antenna System - A module for an active antenna system for receiving and transmitting radio signals sealed in a housing. It comprises a power connector placed at the outside of the housing for supplying the module with supply power; at least one micro radio for receiving/sending digital radio signals having a digital down-converter/a digital up-converter and a control signal converter. The micro radio converts the digital radio signals to analogue RF (radio frequency) signals and vice versa and is connected to the internal bus. At least one antenna element is connected to the micro radio and an internal data bus for the exchange of digital radio data and control data is connected to micro radio and hub. By placing two or more modules next to each other on a frame these modules form an active antenna system. | 2012-05-24 |
20120128041 | POWER CONSCIOUS SELF-HEALING TRANSCEIVER SYSTEMS AND METHODS - The various embodiments of the present disclosure relate generally to power-conscious self-healing transceiver systems and methods. An embodiment of the present invention provides a method of power-consciously self-healing a transceiver system. The method comprises providing a transceiver device having a plurality of tuning elements configured to control a plurality of specifications of the device, determining initial values for the plurality of tuning elements, and performing a hardware-iterative gradient search to obtain values for each tuning element such that the plurality of specifications are within a tolerated range. | 2012-05-24 |
20120128042 | SCATTERING-PARAMETER ESTIMATION METHOD AND TRANSCEIVER USING THE SAME - The present invention discloses a scattering-parameter estimation method for a transceiver of a half-duplex multicarrier communication system. The scattering-parameter estimation method includes steps of converting a first frequency-domain transmit signal to generate at least one symbol period of the first time-domain transmit signal; transmitting the first time-domain signal in a first specific time period; receiving and storing at least one symbol period of the first echoed signal of the first time-domain transmit signal in the first specific time period; converting at least one symbol period of the first echoed signal into a first frequency-domain echoed signal after a first transmission period; and estimating the S11 parameters corresponding to carriers respectively according to the first transmit signal and the first echoed signal. | 2012-05-24 |
20120128043 | APPARATUS AND METHOD FOR DETERMINATION OF FRAME STRUCTURE FOR REDUCING INTERFERENCE IN FREQUENCY REUSE SYSTEM USING COGNITIVE RADIO - Disclosed are an apparatus and method for determining a frame structure for reducing interference between users using the same frequency band in a communication system using a cognitive radio, the method including, collecting channel status information related to a primary user with a priority to occupancy of a predetermined frequency band, executing spectrum sensing for the frequency band to check whether the primary user's traffic exists, deciding a length of a data frame to be transmitted in consideration of interference to the primary user based upon the collected channel status information if a channel in which the primary user's traffic is not present is sensed through the spectrum sensing, constructing a data frame based upon the decided frame length to transmit via the sensed channel, and re-executing the spectrum sensing for the channel, if data to be additionally transmitted exists, and rechecking whether the primary user's traffic is present. | 2012-05-24 |
20120128044 | METHOD AND DEVICE FOR OPERATING A PRECODED MIMO SYSTEM - A method is provided for generating precoder data ( | 2012-05-24 |
20120128045 | METHODS AND APPARATUS FOR INTELLIGENT POWER REDUCTION IN COMMUNICATIONS SYSTEMS - Methods and apparatus for power control in a communications device are described. Bonding of channels in a modem may be dynamically adjusted responsive to user activity or demand for bandwidth. Bonded channel configurations may be adjusted to single channel configurations for low power operation. Modem configuration may be dynamically adjusted so as to maintain only required synchronization and system information to facilitate rapid data transfer resumption upon demand. | 2012-05-24 |
20120128046 | RADIO COMMUNICATION TERMINAL DEVICE AND RADIO COMMUNICATION METHOD - A radio communication terminal device includes a storage unit that stores group information indicating a group of frequencies belonging to the same communication carrier, a communication-carrier searching unit that selects one of to-be-selected frequencies, the to-be-selected frequencies being frequencies at which radio waves arrive, and that searches for a communication carrier using the selected frequency on a basis of identification information received at the selected frequency, and a search-execution controlling unit that excludes, from the to-be-selected frequencies, another frequency that belongs to the group information including the selected frequency and that is other than the selected frequency. | 2012-05-24 |
20120128047 | BURST PROCESSING MODEM - A burst processing modem. Implementations may include a receive side including a channelizer adapted to process a plurality of channels and write a plurality of frames to a receive RAM array. A receive frame state machine may be adapted to generate a timing signal using a burst time plan for the plurality of frames. A demodulator may be coupled with the receive RAM array and adapted to read from the receive RAM array only the one or more bursts from the plurality of frames indicated by the timing signal. A transmit side may include a modulator coupled with a transmit frame state machine, with a transmit RAM array, and a combiner bank. The combiner bank may read the modulated plurality of channels from the transmit RAM array and assemble a plurality of frames using a timing signal generated from a burst time plan by the transmit frame state machine. | 2012-05-24 |
20120128048 | Detection and Estimation of Narrowband Interference By Matrix Multiplication - One or more processing units are programmed to select from among M tones in a frequency domain representation of a signal, a set of tones including at least a strongest tone (relative to background noise) and a tone adjacent thereto. From among M complex numbers in the frequency domain representation of the signal, a set of complex numbers are identified and denoted as a vector Z, corresponding to the selected set of tones. Vector Z is then multiplied with each of M columns of a matrix G which is predetermined to identify a sub-resolution maxima in Z. The M products that result from the vector multiplication of Z and G are used to determine and store in memory at least one or both of: (A) a flag indicating presence or absence of narrowband interference in the signal; and (B) an estimate of a frequency of the narrowband interference. | 2012-05-24 |
