Patents Examined by Young T. Tse
  • Patent number: 11070345
    Abstract: A method performed by a base station for measuring a channel state information reference signal (CSI-RS) for non-codebook based uplink (UL) transmission. The method includes transmitting information relating to a sounding reference signal (SRS) resource set for the non-codebook based UL transmission, information relating to a CSI-RS resource, a CSI-RS over the CSI-RS resource, and information relating to CSI-RS measurement restriction for measurement of the CSI-RS according to the CSI-RS measurement restriction. The measurement is for determining precoding information for the SRS resource set. The method includes receiving the SRS resource set, measuring the SRS resource set, and determining one or more SRS resources within the SRS resource set to be used for precoding the UL transmission. The method further includes transmitting a downlink control information (DCI) that indicates the SRS resources within the SRS resource set to be used for precoding the UL transmission, and receiving the UL transmission.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: July 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Young Hoon Kwon, Pengfei Xia
  • Patent number: 11070297
    Abstract: System and method of adapting thresholds for constellation selection based on statistic distributions of received data symbols. To determine an adapted threshold, an expected ratio of received symbols with values in a certain range is preset based on an expected statistic distribution of data symbols across the multiple constellations. A first and a second ratios are defined based on the expected ratio, the first ratio being the expected ratio minus an error ratio and the second ratio being the expected ratio plus the error ratio. A first value is determined which makes the received symbols in a firs range to constitute the first ratio of a set of slicer inputs. A second value is determined which makes the received symbols in the second range to constitute the second ratio of a set of slicer outputs. The adapted threshold is then obtained based on the first and the second value.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: July 20, 2021
    Assignee: MACOM Technology Solutions Holdings, Inc.
    Inventor: Yehuda Azenkot
  • Patent number: 11063805
    Abstract: A signal generation method includes phase-changing baseband signals with respective phase changing patterns to generate respective phase-changed signals, each of the phase changing patterns being different from each other, and inverse-fast-Fourier-transforming the phase-changed signals to respective orthogonal frequency division multiplexing (OFDM) transmission signals. Each phase changing pattern has N candidates for an amount of change in a phase, N being an integer greater than two, and each candidate is periodically selected from the N candidates based on subcarriers of the respective OFDM transmission signals, a phase of the respective baseband signals being changed by the each candidate.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: July 13, 2021
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 11056070
    Abstract: This application relates to an encoding method and device, a decoding method and device, and a signal transmission system.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 6, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hao Zhu, Xin Wang, Xibin Shao, Ming Chen, Jieqiong Wang, Shou Li, Yifang Chu
  • Patent number: 11057261
    Abstract: A method for transmitting data via a coaxial electrical cable includes (a) converting symbols of each input data stream of a plurality of parallel input data streams from digital form to analog form, (b) individually filtering symbols of each input data stream, (c) transforming symbols of each input data stream from a first frequency-domain to a first time-domain, to generate parallel first time-domain samples, (d) converting the first time-domain samples to a serial multi-carrier signal, and (e) injecting the multi-carrier signal onto the coaxial electrical cable.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: July 6, 2021
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Ruoyu Sun, Jingjie Zhu, Mark J. Poletti
  • Patent number: 11057073
    Abstract: An integrated circuit for use in a differential network bus node comprising: a transceiver having a first transceiver input-output terminal and a second transceiver input-output terminal; a physical layer high terminal connected to the first transceiver input-output-terminal; a physical layer low terminal connected to the second transceiver input-output terminal; and a physical layer interface circuit comprising: a first low frequency RC matching circuit and a first high frequency RC matching circuit each connected between the first transceiver input-output-terminal and a first reference terminal; and a second low frequency RC matching circuit and a second high frequency RC matching circuit each connected between the second transceiver input-output terminal and a second reference terminal.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: July 6, 2021
    Assignee: NXP USA, INC.
