52nd week of 2017 patent applcation highlights part 65 |
Patent application number | Title | Published |
20170373662 | MULTISTAGE MATCHING NETWORK AND RELATED TECHNIQUES - Multistage matching networks and analytical frameworks for improving and/or optimizingthe networks is provided. In one example, a framework relaxes the resistive constraint on the input and load impedances of the stages of a multistage matching network and allows them to be complex. Based on this framework, the design of multistage matching networks can be improved or optimized, such as using a method of Lagrange multipliers. A design optimization approach, for example, can be used to predict an optimum distribution of gains and impedance characteristics among the stages of a multistage matching network. The efficiency of matching networks designed using this example approach is compared with a conventional design approach, and it is shown that significant efficiency improvements are possible. | 2017-12-28 |
20170373663 | ACOUSTIC WAVE DEVICE - An acoustic wave device includes a support substrate, a piezoelectric laminate, and first and second interdigital transducer electrodes. The piezoelectric laminate includes an intermediate layer provided directly or indirectly on the support substrate and a piezoelectric thin film provided on the intermediate layer. The first and second interdigital transducer electrodes are provided on the piezoelectric thin film of the piezoelectric laminate so as to be disposed in an identical or substantially identical plane. In the piezoelectric laminate, a thickness of a portion where the first interdigital transducer electrode is provided is different from a thickness of a portion where the second interdigital transducer electrode is provided. | 2017-12-28 |
20170373664 | PIEZOELECTRIC VIBRATION DEVICE AND METHOD FOR MANUFACTURING THE SAME - A piezoelectric vibration device that includes a piezoelectric vibrator having excitation electrodes formed thereon; a base having the piezoelectric vibrator on a first surface thereof; outer electrodes formed to continuously extend from the first surface of the base through a side face of the base to a second surface of the base opposite the first surface; and a lid having a recess opening that faces the first surface of the base, the lid being joined to the base to hermetically seal the piezoelectric vibrator in an internal space defined by the recess and the base. An edge portion of a corresponding one of the outer electrodes, formed by the first surface and the side face of the base, is at least partly covered by a covering member having insulating properties. | 2017-12-28 |
20170373665 | BULK ACOUSTIC WAVE RESONATOR AND FILTER INCLUDING THE SAME - A bulk acoustic wave resonator includes a substrate, a first electrode and a second electrode formed on the substrate, and a piezoelectric layer provided between the first electrode and the second electrode. Either one or both of the first electrode and the second electrode include a molybdenum-tungsten alloy having a weight ratio of molybdenum to tungsten in a range of 3:1 to 1:3. | 2017-12-28 |
20170373666 | SURFACE ACOUSTIC WAVE FILTER, DUPLEXER, AND MULTIPLEXER - In a surface acoustic wave filter, a parallel arm resonator includes an IDT electrode and reflectors. Comb-shaped electrodes of the IDT electrode each include a busbar electrode and electrode fingers connected thereto, and are arranged so that the electrode fingers of the respective comb-shaped electrodes are alternately located in a propagation direction of a surface acoustic wave. The reflectors are provided on both sides of the IDT electrode portion in the propagation direction of the surface acoustic wave so that reflector electrode fingers are parallel or substantially parallel to the electrode fingers. A distance between the electrode finger and the reflector electrode finger which are proximate to each other is about 10% or more and about 20% or less of a main pitch of the electrode fingers. | 2017-12-28 |
20170373667 | ELASTIC WAVE DEVICE - An elastic wave device includes a piezoelectric substrate, IDT electrodes disposed on the piezoelectric substrate, a first wiring line, an insulating layer covering at least a portion of the first wiring line, a second wiring line at least a portion of which is disposed on the insulating layer to provide a three-dimensional crossing portion, a peripheral support including a cavity surrounding the IDT electrodes, the first and second wiring lines, and the insulating layer, a partition support disposed in the cavity, and a cover disposed on the peripheral support and the partition support to cover the cavity. The second wiring line includes a step portion electrically connecting a portion of the second wiring line located on the piezoelectric substrate and a portion of the second wiring line located on the insulating layer to each other. The partition support covers the step portion. | 2017-12-28 |
20170373668 | FILTER AND MULTIPLEXER - A filter includes: one or more series resonators connected in series between an input terminal and an output terminal, the one or more series resonators including a series resonator located closest to the output terminal, the series resonator located closest to the output terminal having a resonant frequency that is 99.6% or less of or 102.2% or greater of a center frequency of a passband; one or more parallel resonators connected in parallel between the input terminal and the output terminal; and an inductor connected in parallel to the series resonator located closest to the output terminal. | 2017-12-28 |
20170373669 | ACOUSTIC WAVE RESONATOR, FILTER, AND MULTIPLEXER - An acoustic wave resonator includes: a piezoelectric substrate; and a pair of grating electrodes that is formed on the piezoelectric substrate, one of the pair of grating electrodes including a plurality of first electrode fingers having electric potentials equal to each other, another of the pair of grating electrodes including a plurality of second electrode fingers having electric potentials that differ from the electric potentials of the plurality of first electrode fingers and are equal to each other, two second electrode fingers of the plurality of second electrode fingers being located between at least a pair of adjacent first electrode fingers of the plurality of first electrode fingers, Pg differing from λ/4 where λ represents a wavelength of an acoustic wave excited by the plurality of first electrode fingers and the plurality of second electrode fingers and Pg represents a distance between centers of the two second electrode fingers. | 2017-12-28 |
20170373670 | ELASTIC WAVE APPARATUS - An elastic wave apparatus includes a piezoelectric substrate including a main surface and a polarization axis direction having a tilt angle with respect to the main surface, an IDT electrode provided on the main surface, and at least one line on the main surface and between an end edge of the main surface and the IDT electrode. A relationship a≦316|cos(θ)|μm is satisfied where a denotes a distance from the end edge of the main surface to the IDT electrode and b≧28 μm where a dimension of the line along a direction connecting the end edge to the IDT electrode is defined as a width, b denotes the width of the line when one line is provided, and b denotes the sum of the widths of multiple lines when the multiple lines are provided. | 2017-12-28 |
20170373671 | ELECTRONIC TUNING SYSTEM - A system is described for maintaining an inductive-capacitive (LC) network at resonance while the excitation frequency may be varied between a number of discrete frequencies at desired instants controlled by a modulation input, while taking into account component parameter errors due environmental and ageing as well as manufacturing tolerances. Control of the resonance while the excitation frequency changes permits the transmission of frequency modulation (FM) or frequency shift keying (FSK) information through an inductively coupled power transfer system. | 2017-12-28 |
20170373672 | GENERATOR OF POWERFUL NANOSECOND PULSES (VARIANTS) - A generator includes a series-connected inductive energy store and a superfast drift step recovery diode, as well as a load connected in parallel to the drift step recovery diode and switches. The switches are arranged in series, and the inductive energy storage device is connected to the point of connection of the switches therebetween and adjusting the amplitude of the pulses on the load by changing the closing and opening times of the switches. The moment of closing of the second switch is in the time interval between the opening of the first switch and changing of the polarity of the current through the inductive storage, wherein the time of its opening is in the interval of time from the beginning of the pulse formation on the load until the next closure of the first switch. | 2017-12-28 |
