| 09th week of 2016 patent applcation highlights part 74 |
| Patent application number | Title | Published |
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| 20160065228 | APPARATUS AND METHOD FOR PHASE LOCKED LOOP BANDWIDTH EXPANSION - An apparatus for PLL bandwidth expansion including a compensation filter and a phase locked loop, where the compensation filter is programmed with a compensation function derived based on programmable coefficients and parameters of a transmitting device, a frequency response of the phase locked loop, and a wanted frequency response. | 2016-03-03 |
| 20160065229 | HIGH-SPEED COMPARATOR FOR ANALOG-TO-DIGITAL CONVERTER - A comparator for an analog-to-digital converter is provided. The comparator includes a differential amplifier unit that receives a sampling signal and provides an output signal, based on a voltage provided by the sampling signal. The differential amplifier unit includes an input stage that receives the sampling signal and integrates a current on the integration nodes based on potentials of the sampling signal. The comparator includes a sense amplifier coupled with the integration nodes that detects a potential difference and amplifies the potential difference to generate the output signal. The comparator includes a charge injection circuit ( | 2016-03-03 |
| 20160065230 | GAIN CALIBRATION OF ADC RESIDUE AMPLIFIERS - A device for gain calibration of an analog-to-digital converter (ADC) residue amplifier includes a digital-to analog converter (DAC) configured to convert a digital signal to an analog signal. The DAC includes a calibration capacitor that can be used in the gain calibration of the ADC residue amplifier. A flash ADC, including a plurality of comparators and an additional comparator, generates the digital signal. The additional comparator provides a threshold voltage approximately in a middle point of a nominal subrange. The nominal subrange comprises a portion of a voltage range corresponding to threshold voltages of two adjacent comparators of the plurality of comparators. | 2016-03-03 |
| 20160065231 | EFFICIENT ANALOG TO DIGITAL CONVERTER - An efficient analog to digital converter is disclosed. The efficient analog to digital converter includes a coarse analog to digital converter coupled to an input analog signal. The coarse analog to digital converter is configured to provide an approximate digital representation of the input analog signal. The efficient analog to digital converter also includes a fine analog to digital converter coupled to the input analog signal. The output of the coarse analog to digital converter is coupled to the fine analog to digital converter. The fine analog to digital converter is configured to set input range of the fine analog to digital converter as a function of the output of the coarse analog to digital converter. | 2016-03-03 |
| 20160065232 | EXCESS LOOP DELAY COMPENSATION (ELC) FOR AN ANALOG TO DIGITAL CONVERTER (ADC) - In one embodiment, a circuit includes a quantizer configured to convert an analog input signal to a digital signal. The quantizer includes a first feedback path including a first digital to analog converter (DAC) coupled from an output of the quantizer to a summing junction that is coupled to an input of the quantizer. The first feedback path converts the digital signal to a first corresponding analog value for combining with the analog input signal at the summing junction. Also, the quantizer includes a plurality of excess loop delay (ELD) compensation paths coupled to the summing junction configured to compensate for excess loop delay from a second feedback path coupled from the output of the quantizer to input of the quantizer via a loop filter. Second DACs in the second feedback path convert the digital signal to a second corresponding analog value for combining with the analog input signal. | 2016-03-03 |
| 20160065233 | Digital-to-Analog Converter - A digital-to-analog converter (DAC) is described. The DAC comprises a resistor having a resistance R and a capacitor having a capacitance C. The DAC comprises a first switching element configured, in response to a first control signal, to couple the capacitor to a first rail via a path having a resistance less than R and a second switching element configured, in response to a second control signal, to couple the capacitor to the first rail through the resistor. The DAC also comprises a third switching element configured, in response to a third control signal, to couple the capacitor to a second rail ( | 2016-03-03 |
| 20160065234 | MONOTONIC SEGMENTED DIGITAL TO ANALOG CONVERTER - In one implementation, a digital analog converter (DAC) is monotonic because the output moves only in the direction of the input and segmented because a more significant portion of the DAC is separated from a less significant portion. The DAC receives an input binary word that includes multiple most significant bits and multiple least significant bits. The DAC decodes the input binary word to an intermediate signal that includes a bit width equal to or greater than a bit width of the binary word. The intermediate signal sets output switches and current source switches. The DAC provides an analog output signal that represents the input binary word. | 2016-03-03 |
| 20160065235 | CONTINUOUS ANALOG SIGNAL MONITORING - An integrated circuit includes a first circuit configured to convert a digital signal of a first format, which includes a sampled version of an analog signal, to a digital signal of a second format. A second circuit is configured to output the digital signal of the second format through a digital interface. An electronic system including a circuit configured to output a digital signal of the analog signal as a bitstream is provided. A clock generator generates a clock for clocking the bitstream. In another aspect, a method for operating an integrated circuit includes converting a digital signal of a first format, which includes a sampled version of an analog signal, to a digital signal of a second format. The digital signal of the second format is outputted through a digital interface. A monitoring or observing device receives directly the digital signal of the second format through the digital interface. | 2016-03-03 |
| 20160065236 | DELTA-SIGMA MODULATOR - A system and method to achieve low power and/or low supply operation of a delta-sigma modulator by taking advantage of the inherent virtual ground of the delta-sigma loop to make the input to a low power integrator small and largely independent of the input signal. This results in improved linearity of the integrator and relaxed constraints on the supply for the first stage integrator. The architecture also enables direct access to the quantization error of the feedback loop and thus can be used to either/or: 1. Calibrate the modulator, 2. Achieve reduced quantization noise, 3. Stabilize the loop by compensating for excess loop delay. Low voltage common-mode-feedback is also achieved using the techniques described. | 2016-03-03 |
| 20160065237 | Dynamic Range Reduction for Analog-to-Digital Converters - In accordance with the exemplary embodiments of the invention there is at least an apparatus to perform a method including receiving by an analog-to-digital converter a signal; determining whether an in-band blocker is present in the signal; and adjusting a transfer function of the analog-to-digital converter based on whether an in-band blocker is present by configuring a loop filter of the analog-to-digital converter. | 2016-03-03 |
| 20160065238 | Decoding a Manchester Code Without a PLL for Short Data Sequences - In a decoding device for a Manchester-encoded signal, at least one moving data average and/or one moving clock average is/are formed relative to mutually differing average times using moving-type averaging units, and from these moving average values, binary output signals are made available as data signal and/or clock signal with the aid of comparators. | 2016-03-03 |
| 20160065239 | METHODS AND DEVICES FOR VECTOR SEGMENTATION FOR CODING - A method for partitioning of input vectors for coding is presented. The method comprises obtaining ( | 2016-03-03 |
| 20160065240 | DATA STORAGE DEVICE AND OPERATING METHOD THEREOF - A data encoding method may include receiving N bits of first data, and converting the first data into M bits of second data, wherein the proportion of a first value in the second data is higher than the proportion of a second value. | 2016-03-03 |
| 20160065241 | DATA TRANSFER DEVICE, DATA TRANSFER SYSTEM, METHOD FOR COMPRESSING AND TRANSFERRING DATA, AND PROGRAM - A data transfer device includes a calculation unit and a compression processing unit. The calculation unit determines, from a plurality of compression techniques, a combination of a first compression technique and a second compression technique for optimizing effective throughput based at least on compression performance parameters related to the plurality of compression techniques and a transfer performance parameter related to transfer processing, the first compression technique being a technique in which a speed of compression processing serves as a constraint in a data transfer as compared with a speed of transfer processing, the second compression technique being a technique in which a speed of transfer processing serves as a constraint in a data transfer as compared with a speed of compression processing. The compression processing unit compresses target data using at least one of the first compression technique and the second compression technique. | 2016-03-03 |