20120128049 | Confirmation of Presence of Narrowband Interference By Harmonic Analysis - One or more processing units confirm existence of narrow band interference in a signal by using an estimate f of the frequency, to check for one or more harmonics. In illustrative embodiments, the estimate f is automatically identified as a second harmonic if a predetermined criterion is satisfied by the signal (in the frequency domain) at either of two frequencies namely (A) frequency f/2 and (B) frequency (M−f)/2 and whichever of these two frequencies is stronger is identified as the fundamental frequency. In several such embodiments, the estimate f is automatically identified as a third harmonic if a predetermined criterion is satisfied by the signal (in the frequency domain) at any of three frequencies namely (C) frequency f/3 and (D) frequency (M−t)/3 and (E) frequency (M+f)/3. If the predetermined criteria are not met at all five frequencies (A)-(E) then f is identified as the fundamental frequency. | 2012-05-24 |
20120128050 | FEEDBACK SCHEME FOR MULTI-CELL INTERFERENCE MITIGATION CONSIDERATION LEGACY MOBILE USERS - The present invention relates to a Multi-Input Multi-Output (MIMO) communication system and more particularly, to a method for precoding matrix index (PMI) restriction/recommendation in a multi-cell wireless communication system. A method of codebook based precoding matrix index (PMI) feedback considering legacy mobile stations in a multi-cell wireless communication system comprises measuring a channel from at least one neighboring base station generating interference with a signal received from a serving base station; determining a first PMI in which the interference is maximized from PMIs included in a first codebook, wherein the first PMI is determined based on the measured channel; determining a first PMI group including PMIs having high correlation to the first PMI from the PMIs included in the first codebook; determining a second PMI in which the interference is maximized from PMIs included in a second codebook, where in the second codebook is for the legacy mobile stations; determining a second PMI group including PMIs having high correlation to the second PMI from the PMIs included in the second codebook; and transmitting feedback information including the first PMI, a first subset bit indicating the first PMI group, the second PMI and a second subset bit indicating the second PMI group to the serving base station. | 2012-05-24 |
20120128051 | Evaluation Device for Providing a Transceiver System with Performance Information Thereof - An evaluation device is adapted for providing a transceiver system with performance information thereof. The transceiver system includes a transmitter and at least one receiver, and models a channel between the transmitter and the receiver using Nakagami distribution with a fading parameter. The evaluation device includes a signal-to-noise ratio (SNR) setting module, an error rate computing module, and an output module. The SNR setting module is operable to set an average SNR for the channel between the transmitter and the receiver of the transceiver system. The error rate computing module is operable, based upon the fading parameter, the average SNR and a number of the receiver, to compute a bit error rate over the channel between the transmitter and the receiver. The output module is operable to provide the transceiver system with the average SNR and the bit error rate as the performance information of the transceiver system. | 2012-05-24 |
20120128052 | CARRIER FREQUENCY ACQUISITION METHOD AND APPARATUS HAVING IMPROVED RELIABILITY FOR DETECTING CARRIER ACQUISITION OR LOSS THEREOF - A carrier signal acquisition technique is disclosed. An improved course carrier frequency offset algorithm is employed in conjunction with a conventional fine carrier frequency offset algorithm. The course carrier frequency offset algorithm estimates large offsets that are multiples of the carrier spacing that may occur at system startup. A spectral null is placed in the center of the transmit spectrum and is thereafter located in a received signal. The position of the spectral null provides an estimate of the local oscillator carrier offset. A frequency finite state machine (FSM) processes a number of metrics to ensure the reliability of the course carrier frequency offset and of transitions between acquisition and tracking modes. The frequency FSM will utilize the frequency offset (modin) generated by a MODSC algorithm provided one or more predefined thresholds are satisfied. | 2012-05-24 |
20120128053 | METHOD AND APPARATUS FOR CONTROLLING A CONTINUOUS TIME LINEAR EQUALIZER - An example method for controlling a continuous time linear equalizer includes: developing a voltage histogram of a signal present at an output of a continuous time linear equalizer; developing a quality factor for the voltage histogram; comparing the quality factor with a prior quality factor; decreasing an equalization of the continuous time linear equalizer if the quality factor is less than the prior quality factor and increasing the equalization of the continuous time linear equalizer if the quality factor is greater than the prior quality factor. | 2012-05-24 |
20120128054 | SINGLE PATH DETECTION AND EQUALIZER OPTIMIZATION - An algorithm to detect single path channel conditions and reduce the span (number of taps) of the equalizer in order to mitigate the performance degradation caused by noisy equalizer taps is disclosed. The algorithm provides two novel components comprising single path scenario detection and single path scenario processing or (equalizer shortening). A single path scenario is detected when the energy concentrated in a single channel impulse response tap divided by the total energy of the taps exceeds a predetermined threshold. When a single path scenario is detected, only the equalizer taps within a variable window around the equalizer tap having concentrated energy are used to filter the received signal. | 2012-05-24 |
20120128055 | METHOD, APPARATUS, AND SYSTEM TO COMPENSATE INTER-SYMBOL INTERFERENCE - Described herein are a method, an apparatus, and a system to compensate inter-symbol interference (ISI) for a signal at a receiver. The apparatus comprises a first logic unit to generate decision feedback equalizer (DFE) coefficients for data samples of a data signal; a second logic unit to generate DFE coefficients for edge samples of the data signal, wherein the DFE coefficients for the edge samples of the data signal are based at least in part on the DFE coefficients for the data samples of the data signal; and a third logic unit to compensate the data and edge samples of the data signal for inter-symbol interference at the data and edge samples of the data signal, wherein the third logic unit to compensate for inter-symbol interference by using the DFE coefficients for the data and edge samples generated by the first and the second logic units respectively. | 2012-05-24 |