20170373673 | PULSE GENERATOR AND DRIVING CIRCUIT COMPRISING THE SAME - A pulse generator includes a first inverter configured to inverse an input pulse and output a result, a second inverter configured to inverse the output of the first inverter and output a result, a clamp inverter configured to generate a clamping voltage by clamping the output of the second inverter and generate an output pulse through a source follower which operates according to the clamping voltage, and a temperature compensator configured to compensate for variations in the clamping voltage caused by temperature change. | 2017-12-28 |
20170373674 | DIGITAL CONTROLLED OSCILLATOR BASED CLOCK GENERATOR FOR MULTI-CHANNEL DESIGN - A clock divider includes, in part, a pair of counters and a programmable delay line. A first one of the counters operates at a first frequency and is configured to count using a first integer portion of the divisor. The second counter operates at a second frequency smaller than the first frequency and is configured to count using a second integer portion of the divisor. The programmable delay line includes, in part, a chain of delay elements configured to generate a multitude of delays of the output of the second counter. A multiplexer selects one of the generated delays in accordance with the fractional portion of the divisor. The second counter increases its count only when the first counter reaches a terminal count. The first and second integer portions are loaded respectively into the first and second counters when the second counter reaches its terminal count. | 2017-12-28 |
20170373675 | METHOD AND APPARATUS FOR PHASE-ALIGNED 2X FREQUENCY CLOCK GENERATION - One embodiment relates to a multiple-channel serializer circuit that includes a plurality of one-channel serializers. A one-channel serializer of the plurality of one-channel serializes includes a local 2× frequency clock generator with a non-divider structure. Other embodiments relate to methods of using a non-divider circuit to generate a local 2× frequency clock signal in a one-channel serializer of a multiple-channel serializer. Another embodiment relates to a local 2× frequency clock generator circuit with a non-divider structure. The local 2× frequency clock generator circuit includes a first circuit path which is selected by multiplexers for a first serialization ratio and may also include a second circuit path which is selected by the multiplexers for a second serialization ratio. Other embodiments and features are also disclosed. | 2017-12-28 |
20170373676 | DRIVE DEVICE AND POWER SUPPLY SYSTEM - The present invention provides a drive device and a power supply system capable of driving a power transistor with low power while reflecting variations in manufacture process and external environments. A trigger detection circuit monitors a voltage between terminals or a current between terminals in a switching period of a power transistor and detects that the voltage between terminals or the current between terminals reaches a predetermined reference value. A current switching circuit selects a register outputting a current value to a variable current driver circuit from a plurality of registers and switches the register to be selected using a detection result of the trigger detection circuit as a trigger in the switching period, thereby making the drive current of the variable current driver circuit shift. | 2017-12-28 |
20170373677 | SWITCHING ELEMENT DRIVE CIRCUIT - A switching element drive circuit that drives a main switching element by providing a control terminal of the main switching element with a drive signal that has asymmetric positive and negative potentials with respect to a reference potential, the main switching element including a ground terminal, which is a source terminal or an emitter terminal, and to which the reference potential is connected. | 2017-12-28 |
20170373678 | SWITCH DEVICE - A switch is provided having a switch transistor as well as a monitoring component to monitor a control signal applied to the switch transistor. With the monitoring component, in some implementation a monitoring of the control signal independent from a load path may be possible. | 2017-12-28 |
20170373679 | IGBT HAVING IMPROVED CLAMP ARRANGEMENT - In one embodiment, an insulated gate bipolar transistor (IGBT) device may include an NMOS portion and a PNP portion, where the PNP portion is coupled to the NMOS portion. The PNP portion may include a base and a collector. The IGBT may further include a flyback clamp, where the flyback clamp is coupled between the base and the collector of the PNP portion. | 2017-12-28 |
20170373680 | Switch - A switch includes an input terminal, an output terminal, and a stack including transistors, such as, for example, field effect transistors, coupled in series, the stack being coupled between the input terminal and the output terminal. The switch also includes at least one switching element configured to be selectively operated in a conducting state or a non-conducting state, and at least one overvoltage protection element coupled to the stack by the at least one switching element. By way of example, the switch can implement a radio-frequency switch. | 2017-12-28 |
20170373681 | Robust Safe Switch - The Robust Safe Switch and Control Device is an “Internet of Things” end effecter that provides a minimally dissipating, robust switch tightly integrated with circuit, life and property automated safety features. The device enables extended sensing and monitoring capabilities that enable the effective management of the “Internet of Things.” | 2017-12-28 |
20170373682 | Gate Driver that Drives with a Sequence of Gate Resistances - A gate driver integrated circuit for driving a gate of an IGBT or MOSFET receives an input signal. In response to a rising edge of the input signal, the integrated circuit causes the gate to be driven in a first sequence of time periods. In each period, the gate is driven high (pulled up) via a corresponding one of a plurality of different effective gate resistances. In response to a falling edge of the input signal, the integrated circuit causes the gate to be driven in a second sequence of time periods. In each period, the gate is driven low (pulled down) via a corresponding one of the different effective gate resistances. In one example, the duration of each time period is set by a corresponding external passive circuit component. The different effective gate resistances are set by external gate resistors disposed between the integrated circuit and the gate. | 2017-12-28 |
20170373683 | CONTROL CIRCUIT AND CONTROL METHOD FOR TURNING ON A POWER SEMICONDUCTOR SWITCH - A control circuit for turning on a power semiconductor switch includes an input that receives a signal characterizing a switch-on behavior of the power semiconductor switch. A phase detection circuit detects two or more phases of the switch-on behavior of the power semiconductor switch in response to the signal that characterizes the switch-on behavior of the power semiconductor switch. The phase detection circuit is coupled to generate a phase signal that indicates which of the two or more phases the power semiconductor switch is currently running through. A variable current source is coupled to supply a current with a variable level to a control input of the power semiconductor switch to switch on the power semiconductor switch. The control circuit is coupled to control the variable current source in a closed control loop in response to the signal that characterizes the switch-on behavior of the power semiconductor switch. | 2017-12-28 |
20170373684 | HIGH RELIABILITY AC LOAD SWITCHING CIRCUIT - A high reliability AC load switching circuit is disclosed. In some embodiments, the AC load switching circuit includes a high-speed switch connected between the load and the voltage source, a cutoff switch connected between the load and the voltage source in parallel with the high-speed switch, and a level detector connected to the voltage source and to a control input of the high-speed switch. The high-speed switch may be a solid-state switch, for example, a TRIAC or a bidirectional switch, and the cutoff switch may be an electromechanical switch, for example, a relay. In some embodiments a snubber is connected in parallel with a solid-state switch. In some embodiments a microcontroller is connected to an eletromechanical switch and the level detector. In some embodiments, both a first cutoff switch and a second cutoff switch are used. | 2017-12-28 |
20170373685 | DUAL GATE SWITCH DEVICE - Switch devices using switch transistors with dual gates are provided. The dual gates may be controlled independently from each other by first and second gate driver circuits. | 2017-12-28 |
20170373686 | CAPACITIVE SENSOR - A capacitive sensor that includes: a sensing electrode having a capacitance to be measured; an alternating voltage source, configured to apply an alternating voltage to the sensing electrode; a capacitive first transfer device; a measurement circuit configured to measure the capacitance of the sensing electrode; and a switching arrangement. The switching arrangement is configured to alternately, in a first switching state, connect the first transfer device to the sensing electrode to enable a charge transfer from the sensing electrode to the first transfer device and, in a second switching state, connect the first transfer device to the measurement circuit to enable a charge transfer from the first transfer device to the measurement circuit. | 2017-12-28 |