| 20160065242 | LOW DENSITY PARITY CHECK ENCODER, AND LOW DENSITY PARITY CHECK ENCODING METHOD USING THE SAME - A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword. The second memory is initialized to 0. The processor generates the LDPC codeword by performing accumulation with respect to the second memory using information bits. The accumulation is performed at parity bit addresses that are updated using a sequence corresponding to a parity check matrix (PCM). | 2016-03-03 |
| 20160065243 | RADIATION HARDENING ARCHITECTURAL EXTENSIONS FOR A RADIATION HARDENED BY DESIGN MICROPROCESSOR - This disclosure relates generally to processors and methods of operating the same. In particular, this disclosure relates to components for correcting soft errors in a processor. In one embodiment, a processor includes an instruction decoder and an exception handler. The instruction decoder is configured to receive one or more soft error correction instructions and decode the one or more soft error correction instructions. Additionally, an exception handler is configured to execute the one or more soft error correction instructions so as to correct one or more soft errors. In this manner, the processor is capable of correcting soft errors that are the result of radiation strikes. | 2016-03-03 |
| 20160065244 | DATA PROCESSING DEVICE AND DATA PROCESSING METHOD - In a transmitting device, in interchanging to interchange a code bit of an LDPC code in which a code length is 16200 bits and an encoding rate is 8/15 with a symbol bit of a symbol corresponding to any of 8 signal points defined by 8PSK, when 3 bits of code bits stored in three units of storages having a storage capacity of 16200/3 bits and read bit by bit from the units of storages are allocated to one symbol, a bit b | 2016-03-03 |
| 20160065245 | ELECTRONIC SYSTEM WITH VITERBI DECODER MECHANISM AND METHOD OF OPERATION THEREOF - A electronic system includes: a support chip configured to receive an input code stream; a circular Viterbi mechanism, coupled to the support chip, configured to: generate a final path metric for the input code stream, store intermediate path metrics at the repetition depth, generate a repetition path metric for the input code stream, and calculate a soft correlation metric based on the final path metric, the repetition path metric, and the intermediate path metrics. | 2016-03-03 |
| 20160065246 | COMPUTING DEVICE WITH CONFIGURABLE ANTENNA - A computing device with a configurable antenna. The antenna is configured through a switching circuit operating under software control. Operating characteristics of the antenna are configured based on connections between conducting segments established by the switching circuit, allowing the nominal frequency, bandwidth or other characteristics of the antenna to be configured. Because the switching is software controlled, the configurable antenna may be integrated with a software defined radio. The radio and antenna can be reconfigured to support communication according to different wireless technologies at different times or to interleave packets according to different wireless technologies to support concurrent sessions using different wireless technologies. | 2016-03-03 |
| 20160065247 | ELECTRONIC DEVICE USING ANTENNA - An electronic device is provided, which includes an antenna; and a communication processor configured to transmit and receive a first signal corresponding to a first frequency band through the antenna, and to perform one of transmitting and receiving a second signal corresponding to a second frequency band through the antenna. | 2016-03-03 |
| 20160065248 | RADIO COMMUNICATION DEVICE, RADIO COMMUNICATION METHOD, AND RADIO COMMUNICATION SYSTEM - A radio communication device includes: a processor configured to execute a program; and a memory configured to store the program, wherein the processor performs, based on the program, operations to: detect communication quality of each of a plurality of channels; and lower a first set modulation level of a first channel with the communication quality which is equal to or lower than a level and a second set modulation level of a first adjacent channel as at least one of two adjacent channels adjacent to the first channel in a frequency axis direction. | 2016-03-03 |
| 20160065249 | CAPTURE SELECTION FOR DIGITAL PRE-DISTORTION ADAPTATION AND CAPTURE CONCATENATION FOR FREQUENCY HOPPING PRE-DISTORTION ADAPTATION - A digital pre-distortion component includes: a first capturing component that captures a first sample set of data; a first generating component that generates a first change matrix associated with a portion of the first sample set of data; a first memory component that stores the first change matrix; a second capturing component that captures a second sample set of data; a second generating component that generates a second change matrix associated with a portion of the second sample set of data; a second memory component that stores the second change matrix; a third capturing component that captures a third sample set of data; a third generating component that generates a third change matrix associated with a portion of the third sample set of data; a comparing component that compares the third change matrix with the first change matrix to obtain a first comparison, and compares the third change matrix with the second change matrix to obtain a second comparison; and an adapting component that adapts the digital pre-distortion component with the third sample set of data based on one of the first comparison and the second comparison. | 2016-03-03 |
| 20160065250 | WIRELESS COMMUNICATION UNIT, INTEGRATED CIRCUITS AND METHOD FOR LINEARIZING A TRANSMITTER SIGNAL - A wireless communication unit comprising a transmitter comprises: a linearization circuit arranged to receive and digitally distort an input signal; a radio frequency power amplifier operably coupled to the linearization circuit and arranged to amplify a radio frequency representation of the digitally distorted input signal; a feedback path arranged to feed back a portion of the amplified digitally distorted output of the received input signal to the linearization circuit; a bypass circuit comprising a plurality of energy storage elements operably coupled between an output of the radio frequency power amplifier and ground; and a first connector arranged to provide a representation of at least one electrical memory effect of at least one of the plurality of energy storage elements to the linearization circuit, wherein the linearization circuit is arranged to use the representation of the at least one electrical memory effect when digitally distorting the input signal. | 2016-03-03 |
| 20160065251 | SELECTING A PRECODING CONFIGURATION BASED ON SELF-JAMMING METRICS - A method for wireless communication by a wireless communication device is described. The wireless communication device determines that an aggressor radio in the wireless communication device is causing (or can potentially cause) self-jamming to a victim radio in the wireless communication device. A precoding configuration is selected based on one or more link throughput metrics and one or more self-jamming metrics. The precoding configuration is applied to transmissions of the aggressor radio. | 2016-03-03 |
| 20160065252 | BROADBAND RADIO FREQUENCY DATA COMMUNICATION SYSTEM USING TWISTED PAIR WIRING - A system for distributing broadband signals via twisted pair wiring is disclosed. Various aspects of the system involve use of a broadband signal distribution interface device and/or a broadband line driver. In one aspect, a broadband signal distribution interface device includes a broadband signal interface configured to receive broadband radio frequency signals, and a plurality of broadband signal connections configured to distribute broadband radio frequency signals. The interface device also includes circuitry defining an upstream signal path and a downstream signal path and including a gain control circuit and a slope control circuit each positioned along the downstream signal path. The circuitry is configured to accommodate downstream transmission of the broadband signals onto twisted pair wiring. | 2016-03-03 |
| 20160065253 | METHOD FOR AND DEVICE FOR REDUCING PEAK TO AVERAGE POWER RATIO - The present disclosure provides a method and device for reducing peak to average power ratio. A first communication is analyzed to a first in-phase parameter X | 2016-03-03 |