20120128056 | METHOD AND APPARATUS FOR JOINT EQUALIZATION AND DECODING OF MULTIDIMENSIONAL CODES TRANSMITTED OVER MULTIPLE SYMBOL DURATIONS - A method and apparatus are disclosed for performing joint equalization and decoding of multidimensional codes transmitted over multiple symbol durations. An RSSE scheme is disclosed that cancels the intrasymbol interference caused by other symbol components within the same multidimensional code symbol. The disclosed RSSE technique for multidimensional codes applies where the number of trellis code dimensions exceeds the number of channels. The disclosed RSSE decoder computes the intersymbol interference caused by previously decoded multidimensional code symbols and subtracts the intersymbol interference from the received signal. In addition, a branch metrics unit compensates for the intrasymbol interference caused by other symbol components within the same multidimensional code symbol. | 2012-05-24 |
20120128057 | NETWORK NODE, IN PARTICULAR, FOR A SENSOR NETWORK, AND OPERATIONAL METHOD FOR A NETWORK NODE - A network node, in particular, for a sensor network, is configured to receive sensor data from at least one further network node transmitting the sensor data. The network node has a time stamp device, which is configured to assign received sensor data values time stamps, which represent a time of reception of the sensor data values at the network node with respect to a primary time reference assigned to the network node. | 2012-05-24 |
20120128058 | METHOD AND SYSTEM OF ENCODING AND DECODING MEDIA CONTENT - A method of generating a video container format file. The method comprises receiving a still image depicting a scene, receiving at least one object pertaining to the scene, encoding the still image as at least one video block of a video container format file, encoding the at least one object as data of the video container format file, and outputting the video container format file. | 2012-05-24 |
20120128059 | Method of adaptive motion estimation in search windows for video coding - The invention discloses a method of adaptive motion estimation in search windows for video coding, which uses adjacent MBs to predict the range of search window, storing MVs of adjacent MBs respectively for each reference frame, then using MVs of three adjacent MBs to delimit the scope of search window on the same reference frame. It could derive the most similar MB from the scope of search window than the current MB. | 2012-05-24 |
20120128060 | Method and Apparatus of Spatial Motion Vector Prediction - An apparatus and method for deriving a motion vector predictor or a motion vector predictor candidate or a motion vector or a motion vector candidate for a current block are disclosed. In video coding systems, the spatial and temporal redundancy is exploited using spatial and temporal prediction to reduce the information to be transmitted or stored. Motion Vector Prediction (MVP) has been used to further conserve the bitrate associated with motion vector coding. The MVP technique being developed for the current HEVC only considers the motion vector having the same reference list and the same reference picture index as the current block to be an available spatial motion vector predictor candidate. It is desirable to develop a MVP scheme that can improve the availability of the motion vector predictor candidate based on motion vectors from the spatially neighboring block. Accordingly, an apparatus and method for determining a motion vector predictor or motion vector predictor candidate or motion vector or motion vector candidate for a current block based on motion vectors associated with reference pictures in list | 2012-05-24 |
20120128061 | DYNAMIC TIME SYNCHRONIZATION - A method is provided in certain example embodiments and may include evaluating a first video stream being encoded by a first encoding element, where the first video stream is provided at a first bit rate. The method may also include evaluating a second video stream being encoded by a second encoding element, where the second video stream is provided at a second bit rate. The method may further include providing an output that is reflective of a time synchronization and a frame alignment for a plurality of frames within the first video stream and the second video stream. | 2012-05-24 |
20120128062 | METHOD AND APPARATUS FOR SPLICING A COMPRESSED DATA STREAM - A method of splicing a first data stream and a second data stream is disclosed. The method comprising detecting a splice in-point and a splice out-point within the first data stream, wherein the splice in-point is a frame in the first data stream and in the splice out-point is another frame in the first data stream. The method further identifies splice-in opportunity point and a splice-out opportunity point from a plurality of splice opportunity points (SOPs) in the first data stream, wherein the splice-in opportunity point corresponds to the splice in-point and the splice-out opportunity point corresponds to the splice out-point, wherein the splice-in opportunity point and the splice-out opportunity point are frames of the first data stream. The method replaces at least one frame of the first data stream with at least one frame of the second data stream, wherein the replacement of the frames of the first data stream starts onwards the splice-in opportunity point and ends at the splice-out opportunity point; and wherein the first data stream includes a plurality of frames and the second data stream includes a plurality of frames. The method performs the splicing operation without de-packetization of the first data stream. In addition, the replacement of the frames does not require re-ordering of the frames of the first data stream. | 2012-05-24 |
20120128063 | CHANNEL ADAPTIVE VIDEO TRANSMISSION SYSTEM FOR USE WITH LAYERED VIDEO CODING AND METHODS FOR USE THEREWITH - A video transmission system includes a transceiver module that transmits a video signal to a remote device over at least one communications channel wherein the video signal is transmitted as at least one separate video layer stream chosen from, an independent video layer stream and at least one dependent video layer streams that require the independent video layer for decoding. A control module determines at least one channel characteristic of the at least one channel and chooses the at least one separate video layer stream based on the at least one channel characteristic of the at least one channel. | 2012-05-24 |