    Inventors: Pascal Kamel Abouda, Alexis Nathanael Huot-Marchand, Matthieu Aribaud
  • Patent number: 11050460
    Abstract: Systems and methods are disclosed for an integrated circuit (IC) comprising an oscillator, an on-off-keying modulator configured to modulate input data coupled to the oscillator, a serial communications transmitter coupled to the on-off-keying modulator, a serial communications receiver coupled to the serial communications transmitter by a set of cables, and an envelope detector coupled to the serial communications receiver. In the IC, power and data are simultaneously delivered across the same set of cables from the serial communications transmitter to the serial communications receiver.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: June 29, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Dushmantha Bandara Rajapaksha, Wesley Ray, Hao Liu, Maxwell Robertson
  • Patent number: 11044124
    Abstract: A dynamic module and a decision feedback equalizer are provided. The decision feedback equalizer includes two dynamic modules, which have symmetric circuits and connections. The dynamic module includes a first domino circuit, a second domino circuit, and a storage circuit. In response to a first previous decision bit and a second previous decision bit, a first multiplexer output and a second multiplexer output are generated. The dynamic module alternatively operates in an evaluation period and a precharge period, depending on a clock signal. In the evaluation period, the first and the second multiplexer outputs are updated by the first domino circuit and the second domino circuit. In the precharge period, the first and the second multiplexer outputs are held by the storage circuit.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: June 22, 2021
    Assignee: FARADAY TECHNOLOGY CORPORATION
    Inventor: Prateek Kumar Goyal
  • Patent number: 11038738
    Abstract: The present disclosure provides an encoding method and an encoder for a (n, n(n?1), n?1) permutation group code in a communication modulation system, in which 2k k-length binary information sequences are mapped to 2k n-length permutation codeword signal points in a n-dimensional modulation constellation ?n. The constellation ?n with the coset characteristics is formed by selecting 2k n-length permutation codewords from n(n?1) permutation codewords of a code set Pn,xi of the (n, n(n?1), n?1) permutation group code based on coset partition. The constellation ?n is a coset code in which 2k1 cosets are included and each coset includes 2k2 permutation codewords, where k=k1+k2, and 2k?n(n?1). The present disclosure utilizes the coset characteristics to realize one-to-one correspondence mapping of the binary information sequence set to the permutation code constellation, so that the time complexity of executing the encoder is at most the linear complexity of the code length n.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: June 15, 2021
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Li Peng, Si Jia Chen, Ying Long Shi, Ya Yu Gao, Bin Dai, Lin Zhang, Kun Liang, Bo Zhou, Zhen Qin
  • Patent number: 11032113
    Abstract: Examples herein disclose apparatus and systems for hybrid vector based polar modulator schemes that may use a series of polar modulators to create a system of vector modulators. The resulting polar response may be de-composed into the sum of the polar modulators. This approach allows accurate phase modulation in two such links without the need for high resolution AM part to cover the IQ plane of a QAM modulator.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 8, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Magnus Olov Wiklund, Emanuele Lopelli
  • Patent number: 11018842
    Abstract: An apparatus may include a sampling circuit configured to produce a sequence of input samples based on a continuous time input signal and a sample clock signal, the sampling phase of the sequence of input samples based on a phase control value output by a timing recovery circuit. In addition, the apparatus may include the timing recovery circuit configured to receive the sequence of input samples, detect, for a current sample of the sequence of input samples, a phase offset in the sampling phase of the sequence of input samples, the phase offset being a deviation of the sampling phase from an expected phase, and in response to detecting the phase offset, select a bandwidth for timing recovery. Further, the timing recovery circuit may generate an updated phase control value based on the selected bandwidth for timing recovery.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: May 25, 2021
    Assignee: Seagate Technology LLC
    Inventors: Jason Bellorado, Marcus Marrow, Zheng Wu
  • Patent number: 11016144
    Abstract: Approaches for testing phase rotators are provided. A circuit for testing phase rotators includes a compare element including a first input and a second input, wherein the compare element is configured to compare a first phase of a first signal provided at the first input to a second phase of a second signal provided at the second input. The circuit also includes a first test bus connected to the first input and a second test bus connected to the second input.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: May 25, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert G. Gerowitz, Sarah B. Higgins, Joseph A. Iadanza
  • Patent number: 11016734
    Abstract: A communications system that pseudo-randomly dithers the widths of chips that are multiplied by bit symbols for spread spectrum purposes. The system includes a first random sequence generator that generates a first sequence of random numbers at a sample rate and a decision processor responsive to the first sequence of random numbers that generates a separate command at the sample rate each time one of the random numbers exceeds a predetermined threshold. The system further includes a second random sequence generator that generates select random numbers, where the second random number generator changes the select random number each time it receives one of the commands. The system also includes a chip width processor responsive to the random numbers from the second random sequence generator, where the chip width processor selects a new set of chips each having a certain width in response to receiving each random number.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: May 25, 2021
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Christopher W. Walker, Ameesh N. Pandya, Yen M. Hoang, Ryan K. Cole
  • Patent number: 11018736
    Abstract: A transmission apparatus that (i) generates a Quadrature Phase Shift Keying (QPSK) modulation signal s1(t) by applying a QPSK modulation scheme to a first data sequence, (ii) generates a 16-Quadrature Amplitude Modulation (QAM) modulation signal s2(t) by applying a 16-QAM modulation scheme to a second data sequence, (iii) generates a transmission signal z1(t) and a second transmission signal z2(t) by applying a phase hopping process, a precoding process, and a power adjust process to the QPSK modulation signal s1(t) and the 16-QAM modulation signal s2(t), wherein an average transmission power of the 16-QAM modulation signal s2(t) being the same as an average transmission power of the QPSK modulation signal s1(t), and (iv) transmits the transmission signal z1(t) from a first antenna at a first time and a first frequency and the second transmission signal z2(t) from a second antenna at the first time and the first frequency.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: May 25, 2021
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 11018750
    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to cell recovery techniques. One example method generally includes receiving, at a user-equipment (UE), at least one pilot signal via a secondary cell, receive, via a primary cell, a first message triggering reporting of at least one preferred beam for communication via the secondary cell, determining the preferred beam based on the at least one pilot signal, transmitting, via the primary cell, a report indicating the at least one preferred beam, and communicating data via the secondary cell and via the preferred beam.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: May 25, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Kiran Venugopal, Jung Ho Ryu, Makesh Pravin John Wilson, Tao Luo
  • Patent number: 11018675
    Abstract: Generating a composite interpolated phase-error signal for clock phase adjustment of a local oscillator by forming a summation of weighted phase-error signals generated using a matrix of partial phase comparators, each of which compare a phase of the local oscillator with a corresponding phase of a reference clock.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: May 25, 2021
    Assignee: KANDOU LABS, S.A.