| 20160065254 | RF TRANSMITTER SUPPORTING CARRIER AGGREGATION AND ENVELOPE TRACKING - Exemplary embodiments of the present invention relate to an RF transmitter supporting carrier aggregation and envelope tracking and an RF transmitter according to an embodiment of the present invention comprises an RF path configured to convert a carrier aggregation signal in which a plurality of component carriers belonging to a baseband are aggregated into an RF signal; an ET path configured to generate an envelope signal by calculating magnitudes of the plurality of component carriers, respectively, and adding the calculated each magnitude of the component carriers; and an amplifier configured to power-amplify the converted RF signal according to a bias voltage corresponding to the generated envelope signal. According to exemplary embodiments of the present invention, power amplification efficiency and data transmission efficiency are improved by applying carrier aggregation and envelope tracking. | 2016-03-03 |
| 20160065255 | DOMINO CIRCUIT AND RELATED ARCHITECTURES AND METHODS FOR CARRIER AGGREGATION - Domino circuit and related architectures and methods for carrier aggregation. In some embodiments, a Domino circuit can include first and second signal paths for respective first and second frequency bands, and each signal path can be configured to present an approximately zero impedance to a signal in the other frequency band. The Domino circuit can further include a coupling circuit that couples the first and second signal paths, and configured such that the approximately zero impedance presented by the signal path to the signal in the other frequency band results in the signal in the other frequency band being substantially excluded from the signal path. | 2016-03-03 |
| 20160065256 | SLIDING INTERMEDIATE FREQUENCY (IF) RECEIVER WITH ADJUSTABLE DIVISION RATIO AND SLIDING IF RECEPTION METHOD - A sliding intermediate frequency (IF) receiver and a sliding IF reception method are provided. A first local oscillation signal and a second local oscillation signal may be generated, based on a division ratio of a frequency of the first local oscillation signal to a frequency of the second local oscillation signal that is determined in advance so that an amount of power to be consumed or an error rate of the sliding IF receiver is optimized. A received input signal may be converted to a first IF signal, based on the first local oscillation signal, and the first IF signal may be converted to a second IF signal, based on the second local oscillation signal. | 2016-03-03 |
| 20160065257 | APPARATUS AND METHOD OF PROCESSING SIGNAL, AND RECORDING MEDIUM - Disclosed are an apparatus and a method of processing a signal, and a recording medium. The apparatus for processing a signal includes: an estimating unit configured to estimate a first Signal-to-Interference plus Noise power Ratio (SINR) of a reception signal based on transmission path information based on a result of an estimation of a plurality of transmission paths and noise power notified from a wireless reception device; a signal processing unit configured to generate a first modulation symbol by modulating the information bit obtained based on a first modulation order and a first coding rate determined based on the first SINR on a basis of the first modulation order, and a perturbation addition processing unit configured to search for a perturbation vector based on the first modulation symbol generated for each of the plurality of transmission paths, and add the perturbation vector to the first modulation symbol. | 2016-03-03 |
| 20160065258 | METHOD AND APPARATUS FOR CANCELING INTERFERENCE SIGNAL OF UE IN WIRELESS COMMUNICATION SYSTEM - Methods and apparatuses are provided for canceling interference at a User Equipment (UE) in a wireless communication system. A signal that includes a desired signal and an interference signal is received from at least one Base Station (BS). A random parameter is generated by projecting a vector of the received signal onto a set of projection vectors. A decision metric is determined using the random parameter. A Traffic to Pilot Ratio (TPR) that minimizes the decision metric with respect to both a transmission mode candidate group of the interference signal and a TPR candidate group of the interference signal is determined. The interference signal is canceled from the received signal using the TPR. | 2016-03-03 |
| 20160065259 | VOICE COMMUNICATION DEVICE WITH FOREIGN LANGUAGE TRANSLATION - An earpiece adapted for being worn by a user includes an earpiece housing, at least one microphone within the earpiece housing, a speaker within the earpiece housing, and a pulse oximeter associated with the earpiece housing. The device may further include an intelligent control operatively connected to the pulse oximeter, a short range transceiver operatively connected to the intelligent control, and a temperature sensor. | 2016-03-03 |
| 20160065260 | ANTENNA APPARATUS WITH AN INTEGRATED PROXIMITY SENSOR AND METHODS - Wireless wide area network (WWAN) antenna with integrated sensor and methods of using the same. In one embodiment, an antenna subsystem and proximity sensing subsystem share a grounded antenna component/parasitic element. The parasitic element can be used to broaden the operating band of the antenna feeding component and provide an input (via a capacitance change) to a proximity sensor. The parasitic element is, in one embodiment, coupled in parallel to the proximity sensor allowing for a reduction in noise due to increased isolation between the antenna subsystem and the sensing subsystem. | 2016-03-03 |
| 20160065261 | COVER OF A HANDHELD ELECTRONIC DEVICE - A cover configured to be attached to, and cover a portion of, a handheld electronic device. The cover includes a shell having a first side and a second side and a wireless charging receiver module connectable to the handheld electronic device. When attached to the handheld electronic device the first side of the shell faces the handheld electronic device. The wireless charging receiver module is positioned on the first side of the shell. | 2016-03-03 |
| 20160065262 | MOBILE DEVICE CASE - A protective case for housing a mobile device is provided. The protective case includes an upper assembly and a bottom assembly attachable to (and separable from) the upper assembly to form a watertight inner cavity therebetween. The resulting profile (i.e., external shape) of the protective case mirrors that of the mobile device installed therein. More particularly, the protective case generally includes a top surface, a bottom surface, and spaced-apart inner and outer perimeters extending between the top and bottom surfaces. The top surface of the case is made up of or includes the top surfaces of various other components of the case, and those component top surfaces are flush with one another such that the top surface of the case is completely flat (i.e., does not include an obtrusive raised protective rim). | 2016-03-03 |
| 20160065263 | DUAL BAND CONCURRENT TRANSCEIVER - A method and apparatus are disclosed for concurrently transmitting and/or receiving two or more communication signals by a wireless device. The communication signals may include signals described by two or more communication protocols, such as Wi-Fi communication signals and BLUETOOTH communication signals. For at least some embodiments, the Wi-Fi communication signals may be within a 2.4 GHz or 5 GHz frequency band. In some embodiments, the apparatus may include a configurable switch unit to couple the Wi-Fi communication signals and/or the BLUETOOTH communication signals to an antenna through a diplexer and a filter. | 2016-03-03 |
| 20160065264 | LOW NOISE AMPLIFIER AND METHOD FOR CARRIER AGGREGATION AND NON-CARRIER AGGREGATION - A low noise amplifier for carrier aggregation and non-carrier aggregation is provided. The low noise amplifier includes a plurality of symmetrical half circuits, a plurality of bias circuits, where each of the plurality of bias circuits is connected to one of the plurality of symmetrical half circuits, a plurality of capacitors, where each of the plurality of capacitors is connected to one of the plurality of symmetrical half circuits for Alternating Current (AC) coupling an RF signal containing at least one component carrier, and a control logic circuit connected to each of the plurality of symmetrical half circuits for configuring the low noise amplifier to process one component carrier or a plurality of component carriers. | 2016-03-03 |
| 20160065265 | Spread Spectrum Wireless over Non-Contiguous Channels - Techniques for spread spectrum wireless over non-contiguous channels are described. In at least some embodiments, a set of channels is selected for wireless communication, with at least some of the channels being non-contiguous (e.g., non-adjacent) from one another. A spreading sequence is selected, such as based on attributes of a selected set of channels. Communication data that is to be transmitted over the set of channels is combined with the spreading sequence to generate a spread spectrum signal. The spread spectrum signal is then divided into multiple sub-signals for transmission over the set of channels. | 2016-03-03 |
