Transmitters Patents (Class 375/295)
  • Patent number: 9800260
    Abstract: An apparatus comprises a delta-sigma analog-to-digital converter (ADC) and baseband processing circuitry. The delta-sigma ADC includes a plurality of integrator stages connected in series, including a first integrator stage operatively coupled to an input of the delta-sigma ADC; a main quantizer circuit including a main ADC circuit and a main digital-to-analog converter (DAC) circuit, wherein an input to the main ADC circuit is operatively coupled to the plurality of integrator stages; and a first feedback circuit path operatively coupled from an output of the first integrator stage to the input of the delta-sigma ADC, wherein the first feedback circuit path is configured to subtract an output voltage of the first integrator stage from the input of the delta-sigma ADC. The baseband circuitry is configured to activate the first feedback circuit path when detecting that the input voltage increases to cause distortion in the delta-sigma ADC.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: October 24, 2017
    Assignee: Analog Devices Global
    Inventor: Debopam Banerjee
  • Patent number: 9787336
    Abstract: Embodiments of a mobile communication device and method for digital pre-distortion (DPD) are disclosed herein. The mobile communication device may scale a sequence of input samples by per-sample scale factors to generate a sequence of output samples for input to a power amplifier (PA), the input samples scaled to compensate for distortion of the PA. The mobile communication device may generate the scale factors based on per-sample inner products between a common weight vector and a per-sample distortion compensation vectors. The mobile communication device may generate the distortion compensation vectors based on vector outputs of predetermined distortion compensation functions. The mobile communication device may update the common weight vector based on a distortion error sequence between the sequence of output samples and a sequence of feedback samples.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 10, 2017
    Assignee: Intel IP Corporation
    Inventor: Armando Cova
  • Patent number: 9780920
    Abstract: The present disclosure relates to an apparatus and method supportive of distributed turbo coding based on relay network utilizing a noisy network coding scheme. For this, included is a relay node operating as a component encoder to relay a signal from a source node to a next node in a distributed turbo coding scheme. The relay node quantizes the signal transmitted from the source node and then interleaves the quantized signal using a predetermined pattern to distinguish the signal transmitted from the source node from a signal to be output from an opposing node, so that the signal transmitted from the source node is relayed to the next node based on a noisy network coding scheme.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: October 3, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Hoon Lim, Won-Jong Noh, Jong-Bu Lim, Sang-Seok Yun, Sung-Ho Chae, Jeong-Seok Ha
  • Patent number: 9781012
    Abstract: The behavior of multiple users with access to a multi-tenant resource can be monitored and compliance enforced by monitoring state information for each user. The state information can be captured across a level of a network environment, such that any activity across that layer can be monitored and the data aggregated to give a global view of user behavior. If user behavior is determined to fall outside an acceptable range of behavior, any of a number of remedial actions can be taken, which can include notifying the user, billing the user for the inappropriate behavior, or modifying that behavior outside of the control of the user.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: October 3, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Eric Jason Brandwine, Swaminathan Sivasubramanian, Bradley Eugene Marshall, Tate Andrew Certain
  • Patent number: 9780850
    Abstract: 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.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: October 3, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Eko Onggosanusi, Runhua Chen, Ralf Bendlin
  • Patent number: 9780975
    Abstract: A Faster-Than-Nyquist (FTN) signal transmission apparatus and method thereof. The signal transmission apparatus includes a pilot interference estimator and compensator configured to estimate interference on pilot symbols by a Faster-Than-Nyquist (FTN) signal generated by FTN modulating a sequence of data symbols, and generate a compensated pilot symbol sequence to cancel the estimated interference; a pilot FTN modulator configured to generate an FTN pilot signal in which inter-pilot symbol interference does not occur, by performing FTN pulse-shaping on the compensated pilot symbol sequence; and a transmitter configured to transmit an FTN data signal and the FTN pilot signal.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: October 3, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sang Woon Kwak, Joung Il Yun, Myung Sun Baek, Young Su Kim, Hyoung Soo Lim, Nam Ho Hur
  • Patent number: 9781560
    Abstract: Methods, systems, and devices are described for wireless communication. An example method includes receiving, by a first wireless communication device having a plurality of antennas disposed at a localized position, a plurality of fine timing management (FTM) messages from a second wireless communication device. The example method includes transmitting, by the first wireless communication device, a plurality of FTM responses to the second wireless communication device. Each of the plurality of FTM responses may be transmitted using a different antenna of the first wireless communication device. The example method also includes estimating a range between the first wireless communication device and the second wireless communication device based at least in part on the plurality of FTM messages.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: October 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang
  • Patent number: 9774481