20170373687 | SWITCHING CONTROL ARRANGEMENT - The invention relates to a switching control arrangement, in particular for a motor vehicle, having a movable actuating surface. The actuating surface interacts with a displacement means in such a way that the actuating surface can be moved substantially linearly, over at least one distance, out of an initial position and into an actuating position. The displacement means has at least one elastic element arranged so as to be clamped in place. The actuating position can be designed as a switching position, such that the actuating surface, when in the switching position, has a switching effect on a switching element, a sensor, or the like. The elastic element is designed as a planar element with a small thickness in the form of a membrane, such that it is possible for the elastic element to be elastically deflected substantially perpendicularly to the surface of the membrane. | 2017-12-28 |
20170373688 | ELECTRONIC DEVICE - An electronic device includes: a first housing and a second housing provided to be capable of being displaced between a first state in which the first major surfaces thereof face each other and a second state in which the second major surfaces thereof face each other; a magnetic detection part provided in the first housing; a magnet provided in the second housing; and a control part configured to determine the first state and the second state based on an output of the magnetic detection part. The magnet is disposed such that a magnetization direction thereof is orthogonal to the first major surface and the second major surface of the second housing, and the magnetic detection part includes a first magnetic sensor and a second magnetic sensor arranged along a direction normal to the first major surface and the second major surface of the first housing. | 2017-12-28 |
20170373689 | STANDARD CELL ARCHITECTURE FOR REDUCED PARASITIC RESISTANCE AND IMPROVED DATAPATH SPEED - A MOS device may include a first logic component with a first input located on a second track and a first output located on the third track. The MOS device may include a second logic component with a second input located on the fourth track and a second output located on a fifth track. For example, the MOS device includes a first interconnect on a M | 2017-12-28 |
20170373690 | APPARATUS AND METHODS FOR ON-DIE TEMPERATURE SENSING TO IMPROVE FPGA PERFORMANCE - A field programmable gate array (FPGA) includes a temperature sensor array. The FPGA also includes a supply voltage modulation circuit. The supply voltage modulation circuit is coupled to the temperature sensor array. | 2017-12-28 |
20170373691 | LEVEL SHIFTER AND A METHOD FOR SHIFTING VOLTAGE LEVEL - A level shifter comprises a first control switch ( | 2017-12-28 |
20170373692 | CIRCUIT FOR AND METHOD OF IMPLEMENTING A SCAN CHAIN IN PROGRAMMABLE RESOURCES OF AN INTEGRATED CIRCUIT - A circuit for implementing a scan chain in programmable resources of an integrated circuit is described. The circuit comprises a programmable element configured to receive an input signal and generate an output signal based upon the input signal; a selection circuit configured to receive the output signal generated by the programmable element at a first input and to receive a scan chain input signal at a second input, wherein the selection circuit generates a selected output signal in response to a selection circuit control signal; and a register configured to receive the selected output signal of the selection circuit. | 2017-12-28 |
20170373693 | OSCILLATOR, ELECTRONIC APPARATUS, AND VEHICLE - An oscillator includes a first package, an oscillation element housed in the first package, a first temperature controller housed in the first package, a second package adapted to house the first package, and a second temperature controller disposed outside the first package, and housed in the second package. | 2017-12-28 |
20170373694 | FREQUENCY BASED BIAS VOLTAGE SCALING FOR PHASE LOCKED LOOPS - A phase locked loop system includes bias voltage adjustment circuitry and a voltage regulator that outputs a smoothed core voltage to an oscillator. The bias voltage adjustment circuitry is configured to compute a scaled bias voltage based at least on a target frequency for the oscillator. The voltage regulator is configured to input i) the scaled bias voltage and ii) a selected core voltage that is selected based on the target operating frequency of the oscillator and generate the smoothed core voltage for output to the oscillator | 2017-12-28 |
20170373695 | DIGITAL PHASE LOCKED LOOP FOR LOW JITTER APPLICATIONS - A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator. | 2017-12-28 |
20170373696 | Clock Alignment Scheme for Data Macros of DDR PHY - A master-slave delay locked loop system comprises a master delay locked loop (“MDLL”) and at least one slave delay locked loop (“SDLL”). The MDLL generates one or more biases. Each of the at least one SDLL has a slave calibration unit and slave delay elements. The slave calibration unit calibrates the slave delay elements using a slave calibration loop and the generated one or more bias. Thus, each of the SDLL is calibrated to account for any electrical noise, pressure, voltage, and temperature variations that the respective SDLL experiences. | 2017-12-28 |
20170373697 | PHASE FREQUENCY DETECTOR AND ACCURATE LOW JITTER HIGH FREQUENCY WIDE-BAND PHASE LOCK LOOP - A novel phase locked loop design utilizing novel phase-frequency detector, charge pump, loop filter and voltage controlled oscillator is disclosed. The phase-frequency detector includes a dual reset D-flip flop for use in multi-GHz phase locked loops. Traditional dead zone issues associated with phase frequency detector are improved/addressed by use with a charge transfer-based PLL charge pump. | 2017-12-28 |
20170373698 | TIME-TO-DIGITAL CONVERTER AND DIGITAL PHASE LOCKED LOOP - A time-to-digital converter including N stages of converting circuits, where N≧2, and N is an integer. Each stage of converting circuit includes a first delayer and an arbiter; an output end of the first delayer in each stage of converting circuit outputs a delayed signal of the stage of converting circuit; and the arbiter in each stage of converting circuit receives a sampling clock and the delayed signal of the stage of converting circuit, and compares the sampling clock with the delayed signal to obtain an output signal of the stage of converting circuit. Output signals of the N stages of converting circuits form a non-linear binary number, to indicate a time difference between a clock signal and a reference signal. | 2017-12-28 |
20170373699 | Analog-To-Digital Converter Protection Circuit, Method for Controlling Analog-To-Digital Converter Protection Circuit, and Controller - An analog-to-digital converter protection circuit, a method for controlling an analog-to-digital converter protection circuit, and a controller are disclosed. The analog-to-digital converter protection circuit includes: an analog switch, an analog-to-digital converter, a controller, and a series circuit including at least two resistors connected in series. The controller is configured to: when the digital voltage is greater than or equal to a preset voltage threshold, output a control signal to the analog switch, to trigger the analog switch to control to a second sampling end from a first sampling end to serve as the conduction sampling end to conduct to the output end of the analog switch, where an analog voltage sampled by the second sampling end is less than an analog voltage sampled by the first sampling end; and when the digital voltage is less than the preset voltage threshold, output the digital voltage. | 2017-12-28 |
20170373700 | ANALOG TO DIGITAL COMPUTATIONS IN BIOLOGICAL SYSTEMS - Aspects of the present disclosure relate to analog signal processing circuits and methods for cellular computation. | 2017-12-28 |
20170373701 | SAMPLING CLOCK GENERATING CIRCUIT AND ANALOG TO DIGITAL CONVERTER - A sampling clock generating circuit and an analog to digital converter includes a resistance variable circuit, a NOT-gate type circuit, and a capacitor, where an input end of the NOT-gate type circuit receives a pulse signal whose period is T; an output end of the NOT-gate type circuit is connected to one end of the capacitor; the other end of the capacitor is grounded; a power supply terminal of the NOT-gate type circuit is connected to a power supply; a ground terminal of the NOT-gate type circuit is connected to one end of the resistance variable circuit; and the other end of the resistance variable circuit is grounded; the NOT-gate type circuit is configured to: when the pulse signal is a high level, output a low level; and when the pulse signal is a low level, output a high level. | 2017-12-28 |