| 20160065266 | RECEIVING DEVICE AND RECEIVING PROCESS METHOD - A communication processor in a receiving device includes a chip equalizer, a correction matrix calculating unit, and a correction unit. The chip equalizer equalizes a plurality of reception signal sequences received via an antenna. The correction matrix calculating unit calculates a correction matrix by using a channel matrix, a weight of an equalizer, a power ratio of a pilot signal to a reception signal, a number of multi codes, and a spreading factor of the reception signal sequences. The correction unit corrects, by using the correction matrix, the reception signal sequences equalized by the chip equalizer. | 2016-03-03 |
| 20160065267 | COMMUNICATIONS LINK DISCONTINUITY DETECTION SYSTEMS AND METHODS - Systems and methods for detecting and analyzing discontinuities in a communications link are disclosed. In some embodiments, the systems and methods operate to project signals into the communications link and detecting reflected signals. The reflected signals are processed to define a transformed distribution of the reflected signals. A peak value in the transformed distribution is selected and a local fit to the selected peak value is performed using a model function. A residue distribution is formed based upon the transformed distribution and the model function. A location of the discontinuity based upon the residue distribution is identified, and another peak value from the residue distribution is selected. Additional systems and methods are disclosed. | 2016-03-03 |
| 20160065268 | SPATIALLY ENABLED SECURE COMMUNICATIONS - Spatially Enabled Communication technologies are disclosed. A proximity boundary can be defined by a communication range of one or more SRC devices configured to communicate using near field magnetic induction (NFMI) using at least two antennas to provide magnetic induction diversity. A data block can be securely communicated by interspersing the data between an short range communication (SRC) device for near field magnetic induction (NFMI) communication within the proximity boundary and a radio frequency (RF) radio for RF communication. Data received on the SRC device and the RF radio can be reassembled to form the data block. | 2016-03-03 |
| 20160065269 | WIRELESS POWER FEEDING APPARATUS, COMMUNICATION METHOD, AND COMPUTER PROGRAM - A wireless power feeding apparatus ( | 2016-03-03 |
| 20160065270 | METHOD AND APPARATUS FOR ACTIVATING SCAN FUNCTION - A method and electronic device for receiving information is provided. The method includes transmitting, by the electronic device, a scan time and an identification of the information to cause the identified information to be broadcast at the scan time; and scanning, by the electronic device, during the scan time to receive the information. The electronic device includes a transmitter configured to transmit a scan time and an identification of the information to cause the identified information to be broadcast at the scan time; and a scanner configured to scan during the scan time to receive the information. | 2016-03-03 |
| 20160065271 | PROXIMITY BOUNDARY BASED COMMUNICATION USING RADIO FREQUENCY (RF) COMMUNICATION STANDARDS - Technology is described for proximity based communications. A proximity boundary can be defined with dimensions defined by a communication range of one of a first Short Range Communication (SRC) device and a second SRC device. The first SRC device and the second SRC device can be configured to communicate using near field magnetic induction (NFMI). A proximity signal can be communicated in the proximity boundary between the first SRC device and the second SRC device. A security permission can be provided to enable selected data to be communicated from one or more of the first SRC device or the second SRC device in the proximity boundary when the proximity signal is detected between the first SRC device and the second SRC device. The selected data can be communicated from one or more of the first SRC device or the second SRC device using a radio frequency (RF) communication standard. | 2016-03-03 |
| 20160065272 | SPATIALLY ENABLED SECURE COMMUNICATIONS - Spatially enabled secure communication technologies are disclosed. A proximity boundary can be defined by a communication range of one or more SRC devices configured to communicate using near field magnetic induction (NFMI) using at least two antennas to provide magnetic induction diversity. Secure data can be selected for NFMI communication on a spatially secure NFMI data link between the one or more SRC devices. Non-secure data can be selected for communication on one of a wireless local area network or a wireless wide area network. | 2016-03-03 |
| 20160065273 | ROTARY TRANSMITTER FOR MACHINE TOOLS - The invention relates to a rotary transmitter ( | 2016-03-03 |
| 20160065274 | METHOD AND APPARATUS FOR MEASURING CHANNEL QUALITY IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A method and an apparatus for measuring channel quality in a MIMO system is provided. The method includes measuring a first SINR based on an assumption that a first detector is used, using a channel estimation value of a reception signal with respect to each of a plurality of space layers, and a second SINR for each of the plurality of space layers corresponding to a case where the plurality of space layers exist independently using the channel estimation value of the reception signal; determining a Log Likelihood Ratio of reception data based on an assumption that a second detector is used, with respect to each of the plurality of space layers; and generating channel quality information based on an assumption that the second detector is used, based on the first SINR and the second SINR with respect to each of the plurality of space layers, and the LLR. | 2016-03-03 |
| 20160065275 | MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATIONS OVER NONLINEAR CHANNELS USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING - An OFDM receiver comprises a (FEC) decoder and a nonlinearity compensation circuit. The nonlinearity compensation circuit is operable to generate estimates of constellation points transmitted on each of a plurality of subcarriers of a received signal based on soft decisions from the FEC decoder and based on a model of nonlinear distortion introduced by a transmitter from which the received signal was received. The generation of the estimates may be based on a measure of distance between a function of the received signal and a synthesized version of the received signal. The generation of the estimates may comprise iterative processing of symbols of the received signal, and the iterative processing may comprise a plurality of outer iterations and a plurality of inner iterations. | 2016-03-03 |
| 20160065276 | Method For Feeding Back Information, UE and Base Station - A method for feeding back information, UE and base station. The method for feeding back information includes: the UE supports an aperiodic feedback mode | 2016-03-03 |
| 20160065277 | Precoding Techniques for Optimized Channel Capacity in MIMO Systems - A method of deriving a precoding matrix for a MIMO signal operates by maximising a function of channel capacity over values of precoding matrices so as to maximise the minimum channel capacity for the set of channel realisations. In this way, the least worst channel capacity may be achieved in broadcast arrangements in which the actual channel may be unknown. | 2016-03-03 |
| 20160065278 | METHOD FOR DETERMINING PRECODING MATRIX INDICATOR, USER EQUIPMENT, AND BASE STATION - A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first reference signal set, where the precoding matrix is a function of the user equipment-specific matrix or matrix set; and sending a precoding matrix indicator to the base station, where the precoding matrix indicator corresponds to the selected precoding matrix. In the embodiments of the present invention, CSI feedback precision can be improved without excessively increasing feedback overhead, thereby improving system performance. | 2016-03-03 |
| 20160065279 | METHOD FOR DETERMINING PRECODING MATRIX INDICATOR, USER EQUIPMENT, AND BASE STATION - The present invention provides a method for determining a precoding matrix indicator, user equipment, and a base station. The method includes: receiving a first reference signal set sent by a base station; determining, based on the first reference signal set, one or more intermediate matrices, and reporting, to the base station, a first index used to indicate the intermediate matrix; receiving a second reference signal set sent by the base station; and determining, based on the second reference signal set, a precoding matrix, and reporting, to the base station, a precoding matrix indicator used to indicate the precoding matrix, where the precoding matrix is a product W of two matrices W | 2016-03-03 |
| 20160065280 | PRECODING METHOD, PRECODING DEVICE - Disclosed is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals that are transmitted in the same frequency bandwidth at the same time. According to the precoding method, one matrix is selected from among matrices defining a precoding process that is performed on the plurality of baseband signals by hopping between the matrices. A first baseband signal and a second baseband signal relating to a first coded block and a second coded block generated by using a predetermined error correction block coding scheme satisfy a given condition. | 2016-03-03 |