    Abstract: Systems and methods for using travelling pilots for channel estimation are described herein. In one aspect, wireless communications apparatus is described that comprises a processor configured to divide a plurality of tones on which pilot signals are to be transmitted among a plurality of symbols, wherein each symbol includes less than all of the plurality of tones and the plurality of symbols includes at least a subset of the plurality of tones. The wireless communication apparatus further comprises a transmitter configured to transmit, during a given symbol, pilot signals on the tones included in the given symbol, wherein the tones over which the pilot signals are transmitted are changed from symbol to symbol.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: September 26, 2017
    Assignee: QUALCOMM, Incorporated
    Inventors: Lin Yang, Didier Johannes Richard Van Nee, Hemanth Sampath, Sameer Vermani, Tao Tian
  • Patent number: 9769692
    Abstract: A wireless transmit/receive unit (WTRU) and a dynamic spectrum management (DSM) engine are described. The WTRU includes a transceiver, a radio frequency (RF) spectrum sensing unit and a processing unit. The transceiver transmits over a wireless link. The RF spectrum sensing unit measures information indicative of usage of a spectrum by other devices. The processing unit detects a change in performance of the wireless link, controls the transceiver to transmit a notification to a DSM engine indicating that the change in the performance of the wireless link was detected on a condition that the processing unit detects the change in performance of the wireless link, and receives a sensing task request for the WTRU to measure the information indicative of the usage of the spectrum by other devices based on the notification transmitted to the DSM engine indicating that the change in the performance of the wireless link was detected.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: September 19, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Martino M. Freda, Alpaslan Demir, Athmane Touag, Phillip L. Leithead, Amith V. Chincholi, Jean-Louis Gauvreau
  • Patent number: 9768996
    Abstract: One or more first padding bits are added to information bits to be included in a data portion of a data unit such that the information bits, after being encoded, fill one or more OFDM symbols up to a boundary within a last OFDM symbol. The information bits and the first padding bits are encoded to generate coded bits. After encoding, coded bits corresponding to the last OFDM symbol are padded, or constellation points generated based on the coded bits corresponding to the last OFDM symbol are padded, such that the padded coded bits or the padded constellation points occupy a remaining portion of the last OFDM symbol after the boundary. The last OFDM symbol of the data portion is generated to include the coded information bits corresponding to the last OFDM symbol, the first padding bits and second padding bits or padding constellation points added after encoding.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: September 19, 2017
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Xiayu Zheng, Rui Cao, Mingguang Xu, Sudhir Srinivasa, Jie Huang
  • Patent number: 9763123
    Abstract: Methods and apparatus are disclosed for determining reliability of wireless carriers. An example method includes extracting channel information from messages transmitted to mobile devices at a plurality of locations to determine a quantity of available channels, segregating the extracted channel information into a first group corresponding to channels of a first carrier and a second group corresponding to channels of a second carrier, and determining, with a processor, a relative reliability between the first carrier and the second carrier based on a respective quantity of channels in the first group and the second group.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: September 12, 2017
    Assignee: The Nielsen Company (US), LLC
    Inventor: Dominic H. Ngai
  • Patent number: 9756610
    Abstract: Disclosed are a broadcast signal transmitting apparatus, a broadcast signal receiving apparatus, and a broadcast signal transceiving method in the broadcast signal transmitting and receiving apparatuses.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: September 5, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hotaek Hong, Sangchul Moon, Woosuk Ko
  • Patent number: 9755708
    Abstract: A user equipment device has a control information decoder configured to receive and decode an uplink scheduling grant. A transmit module is configured to receive a rank indicator (RI) extracted by the decoder and adapt a transmission rank in response to the RI. At least two transmit antennas are configured to transmit according to the RI.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: September 5, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Eko N. Onggosanusi, Tarik Muharemovic, Anand G. Dabak, Runhua Chen
  • Patent number: 9749023
    Abstract: Methods and apparatus adapted to address asymmetric conditions in a multi-antenna system. In one embodiment, the multi-antenna system comprises a wireless (e.g., 3G cellular) multiple-input, multiple-output (MIMO) system, and the methods and apparatus efficiently utilize transmitter and receiver resources based at least in part on a detected asymmetric condition. If an asymmetric condition is detected by the transmitter on any given data stream, the transmitter can decide to utilize only a subset of the available resources for that stream. Accordingly, the signal processing resources for that data stream are adapted to mirror the reduction in resources that are necessary for transmission. The transmitter signals the receiver that it will only be using a subset of the resources available, and the receiver adapts its operation according to the signaling data it receives. The multi-antenna system can therefore reduce power consumption as well as increasing spectral efficiency on the network.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: August 29, 2017
    Assignee: APPLE INC.