    Inventor: Armin Tajalli
  • Patent number: 11019474
    Abstract: A Bluetooth receiving method, a Bluetooth receiver, and a Bluetooth audio device are disclosed in the present invention. The Bluetooth receiving method includes: obtaining load data and a CRC result of the load data, and processing the load data based on signal quality of each of a plurality of data segments in one or more pre-stored load data having failed CRC results when the CRC result of the load data fails and a remaining retransmission time for the load data is no longer available. The signal quality is determined based on a signal angle difference before and after judgment for each of the plurality of data segments in each load data during demodulation. By using solutions provided in the present invention, damage caused by a data loss to a voice or audio can be concealed, and data reliability of limited retransmission of Bluetooth can be effectively improved, thereby improving Bluetooth communication performance.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: May 25, 2021
    Assignee: Zgmicro Nanjing Ltd.
    Inventor: Bin Xu
  • Patent number: 11005485
    Abstract: A frequency multiplier comprises a phase generator configured to receive an oscillation signal and to provide at phase generator outputs versions of the oscillation signal, which are phase-shifted with respect to each other. An injection-locked ring oscillator comprises a plurality of stages, wherein each of the phase generator outputs is coupled to a different stage of the plurality of stages for multi-point injection. A combiner combines output signals of the plurality of stages of the injection-locked ring oscillator into a signal having a frequency which is a multiple of a frequency of the oscillation signal.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: May 11, 2021
    Assignee: Infineon Technologies AG
    Inventors: Mateo Bassi, Fabio Padovan
  • Patent number: 11005644
    Abstract: Embodiments of the present disclosure include techniques for generating accurate time stamps. In one embodiment, a first timing reference signal corresponding to a first clock domain is combined with a first clock signal corresponding to a second clock domain to produce a second timing reference signal that includes quantization noise. The second timing reference signal is filtered to remove the quantization noise and generate a filtered timing reference signal. The filtered timing reference signal may be sampled in the second clock domain to obtain a time stamp. In one embodiment, a phase locked loop (PLL) is used as the filter. The PLL may generate first and second ramps that correspond to time. One of the ramps may be sampled to obtain a time stamp, for example.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: May 11, 2021
    Assignee: ARISTA NETWORKS, INC.
    Inventors: Russell Andrew Lowes, Andrew Bridger, Thomas Dejanovic, David Charles Ambler Snowdon
  • Patent number: 11005519
    Abstract: Disclosed embodiments relate to isolation methods for full-duplex communication. In one example, a full-duplex antenna system includes a Tx (transmit) signal path including one or more elements each, means a power amplifier, one or more filters, and a Tx port of a Tx patch antenna operating at a Tx frequency band to transmit an outgoing signal to a satellite, the one or more elements each further including an Rx (receive) signal path including a low noise amplifier driven by an Rx port of an Rx patch antenna operating at an Rx frequency band to receive an incoming signal from the satellite, the Rx frequency band being separated by a guard band from the Tx frequency band, wherein the filters together with a physical separation between the Tx and Rx signal paths provide sufficient isolation to reduce coupling between the Tx signal path and the Rx signal path, allowing the full-duplex antenna system to operate in full-duplex.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: May 11, 2021
    Assignee: UTVATE Corporation
    Inventors: Stefan William Turkowski, Amin Reda, Siamak Ebadi, Andres Felipe Osorio