| 20160065281 | TRANSMISSION MODES AND SIGNALING FOR UPLINK MIMO SUPPORT OR SINGLE TB DUAL-LAYER TRANSMISSION IN LTE UPLINK - An apparatus for mapping data in a wireless communication system. The apparatus includes circuitry for generating a precoding matrix for multi-antenna transmission based on a precoding matrix indicator (PMI) feedback from at least one remote receiver where the PMI indicates a choice of precoding matrix derived from a matrix multiplication of two matrices from a first code book and a second codebook. The apparatus further includes circuitry for precoding one or more layers of a data stream with the precoding matrix and transmitting the precoded layers of data stream to the remove receiver. | 2016-03-03 |
| 20160065282 | LINEAR PRECODING IN FULL-DIMENSIONAL MIMO SYSTEMS AND DYNAMIC VERTICAL SECTORIZATION - Certain aspects of the present disclosure provide methods and apparatus for linear precoding in full-dimensional MIMO (FD-MIMO) systems. According to aspects, an eNB may compress a larger number of antenna elements to a smaller number of antenna ports. The eNB may use a port precoding matrix to transmit reference signals to a UE, receive feedback regarding CSI based on the reference signals, and transmit data to the UE, based on a mapping of multiple data layers and mapping of antenna ports to the physical antenna elements. Further, aspects include performing elevation beamforming by dynamically forming one or more vertical sectors based on UE feedback in the elevation domain. | 2016-03-03 |
| 20160065283 | METHOD AND APPARATUS FOR QUANTIZING CHANNEL STATE INFORMATION - The present invention relates to a method and an apparatus for quantizing channel state information (CSI). An embodiment of the present invention provides a method for providing codeword index information to a base station configured with N | 2016-03-03 |
| 20160065284 | METHODS FOR EFFICIENT BEAM TRAINING AND COMMUNICATIONS APPARATUS AND NETWORK CONTROL DEVICE UTILIZING THE SAME - A network control device includes a wireless communications module and a controller. The wireless communications module uses a preferred transmitting beam to communicate with a communications apparatus in one or more downlink opportunities corresponding to the preferred transmitting beam. The controller schedules signal or data to be transmitted in at least one downlink opportunity corresponding to the preferred transmitting beam. When scheduling signal or data to be transmitted, the controller further provides at least one training gap, in which the controller does not schedule any dedicated data to the communications apparatus, in the downlink opportunity corresponding to the preferred transmitting beam. | 2016-03-03 |
| 20160065285 | WIRELESS TERMINAL, METHOD THEREIN, COMPUTER PROGRAM AND COMPUTER-READABLE STORAGE MEDIUM - Embodiments herein relate a wireless terminal for handling channel feedback for a channel from a radio base station to the wireless terminal in a MIMO system. The wireless terminal computes a Signal to Noise Ratio, SNR, or Signal to Interference plus Noise Ratio, SINR, for each entity in a precoding codebook for a plurality of transmission ranks. The wireless terminal either computes a capacity for each entity based on the computed SNR or SINR and then computes an averaged capacity by averaging the computed capacities for a plurality of layers; or the wireless terminal computes an averaged capacity for each entity based on an average of the computed SNR or SINR for a plurality of layers. Then the wireless terminal selects a preferred precoding control index, PCI, and a preferred transmission rank as channel feedback, which preferred PCI and preferred transmission rank maximize the computed averaged capacity. | 2016-03-03 |
| 20160065286 | APPARATUS, SYSTEM AND METHOD OF BEAM TRACKING - Some demonstrative embodiments include apparatuses, devices, systems and methods of beam tracking For example, an apparatus may include a transmitter to transmit data to a wireless communication device via a first beam direction of a plurality of beam directions, and to transmit one or more pilot signals via one or more other beam directions of the plurality of beam directions; and a receiver to receive from the wireless communication device a feedback indicating a second beam direction of the plurality of beam directions, the second beam direction being one of the one or more other beam directions, wherein the transmitter is to switch to the second beam direction to communicate with the wireless communication device. | 2016-03-03 |
| 20160065287 | APPARATUS, SYSTEM AND METHOD OF BEAMFORMING TRAINING - Some demonstrative embodiments include apparatuses, devices, systems and methods of beamforming training For example, an apparatus may include a transmitter, a receiver, and a controller to repeat a beamforming training sequence including a transmit (Tx) mode and a receive (Rx) mode, at the Tx mode the transmitter is to transmit a directional Tx training signal to a wireless communication device, and at the Rx mode the receiver is to be at an omnidirectional Rx state, wherein subsequent to successful receipt of a directional Rx training signal from the wireless communication device at the receiver, the transmitter is to transmit the directional Tx training signal including an Rx beam indication to indicate a beam direction of the Rx training signal. | 2016-03-03 |
| 20160065288 | Method and Apparatus for Obtaining Channel Direction Information - The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). | 2016-03-03 |
| 20160065289 | Method and Terminal for Feeding Back Channel State Information - A method and terminal for feeding back channel state information are applied to a 4-antenna system. The method includes: a terminal acquiring channel state information, the terminal performing joint encoding on PMI1 information and RI information into a 4-bit or 5-bit feedback report, or, performing joint encoding on PMI1 information and PMI2 information into a 4-bit feedback report, or, the PMI2 information using 2-bit feedback; and the terminal feeding back the feedback report in a physical uplink control channel. | 2016-03-03 |
| 20160065290 | MULTIPLE-INPUT MULTIPLE-OUTPUT CELLULAR NETWORK COMMUNICATIONS - A technology for an enhanced node B (eNB) that is operable to perform beamforming using multiple-input multiple-output (MIMO) in a cellular network. One or more user equipment (UEs) can be configured to use a same or different multiple port (multi-port) channel state information reference signal (CSI-RS) pattern. Feedback reports can be received from the one or more UEs associated with the multi-port CSI-RS pattern at the eNB. A UE-specific or more UEs at the eNB using the feedback report from the one or more UEs. | 2016-03-03 |
| 20160065291 | MOBILE STATION AND REPORTING METHOD - A mobile station reports, based on a known signal transmitted from a base station, channel state information to the base station and performs wireless communication with the base station by spatial multiplexing. The mobile station includes: a calculating unit that calculates first precoding information corresponding to first channel state information and used in horizontal direction beam formation in the base station, second precoding information corresponding to second channel state information, and third precoding information corresponding to both of the first channel state information and the second channel state information and used in vertical direction beam formation in the base station; and a report control unit that reports the first precoding information and the third precoding information in reporting the first channel state information, and reports the second precoding information without reporting the third precoding information in reporting the second channel state information. | 2016-03-03 |
| 20160065292 | CODEBOOK FEEDBACK METHOD AND APPARATUS FOR MULTIPLE-ANTENNA CHANNEL IN MIMO SYSTEM - A codebook feedback method and apparatus for a multiple-antenna channel in a Multiple Input Multiple Output (MIMO) system are provided. In an embodiment, a method ( | 2016-03-03 |
| 20160065293 | DISTRIBUTED ANTENNA SYSTEM FOR MIMO SIGNALS - A distributed antenna system includes a multiple-input and multiple-output (MIMO) base station configured to output at least a first signal and a second signal. At least one master unit communicates with the MIMO base station. At least one remote unit communicates with the master unit. At least one antenna is coupled with the remote unit for receiving signals from the remote unit. A coupler element is configured for introducing a phase shift in a portion of at least the first MIMO signal and for combining the phase shifted first MIMO signal portion with a portion of the second MIMO signal and presenting the combined first and second MIMO signal portions at an output port of the coupler element. An antenna is configured for receiving the combined MIMO signal portions for transmission. | 2016-03-03 |