20170373702 | DATA COMPRESSION DEVICE AND DATA DECOMPRESSION DEVICE - A data compression device includes a processor configured to extract delimiter characters and character strings from compression target data. The character strings each are sandwiched between two of the delimiter characters in the compression target data. The processor is configured to generate first data by arranging the delimiter characters to allow an order in which the delimiter characters occur in the compression target data to be identified. The processor is configured to generate second data by arranging the character strings for each type of combination of two of the delimiter characters, which sandwich each of the character strings in the compression target data, to allow an order in which the character strings occur in the compression target data to be identified. The processor is configured to perform compression on the first data and the second data. The processor is configured to output a result of the compression. | 2017-12-28 |
20170373703 | ERROR CORRECTION CODE (ECC) OPERATIONS IN MEMORY - Apparatuses and methods for performing an error correction code (ECC) operation are provided. One example method can include generating a codeword based on a number of low density parity check (LDPC) codewords failing a LDPC decoding operation and performing a BCH decoding operation on the codeword. | 2017-12-28 |
20170373704 | OPTICAL TRANSMITTER, OPTICAL COMMUNICATION SYSTEM, AND OPTICAL COMMUNICATION METHOD - If a configuration is employed in which modulation schemes used for an optical communication system can be switched depending on transmission conditions, it is difficult to make effective utilization of frequency resources without the power consumption increasing and the control becoming complex; therefore, an optical transmitter according to an exemplary aspect of the present invention includes an interface means for converting a digital signal to be transmitted under a predetermined transmission condition over an optical carrier wave into a parallel signal with a predetermined bit number at a predetermined transmission rate, and outputting the parallel signal; an encoding means for encoding the parallel signal using one coding system from among a plurality of convolutional coding systems with different degrees of redundancy; a mapping means for mapping an output bit signal output from the encoding means to a modulation symbol; an optical modulation means for modulating the optical carrier wave based on a symbol signal output from the mapping means; and an encoding control means for selecting a predetermined coding system corresponding to the predetermined transmission condition from among the plurality of convolutional coding systems and controlling the interface means, the encoding means, the mapping means, and the optical modulation means in such a way as to operate in accordance with the predetermined coding system. | 2017-12-28 |
20170373705 | APPARATUSES AND METHODS FOR ERASURE-ASSISTED ECC DECODING - One example of erasure-assisted error correction code (ECC) decoding can include reading a codeword with a first trim level, reading the codeword with a second trim level, and reading the codeword with a third trim level. A first result from reading the codeword with the first trim level, a second result from reading the codeword with the second trim level, and a third result from reading the codeword with the third trim level can be accumulated. An erasure of a detected unit sequence can be computed. The detected unit sequence can be modified by changing a unit in a position of the detected unit sequence corresponding to a position of the erasure. The modified detected unit sequence can be ECC decoded. | 2017-12-28 |
20170373706 | DATA DEPENDENCY MITIGATION IN PARALLEL DECODERS FOR FLASH STORAGE - A memory device can include a memory array, a processor coupled to the memory array, and a decoding apparatus. The decoding apparatus is configured to perform parallel decoding of codewords. Each of the codewords has a plurality of data blocks, each data block having a number of data bits. The decoding apparatus is configured to decode in parallel two or more codewords, which share a common data block, to determine error information associated with each codeword. For each error, the error information identifies a data block having the and associated error bit patterns. The decoding apparatus is configured to update the two or more codewords based on the identified data blocks having errors and the associated error bit patterns. | 2017-12-28 |
20170373707 | TRANSMISSION DEVICE, RECEPTION DEVICE, BROADCAST SIGNAL PROCESSING METHOD, AND BROADCAST RECEIVER - A transmission device includes a first converter, a second converter, a generation component, and a transmitter. The first converter converts a first analog signal, which is a broadcast signal of a specific polarity, into a first digital signal. The second converter converts a second analog signal, which is a broadcast signal whose polarity is different from the specific polarity, into a second digital signal. The generation component generates a third digital signal that includes information of the first and second digital signals. The transmitter transmits the third digital signal generated by the generation component. | 2017-12-28 |
20170373708 | RELAY APPARATUS, RELAY SYSTEM, AND RELAY METHOD - A relay apparatus comprises:
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20170373709 | TIME TO DIGITAL CONVERTER, RADIO COMMUNICATION DEVICE, AND RADIO COMMUNICATION METHOD - A time to digital converter has a counter, a first phase difference detector, a first capacitor, a second capacitor having capacitance N times a capacitance of the first capacitor, a comparator to compare a charge voltage of the first capacitor with a charge voltage of the second capacitor, a first charge controller, a first phase difference arithmetic unit, a second phase difference detector, a second charge controller, a second phase difference arithmetic unit to operate the phase difference between the first signal and the second signal, and a third phase difference arithmetic unit to detect a fractional phase difference between the first signal and the second signal. The first phase difference arithmetic unit operates the phase difference between the first signal and the second signal, based on a reference phase, when the counter suspends a measurement operation. | 2017-12-28 |
20170373710 | WIRELESS COMMUNICATION RECEIVER - Provided is a wireless communication receiver including an antenna for receiving an RF signal; a first mixer, coupled to the antenna, for performing frequency conversion on the RF signal from the antenna by mixing the RF signal with a local oscillator signal to provide a first intermediate frequency (IF) signal; and a first filter, coupled to the first mixer, configured to pass a predetermined band of frequencies of the first IF signal and to generate a first channel signal. The first filter includes a negative feedback loop coupled to the first mixer for performing negative feedback loop control on the first IF signal; and a positive capacitive feedback loop coupled to the first mixer for performing positive capacitive feedback loop control on the first IF signal, the negative feedback loop and the positive capacitive feedback loop being coupled in parallel. | 2017-12-28 |
20170373711 | CARD HOLDING MEMBER AND CARD CONNECTOR - The card holding member is able to hold a card including terminal members and is able to be inserted into a card connector, and comprises a frame portion opposing the side surfaces of the card, and a movable lock portion arranged in the frame portion which is able to engage and disengage from a lock portion of the card connector, the movable lock portion being a spring member made of a metal plate and including at least one corner portion, and the movable lock portion also being elastically deformable in the width direction of the card holding member. | 2017-12-28 |
20170373712 | METHOD OF SWITCHING ANTENNA FOR REDUCING SPECIFIC ABSORPTION RATE AND ELECTRONIC DEVICE SUPPORTING THE SAME - An electronic device and method are provided for switching an antenna for SAR reduction. The method includes sequentially switching, based on a predetermined schedule, a plurality of antennas having different main emission directions, when transmitting a wireless signal. | 2017-12-28 |
20170373713 | Apparatus to assist a user with holding a mobile device - An apparatus that facilitates one-handed use of a mobile device has a finger brace configured to brace a user's finger on each of two opposed sides of the point where it is coupled to a flexible member. The flexible member extends through a hole in the back portion of the mobile device's case and is anchored to an interior surface of the back portion of the case. The flexible member's length is such that two fingers of the user's hand can press against the finger brace to brace the mobile device when the two fingers are between the finger brace and the case. | 2017-12-28 |
