Patents Examined by James M Perez
  • Patent number: 10560162
    Abstract: A transmit diversity method, a device, and a system are described herein. The method includes: measuring, by a second network device, channel state information based on a pilot signal, and sending rank index information and precoding matrix index information to a first network device based on the channel state information; receiving, by the first network device, the rank index information and the precoding matrix index information that are sent by the second network device; determining a diversity coding scheme based on the rank index information; determining a precoding matrix based on the precoding matrix index information; and performing transmission processing on to-be-transmitted data based on the diversity coding scheme and the precoding matrix.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 11, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kunpeng Liu, Qiang Wu, Leiming Zhang
  • Patent number: 10554248
    Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing correlations with combinational pseudo-random noise (PRN) codes generated for different bit positions. The GNSS receiver receives a signal including a PRN code modulated by CSK to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes, each representing a different shift in chips to the PRN code. The GNSS receiver performs a chip-by-chip linear combination of a group of receiver codes for each bit position of the CSK modulated symbol. The GNSS receiver correlates the received signal with each combinational PRN code to produce a binary value that is the CSK modulated symbol.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: February 4, 2020
    Assignee: NovAtel Inc.
    Inventors: David Brown, Patrick C. Fenton
  • Patent number: 10547482
    Abstract: Disclosed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the PLP data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: January 28, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaehyung Kim, Woosuk Ko, Sungryong Hong
  • Patent number: 10547475
    Abstract: A receiver device includes circuitry and memory. The circuitry converts an input signal into a data signal that includes data symbols transmitted in successive unit intervals (UIs), determines a first threshold associated with a first symbol type, adjusts a gain of the receiver device such that an average amplitude of data signal samples, when receiving data symbols having the first symbol type, corresponds to the first threshold, determines a second threshold that corresponds to an average amplitude of the data signal samples when data symbols of a current UI have the first symbol type and data symbols of a first UI, at a first determined time distance from the current UI, have a second symbol type, and computes, as a first cursor value associated with the first UI, a first difference between the first threshold and the second threshold, multiplied by a first constant.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: January 28, 2020
    Assignee: CADENCE DESIGN SYSTEMS, INC.
    Inventor: Mathieu Gagnon
  • Patent number: 10536196
    Abstract: Systems, methods, and instrumentalities are disclosed for multiple resource unit (RU) allocation for OFDMA WLAN. A transmitter may parse an encoded bit stream into a plurality of spatial streams. The transmitter may determine an allocation of encoded bits of the plurality of spatial streams to a plurality of interleavers. The transmitter may allocate the encoded bits to the plurality of interleavers based on the determined allocation. The allocation of the encoded bits may be determined based on one or more of channel related feedback, an RU configuration associated with the transmission, a quality of service (QoS), and/or traffic priorities. The transmitter may interleave the encoded bits using the plurality of interleavers. The transmitter may combine the interleaved encoded bits from the plurality of interleavers into a sequenced bit stream.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: January 14, 2020
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Chunhua Geng, Fengjun Xi, Alphan Sahin, Rui Yang, Oghenekome Oteri, Nirav B. Shah, Robert L. Olesen, Frank La Sita
  • Patent number: 10523480
    Abstract: A method for k-bit Enumerative Sphere Shaping (ESS) of multidimensional constellations includes converting a first set of a plurality of uniformly distributed data bits from a serial data bit stream to a first unsigned amplitude sequence comprising a plurality of amplitudes bounded by a spherical constellation of maximum energy levels of a plurality of energy levels, wherein the first unsigned amplitude sequence has a Gaussian distribution and each of the energy levels is determined by a respective one of the amplitudes in the amplitude sequence. The first unsigned amplitude sequence is converted to a first shaped data bit sequence. The first shaped data bit sequence is combined with a second set of a one or more uniformly distributed data bits from the serial data bit stream to form a combined data stream. The combined data stream is mapped to a combined amplitude stream.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: December 31, 2019
    Assignee: NXP B.V.