    Inventor: Hyung-Nam Choi
  • Patent number: 9742612
    Abstract: Embodiments of the present invention relate to the field of communications, and provide a method and a device for transmitting data by using a multidimensional constellation diagram, which can further improve bit error rate-signal to noise ratio performance by means of a multidimensional constellation diagram. The method is: First, bit data is mapped, by using an n-dimensional constellation diagram, into a column vector including n real numbers, then the n real numbers included in the column vector are modulated by using a resource element and sent, and after demodulating the n real numbers from a received signal, a receiving device finds, in the n-dimensional constellation diagram, a constellation point with coordinate values having a closest Euclidean distance to a point with coordinates being the n real numbers, and finally maps the coordinate values of the constellation point back into the bit data.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 22, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Qizhi Zhang
  • Patent number: 9742832
    Abstract: Disclosed is a transmission apparatus or the like that is able to transmit information efficiently. The transmission apparatus, on the basis of history information which includes a service identifier and a message identifier associated therewith, transmits a difference between a third message having a large similarity ratio to a second message included in a specific service and the second message, and a message identifier identifying the second message via a communication network.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: August 22, 2017
    Assignee: NEC CORPORATION
    Inventor: Kyohei Ando
  • Patent number: 9735942
    Abstract: Aspects of the present disclosure provide techniques and apparatus for physical broadcast channel (PBCH) coverage enhancements, for example, for machine type communications (MTC). In aspects, the PBCH coverage enhancements may be applied by non-MTC devices. A method for wireless communications typically performed by a base station (BS) is provided. The method generally includes determining a set of resources for a new physical broadcast channel (PBCH) with enhanced coverage relative to a legacy PBCH and communicating to at least one user equipment (UE) based on the determined set of resources for the new PBCH. In aspects, the new PBCH may be transmitted on a subframe allocated for communicating with MTC devices (MTC subframe).
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: August 15, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Hao Xu, Wanshi Chen, Peter Gaal, Tingfang Ji
  • Patent number: 9734010
    Abstract: A method for encoding an input data block for storage in q-level cells of solid-state memory includes producing a preliminary block from the input data block by modulation encoding at least part of the input block into a first group of qary symbols via a first drift-tolerant encoding scheme, the preliminary block comprising the first group of qary symbols and any remainder of the input block not encoded via the first encoding scheme; generating parity data for the preliminary block via an error-correction encoding scheme; modulation encoding the parity data and any remainder of the input block into a second group of qary symbols via a second drift-tolerant encoding scheme; and supplying the qary symbols of the first and second groups for storage in respective q-level memory cells.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: August 15, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Thomas Mittelholzer, Nikolaos Papandreou, Charalampos Pozidis
  • Patent number: 9729375
    Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The method for receiving broadcast signals, the method comprises receiving the broadcast signals, demodulating the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, parsing a signal frame from the demodulated broadcast signals, MIMO (Multiple-Input and Multiple-Output) decoding service data in the parsed signal frame, decoding signaling data in the parsed signal frame and decoding the MIMO decoded service data.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: August 8, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinyong Choi, Woosuk Ko, Sangchul Moon, Sungryong Hong
  • Patent number: 9729291
    Abstract: Embodiments of the present invention relate to the technical field of communications, and provide a method and device for transmitting a reference signal. The method for transmitting a reference signal comprises: a base station determining an antenna port of a reference signal corresponding to a broadcast channel; the base station determining a complex valued modulation symbol of the reference signal according to a first parameter of the reference signal, wherein the first parameter of the reference signal is determined by the number of resource blocks occupied by the broadcast channel; and the base station transmitting the determined complex valued modulation symbol of the reference signal to a user terminal on the determined antenna port of the reference signal. The present invention can be used in an LTE wireless communication system.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: August 8, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhenfei Tang, Yuanjie Li
  • Patent number: 9729370