20120128064 | IMAGE PROCESSING DEVICE AND METHOD - The present invention relates to an image processing device and method enabling encoding efficiency to be improved with VLC format encoding. | 2012-05-24 |
20120128065 | CODING METHOD, DECODING METHOD, CODING APPARATUS, AND DECODING APPARATUS - A coding method according to an implementation of the present invention includes: transforming an input signal using a first transform coefficient (S | 2012-05-24 |
20120128066 | ENCODING METHOD, DECODING METHOD, ENCODING DEVICE AND DECODING DEVICE - A coding method comprises: transforming an input signal; quantizing a transformed output signal; and entropy coding quantized coefficients, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including the generated second transformed output signal and a second partial signal which is the remaining part of the first transformed output signal other than the first partial signal, and wherein, in the generating and outputting, at least one of (i) the first partial signal that is a target signal range for the second transform and (ii) the second transform coefficient is adaptively determined temporally or spatially. | 2012-05-24 |
20120128067 | Apparatus and Method of Constrained Partition Size for High Efficiency Video Coding - An apparatus and method for video coding and decoding with constrained PU partition are disclosed. In the High Efficient Video Coding (HEVC) system, rate-distortion function or other performance criterion usually is evaluated for various CU partition and PU partition during the encoding process in order to select a configuration with best possible performance. The PU design in the current HEVC development results in some redundancy that causes rate-distortion function or other performance criterion repeatedly evaluated for same PU configuration. Accordingly, constrained PU partition is developed to eliminate or reduce the redundancy in processing. Furthermore, necessary syntax to convey the information related to constrained PU partition between an encoder and a decoder is developed. Systems embodying the present invention has been shown to result in sizeable reduction in encoding and decoding time while the performance in terms of RD-rate remains approximately the same or slightly higher than a conventional HEVC system. | 2012-05-24 |
20120128068 | METHOD FOR DECODING A STREAM OF CODED DATA REPRESENTATIVE OF A SEQUENCE OF IMAGES AND METHOD FOR CODING A SEQUENCE OF IMAGES - A method for decoding a stream of coded data representative of a sequence of images is disclosed. The decoding method comprises | 2012-05-24 |
20120128069 | IMAGE PROCESSING APPARATUS AND METHOD - The present invention relates an image processing apparatus and method able to realize parallelized or pipelined intra prediction while also improving coding efficiency. | 2012-05-24 |
20120128070 | Video Encoding Method for Encoding Division Block, Video Decoding Method for Decoding Division Block, and Recording Medium for Implementing the Same - Disclosed are a method of encoding a division block in video encoding and a method of decoding a division block in video decoding. An input picture is divided into encoding unit blocks. The coding unit (CU) blocks are divided into sub-CU blocks. The sub-CU blocks are encoded by selectively using at least one of intra prediction encoding and inter prediction encoding. A decoding process is performed through a reverse process of the encoding method. When pixel values of a CU block are encoded in video encoding, the flexibility in selecting an encoding mode is increased and the efficiency of encoding is increased. | 2012-05-24 |
20120128071 | APPARATUS AND METHOD FOR PERFORMING ERROR CONCEALMENT OF INTER-CODED VIDEO FRAMES - An embodiment relates to performing error concealment of a corrupted block in a video frame, which is capable of performing a real time reconstruction of corrupted blocks which allow to precisely recover small details and fine movements, in particular, the error concealment apparatus and method according to an embodiment selects a replacement block by taking into account the luminance distortion and the motion characteristics of the video sequence. The latter is represented by the distance of the motion vectors chosen as candidate replacements and the average value of the motion vectors of the blocks surrounding the missing block in the current frame. | 2012-05-24 |
20120128072 | IMAGE CONVERTING APPARATUS, IMAGE REPRODUCING APPARATUS, AND IMAGE CONVERTING METHOD - An image reproducing apparatus that achieves a higher readiness, high-speed backward reproduction, and a minimum amount of data, at a time of executing a backward reproduction. An encoder-side intra predictor transcodes decode images of a front end and a back end of a GOP of an image stream. An encoder-side motion compensator transcodes a decode image other than that of the front end of the GOP of the image stream by setting a motion vector to 0 and using an immediately preceding reference image. | 2012-05-24 |
20120128073 | VIDEO ENCODING APPARATUS AND A VIDEO DECODING APPARATUS - According to one embodiment, a video encoding apparatus is a video encoding apparatus for subjecting a video image to motion compensated prediction coding, includes an acquisition module to acquire available blocks of blocks having motion vectors from encoded blocks adjacent to a to-be-encoded block and number of the available blocks, an acquisition/selection module to select one selection block from the encoded available blocks, a selection information encoder to encode selection information specifying the selection block using a code table corresponding to the number of available blocks, and an image encoder to subject the to-be-encoded block to motion compensated prediction coding using a motion vector of the selection block. | 2012-05-24 |
20120128074 | VIDEO CODING USING SPATIALLY VARYING TRANSFORM - Transform coding is not restricted inside normal block boundary but is adjusted to the characteristics of the prediction error. Thereby it is possible to achieve a coding efficiency improvement by selecting and coding the best portion of the prediction error in terms of rate distortion tradeoff. | 2012-05-24 |
20120128075 | APPARATUS FOR DECODING RESIDUAL DATA BASED ON BIT PLANE AND METHOD THEREOF - An apparatus for decoding residual data based on a bit plane and a method thereof, capable of achieving a significant reduction in data traffic between a memory and a functional module in a parallel decoding system, include a variable length decoding module configured to generate residual data for each macroblock from a bit stream, divide the residual data into groups, and generate a bit plane regarding each of the groups, and a variable length decoding memory configured to store the bit plane generated from the variable length decoding module and store the residual data of the groups according to a value of the bit plane. | 2012-05-24 |