    Inventors: Yunus Can Gultekin, Frans M. J. Willems, Wim van Houtum, Semih Serbetli
  • Patent number: 10523342
    Abstract: A method of detecting electromagnetic signal sources of interest includes applying reinforcement learning to automatically and continuously update a receiver scan schedule wherein an agent is reinforced according to comparisons between expected and actual degrees of success after each schedule update, actual degrees of success being estimated by applying to signal data a plurality of value scales applicable to a plurality of reward classes. An exponential scale can be applied across the plurality of reward classes. A companion system can provide data analysis to the agent. The agent can include an actor module that determines schedule updates and a critic module that determines the degrees of scanning success and awards the reinforcements. Embodiments implement a plurality of agents according to asynchronous multiple-worker actor/critic reinforcement learning.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 31, 2019
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Scott A Kuzdeba, Jonathan M. Sussman-Fort
  • Patent number: 10516452
    Abstract: A system and method for increasing the capacity of a Multiple-Input Multiple-Output (MIMO) system at desired user's locations and reducing the capacity at locations, other than that of the desired user, while also providing secrecy. Knowing the channel coefficient between each transmitter and receiver antenna pair at the transmitter, the method of the present invention calculates the artificial signal that minimizes the Euclidean distance between the desired and received data symbols if the precoding/combining matrix pair from the set that has the minimum Euclidean distance to the singular value decomposition (SVD) of the channel matrix is used for transmission and reception. The artificial signal may be fed to the precoder, instead of the actual desired data symbols, or may be transmitted directly to reduce computational complexity, power consumption and processing delay if the hardware configuration allows.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: December 24, 2019
    Assignee: University of South Florida
    Inventors: Berker Pekoz, Mohammed Hafez, Selcuk Kose, Huseyin Arslan
  • Patent number: 10511465
    Abstract: The present technology relates to a transmitter, a transmission method, a receiver, and a reception method that can keep upsizing and cost increase to a minimum. The transmitter and the receiver have a detection mode and a communication mode as operation modes. The detection mode detects contact between a first waveguide on the side of the transmitter and a second waveguide on the side of the receiver. The communication mode sends or receives a modulated signal, acquired through frequency conversion of a baseband signal, via the first and second waveguides. The transmitter sends a given signal to the first waveguide in the detection mode. The transmitter and the receiver go from the detection mode to the communication mode in response to a given signal received by the receiver via the second waveguide and send and receive the modulated signal via the first and second waveguides in the communication mode.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: December 17, 2019
    Assignee: SONY CORPORATION
    Inventors: Kenichi Kawasaki, Hiroyuki Yamagishi, Takahiro Takeda
  • Patent number: 10505569
    Abstract: An IF filter band-limits an intermediate frequency signal outputted from a mixer. An AFC unit controls the oscillation frequency of a PLL so that the frequency of the intermediate frequency signal is a predetermined frequency. When the AFC unit controls the oscillation frequency of the PLL, a band control unit controls the passing characteristic of the IF filter to the passing characteristic of a wide band, and after the completion of the control, controls the passing characteristic of the IF filter to the passing characteristic of a narrow band. A frequency correction unit refers to a filter information storage unit, and corrects the oscillation frequency controlled by the AFC unit according to the difference between the center frequency of the passband of the passing characteristic of the wide band and the center frequency of the passband of the passing characteristic of the narrow band.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: December 10, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Wataru Naito, Noriyoshi Izumi, Kazuhiro Kijima
  • Patent number: 10505593
    Abstract: A wireless communication system includes: a plurality of first wireless stations; a plurality of second wireless stations; and a management apparatus configured to manage the plurality of first wireless stations and the plurality of second wireless stations. The management apparatus includes a selection unit that selects a plurality of antennas to be used to transmit reference signals from a plurality of antennas included in the plurality of first wireless stations or a plurality of antennas included in the plurality of second wireless stations, and an instruction unit that instructs the plurality of first wireless stations or the plurality of second wireless stations to transmit reference signals using the plurality of antennas used to transmit the reference signals and selected by the selection unit.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: December 10, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Tatsuki Okuyama, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura
  • Patent number: 10498372
    Abstract: Various examples are directed to systems and methods for digital predistortion (DPD). A linear digital predistortion (DPD) circuit may be programmed to generate a pre-distorted signal linear component based at least in part on a complex baseband signal. A nonlinear DPD circuit may be programmed to generate a pre-distorted signal nonlinear component based at least in part on the complex baseband signal. A mixer circuit programmed to generate a pre-distorted signal based at least in part on the pre-distorted signal linear component and the pre-distorted signal nonlinear component.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: December 3, 2019