20170373714 | Systems and Methods for Die-to-Die Communication - Systems and methods for die-to-die communication are provided. A first transceiver disposed on a first die includes a transmission section configured to modulate first data onto a carrier signal having a first frequency. The first transceiver includes a reception section configured to receive signals from a transmission line. The reception section includes a filter configured to pass frequencies within a first passband that includes a second frequency. The first frequency is outside of the first passband. A second transceiver is disposed on a second die and is configured to communicate with the first transceiver via the transmission line. The second transceiver includes a transmission section configured to modulate second data onto a carrier signal having the second frequency. The second transceiver includes a reception section including a filter configured to pass frequencies within a second passband that includes the first frequency. The second frequency is outside of the second passband. | 2017-12-28 |
20170373715 | RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD - The present invention is designed so that the decrease of spectral efficiency can be reduced even when coverage enhancement is attempted in communication by user terminals in which the bandwidth to use is limited to partial reduced bandwidths in a system bandwidth. A radio base station communicates with a user terminal in which the bandwidth to use is limited to partial reduced bandwidths in a system bandwidth, and this radio base station has a transmission section that transmits a downlink signal to the user terminal in repetitions, and a control section that controls transmission by applying a transmission method to use frequency hopping or a transmission method to use frequency scheduling to the downlink signal, and the transmission section transmits information about the transmission method to apply to the downlink signal to the user terminal. | 2017-12-28 |
20170373716 | System and Method for Reducing Interference in OFDM Channels - A system and method for signal processing in a cable modem termination system (CMTS) is provided. A CMTS receiver in communication with a plurality of cable modems at a upstream signal or a cable modem receiver in communication with the CMTS at a downstream signal. A plurality of ATDMA channel processors include a filter for recovering an ATDMA signal and a OFDM channel processor includes a filter for processing a combined OFDM and ATDMA signal. A summation module subtracts the ATDMA signal from the combined ATDMA and OFDM signal to obtain a clean OFDM signal. | 2017-12-28 |
20170373717 | METHOD AND APPARATUS FOR TRANSMITTING ELECTROMAGNETIC WAVES - Aspects of the subject disclosure may include, for example, an apparatus including a waveguide, an antenna, and a transmitter. The transmitter can facilitate transmission of first electromagnetic waves via the antenna, the first electromagnetic waves having a fundamental mode. The waveguide can facilitate propagation of the first electromagnetic waves at least in part on a surface of the waveguide. The waveguide can be positioned at a location that enables the first electromagnetic waves to induce second electromagnetic waves having fundamental and non-fundamental modes that propagate on a surface of a transmission medium. Other embodiments are disclosed. | 2017-12-28 |
20170373718 | METHOD AND APPARATUS FOR CONFIGURING A COMMUNICATION INTERFACE - Aspects of the subject disclosure may include, for example, a system for exchanging electrical signals and guided electromagnetic waves between customer premises equipment and service provider equipment to provide uplink and/or downlink communication services. Other embodiments are disclosed. | 2017-12-28 |
20170373719 | BLUETOOTH PAIRING METHOD - There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel. | 2017-12-28 |
20170373720 | METHOD AND APPARATUS FOR TRANSMITTING OR RECEIVING SIGNALS IN A TRANSPORTATION SYSTEM - Aspects of the subject disclosure may include, for example, a system for transmitting first electromagnetic waves that propagate on a surface of a component of a transit system, and receiving second electromagnetic waves that propagate on the surface of the component of the transit system. Other embodiments are disclosed. | 2017-12-28 |
20170373721 | PASSIVE ELECTRICAL COUPLING DEVICE AND METHODS FOR USE THEREWITH - Aspects of the subject disclosure may include, for example, a coupling device includes a circuit that receives a signal. At least one passive electrical circuit element generates an electromagnetic field in response to the signal. A portion of the electromagnetic field is guided by a surface of a transmission medium to propagate as a guided electromagnetic wave longitudinally along the transmission medium. Other embodiments are disclosed. | 2017-12-28 |
20170373722 | RECEIVER CIRCUIT - An analog receiver frontend includes a first amplification circuit coupled to receive an input signal. The first amplification stage is coupled to amplify a difference between the input signal and a threshold to generate the first signal. A second amplification circuit is coupled to receive the first signal from the first amplification circuit. The second amplification circuit is coupled to amplify the first signal to generate a second signal. An output circuit is coupled to receive the second signal from the second amplification circuit. The output circuit is coupled to output a recovered signal. The recovered signal is a pulse waveform of high and low sections. An input hysteresis circuit is coupled to the output circuit to receive the recovered signal and generate a hysteresis signal. One or both of the input signal and the threshold are level shifted by the hysteresis signal in response to the recovered signal. | 2017-12-28 |
20170373723 | DOOR LOCK AND ARRANGEMENT FOR TRANSFERRING POWER TO DOOR LOCK - Lock arrangement and method for transferring electrical power with a lock arrangement that includes a counterpart of the lock and an electrical lock including a lock case. A device for wirelessly sending electrical power to the lock case and/or into connection with the lock case is arranged in connection with the counterpart of the lock, and arranged in the lock case and/or in connection with the lock case are a device for wirelessly receiving electrical power from the device for sending electrical power that is arranged in connection with the counterpart of the lock. The counterpart of the lock wirelessly sends electrical power to the lock case and/or into connection with the lock case with the device that is for sending electrical power, and the lock case wirelessly receives electrical power from the counterpart of the lock with the device that is for receiving electrical power, when the lock and the counterpart of the lock are at a certain distance from each other. The electrical power received from the connection of the lock is measured and the power level of the electrical power sent is increased and/or decreased in such a way that the measured level of the electrical power received is between certain predetermined upper and lower values or essentially at a given preset level. | 2017-12-28 |
20170373724 | METHOD FOR WIRELESS TRANSMISSION OF DATA TO A MAGNETIC READ HEAD, CORRESPONDING COMMUNICATIONS TERMINAL AND CORRESPONDING PROGRAM - A mobile communications terminal, namely a terminal of the type having a screen, at least one radio communications component and at least one wireless charging terminal. The terminal furthermore includes a component for transmitting an F2F signal by using the at least one wireless charging coil. | 2017-12-28 |
20170373725 | CONTROL METHOD FOR WIRELESS POWER TRANSFER APPARATUS CONSIDERING INTERFERENCE IN WIRELESS POWERED COMMUNICATION NETWORKS, AND WIRELESS POWER TRANSFER APPARATUS - Provided are a control method for a wireless power transfer apparatus considering interference in wireless powered communication networks, and a wireless power transfer apparatus. The control method of the wireless power transfer apparatus includes: performing, by at least one wireless power transfer apparatus, a distributed coordination function (DCF) based contention process with at least one wireless communication terminal; and transmitting, by the wireless power transfer apparatus which won in the DCF based contention process, an energy frame to the at least one wireless communication terminal. | 2017-12-28 |
20170373726 | RECEIVER AND COMMUNICATION SYSTEM - A receiver of the disclosure includes: a load modulator that transmits an active load modulation signal generated by active load modulation to a reader writer, in response to a carrier signal transmitted from the reader writer; and a controller that determines whether the active load modulation signal has reached the reader writer, and controls the load modulator to retransmit the active load modulation signal, after changing a phase of the active load modulation signal with respect to the carrier signal, in a case where the controller determines that the active load modulation signal has not reached the reader writer. | 2017-12-28 |