20120128076 | APPARATUS AND METHOD FOR REDUCING BLOCKING ARTIFACTS - The present invention relates to an apparatus for reducing blocking artifacts in a coded video signal comprising a plurality of video frames. An apparatus is proposed comprising a wavelet decomposition unit that decomposes an input video frame by use of wavelet decomposition into at least two frequency bands, a block grid detector that detects block borders in at least one high frequency band of said at least two frequency bands, a deblocking unit that equalizes the energy of detected block borders with the energy of neighboring areas of the same high frequency band to obtain processed frequency bands to reduce blocking artifacts in said video frame, and a wavelet composition unit that composes an output video frame from said input video frame and said processed frequency bands by use of wavelet composition. | 2012-05-24 |
20120128077 | METHOD AND DEVICE FOR COMPRESSING A VIDEO SEQUENCE - The present invention relates to the field of video compression and, specifically, to controlling the bit rate of the generated compressed sequence. This invention relates to a method for constant bit rate compression, using a step of normalising the compression ratio. Variations in said ratio can thus be smoothed out, eliminating sudden variations in image quality in the resulting sequences. The perceived quality of the service is thereby improved. | 2012-05-24 |
20120128078 | Power Quality Device Having Communication Interface - Systems and methods provide power quality devices that include a communication interface to establish communications with the computer. | 2012-05-24 |
20120128079 | Dynamic Transmit Power Control Method and Power Line Communication System - The present discloses a dynamic transmit power control method for a power line communication (PLC) system. The dynamic transmit power control method includes steps of collecting a data; and adjusting a compliant transmit power spectrum density (PSD) mask according to a non-flat transmit PSD mask and the data; wherein the compliant transmit PSD mask complies with the non-flat transmit PSD mask, which comprises a plurality of reference PSDs corresponding to a plurality of frequency bands. | 2012-05-24 |
20120128080 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING TIME BROADCASTING INFORMATION USING POWER LINE - In the present invention, time information is sent through a common power line in executing home automation devices or using various industrial equipments. In the power line broadcasting, a small amount of data, such as time information, is transmitted unidirectionally, and long-distance power line broadcasting can be possible using carriers of a low frequency band. time setting for various instruments is automatically performed in response to a power signal after a breakdown of electric current, making unnecessary a user's action to perform the time setting, and the existing power line can be used without change. | 2012-05-24 |
20120128081 | POWER LINE COMMUNICATION DEVICE, POWER SUPPLY CIRCUIT WITH COMMUNICATION FUNCTION, ELECTRICAL APPLIANCE, AND CONTROL AND MONITORING SYSTEM - To realize a transmission function of power line communication by a further simplified and cost-effective circuit configuration, in a PLC modem installed in an electric appliance such as a household electrical appliance. | 2012-05-24 |
20120128082 | Methods and Systems for Programmable Digital Down-Conversion - A radio communication apparatus operable over a wide range of frequencies including a signal processing device is provided. The device performs an analog to digital conversion at a predetermined sample rate independent of a selected frequency band within the wide range of frequencies to generate a digital signal, and digitally processes the digital signal to output a data signal at baseband associated with the selected frequency band. | 2012-05-24 |
20120128083 | Method For Transmitting Signals, User Equipment Thereof - The present invention discloses a method for signal transmission and a user equipment (UE), wherein said method comprises: user equipment UE calculating an MSE of a first layer of signal and an MSE of a second layer of signal; the UE selecting a pre-coding matrix from a plurality of pre-coding matrices according to the sum of the MSE of the first layer of signal and the MSE of the second layer of signal; and the UE informing a base station to use the selected pre-coding matrix to transmit signals. By way of the present invention, the correct transmission of signals is ensured, the block error rate of the system is reduced, and the throughput of the system is improved. | 2012-05-24 |
20120128084 | NETWORK OPTIMIZATION BASED ON USER EQUIPMENT TYPE - A network device may include a first set of components and a second set of components. The first set of components may manage, using a first set of parameters, at least one of uplink radio resources or downlink radio resources for a group of mobile user equipment. The second set of components may manage, using a second set of parameters, at least one of uplink radio resources or downlink radio resources for a group of fixed user equipment. The second set of parameters may be different than the first set of parameters. | 2012-05-24 |
20120128085 | SIGNAL PROCESSING METHOD AND RECEIVER - A receiver selects, regarding each of signals corresponding to component elements of a transmission column vector, a number of transmission signal candidates equal to a number according to a predetermined parameter based on inter-signal point distances between a plurality of transmission signal candidates regarding the transmission column vector and the signal from among the plural transmission signal candidates. Then, the receiver reproduces the transmission signal by determining a unique set of transmission signal candidates regarding each component element of the transmission column vector based on the sum total of the inter-signal point distances between the selected transmission signal candidates and the signals. | 2012-05-24 |
20120128086 | IDENTIFICATION METHOD OF AN OFDM SIGNAL - An OFDM signal identification method in a received signal, wherein the received signal is sampled and cut off into blocks of P samples, each block being subjected to an inverse Fourier transform to obtain a plurality of symbols at a plurality of frequencies. For each frequency of the plurality, the kurtosis of the set of symbols thus obtained at this frequency is calculated, and then it is determined whether the kurtosis has a periodicity in frequency domain from kurtosis values calculated for the frequencies of the plurality, and the presence of an OFDM signal in the received signal is identified if the kurtosis has such a periodicity. | 2012-05-24 |