    Abstract: The present invention provides a method for transmitting and receiving data in a single carrier frequency division multiple access system to which a precoding matrix is applied, and to a transmitting/receiving apparatus for same. The method for transmitting data comprises the steps of: applying selected mapping algorithm (SLM) sequences of an SLM sequence subset corresponding to a precoding matrix, to respective data; selecting the SLM sequence in which each of the applied data has the smallest peak to average power ratio (PAPR) value; and transmitting the index of the selected SLM sequence and data to which the selected SLM sequence is applied.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: August 8, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinxia Cheng, Sang Boh Yun, Sung Soo Hwang, Seung Hee Han, Sunghwan Kim
  • Patent number: 9730196
    Abstract: Systems and methods presented herein provide for an LTE wireless communication system operating in an RF band with a conflicting wireless system. The LTE system includes a first eNodeB operable to transmit downlink communications to UEs in the RF band and to receive uplink communications from the UEs in the RF band. The first eNodeB is also operable to transmit an LTE control channel across a portion of the RF band, to time divide the LTE control channel into a plurality of subchannels, and to occupy a first of the subchannels. A second eNodeB is operable to detect the LTE control channel and to occupy a second of the subchannels proximate in time to the first subchannel of the first eNodeB.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: August 8, 2017
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Belal Hamzeh, Jennifer Andreoli-Fang
  • Patent number: 9722841
    Abstract: Disclosed are techniques for channel-based coding for wireless communications. A transmitter includes circuitry and multiple antennas. The circuitry selects a subset of the antennas, determines a respective channel response for each of the antennas in the subset, generates a respective coded system for each of the antennas in the subset, and transmits the coded symbols using the antennas in the subset.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: August 1, 2017
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: Ertugrul Guvenkaya, Huseyin Arslan
  • Patent number: 9722722
    Abstract: A data transceiver module, data transmission system incorporating same and methods related thereto, which include optical transmitters configured to receive an information bearing signal and generate an optical signal having a wavelength different from wavelengths generated by others of the plurality of optical transmitters; optical receivers configured to receive an optical signal having a wavelength matching one of the plurality of optical transmitters and convert it to an information bearing electrical signal; and a four level pulse-amplitude-modulator (PAM4) chip generating a pulse-amplitude-modulated information bearing signal input to at least one optical transmitter of the plurality of optical transmitters and receiving the information bearing from at least one optical receiver of the plurality of optical receivers and converting it to an information signal using pulse amplitude demodulation. Alternative embodiments include coherent-detection-based optical coherent receiver and coherent transmitter.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: August 1, 2017
    Assignee: NEOPHOTONICS CORPORATION
    Inventor: Winston I. Way
  • Patent number: 9722591
    Abstract: A phase adjustment device includes: a detection signal generator configured to generate a pair of first and second detection signals for detecting a phase difference between two signals whose phases have been adjusted by two phase adjusters, respectively, a maximum sensitivity phase difference of one of the first and second detection signals being not overlap with that of the other, and detection sensitivity of the phase difference becoming maximum at the maximum sensitivity phase difference; a detection signal selector configured to select one of the first and second detection signals whose predetermined range around the maximum sensitivity phase difference covers a preset phase difference; and a phase controller configured to control an amount of phase-adjusting by at least one of the two phase adjusters based on a difference between the phase difference detected within the predetermined range using the selected detection signal and the preset phase difference.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: August 1, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Toshihiro Shimura
  • Patent number: 9722816
    Abstract: There is provided a method for processing a set of input symbols. The method is performed by a transmitter. The method comprises acquiring a set of input symbols. The method comprises generating a set of precoded symbols from the set of input symbols by subjecting the set of input symbols to a coding vector. The method comprises generating a transmission signal comprising a sequence of pulse forms from the set of precoded symbols by pulse shaping the set of precoded symbols. The coding vector is based on a model vector modelling intersymbol interference experienced by the pulse forms.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: August 1, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Martin Sjödin
  • Patent number: 9716516