20170373727 | BASE STATION ROUTER FOR DISTRIBUTED ANTENNA SYSTEMS - Certain aspects are directed to a base station router disposed in a distributed antenna system. The base station router includes a backplane and a controller. The backplane can manage an availability of sectors for coverage zones. Each sector can include communication channels to be radiated to mobile devices in the coverage zones and can represent an amount of telecommunication capacity. The controller can respond to a traffic indicator by causing the backplane to redistribute the availability of at least one sector. The sector can be redistributed from a first coverage zone to a second coverage zone. | 2017-12-28 |
20170373728 | CONNECTION FAILURE DETECTION IN WIRELESS NETWORK BASED ON COORDINATED MULTI-CELL COMMUNICATION TECHNIQUE - An example technique is provided that includes establishing a multi-cell communication session for a user device, the multi-cell communication session including a plurality of wireless connections that include a wireless connection between the user device and each of a plurality of cells in a same frequency layer, wherein the plurality of cells are used to transmit data to or receive data from the user device using a coordinated multi-cell communication technique, and performing, by the user device, communication session failure detection for the multi-cell communication session taking into account signal gains provided by the coordinated multi-cell communication technique. | 2017-12-28 |
20170373729 | SYSTEMS AND METHODS TO ENHANCE SPATIAL DIVERSITY IN DISTRIBUTED-INPUT DISTRIBUTED-OUTPUT WIRELESS SYSTEMS - Systems and methods are described for enhancing the channel spatial diversity in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”), by exploiting channel selectivity indicators. The proposed methods are: i) antenna selection; ii) user selection; iii) transmit power balancing. All three methods, or any combination of those, are shown to provide significant performance gains in DIDO systems in practical propagation scenarios. | 2017-12-28 |
20170373730 | FRONT-END ARCHITECTURES FOR MULTIPLE ANTENNAS - Front-end architectures for multiple antennas. In some embodiments, a front-end architecture for wireless application can include a first mid-band amplifier system configured to amplify transmit and receive signals in a first mid-band. The front-end architecture can further include a second mid-band amplifier system configured to amplify at least a transmit signal in a second mid-band, such that the front-end architecture is capable of simultaneous uplink operations in the first mid-band and the second mid-band. | 2017-12-28 |
20170373731 | METHOD AND APPARATUS FOR PERFORMING UE BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM - A method for a wireless communications system is disclosed. In one example, a user equipment (UE) (e.g. a mobile phone), receives an indication from a network about one or more UE beams that the UE can use for transmission or reception. The UE uses the one or more UE beams for transmission or reception. If and when a certain condition is fulfilled, for example, there is a beam tracking failure, the UE transmits or receives a specific signal via a specific UE beam. The specific UE beam is different from the one or more UE beams that were indicated by the network, and is selected by the UE. | 2017-12-28 |
20170373732 | FEEDBACK SCHEME FOR MU-MIMO - Embodiments of a system and method for managing feedback in a MU-MIMO system. An access point can announce one or more of mobile stations that are to receive downlink information in a first frame. The access point can also send a sounding package to the one or more mobile stations and receive feedback from the one or more mobile stations according to the feedback schedule. The feedback may be based on the reception of the sounding package. | 2017-12-28 |
20170373733 | 4TX CODEBOOK ENHANCEMENT IN LTE - Channel state information (CSI) feedback in a wireless communication system is disclosed. A precoding matrix is generated for multi-antenna transmission based on precoding matrix indicator (PMI) feedback, wherein the PMI indicates a choice of precoding matrix derived from a matrix multiplication of two matrices from a first codebook and a second codebook. In one embodiment, the first codebook comprises at least a first precoding matrix constructed with a first group of adjacent Discrete-Fourier-Transform (DFT) vectors. In another embodiment, the first codebook comprises at least a second precoding matrix constructed with a second group of uniformly distributed non-adjacent DFT vectors. In yet another embodiment, the first codebook comprises at least a first precoding matrix and a second precoding matrix, where said first precoding matrix is constructed with a first group of adjacent DFT vectors, and said second precoding matrix is constructed with a second group of uniformly distributed non-adjacent DFT vectors. | 2017-12-28 |
20170373734 | Method and Apparatus for Measuring and Feeding Back Channel Information - A method and an apparatus for measuring and feeding back channel information are disclosed. In an embodiment the method includes receiving, by a first network device, a reference signal and measuring the reference signal to obtain a measurement result. The method further includes selecting a first codebook from a first codebook set according to the measurement result, wherein the first codebook set comprises at least two first codebooks, a sub-vector W | 2017-12-28 |
20170373735 | UPLINK MIMO COMMUNICATION METHOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - Disclosed is a method for supporting uplink multiple-input and multiple-output (MIMO) in a wireless communication system. A method for transmitting data according to the present invention comprises the steps of: mapping, to first orthogonal frequency division multiplexing (OFDM) symbols within a subframe, first demodulation reference signals (DMRSs) corresponding to a first antenna port and a second DMRSs corresponding to a second antenna port; mapping, to second OFDM symbols except the first OFDM symbols within the subframe, first data corresponding to the first antenna port and second data corresponding to the second antenna port; and transmitting the subframe by using resources allocated to the uplink, wherein predetermined precodings are applied to the first data and the second data, and the predetermined precodings may be changed according to the index of the second OFDM symbols. | 2017-12-28 |
20170373736 | INTEGRATED OFDMA AND EDCA CHANNEL ACCESS MECHANISM - Access to a wireless medium is made more flexible by combining the distributed access and central controlled access. A wireless device may be allowed to perform both orthogonal frequency-division multiple access (OFDMA) and enhanced distributed channel access (EDCA) channel access mechanisms at same time and start the channel access via a mechanism that allows a faster access to the channel. Depending on channel acquisition, the wireless device can use a multi-user format or a single-user format to transmit uplink anPLCP protocol data unit (PPDU). | 2017-12-28 |
20170373737 | BEAMFORMING IN A MU-MIMO WIRELESS COMMUNICATION SYSTEM - This invention provides methods for Distributed Massive MIMO (DM-MIMO) that use one or more central Baseband Units (BBUs), one or more Multi-User Beamformers for each BBU performing multi-user MIMO computations, and a number of RRHs distributed over a geographic area. | 2017-12-28 |
20170373738 | METHOD AND APPARATUS FOR GENERATING SIGNAL BY DEVICE-TO-DEVICE COMMUNICATION TERMINAL IN WIRELESS COMMUNICATION SYSTEM - An embodiment of the present invention provides a method for generating a device-to-device (D2D) signal by a terminal in a wireless communication system, the method for generating a D2D signal comprising: a step of mapping, onto one or more resource block (RB) groups, each of one or more modulation symbol groups generated from one or more transmission blocks; and a step for applying different beam vectors to each of the one or more RB groups, wherein the number of beam vectors is determined according to a channel state. | 2017-12-28 |
20170373739 | METHOD AND APPARATUS FOR UTILIZING UE (USER EQUIPMENT) BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus are disclosed for utilizing UE beamforming in a wireless communication system. In one embodiment, the method includes the UE performing measurement to obtain a measurement result associated with a cell. The method also includes the UE determining whether to use the UE beamforming in the cell at least based on the measurement result, wherein the UE uses the UE beamforming in the cell if the measurement result is worse than a first threshold. | 2017-12-28 |