20120128087 | TRANSMISSION APPARATUS AND TRANSMISSION METHOD - A wireless receiving apparatus capable of efficiently removing interference signals in a multicarrier communication. In a mobile station incorporating this wireless receiving apparatus, a selecting part selects a plurality of the same symbols in accordance with a mapping pattern established at the time of generating OFDM symbols in a base station. A correlation value calculating part determines correlation values between the subcarriers of the same symbols to generate an R-matrix, and further determines an inverse matrix of the R-matrix. An MMSE processing part performs an MMSE processing to determine a weight from both a P-vector received from a channel estimating part and the inverse matrix of the R-matrix received from the correlation value calculating part. Multipliers multiply each of the symbols selected by the selecting part by the weight determined by the MMSE processing part. A combining part combines the symbols as multiplied by the weight. | 2012-05-24 |
20120128088 | ADAPTIVE MULTIPLE ANTENNA TRANSMISSION METHOD AND APPARATUS IN ACCORDANCE WITH ANTENNA TRANSMISSION POWER IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and an adaptive multiple antenna transmission method and apparatus in accordance with antenna transmission power are disclosed. A method of performing multiple antenna transmission from a terminal to a base station according to one embodiment of the present invention may include the steps of: determining a reference value for a transmission power of each of a plurality of transmit antennas of the terminal; grouping the plurality of transmit antennas into a first group of transmit antennas and a second group of transmit antennas in accordance with the determined reference value; and transmitting a signal to the base station through at least one of the first group of the transmit antennas and the second group of transmit antennas. | 2012-05-24 |
20120128089 | WIRELESS COMMUNICATION SYSTEM, TRANSMITTING APPARATUS, WIRELESS COMMUNICATION METHOD, AND CONTROL METHOD FOR TRANSMITTING APPARATUS - A wireless communication system includes a transmitting apparatus, and a plurality of receiving apparatuses. A first receiving apparatus among the plurality of receiving apparatuses includes, a first receiver that receives wireless signals transmitted from a plurality of antennas of the transmitting apparatus, a first processor that selects, from among a plurality of transmission weights, a transmission weight that allows a quality of a wireless signal to satisfy specified criteria, and a first transmitter that transmits weight information concerning the selected transmission weight to the transmitting apparatus. The transmitting apparatus including a second receiver that receives the weight information from the first receiving apparatus, and a second processor that corrects for a phase difference among the plurality of antennas based on the weight information, the weight information relating to positional information concerning a position of the first receiving apparatus. | 2012-05-24 |
20120128090 | METHOD FOR PROVIDING INFORMATION OF ACCESS POINT SELECTION - A method for providing information of access point (AP) selection in a wireless local area network (WLAN) system is provided. The method includes: receiving from candidate APs the AP selection information comprising channel correlation information for other stations associated with the candidate APs; and selecting one AP from candidate APs according to the channel correlation information corresponding to the candidate APs. Accordingly, a gain of multi-user multiple input multiple output (MIMO) can be increased, and an AP suitable for a terminal can be selected. | 2012-05-24 |
20120128091 | IN-BAND GENERATION OF LOW-FREQUENCY PERIODIC SIGNALING - In a first embodiment of the present invention, a method for communicating main and auxiliary data over a transmission medium is provided, the method comprising: generating a low-frequency output pattern using a high-frequency oscillator, wherein the low-frequency output pattern contains the auxiliary data encoded in a first scheme, wherein the first scheme resembles an output pattern that would be generated by a low-frequency oscillator; sending the low-frequency output pattern through a transmitter to be transmitted over the transmission medium; generating a high-frequency signal using a high-frequency oscillator, wherein the high-frequency signal contains the main data encoded in a second scheme different than the first scheme; and sending the high-frequency signal through the transmitter to be transmitted over the transmission medium. | 2012-05-24 |
20120128092 | DIGITAL SIGNAL PROCESSING CIRCUIT FOR GENERATING OUTPUT SIGNAL ACCORDING TO NON-OVERLAPPING CLOCK SIGNALS AND INPUT BIT STREAMS AND RELATED WIRELESS COMMUNICATION TRANSMITTERS - A digital signal processing circuit includes a combining stage and an output stage. The combining stage is arranged to receive a plurality of non-overlapping clock signals having a same frequency but different phases, receive a plurality of first input bit streams, and generate a first output bit stream by combining the first input bit streams according to the non-overlapping clock signals. The output stage is arranged to generate an output according to the first output bit stream. A digital signal processing method includes: receiving a plurality of non-overlapping clock signals having a same frequency but different phases; receiving a plurality of first input bit streams; generating a first output bit stream by combining the first input bit streams according to the non-overlapping clock signals; and generating an output according to the first output bit stream. | 2012-05-24 |
20120128093 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN MOBILE COMMUNICATION SYSTEM - Methods and apparatus are provided for transmitting/receiving data in consideration of carrier frequency in the mobile communication system using multiple transmission antennas for increasing data rate and system throughput. A number of antennas and a plurality of symbols are determined via an in-phase domain and a quadrature-phase domain. The symbols are mapped according to the number of antennas and the in-phase domain and the quadrature-phase domain. The mapped symbols are transmitted through corresponding antennas. | 2012-05-24 |