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to perform a low-density parity check (LDPC) encoding on input bits using a parity check matrix to generate an LDPC codeword comprising information word bits and parity bits; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: July 25, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong-sil Jeong, Kyung-joong Kim, Se-ho Myung, Daniel Ansorregui Lobete, Belkacem Mouhouche
  • Patent number: 9712346
    Abstract: A continuous phase modulation method comprises the following steps: receiving a sequence of digital data symbols a(n) to be emitted; transforming the sequence of symbols a(n) to be emitted into a transformed sequence of symbols b(n), each symbol b(n) of which is equal to the sum of a symbol a(n) to be emitted and of a corrective factor equal to a transformation Tf applied to a plurality of differences (a(n)-a(n?1)) between two consecutive symbols to be emitted, the transformation Tf applied being a combination c of at least two differences between two consecutive symbols of the sequence to be emitted, transformed by the application of a non-linear function f; filtering the sequence of transformed symbols b(n) with a shaping filter and modulating the filtered sequence with a phase modulator; said transformation Tf being defined so as to minimize interference between modulated symbols filtered by a receiving filter.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: July 18, 2017
    Assignee: Thales
    Inventors: François Baptiste, Adrien Le Naour, Alban Denicourt, Célien Vincent, Valentin Felix
  • Patent number: 9712361
    Abstract: Method for generating a built-symbol including plurality of sub-symbols for transmission including data of an original symbol of an orthogonal multi-carrier modulation-signal reducing the peak-to-average power-ratio (PAPR) and increase its robustness against Doppler-effects of the orthogonal multi-carrier modulation-signal, the original symbol lasting a duration, Ts and carried by N-tones; also including: applying intrinsic temporal diversity properties of complex N-points Inverse-Fast-Fourier-Transform to the original symbol, where plurality of sub-symbols number is M, each M sub-symbols lasts Ts/M and is carried by N/M disjoint-tones, the M sub-symbols are time-multiplexed, so the time-multiplexed built-symbol contains all-data at the same rate of the original symbol. The built-symbol is demodulated, utilizing an orthogonal multi-carrier receiver.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: July 18, 2017
    Assignee: GREENWAVES TECHNOLOGIES
    Inventor: Denis Julien Gilles Mestdagh
  • Patent number: 9712350
    Abstract: Aspects of the subject disclosure may include, for example, a transmission device that includes at least one transceiver configured to modulate data to generate a plurality of first electromagnetic waves in accordance with channel control parameters. A plurality of couplers are configured to couple at least a portion of the plurality of first electromagnetic waves to a transmission medium, wherein the plurality of couplers generate a plurality of second electromagnetic waves that propagate along the outer surface of the transmission medium. A training controller is configured to generate the channel control parameters based on channel state information received from at least one remote transmission device. Other embodiments are disclosed.
    Type: Grant
    Filed: April 9, 2016
    Date of Patent: July 18, 2017
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Robert Bennett, Irwin Gerszberg, Farhad Barzegar, Donald J Barnickel, Thomas M. Willis, III
  • Patent number: 9705990
    Abstract: The disclosure includes a system and method for communicating digital data from a mobile client device to a mobile system. The system includes a processor and a memory storing instructions that, when executed, cause the system to: obtain journey context data that includes data describing a future journey; determine digital data to transmit to the mobile system based on the journey context data; detect a presence of the mobile system; verify that the digital data is valid for the mobile system based on the journey context data; and send the digital data to the mobile system responsive to detecting the presence of the mobile system and the digital data being valid for the mobile system.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: July 11, 2017
    Inventors: Matthew Kresse, Vinuth Rai, Roger Melen
  • Patent number: 9705718
    Abstract: An apparatus including an encoder for encoding service data corresponding to each of a plurality of data transmission path, an encoder for encoding signaling data, wherein the signaling data includes static data and dynamic data, a frame builder for building signal frames, wherein each of signal frames includes the encoded service data and the encoded signaling data, wherein each of signal frames belongs to one of the broadcast services, wherein the static data remain constant in the signal frames belonging to the broadcast service in a duration of a super frame and the dynamic data changes by the signal frames, a modulator for modulating the signal frames by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals carrying the modulated signal frames.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 11, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinwoo Kim, Jongwoong Shin, Woosuk Ko, Jaeho Hwang, Sungryong Hong
  • Patent number: 9706315