20170373740 | METHOD AND APPARATUS FOR UE BEAMFORMING AND BEAM SWEEPING IN A WIRELESS COMMUNICATION SYSTEM - A method for a wireless communications system is disclosed. In one example, a user equipment (UE) device (e.g. a mobile phone) provides a UE beam sweeping number to a network node. Based on the UE beam sweeping number, the network node provides configuration information or allocates a resource to the UE device. The UE device can use the configuration information or the resource for measurement. The beam sweeping number refers to the number of time intervals that the UE device would need to generate multiple sets of UE beams, one set per time interval, that would cover all possible directions in which the UE device sends and/or receives transmissions, in a manner that resembles a sweeping of UE beams. | 2017-12-28 |
20170373741 | UPLINK CONTROL INFORMATION TRANSMITTING METHOD AND USER EQUIPMENT, AND UPLINK CONTROL INFORMATION RECEIVING METHOD AND BASE STATION - The present invention provides a method and device for transmitting/receiving an uplink signal. When an Scell group including only Scells is set for a user equipment of the present invention and one of the Scells included in the Scell group is set as a cell (hereinafter, “Acell”) in which a PUCCH can be transmitted, UCI of a particular cell group can be transmitted through a Pcell if the particular cell group is a Pcell group having the Pcell and can be transmitted through the Acell of the Scell group if the particular cell group is an Scell group. | 2017-12-28 |
20170373742 | METHODS AND SYSTEMS FOR TRANSMITTING INFORMATION ACROSS A MIMO CHANNEL FROM A TRANSMITTER TO A RECEIVER - A method of transmitting a plurality of data streams across a MIMO channel from a transmitter to a receiver, the transmitter comprising an array of antennas, the method comprising acquiring channel state information for a plurality of subcarrier frequencies, determining a mapping that defines, for each frequency, how each data stream is to be mapped to each antenna in the array, and for each antenna in the array, adjusting the power allocated to each data stream that is to be transmitted from the antenna, so as to maximise a measure of throughput; wherein for each data stream, the power allocated to transmitting that data stream at each frequency is greater than or equal to zero, and for each frequency, the power transmitted by any one antenna does not exceed a threshold, and for each data stream, the same power is allocated to each subcarrier used for transmitting that data stream. | 2017-12-28 |
20170373743 | METHOD FOR PERFORMING CHANNEL ESTIMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for performing, by a UE, channel estimation in a wireless communication system includes: receiving, from an eNB, a control message including reference signal transmission pattern information representing a transmission pattern of a channel estimation reference signal (RS) transmitted through antenna ports; receiving the reference signal from the eNB on the basis of the received reference signal transmission pattern information; measuring a channel per antenna port of the eNB on the basis of the received reference signal; and feeding back channel state information related to the measured channel to the eNB. | 2017-12-28 |
20170373744 | WIRELESS DEVICE, A NETWORK NODE AND METHODS THEREIN FOR DETERMINING CHANNEL STATE MEASUREMENTS IN A WIRELESS COMMUNICATIONS NETWORK - A method performed by a wireless device for determining channel state measurements in a wireless communications network is provided. The wireless device obtains at least two channel state measurements performed by the wireless device on measurement resources allocated for the at least two channel state measurements. The wireless device also receives information indicating how the wireless device is to combine the obtained at least two channel state measurements into at least one combined channel state measurement. Then, the wireless device determines at least one combined channel state measurement based on the received information and the obtained at least two channel state measurements. A wireless device for determining channel state measurements in a wireless communications network is also provided. Further, a network node and a method therein for enabling a wireless device to determine channel state measurements in a wireless communications network are also provided. | 2017-12-28 |
20170373745 | METHOD FOR PERFORMING PRE-CODING USING CODEBOOK IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for performing, by a UE, precoding using a codebook in a wireless communication system includes: receiving a reference signal for channel estimation from an eNB; estimating a channel through the received reference signal; determining a precoding matrix related to the estimated channel in a codebook; and feeding back, to the eNB, a precoding matrix index (PMI) corresponding to the determined precoding matrix, wherein the codebook is generated in consideration of at least one of a region to which the UE belongs and the position of the UE. | 2017-12-28 |
20170373746 | FLEXIBLE MULTI-CHANNEL AMPLIFIERS VIA WAVEFRONT MUXING TECHNIQUES - A power amplification system comprises a pre-processor including a wavefront multiplexer, a set of power amplifiers, and a post-processor including a wavefront demultiplexer. The wavefront multiplexer receives concurrently N input signals, N being an integer greater than 2, performs a wavefront multiplexing transform on the N input signals by attaching N wavefronts to the N input signals respectively, and generates N first output signals. The N wavefronts are unique and mutually orthogonal. The wavefront multiplexing transform has an inverse. The N power amplifiers amplify the N first output signals and generate N amplified signals. The wavefront demultiplexer performs the inverse of the wavefront multiplexing transform on the N amplified signals and generates N second output signals, the N second output signals corresponding respectively to the N input signals. Each of the N second output signals is an amplified version of a corresponding one of the N input signals. | 2017-12-28 |
20170373747 | FIBER OPTIC TELECOMMUNICATIONS CARD WITH ENERGY LEVEL MONITORING - A transceiver card for a telecommunications box for transmitting data over a first optical fiber and receiving data over a second optical fiber. The card has transmitter for transmitting data over the first optical fiber, the transmitter having a laser and a modulator, a fiber output optically connected to the laser for connecting the first optical fiber to the card, a fiber input for connecting the second optical fiber to the card, a receiver optically connected to the fiber input for receiving data from the second optical fiber, and an OTDR optically connected between the transmitter and the fiber output or between the receiver and the fiber input. An energy level detector is also provided between the receiver and the fiber input. | 2017-12-28 |
20170373748 | METHOD AND APPARATUS FOR PROVIDING A PILOT TONE - The disclosure is directed at a method and system for optical telecommunications performance monitoring via a dual frequency pilot tone. By applying a dual frequency pilot tone, with a first pilot tone frequency selected from a low frequency band and a second pilot tone frequency selected from a high frequency band, either simultaneously or alternatively, to a wavelength channel, one of the pilot tone frequencies may be adaptively selected to improve wavelength channel monitoring. More specifically, stimulated Raman scattering (SRS) caused crosstalk and chromatic dispersion (CD) caused pilot fading which adversely affect performance monitoring of the wavelength channel may be reduced. | 2017-12-28 |
20170373749 | SYSTEMS AND METHODS FOR LINE ATTENUATION TESTING - A system for testing line attenuation defects includes a data transmission line configured to transmit a forward signal in a first direction, at least one reflection point at a first location along the data transmission line, a test probe configured to (i) electrically contact a center conductor at a second location along the data transmission line, (ii) introduce a broadband data signal onto the data transmission line, and (iii) measure, at the second location, a return signal from the reflection point, and a spectrum capturing device in operable contact with the test probe. The spectrum capturing device is configured to (i) collect and arrange frequency data measured by the test probe for the test signal, the return signal, and a standing wave created by the sum of the broadband data signal and the return signal, (ii) determine the voltage VSWR of the standing wave, and (iii) calculate a line loss from the VSWR. | 2017-12-28 |
20170373750 | A METHOD AND SYSTEM FOR ASSIGNING PERFORMANCE INDICATORS TO OBJECTS OF A NETWORK - A method of assigning performance indicators to objects of a network employing a computation to assign performance indicators to said objects of said network such that a sum of said performance indicators of objects along a given path in said network in relation to a first threshold value indicates whether said path fulfils a predetermined criterion, and/or indicates whether said path does not fulfil said predetermined criterion. | 2017-12-28 |