20120128094 | RADIO APPARATUS - A control unit generates packet signals to be transmitted. The control unit uses either a first packet format, where a second known signal defined by a second radio communication system different from a first radio communication system is assigned anterior to a first known signal defined by the first radio communication system, or a second packet format, where the first known signal is assigned in an anterior part. Subcarriers to be used in the first known signal contain subcarriers to be used in the second known signal, and the first known signal and the second known signal are defined by different values. | 2012-05-24 |
20120128095 | APPARATUS AND METHOD FOR MAPPING SYMBOLS TO RESOURCES IN A MOBILE COMMUNICATION SYSTEM - A method for transmitting data information and control information by a transmitter in a communication system is provided. The method includes identifying an amount of resources to be used for control channel transmission within a predetermined maximum amount of resources available for control channel transmission among total resources of a subframe; mapping control information onto the identified amount of resources to be used for the control channel transmission; mapping data information onto all remaining resources of the subframe, other than the identified resources used for the control channel transmission among the total resources; and transmitting information related to the amount of resources to be used for the control channel transmission, through a predetermined control channel; and transmitting the mapped control information, and the mapped data information. | 2012-05-24 |
20120128096 | METHOD AND DEVICE FOR GENERATING SCRAMBLING CODE - The present invention discloses a method and apparatus for generating a scrambling code, and the method includes: acquiring initial sequences X0, Y0; extending the initial sequences X0, Y0 for (└N/M┘+1) times, and obtaining extended sequences X*, Y*, wherein, the N is a positive integer, 02012-05-24 | |
20120128097 | METHODS AND APPARATUS FOR TRANSMITTING SIGNALS WITH SELECTIVE DELAY FOR COMPENSATION OF INTERSYMBOL INTERFERENCE AND SIMULTANEOUS SWITCHING OUTPUTS - Transmitter-based techniques are provided for compensation of intersymbol interference and/or simultaneous switching outputs, using selective pulse width modulation. One or more signals are transmitted by detecting whether one or more of said signals satisfy one or more predefined signal corruption conditions, wherein said predefined signal corruption conditions indicate that one or more of said signals are anticipated to exhibit one or more of intersymbol interference and simultaneous switching outputs; and selecting a delay for one or more of the signals based on the one or more predefined signal corruptions conditions. The predefined signal corruption conditions comprise, for example, (i) digital data encoded in the one or more signals maintaining a same binary value for two or more consecutive clock cycles (to indicate intersymbol interference); and (ii) a predefined minimum number of aggressor data edges in digital data encoded in the one or more signals, and a corresponding predefined number of victim data edges in the digital data encoded in the one or more signals, wherein the victim edges are moving in an opposite direction to the aggressor data edges (to indicate simultaneous switching outputs). | 2012-05-24 |
20120128098 | APPARATUS AND METHOD FOR DIGITAL PREDISTORTION OF NON-LINEAR AMPLIFIERS - A method used in a transmitting device comprising a non-linear amplifier and a digital predistortion (DPD) circuit. The method updates real and imaginary look-up tables used by the DPD. The method comprises: i) time-aligning a complex input signal, A, and a complex output signal, E. Signal A is a scan from 0 to a maximum value comprising N discrete points and signal E also comprises N discrete points. The method comprises: ii) performing an array division of A/E=(Y | 2012-05-24 |
20120128099 | Method and Frequency Agile Pre-distorted Transmitter Using Programmable Digital Up and Down Conversion - Pre-distorted transmitters operable over a wide range of frequencies including a plurality of predetermined frequency bands are provided. The transmitters include a programmable digital up-converter and a programmable digital down-converter, an ADC, a DAC, a power amplifier and at least one analog filter arranged along a transmit signal path and a feedback signal path. | 2012-05-24 |
20120128100 | FREQUENCY SHIFT CIRCUIT AND COMMUNICATION DEVICE - A frequency shift circuit that shifts the frequency of an input signal using a rotor corresponding to a predetermined phase rotation amount, the frequency shift circuit includes a table look-up unit that includes a plurality of tables that store complex data and outputs the complex data for each table based on address information, a complex multiplication circuit that complex-multiplies the complex data which have been output from the table look-up unit for each table, a deletion circuit that generates a rotor corresponding to a phase rotation amount which is based on a result of complex-multiplication executed, and a calculation circuit that calculates the address information for each table such that exp (2 π j θ) is obtained as the result of complex multiplication executed based on rotation angle information θ. | 2012-05-24 |
20120128101 | METHOD AND APPARATUS FOR ROBUST AND HIGH EFFICIENCY FEC FRAME HEADER RECOVERY - Methods and apparatus for FEC frame header detection are provided, suitable for use in a DVB-C2 receiver. A first method comprises demodulating with a quadrature phase shift keying (QPSK) demapper, followed by correlation and symmetry measures for detection of a robust FEC header. A second method comprises demodulating with a 16 quadrature amplitude modulation (QAM) demapper, followed by correlation and symmetry measures for detection of a high efficiency FEC leader. Another embodiment comprises using both the first and second methods to find the FEC header because the first symbol of the FEC frame header may be sent either in robust mode or in high efficiency mode. There is also provided a method and apparatus for generating an alternate decision statistic for determining detection of the FEC frame header. | 2012-05-24 |
20120128102 | L-VALUE GENERATION IN A DECODER - An apparatus having a first circuit, a second circuit and a third circuit is disclosed. The first circuit may be configured to generate a plurality of load values corresponding to a trellis of a decoding process. The second circuit generally includes a plurality of calculation layers. The calculation layers may be configured to generate a plurality of maximum values in response to the load values. The third circuit may be configured to generate a plurality of L-values of the decoding process in response to the maximum values. | 2012-05-24 |