| 20160065294 | METHOD AND APPARATUS FOR ADAPTIVE BEAM HOPPING IN MULTI CELL MULTI USER COMMUNICATION SYSTEM - The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed are a method and an apparatus for performing adaptive beam hopping in a multi-cell multi-user communication system. The method includes: making a request for allowing multiple accesses for beam hopping for a predetermined operation time to a plurality of accessible base stations (BSs); receiving a response to the request from two or more BSs among the plurality of BSs and determining, according to a predetermined reference, beams above the reference among transmission beams of the two or more BSs as available beams; determining a beam hopping pattern based on the determined available beams and transmitting the determined hopping pattern to the two or more BSs; and forming reception beams based on the determined beam hopping pattern to receive signals. | 2016-03-03 |
| 20160065295 | ANTENNA-DIVERSITY RECEIVER AND METHOD OF OPERATING AN ANTENNA-DIVERSITY RECEIVER AND A TRANSMITTER IN A FREQUENCY-HOPPING COMMUNICATION SYSTEM - An antenna-diversity receiver receives data units from a transmitter in a frequency-hopping communication system. The frequency-hopping system has a channel set comprising of multiple channels, each having its own frequency range. The channel set comprises a set of multiple advertising channels and a set of multiple data channels. The receiver comprises an antenna set of multiple antennas. | 2016-03-03 |
| 20160065296 | RECEIVER CIRCUIT AND RECEPTION METHOD - First and second transmission channel correction circuits generate a corrected data signal and a corrected control signal by executing a transmission channel correction to a data signal transmitted by a first modulation method and a control signal transmitted by a second modulation method that is more tolerant to noise than the first modulation method. The data signal and control signal are included in reception signals received by first and second antennas. First and second quality information calculation circuits calculate quality information indicating quality of the reception signal on the basis of the corrected control signal. A combination ratio calculation circuit calculates a combination ratio of the corrected data signals generated by the first and second transmission channel correction circuits, on the basis of two types of quality information calculated by the first and second quality information calculation circuits. A combination circuit executes combination at the combination ratio. | 2016-03-03 |
| 20160065297 | NETWORK-CODING BUILDING BLOCKS AND DECOMPOSITION SCHEDULING BASED THEREON - Methods and systems involving network coding (NC) atoms as building blocks of NC networks solve the scheduling problem in NC networks using a decomposition framework based on NC atoms. Ten physical-layer network coding (PNC) atoms and their straightforward network coding (SNC) counterparts are disclosed. SNC network can generate a transmission schedule based on SNC atoms. PNC network can generate transmission schedule based on PNC atoms. Performance evaluation results indicate that decomposition based on PNC atoms outperforms the traditional multi-hop (non-NC) scheduling by about 100% and can yield performance gain of 40% or more compared with decomposition based on the PNC TWRC atom alone. Further performance evaluation results indicate that decomposition based on SNC atoms outperforms the traditional multi-hop (non-NC) scheduling by about 33% and can yield performance gain of 14% or more compared with decomposition based on the SNC TWRC atom alone. | 2016-03-03 |
| 20160065298 | RELAY APPARATUS - A relay apparatus provided to a vehicle, performing first data communication with a first communication apparatus arranged outside the vehicle, and performing at least second data communication with multiple second communication apparatuses provided to the vehicle is provided. The relay apparatus includes a permission determination portion and an initiation switch portion. The permission determination portion determines whether first data communication between the first communication apparatus and a target second communication apparatus is permitted. The permission determination portion receives the first communication frame from the first communication apparatus through a connection switch portion determining a connection destination according to a control signal. The initiation switch portion outputs to the connection switch portion, the control signal designating the target second communication apparatus as the connection destination of the first communication apparatus. | 2016-03-03 |
| 20160065299 | METHODS TO RECLAIM UNUSED THROUGHPUT IN AN SDARS SYSTEM - Systems, algorithms and methods for reclaiming unused portions of a satellite broadcast service's bandwidth for new services, utilizing higher performance coding techniques to yield better throughput, are presented. These systems, algorithms and methods achieve the reclaimed bandwidth in a way that is invisible to a legacy receiver, and that does not interfere with its reception of a legacy signal. In one embodiment, new data may be transmitted within a legacy transmission frame, for example within its cluster structure, using the same modulation and synchronization as used for the legacy data. The new data may be inserted into a channel or other subdivision at a head end. In another embodiment, one or more clusters or subdivisions with only new data may be transmitted, using the same modulation and synchronization as the legacy data clusters, but now employing a higher performing FEC and data interleaving structure on those clusters which contain only new data to yield an increase in available throughput. Finally, in a third embodiment, one or more clusters containing only new data may be transmitted, and in said one or more all new data clusters, different modulation and synchronization may be used then that of the legacy data clusters, thus employing a higher performing FEC and data interleaving structure than that of the legacy clusters. Various combinations of these approaches are also presented, as well as a set of novel receivers, or receiver configurations, to implement them and their combinations | 2016-03-03 |
| 20160065300 | AIRCRAFT-NODED DATA COMMUNICATION NETWORK - Defined herein is a system for communicating data includes a first data source that transmits data through the air, and a second data source that is remote from the first data source. The second data source at least one of receives and transmits data through the air. The system further includes at least one aircraft that receives data through the air from the first and second data sources, and transmits data through the air to at least one of the first and second data sources. | 2016-03-03 |
| 20160065301 | LIGHTWEIGHT PAIRING AND CONNECTION TRANSFER PROTOCOL VIA GESTURE-DRIVEN SHARED SECRETS - A gesture is performed by a wireless accessory attempting to pair with a device. The gesture comprises a series of user interactions associated with accessory data detected at the accessory and device data detected at the device. The device begins looking for accessories advertising a Bluetooth service indicating they are attempting to pair. Once an accessory is identified, the device compares the device data to the accessory data for that particular accessory. If the accessory data matches the device data, the gesture detected at the device was made by the accessory and a secure connection can be established. Based on the secure connection, a clock associated with the accessory may synchronize with a clock associated with the device for additional security and fidelity. | 2016-03-03 |
| 20160065302 | Method and Apparatus for Communication - A method including receiving signals at a first frequency and at a second frequency; and switching between the first frequency and the second frequency during one of a plurality of subframes within a radio frame for transmission subsequent to said receiving. | 2016-03-03 |
| 20160065303 | Methods, Apparatuses and System for Monitoring ROADM Optical Network - Provided are methods, apparatuses and a system for monitoring a Reconfigurable Optical Add Drop Multiplexer (ROADM) optical network. The method includes: loading, in an optical signal at a sending end, a wavelength label frequency and attribute information of a channel used for transmitting the optical signal; sending the wavelength label frequency and/or the attribute information; receiving, at a monitoring end, the optical signal and acquiring, from the optical signal, the wavelength label frequency and/or the attribute information of the channel used for transmitting the optical signal; and monitoring the ROADM optical network according to the wavelength label frequency and/or the attribute information. The technical solution solves the technical problem in related art that the ROADM optical network cannot be effectively monitored, and achieves the effective monitoring of the ROADM optical network. | 2016-03-03 |