    Assignee: Analog Devices Global
    Inventor: Patrick Pratt
  • Patent number: 10498413
    Abstract: A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: December 3, 2019
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10498420
    Abstract: An example method includes generating, by a transmit end of a transceiver, NT beam training sequences, where each beam training sequence includes a cyclic prefix and a Golay sequence with a length of 2×N×L, and where the NT Golay sequences are orthogonal to each other. The transmit end can then send the NT beam training sequences to a receive end by using the NT transmit antennas at the transmit end, where each transmit antenna sends one corresponding beam training sequence.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 3, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Di Yuan, Qingchun Chen, Min Yan
  • Patent number: 10491288
    Abstract: A wireless communication method and a wireless communication device. The wireless communication device includes: one or more processors, configured to generate multiple data flows, the multiple data flows being transmitted to one or more receivers through the first quantity of radio frequency links; and to configure an antenna control parameter, the antenna control parameter being used for dynamically allocating the second quantity of antennas to the first quantity of radio frequency links. The one or more processors configure the antenna control parameter for transmission to be performed, and any one of the second quantity of antennas can be allocated to any one of the first quantity of radio frequency links in a configurable manner.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: November 26, 2019
    Assignee: SONY CORPORATION
    Inventors: Xudong Zhu, Zhaocheng Wang, Jinhui Chen
  • Patent number: 10476713
    Abstract: Provided is a transmission method that contributes to an increase in data reception quality when iterative detection is performed at a receive apparatus side. A transmit apparatus alternates between two types of modulation scheme that each shift amplitude and phase, performs mapping to constellation points according to a selected modulation scheme, and transmits a modulated signal obtained by mapping.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 12, 2019
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10476715
    Abstract: In some examples, a binary bit stream of input bits is encoded into a three-amplitude bipolar symbol stream of symbols, the encoding using a coding rule that specifies setting a value of a respective symbol of the symbol stream based on a respective input bit of the binary bit stream and a prior input bit of the binary bit stream that is prior to the respective input bit, the coding rule further specifying that adjacent non-zero pulses keep the same polarity. A radio frequency (RF) carrier signal is modulated using the symbol stream to produce a modulated RF signal.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: November 12, 2019
    Assignee: BlackBerry Limited
    Inventor: Shouxing Qu
  • Patent number: 10469109
    Abstract: In certain aspects of the present disclosure, a method for wireless communication comprises predistorting a first signal based on a set of coefficients to generate a first predistorted signal, outputting the first predistorted signal for a first transmission to a receiving device, and receiving a first feedback signal from the receiving device, wherein the first feedback signal provides feedback of a first receive signal at the receiving device corresponding to the first transmission. The method also comprises determining whether to store the set of coefficients in a memory based on the received first feedback signal, and storing the set of coefficients in the memory based on the determination.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 5, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Igor Gutman, Ariel Yaakov Sagi, Alecsander Petru Eitan
  • Patent number: 10461809
    Abstract: A circuit, system and method for controlling electrical power to a load, the circuit has a controller with power supply input nodes and a controller data input node. Two power supply input terminals supply electrical power to the circuit. A digital control signal pre-processing unit couples one of the power supply input terminals to the controller data input node. The digital control signal pre-processing unit has a capacitor arranged to block voltage biasing resulting from power supplied across electrical power supply input terminals from being supplied to the controller data input node. The digital control signal pre-processing unit is arranged to generate positive and negative voltage impulses in response to corresponding rising and falling edges of a digital control signal provided at the power supply input terminals. The digital control signal pre-processing unit is further arranged to generate a revised version of the digital control signal without the voltage biasing.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: October 29, 2019
    Assignee: LIGHTING AND ILLUMINATION TECHNOLOGY EXPERIENCE LIMITED
    Inventors: Michael John Merrick, Rod Holt
  • Patent number: 10461971
    Abstract: According to one embodiment, according to one embodiment, an IC card executing a command from a processing apparatus includes a communication unit and a processing unit. The communication unit transmits/receives data to/from the processing apparatus. Upon receiving, through the communication unit, a first command requesting transmission of data in a first frame not including a start code or an end code, the processing unit transmits data in the first frame through the communication unit.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: October 29, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventor: Keisuke Uchida