    Abstract: A frequency-shift-keying (FSK) transceiver for use in a hearing aid system and having a resonant circuit including a transceiver inductance (L1), the resonant circuit having a resonance frequency, and a transfer function where gain and phase are frequency dependent, wherein the transceiver includes an FSK modulator receiving a data stream, and in response thereto outputting an FSK modulated signal to the resonant circuit for wireless transmission. The transceiver includes a controller monitoring the data stream received by the FSK modulator, and a phase equalizer unit controlled by the controller for substantially equalizing the phase distortion introduced by the frequency dependent resonant circuit. The invention also provides a hearing aid and a method of operating an FSK transceiver.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: July 11, 2017
    Assignee: WIDEX A/S
    Inventor: Niels Ole Knudsen
  • Patent number: 9706514
    Abstract: Techniques are presented herein for improving location determination of a wireless device in environments where there can be multipath issues. A wireless device having a plurality of antennas receives a wireless transmission from a target device whose location is to be determined. Channel state information data is generated based on reception of the transmission at the plurality of antenna. The channel state information data is separated or partitioned into subcarrier group specific data for each of a plurality of groups of subcarriers within a bandwidth of the received transmission. Location probability data is computed for each of the plurality of groups of subcarriers from the subcarrier group specific data for respective ones of the plurality of groups of subcarriers. The location probability data for the plurality of groups of subcarriers is combined to produce aggregate location probability data, from which a location of the target device is determined.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: July 11, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew A. Silverman, Paul J. Stager, Brian D. Hart
  • Patent number: 9705958
    Abstract: Disclosed is a transmission apparatus or the like that is able to transmit information efficiently. The transmission apparatus, on the basis of history information which includes a service identifier and a message identifier associated therewith, transmits a difference between a third message having a large similarity ratio to a second message included in a specific service and the second message, and a message identifier identifying the second message via a communication network.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: July 11, 2017
    Assignee: NEC CORPORATION
    Inventor: Kyohei Ando
  • Patent number: 9705575
    Abstract: A user equipment (UE) capable of communicating with a base station includes a transceiver configured to receive a signal comprising a CSI process configuration, wherein the CSI process configuration comprises a plurality of CSI-RS resource configurations to identify CSI-RS resources, and a controller configured to derive a first PMI index, i11 utilizing a first non-precoded CSI-RS on a first non-precoded CSI-RS resource, derive a second PMI index, i12 utilizing a second non-precoded CSI-RS on a second non-precoded CSI-RS resource, derive a third PMI index, i2 utilizing a beamformed CSI-RS on a beamformed CSI-RS resource, and cause the transceiver to transmit a CSI feedback comprising the three PMI indices i11, i12 and i2 to the base station. A base station capable of communicating with UE a transmitter configured to transmit a signal comprising a CSI process configuration, wherein the CSI process configuration comprises a plurality of CSI-RS resource configurations.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: July 11, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Han Nam, Md. Saifur Rahman, Taeyoung Kim, Eko Onggosanusi, Jeehwan Noh
  • Patent number: 9698953
    Abstract: Provided are a method and an apparatus for signal transmission in a wireless communication system. The apparatus comprises: an information processor for generating a first information sequence based on a first transmission symbol and a first resource index, and a second information sequence based on a second transmission symbol and a second resource index; a reference signal generator for generating a different reference signal depending upon whether a first resource block indicated by the first resource index and a second resource block indicated by the second resource index are the same; and an antenna for transmitting a signal generated based on the first information sequence, the second information sequence, and the reference signal sequence.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: July 4, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Seung Hee Han, Moon Il Lee
  • Patent number: 9698852
    Abstract: A wireless data transceiver comprises a local oscillator configured to generate a first time-varying signal of a first frequency at an output of the local oscillator. The transceiver further comprises a local oscillator interface circuit coupled to the local oscillator. The local oscillator interface circuit is configured to generate a second time-varying signal of the first frequency with negative conductance at an output of the local oscillator interface circuit. The negative conductance is generated based on capacitive degeneration. The transceiver further comprises a frequency mixer coupled to the output of the local oscillator interface circuit. The frequency mixer is configured to generate a third time-varying signal of a second frequency based on the second time-varying signal.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: July 4, 2017
    Assignee: Maja Systems, Inc.