20170373751 | METHOD AND SYSTEM FOR OPTICAL PERFORMANCE MONITORING - An aspect of the disclosure provides methods and systems for encoding a data bit stream onto a pilot tone signal. Another aspect of the disclosure provides method and systems for pilot tone detection. In both, a coded pilot tone signal is encoded using a code sequence m | 2017-12-28 |
20170373752 | SYSTEM AND METHOD USING A GATED RETRO-REFLECTOR FOR VISIBLE LIGHT UPLINK COMMUNICATION - A device uses gated retro-reflectors to transmit uplink data in a visible light communication (VLC) system. The gated retro-reflector includes a retro-reflector and a gating shutter between the retro-reflector and a VLC light source. A light sensor receives VLC data at regular intervals in which a light pulse received during one of the intervals represents a first downloaded symbol and absence of a light pulse during another one of the intervals represents a second downloaded symbol. A controller controls the gating shutter to send uplink data from the device responsive to each received VLC light pulse. The controller opens the gating shutter during the reception of a VLC light pulse to upload a first uploaded symbol and closes the gating shutter during the reception of a VLC light pulse to upload a second uploaded symbol. | 2017-12-28 |
20170373753 | System and Method for Providing Optically Coded Information - An active optical machine-readable tag (i.e. optical tag) is provided that is addressable and readable within a line-of-sight of a reader device, such as a mobile device equipped with a camera, at substantially large distances. A method and a system are provided for an active optical tag and a camera-based reader thereof that facilitate asynchronous communication at data rates that are sufficiently high for practical uses, while reducing the flicker associated with the low-frequency optical carrier to a level hardly noticeable by people. The optical tag may be formed as an array of light emitting elements, arranged in a single dimension (linear) or two dimension (planar) arrangement. The array may be embodied as part of a large display unit. | 2017-12-28 |
20170373754 | SYSTEM AND METHOD FOR COMMUNICATING WITH DEEP SPACE SPACECRAFT USING SPACED BASED COMMUNICATIONS SYSTEM - A system and method for communicating with deep space spacecraft are provided. A near-Earth space based communications system satellite, which may be deployed in a deep space stable-looking orbit around the Earth, provides two-way communication with the deep space spacecraft, including transmission and reception of commands and data. The near-Earth space based communications system satellite may store data received from the deep space spacecraft and transmits the data to commercial communication satellites and ground terminals. This system and method may be utilized to communicate to the outer planets with a deep-space space based communications system spacecraft at the Earth-Moon Lagrange points, Sun-Earth Lagrange Points, Sun-Mars Lagrange points and extending out to the outer boundary of the solar system. The system and method are further enhanced with the use of free space optical laser communications and x-ray communications to increase data volume from any deep space spacecraft to Earth. | 2017-12-28 |
20170373755 | HEADER AND PAYLOAD SIGNALS WITH DIFFERENT OPTICAL PROPERTIES - A method, a system, and a non-transitory computer-readable memory resource containing instructions for transmitting data are provided. In an example, the method includes providing a header signal having a first optical property. The header signal indicates a start of a packet, and has a minimum period between transitions that is less than a frame period of a receiving device and greater than a scanline period of the receiving device. A payload signal of the packet is provided that has a second optical property that is different from the first optical property. The payload signal has a minimum period between transitions that is less than the frame period of the receiving device and greater than the scanline period of the receiving device. | 2017-12-28 |
20170373756 | OPTICAL CONNECTOR - An optical connector according to the present disclosure includes: optical transmission paths that have end faces aligned in a predetermined region, and transmit optical signals. The optical transmission paths correspond to transmission channels or reception channels. The optical transmission paths of the transmission channels are distributed and arranged on a periphery of the predetermined region as compared with a case where the optical transmission paths of the transmission channels are concentrated and arranged at a center of the predetermined region. This configuration can increase an output of an optical signal, and make it possible to improve transmission quality at a low cost while improving a safety standard. | 2017-12-28 |
20170373757 | COMMUNICATION DEVICE AND INSPECTION METHOD - A communication device includes: an optical-communication circuit that is capable of performing optical communication with a different communication device and transmits a first electric signal to the different communication device at a startup time of the communication device; an electro-communication circuit that is capable of performing electro communication with the different communication device and receives a second electric signal transmitted from the different communication device in response to the first electric signal; and a control circuit that transmits error information indicating an error in the optical communication to a device after the second electric signal is received by the electro-communication circuit. | 2017-12-28 |
20170373758 | METHOD AND APPARATUS FOR CANCELLING INTERFERENCE NOISE IN OPTICAL COMMUNICATION SYSTEM - The present invention discloses an apparatus and method for cancelling interference noise in an optical communication system. According to an embodiment of the present invention, an apparatus for cancelling interference noise in an optical communication system in accordance with an embodiment of the present invention comprising: a communication unit for receiving first signals including baseband signals and radio frequency tone signals from at least two subscriber terminals and for detecting a second signal in which the first signals are combined; and a control unit for extracting a first interference noise generated around the radio frequency tone signals from the second signal and for cancelling a second interference noise generated around baseband signals using the first interference noise from the second signal. | 2017-12-28 |
20170373759 | ENHANCED DIGITAL DIAGNOSTICS FOR OPTICAL PAM APPARATUS - A Pulse Amplitude Modulated (PAM) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. The diagnostic information may be stored in raw form, or as processed on-chip utilizing local resources. | 2017-12-28 |
20170373760 | OPTICAL COMMUNICATION MODULE, PARALLEL PROCESSING APPARATUS, AND ADJUSTING METHOD - An optical-communication module includes a transceiver to communicate with another optical-communication module (another module); and a control circuit to transmit a first signal to the another module at activation of the own module, execute a first control where a second signal transmitted to the first signal is received from the another module, and execute a second control after the first control, wherein one of the first and second control is a control to adjust an intensity of a signal from the transceiver to the another module based on a feedback signal from the another module to a signal from the transceiver, and wherein the other one of the first and second control is a control causing the another module to adjust a signal intensity from the another module to the transceiver by transmitting a feedback signal to the another module to a signal from the another module. | 2017-12-28 |
20170373761 | APPARATUS AND METHOD FOR RECOVERING DATA AT AN OPTICAL RECEIVER WITH AUTOMATIC TUNING - An optical receiver that recovers data is disclosed. The optical receiver includes a photodetector configured to convert an optical signal into a current signal, and a TIA (Transimpedance Amplifier) configured to operate according to a set of parameters to convert the current signal to a voltage signal. The optical receiver also includes an equalizer configured to process the voltage signal to produce a processed signal having recovered data from the optical signal, and to produce one or more equalization metrics. According to an embodiment of the disclosure, the optical receiver has a feedback processor configured to automatically tune operation of the TIA by adjusting at least one of the parameters of the TIA based on the one or more equalization metrics. This may effect a change in performance or power consumption of the optical receiver while receiving and recovering data. A corresponding method for recovering data is also disclosed. | 2017-12-28 |