| 20160065304 | OPTICAL CHANNEL SOUNDER - The present invention relates to an optical channel sounding transmitter apparatus, comprising an optical signal generator for generating an optical carrier signal; an optical modulator for modulating the optical carrier signal with a predetermined training sequence to obtain an modulated optical signal; a first optical transmitter for transmitting the optical carrier signal; and a second optical transmitter for transmitting the modulated optical signal. Further the present invention relates to a coherent optical channel sounding receiver apparatus, comprising a first optical receiver for receiving an optical carrier signal over a first optical channel; a second optical receiver for receiving a modulated optical signal over a second optical channel; an optical down converter for down converting the modulated optical signal using the received optical carrier signal to obtain a down converted signal; and a channel estimator for estimating a channel characteristic of the second optical channel. | 2016-03-03 |
| 20160065305 | OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION DEVICE - An optical transmission system includes a transmitting device and a receiving device, wherein the transmitting device includes a modulating unit that changes a frequency of an optical signal, and the receiving device includes a filtering unit that passes an optical signal in a predetermined frequency band; a measuring unit that measures an intensity of an optical signal that passes through the filtering unit; a detecting unit that detects a center wavelength of the optical signal in accordance with an intensity of the optical signal that is measured when a frequency of the optical signal is changed in a state of a passed band that corresponds to the optical signal; and an output unit that outputs information that indicates the detected center wavelength to the transmitting device, wherein the transmitting device controls a wavelength of the optical signal in accordance with the information from the receiving device. | 2016-03-03 |
| 20160065306 | SYSTEM AND METHOD FOR GREEN COMMUNICATION FOR INTELLIGENT MOBILE INTERNET OF THINGS - A method for green communication for intelligent mobile internet of things includes: communicating with at least one mobile communication device by a lead communication device through visible light communication; determining the current communication environment between the lead communication device and the mobile communication device; controlling the operating mode of the mobile communication device according to the current communication environment; and forming a network with nodes of the network being the lead communication device and the at least one mobile communication device, configuring the lead communication device and the at least one mobile communication device as routers in the network, and transmitting multimedia information to other nodes of the network by using information shaping and compensation algorithms in a digital signal processing format. A system for green communication for intelligent mobile internet of things is also provided. | 2016-03-03 |
| 20160065307 | COMMUNICATION METHOD - A communication method for obtaining information from a subject includes obtaining image information of the subject in an image information-taking mode, obtaining visible light data of the subject in a visible light communication mode, and setting a shutter speed and an international organization for standardization (ISO) speed rating or a gain value for the visible light communication mode. The visible light communication mode is a different mode from the image information-taking mode. Also, in the setting, the shutter speed for the visible light communication mode is set to be faster than a shutter speed for the image information-taking mode, and the ISO speed rating or the gain value for the visible light communication mode is set to be greater than an ISO speed rating or a gain value for the image information-taking mode. | 2016-03-03 |
| 20160065308 | ELECTRO-OPTICAL PAYLOAD FOR HIGH-BANDWIDTH FREE SPACE OPTICAL COMMUNICATIONS - An electro-optical payload for free space optical communication includes: a plurality of optical beam expanders, each for receiving a respective optical signal of incoming optical signals; an optical cross-connect switch for directing respective optical input signals to respective optical output signals; an electrical-to-optical conversion circuit coupled to an input of the optical cross-connect switch for converting an electrical signal to an optical signal for inputting to the optical cross-connect switch; an optical-to-electrical conversion circuit coupled to an output of the optical cross-connect switch for converting an optical signal output from the optical cross-connect switch to an electrical signal; and an electrical regeneration circuit including a second optical-to-electrical conversion circuit coupled to an output of the optical cross-connect switch and a second electrical-to-optical conversion circuit coupled to an input of the optical cross-connect switch for converting an optical out signal of the optical cross-connect switch to an electrical signal. | 2016-03-03 |
| 20160065309 | Method of Monitoring an Optoelectronic Transceiver with Multiple Flag Values for a Respective Operating Condition - The circuit monitors operation of an optoelectronic transceiver that includes a laser transmitter and a photodiode receiver. The circuit includes analog to digital conversion circuitry configured to convert a first analog signal corresponding to a first operating condition of said optoelectronic transceiver into a first digital value, and convert a second analog signal corresponding to a second operating condition of said optoelectronic transceiver into a second digital value corresponding to a second operating condition. The circuit also includes a memory configured to store the first digital value in a first memory location that is mapped to a predefined and unique first address and to store the second digital value in a second memory location that is mapped to a predefined and unique second address. The circuit includes an interface configured to enable a host external to the optoelectronic transceiver to access the first digital value using the first address and to access the second digital value using the second address. | 2016-03-03 |
| 20160065310 | OPTICAL COMMUNICATION APPARATUS AND METHOD OF CONTROLLING OPTICAL MODULATOR - An optical communication apparatus includes an optical modulator having a Mach-Zehnder interferometer with a pair of waveguides and configured to modulate a phase of light emitted from a light source, a first controller configured to control a first substrate bias voltage or an amplitude of a first drive signal applied to a first waveguide of the waveguide pair of the optical modulator based upon an output of the optical modulator or a wavelength of the light source; and a second controller configured to control a second substrate bias voltage or an amplitude of a second drive signal applied to a second waveguide of the waveguide pair of the optical modulator independently from the first controller, based upon the output of the optical modulator or the wavelength of the light source. | 2016-03-03 |
| 20160065311 | FEEDBACK FOR ELECTRONIC PRE-DISTORTION IN AN OPTICAL TRANSMITTER - We disclose an optical transponder, in which one or more all-electronic feedback paths are used to obtain a relatively accurate estimate of the device-specific signal distortions in the transmitter portion thereof. The obtained estimate is used to enable the digital signal processor of the optical transponder to carry out electronic pre-distortion (EPD) that can significantly reduce or cancel these signal distortions without the use of detailed factory-calibration measurements or optics dedicated to feedback purposes. The use of all-electronic feedback paths may enable a beneficial reduction in the cost of the EPD functionality, e.g., by eliminating a significant extra cost associated with the implementation of optically generated feedback. | 2016-03-03 |
| 20160065312 | OPTICAL TRANSMISSION DEVICE, NONLINEAR DISTORTION COMPENSATION METHOD, AND NONLINEAR DISTORTION PRE-EQUALIZATION METHOD - An optical receiver includes a dividing unit, a control unit, and a compensating unit. The dividing unit divides an optical transmission signal into a plurality of frequency components by a set number of divisions and a set division bandwidth. The control unit controls the number of divisions and the division bandwidth on the basis of transmission path information about an optical transmission line through which the optical transmission signal is transmitted and signal information about the optical transmission signal. The compensating unit compensates optical nonlinear distortion of each of the frequency components divided by the dividing unit. | 2016-03-03 |
| 20160065313 | RECOVERING DATA FROM QUADRATURE PHASE SHIFT KEYING MODULATED OPTICAL SIGNALS - Systems, devices and techniques for processing received QPSK modulated optical signals include sampling the received signal at twice the baud rate, thereby producing samples that are then processed as 9-QAM symbols using a decision directed least squares optimization method. A third stage of channel equalization is filtering performs channel equalization to mitigate linear filtering effects along the transmission link. Data bits are then recovered from the resulting symbol estimates. The received optical signal may also include dual polarized signals for increased bandwidth capacity. | 2016-03-03 |