    Inventor: Joy Laskar
  • Patent number: 9699785
    Abstract: A distributed antenna and backhaul system provide network connectivity for a small cell deployment. Rather than building new structures, and installing additional fiber and cable, embodiments described herein disclose using high-bandwidth, millimeter-wave communications and existing power line infrastructure. Above ground backhaul connections via power lines and line-of-sight millimeter-wave band signals as well as underground backhaul connections via buried electrical conduits can provide connectivity to the distributed base stations. An overhead millimeter-wave system can also be used to provide backhaul connectivity. Modules can be placed onto existing infrastructure, such as streetlights and utility poles, and the modules can contain base stations and antennas to transmit the millimeter-waves to and from other modules.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: July 4, 2017
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Paul Shala Henry, Donald J Barnickel, Farhad Barzegar, George Blandino, Irwin Gerszberg, Thomas M. Willis, III
  • Patent number: 9697438
    Abstract: Image description and image recognizable method, it contain (a) It obtain an image which possess plural pixels. (b) It determines a starting position in the image. (c) In the image, From the starting point along the trajectory of the former spiral aggregation makes a pixel sampling, and the pixel on the trajectory rank to the former spiral aggregation. (d) the angle increases with the increase of the variance, it forming a the angle of the latter spiral aggregation. From the starting point along a trajectory of the former spiral aggregation makes the pixel sample, and the pixel on the trajectory rank to the former spiral aggregation. (e) It decides how many frequencies the angle variation increase, and repeatedly performs the step (d). After obtaining a plurality of the latter spiral aggregation, the pixel corresponds to the value. (f) It ranks the former spiral aggregation and the latter spiral aggregation. Then, spiral aggregation map will be formed and recorded the every value of the pixel.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: July 4, 2017
    Assignee: YUAN-ZE UNIVERSITY
    Inventors: Huang-Chia Shih, Kuan-Chun Yu
  • Patent number: 9692494
    Abstract: Methods, systems, and apparatuses are described for dynamic switching between wireless multiple access schemes. In some aspects, a plurality of characteristics corresponding to a respective plurality of transmit/receive beam forming direction pairs of a wireless communication channel may be identified, and a wireless multiple access schemes used for communication in the wireless communication channel may dynamically be switched based at least in part on the identified plurality of characteristics, the wireless multiple access schemes comprising orthogonal frequency division multiple access (OFDMA) and single-carrier frequency division multiple access (SC-FDMA).
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: June 27, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Jung Ho Ryu, Sundar Subramanian, Junyi Li, Ashwin Sampath
  • Patent number: 9692519
    Abstract: An apparatus includes an optical transmitter configured to provide an optical signal amplitude-modulated among M different levels. A constellation control module is configured to provide a drive signal to control the optical signal. A feedback module is configured to receive a measure of spacing between amplitude peaks of a symbol constellation of the optical signal. The feedback module is further configured to regulate the constellation control module to adjust the optical signal in response to the measure of spacing.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: June 27, 2017
    Assignee: Alcatel Lucent
    Inventors: Chongjin Xie, Po Dong, Peter J Winzer
  • Patent number: 9692528
    Abstract: The present document discloses a device for improving receiving and transmitting performance of radio frequency link, comprising a radio frequency transmitting link, a radio frequency receiving link and a test link, wherein a first node is set between a power amplifier and a contact spring of first antenna in the radio frequency transmitting link, the first node is connected to a first on-off port of a radio frequency main switch in the test link; a second node is set between a receiving filter and a contact spring of second antenna in the radio frequency receiving link, the second node is connected to a third on-off port of the radio frequency main switch in the test link; and a second on-off port of the radio frequency main switch in the test link is connected to ground via a resistor.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: June 27, 2017
    Assignee: ZTE CORPORATION
    Inventors: Zhenyu Wang, Chengzan Zhang, Yuqiang Lai
  • Patent number: 9693339
    Abstract: In a single-carrier frequency division multiple access (SC-FDMA) system that utilizes interleaved FDMA (IFDMA) or localized FDMA (LFDMA), a transmitter generates modulation symbols for different types of data (e.g., traffic data, signaling, and pilot) and performs code division multiplexing (CDM) on at least one data type. For example, the transmitter may apply CDM on signaling and/or pilot sent on frequency subbands and symbol periods that are also used by at least one other transmitter. To apply CDM to a given data type (e.g., signaling), the transmitter performs spreading on the modulation symbols for that data type with an assigned spreading code. CDM may be applied across symbols, samples, samples and symbols, frequency subbands, and so on. The transmitter may perform scrambling after the spreading. The transmitter generates SC-FDMA symbols of the same or different symbol durations for traffic data, signaling, and pilot and transmits the SC-FDMA symbols.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: June 27, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Ravi Palanki, Aamod Dinkar Khandekar, Arak Sutivong
  • Patent number: 9692628
    Abstract: Various embodiments of wireless communication systems and methods in which the system seamlessly dual-uses a receiver chain for incoming transmissions and for other signal sensing purposes. The system is configured such that there are multiple receiver chains, and at least one receiver chain alternates between receiving a communication signal with information payload and receiving other signals solely for the purposes of monitoring and/or improving some aspects of the system. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which have passes through a power amplifier with amplifier distortion characteristics. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which may be associated with background noise, or other radio transmissions.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: June 27, 2017
    Assignee: Redline Communications Inc.
    Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
  • Patent number: 9693175
    Abstract: A wireless communication device generates and transmits wireless broadband signals at a power level that is below a spurious emissions mask such that the transmitted wireless broadband signals occupy a designated frequency spectrum band. A bandwidth of the wireless broadband signals may occupy approximately 800 MHz within a range of 0 Hz to 1 GHz. The transmit power utilized for transmitting the wireless broadband signals may be spread over a bandwidth of approximately 300 MHz within the 800 MHz bandwidth. The spreading results in a power spectral density of the transmitted wireless broadband signals approximating thermal noise at a distance of approximately 3 meters. Available channels within the designated frequency spectrum band may be sensed for the transmission of the wireless broadband signals. A plurality of the sensed available channels may be aggregated for the transmission of the wireless broadband signals.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: June 27, 2017
    Assignee: MAXLINEAR, INC.
    Inventors: Curtis Ling, Timothy Gallagher
  • Patent number: 9680615
    Abstract: A method of operating an eNB in a wireless communication network is provided. The method comprises transmitting, by the eNB to a UE, configuration information of first and second sets of CSI-RS resources, wherein the first set of CSI-RS resources is used for long term measurement and the second set of CSI-RS resources is used for short term CSI feedback.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: June 13, 2017
    Assignee: BlackBerry Limited
    Inventors: Shiwei Gao, Hua Xu, Shiguang Guo, Jack Anthony Smith, Yongkang Jia, Masoud Ebrahimi Tazeh Mahalleh, Dongsheng Yu, Robert Mark Harrison
  • Patent number: 9681386
    Abstract: This disclosure relates to low energy communication techniques. According to some embodiments, a wireless transmission may be received by a wireless device. The wireless transmission may include a physical layer (PHY) preamble and PHY data. The PHY preamble may include destination information indicating a destination and length information indicating a length (or duration) of the wireless transmission. The destination and length information may be included prior to a portion of the PHY preamble configured for channel estimation. The wireless device may determine whether the wireless transmission is destined to the wireless device based on the destination information. If the wireless transmission is not destined to the wireless device, the wireless device may drop a remainder of the wireless transmission.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: June 13, 2017
    Assignee: Apple Inc.
    Inventors: Syed Aon Mujtaba, Joonsuk Kim
  • Patent number: 9673837
    Abstract: Techniques to increase the capacity of a W-CDMA wireless communications system. In an exemplary embodiment, early termination (400) of one or more transport channels on a W-CDMA wireless communications link is provided. In particular, early decoding (421, 423) is performed on slots as they are received over the air, and techniques are described for signaling (431, 432) acknowledgment messages (ACK's) for one or more transport channels correctly decoded to terminate the transmission of those transport channels. The techniques may be applied to the transmission of voice signals using the adaptive multi-rate (AMR) codec. Further exemplary embodiments describe aspects to reduce the transmission power and rate of power control commands sent over the air, as well as aspects for applying tail-biting convolutional codes (1015) in the system.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: June 6, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Yisheng Xue, Mingxi Fan, Jiye Liang
  • Patent number: RE46458
    Abstract: A digital television transmitting system includes a frame encoder, a block processor, a group formatter, and a multiplexer. The frame encoder forms an enhanced data frame and encodes the data frame for error correction and for error detection. The block processor further encodes the encoded data frame at a rate of 1/2 or 1/4, and the group formatter divides the encoded data frame into a plurality of enhanced data blocks and maps the divided data blocks into a plurality of enhanced data groups, respectively. The multiplexer multiplexes the enhanced data groups with main data.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: June 27, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyoung Gon Lee, In Hwan Choi, Kook Yeon Kwak, Byoung Gill Kim, Won Gyu Song, Sung Ryong Hong, Jong Moon Kim, Jae Hyung Kim, Jin Woo Kim