20120128103 | SYMBOL RATE DETECTOR AND RECEIVER - The symbol rate detector includes a nonlinear processing section configured to perform nonlinear processing on a digitally modulated signal, and to output a processed signal, and a phase-locked loop being in synchronization with the processed signal. The phase-locked loop includes an oscillator configured to generate a signal with a frequency corresponding to a detected symbol rate, a complex multiplier configured to multiply the processed signal by the signal generated by the oscillator, and to output a multiplication result, and a loop filter configured to smooth the multiplication result, and to output the smoothed multiplication result as the detected symbol rate. | 2012-05-24 |
20120128104 | SPACE-TIME DECODER AND METHODS FOR DECODING ALAMOUTI-ENCODED SIGNALS IN HIGH-DOPPLER ENVIRONMENTS - Embodiments of a space-time decoder and methods for decoding Alamouti-encoded signals in high-Doppler environments are generally described herein. Other embodiments may be described and claimed. In some embodiments, soft-symbol outputs are generated from received symbols, a channel rate-of-change, and channel coefficients. Maximum-likelihood decoding may be performed to generate hard-symbol outputs from the soft-symbol outputs. | 2012-05-24 |
20120128105 | MULTIANTENNA RECEIVING DEVICE - A multiantenna receiving device is provided to make it possible to cope with both improvement in error rate characteristic and simplification in structure. The multiantenna receiving device is comprised of soft judgement output units for carrying out a soft judgement of a modulation signal in accordance with signal point distances between a plurality of candidate signal points with respect to a plurality of multiplexed modulation signals and a receiving signal, decoding units for obtaining digital data of the modulation signals by using the judged results obtained by the soft judgement output units, and signal point decreasing units for decreasing the number of the candidate signal points used in the soft judgement output units by recursively using a part of the digital data except self-modulation signals obtained by the decoding units. | 2012-05-24 |
20120128106 | RECEPTION CIRCUIT - A reception circuit is provided which can detect the beginning of data regardless of a preamble or a unique word contained or not in a received signal and regardless of coding systems for received signals. The reception circuit includes a correlation operation portion that performs a correlation operation to generate a correlation signal while sliding one symbol of reference signal in relation to a received signal. The reference signal goes to a high level during a first half symbol period and goes to a low level during a second half symbol period. The reception circuit further includes: a delay portion that outputs a delay signal by delaying the reference signal for a half symbol period in relation to the received signal; and a data beginning timing detection portion that detects a beginning peak timing for the correlation signal as a beginning timing of data contained in the delay signal. | 2012-05-24 |
20120128107 | RECEIVER WITH CONFIGURABLE CLOCK FREQUENCIES - A method includes, in a receiver that operates using multiple clock signals having respective clock frequencies, accepting a request to receive a target channel frequency. In response to the request, a set of preferred clock frequencies is calculated, which when applied by the receiver will cause the receiver to tune to the target channel frequency while satisfying a predefined criterion relating to interference caused by the clock signals. The target channel frequency is received by setting the clock signals to the preferred clock frequencies. | 2012-05-24 |
20120128108 | Method and System for a Sliding Window Phase Estimator for Wideband Code Division Multiple Access (WCDMA) Automatic Frequency Correction - Aspects of a method and system for a sliding window phase estimator for wideband code division multiple access (WCDMA) automatic frequency correction are presented. Aspects of the system may include one or more circuits that enable adjustment of a current demodulation frequency for receiving at least one subsequent symbol based on a computed weighted sum of a plurality of computed frequency error values. Each of the plurality of computed frequency error values may be derived from a current symbol, a corresponding previous symbol, and/or a previous frequency error value. The current symbol may include a current received symbol segment and one or more previously received symbol segments. | 2012-05-24 |
20120128109 | NOISE ESTIMATION FORWIRELESS COMMUNICATION - Techniques for deriving and using noise estimate for data reception in a wireless communication system are described. A noise estimate may be derived for each packet received in a data transmission. Data detection may then be performed for each packet using the noise estimate for that packet. For noise estimation, a first sample sequence and a second sample sequence may be obtained from each receiver used for data reception. A phase offset between the first and second sample sequences may be determined and applied to the first sample sequence for each receiver to obtain a third sample sequence for that receiver. A noise estimate may then be derived based on the power of the differences between the second and third sample sequences for the at least one receiver. | 2012-05-24 |
20120128110 | METHOD AND SYSTEM FOR ELIMINATING IMPLEMENTATION TIMING IN SYNCHRONIZATION CIRCUITS - A method and system for eliminating implementation timing with respect to a synchronization circuit. A standard library cell having a pair of dock input pins can be connected with at least two asynchronous dock domains of the synchronization circuit in order to measure a timing signal between the flip-flop latches crossing the asynchronous clock domain. A timing delay with respect to each bit pair of the asynchronous dock domain can be determined utilizing a static analysis approach during a layout phase in order to effectively synchronize the asynchronous dock domain. Each bit pair of the asynchronous dock domain can be checked via a static timing analysis tool in order to thereby improve functional accuracy of the synchronization circuit in a wide range of digital logic designs. | 2012-05-24 |
20120128111 | NUCLEAR POWER PLANT, METHOD OF FORMING CORROSION-RESISTANT COATING THEREFOR, AND METHOD OF OPERATING NUCLEAR POWER PLAN - In a nuclear power plant, a corrosion-resistant oxide film on a surface of the metal component of a reactor structure is exposed to a high-temperature water, the corrosion-resistant oxide film containing an oxide having a property of a P-type semiconductor, and a catalytic substance having a property of an N-type semiconductor is deposited on the oxide film. The oxide film maintains the property of the P-type semiconductor. | 2012-05-24 |