| 20160065314 | Self-coherent robust spectrally efficient optical transmission systems - Coherent reconstruction of dual polarized data and pilot signals without local oscillator or laser. | 2016-03-03 |
| 20160065315 | System and Method for Recovering Carrier Phase in Optical Communications - The embodiments of the invention provide methods to deal with problems of cycle slips, angular skew, and residual phase noise for high-speed optical communications employing any arbitrary high-order multi-dimensional modulation formats. The embodiments use a slip process analyzer, a skew angle estimator, and a phase noise variance estimator to provide feedforward soft-decision information of a carrier phase recovery (CPE) for more accurate likelihood calculation based on a high-order hidden Markov model (HMM). The log-likelihood calculation can be done jointly in dual polarization with joint Markov state transition. Some embodiments use a kernel filter or a particle filter for log-likelihood calculation. | 2016-03-03 |
| 20160065316 | SIGNAL RECOVERY CIRCUIT AND SIGNAL RECOVERY METHOD - A signal recovery circuit includes: a data acquisition circuit configured to collect a received data signal according to a transition edge of a received signal recovery clock; and a phase adjustment circuit configured to adjust a phase relationship between the transition edge of the received signal recovery clock and the received data signal according to a data value of the received data signal to be acquired by the data acquisition circuit. | 2016-03-03 |
| 20160065317 | METHODS AND CIRCUITRY TO TRIM COMMON MODE TRANSIENT CONTROL CIRCUITRY - Embodiments herein include a replica communication path and monitor circuit to provide increased common mode transient immunity. As its name suggests, the monitor circuit monitors the replica communication path and produces an adjustment signal (common mode transient adjustment signal) to cancel presence of a common mode transient signal in one or more other communication paths conveying data signals. | 2016-03-03 |
| 20160065318 | SELF INTERFERENCE CANCELLATION - A method performed under control of a first device capable of full duplex radio communications may include transmitting a first frame to a second device; estimating a channel response of self interference cancellation (SIC), based, at least in part, on the first frame; and determining whether the estimated channel response is usable. | 2016-03-03 |
| 20160065319 | Method and Apparatus for Calculating a Coverage Signal Strength Indicator - Apparatus and method pertaining to the calculation of at least one value that represents, at least in part, wireless reception signal strength from the perspective of both a local wireless receiver and a remote receiver that receives wireless transmissions from a local wireless transmitter. By one approach the apparatus directly determines the wireless reception signal strength from the perspective of the local wireless receiver and indirectly determines the wireless reception signal strength from the perspective of the remote receiver. | 2016-03-03 |
| 20160065320 | DETERMINING PROPAGATION DELAY OF COMMUNICATIONS IN DISTRIBUTED ANTENNA SYSTEMS, AND RELATED COMPONENTS, SYSTEMS, AND METHODS - Components, systems, and methods for determining propagation delay of communications in distributed antenna systems are disclosed. The propagation delay of communications signals distributed in the distributed antenna systems is determined. If desired, the propagation delay(s) can be determined on a per remote antenna unit basis for the distributed antenna systems. The propagation delay(s) can provided by the distributed antenna systems to a network or other system to be taken into consideration for communications services or operations that are based on communications signal delay. As another non-limiting example, propagation delay can be determined and controlled for each remote antenna unit to uniquely distinguish the remote antenna units. In this manner, the location of a client device communicating with a remote antenna unit can be determined within the communication range of the remote antenna unit. | 2016-03-03 |
| 20160065321 | CONTENT SELECTION BASED ON SIMULCAST DATA - A computer system receives information snippets from a mobile device. The information snippets are extracted from a simulcast of a data stream of a radio broadcast received on the mobile device. The system identifies content metadata from the information snippets. The content metadata describes one or more features of the radio broadcast. The system selects a radio station from a radio station repository based on attributes of the radio station. One of the selection criteria is that the attributes of the radio station match at least a portion of the content metadata. The system presents a reference to the radio station to the mobile device as a recommendation. | 2016-03-03 |
| 20160065322 | NODE AND METHOD FOR SELECTING SYNCHRONIZATION SOURCE - The disclosure relates to a node capable of selecting a first port to receive a first synchronization source in a system comprising a plurality of nodes. The node comprises a memory configured to memorize states of each port of the node in a corresponding tree. At least one tree is formed with ports of the plurality of connected nodes according to a second synchronization protocol. The node further comprises a first synchronization source selection unit configured to select the first port according to states of the ports of the node. The first synchronization source so selected will not form a loop in the network. There is also provided a method used in the node. | 2016-03-03 |
| 20160065323 | Coded Imaging and Multi-User Communications Systems - A coded imaging and multi-user communications systems using novel codes, algorithms to develop such codes, and technological implementations to use the codes for various types of systems involving multiple (or single) transmitters and multiple (or single) receivers of signals (which could include but are not limited to electromagnetic radiation, acoustic waves, other types of waves or data) as a function of time- or-space. | 2016-03-03 |
| 20160065324 | ALL-OPTICAL REGENERATION SYSTEM FOR OPTICAL WAVELENGTH DIVISION MULTIPLEXED COMMUNICATION SYSTEMS - The invention relates to an all-optical regeneration system for regeneration of optical wavelength division multi-plexed WDM data signals in an optical WDM communication system. The system comprises a WDM-to-Optical time domain multi-plexing OTDM, WDM-to-OTDM, converter, capable of converting an input WDM data signal comprising multiple wavelength channels into an input OTDM data signal comprising multiple time multiplexed time channels. The system further comprises an all-optical regenerator unit being configured for regenerating the input OTDM data signal into an output OTDM data signal. The system additionally comprises an OTDM-to-WDM converter for converting the output OTDM data signal to an output WDM data signal. An input of the all-optical regenerator unit is in optical communication with an output of the WDM-to-OTDM converter, and an output of the all-optical regenerator unit is in optical communication with an input of the OTDM-to-WDM converter. The invention further relates to a method for all-optical regeneration of WDM data signals. | 2016-03-03 |
| 20160065325 | MUXPONDER AND METHOD OF CONVERTING A PLURALITY OF TRIBUTARY OPTICAL COMMUNICATIONS SIGNALS HAVING A FIRST BIT RATE INTO AN OPTICAL LINE SIGNAL HAVING A SECOND, HIGHER BIT RATE - A muxponder comprising: modulation format conversion apparatus comprising:
| 2016-03-03 |
| 20160065326 | OPTICAL TRANSMISSION/RECEPTION SYSTEM, TRANSMITTER, RECEIVER, AND OPTICAL TRANSMISSION/RECEPTION METHOD - An optical transmission and reception system includes a transmitter and receiver. The transmitter differentially encodes control information to generate a differentially coded signal; uses the differentially coded signal to modulate a signal sequence in which electricity concentrates at a particular frequency; applies time-division multiplexing on the modulated signal sequence and a primary signal in one of two polarized wave components, and applies time-division multiplexing on the other polarized wave components and the signal sequence itself; and polarization-multiplexes the both of the time-division multiplexed polarized waves into an optical signal; and transmits the optical signal to the receiver. The receiver polarization-demultiplexes the received optical signal to generate two polarized wave signals; extracts the signal sequence in which electricity concentrates at the particular frequency from the two polarized wave signals; and applies differential detection on the extracted signal sequence to demodulate the control information. | 2016-03-03 |
| 20160065327 | SIGNALING DIFFERENT MCS SETS FOR DIFFERENT BANDWIDTHS - Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to using fields of a frame to indicate different modulation and coding scheme (MCS) sets for communications on a first bandwidth and on a second bandwidth. | 2016-03-03 |
