Patents Examined by Khanh C. Tran
  • Patent number: 10411939
    Abstract: Methods and apparatus for distributing content using a spectrum generation device. In one embodiment, digital content is received via a time-multiplexed network transport (such as Gigabit Ethernet), and converted to frequency channels suitable for transmission over a content distribution (e.g., Hybrid Fiber Coaxial (HFC)) network. In one variant, the conversion is performed using digital domain processing performed by a full spectrum generation device. Additionally, methods and apparatus for selectively adding, removing, and/or changing digital content from the full spectrum device are also disclosed. Various aspects of the present invention enable physical (infrastructure) consolidation, and software-implemented remote management of content distribution.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: September 10, 2019
    Assignee: Time Warner Cable Enterprises LLC
    Inventor: Glen Hardin
  • Patent number: 10411769
    Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: September 10, 2019
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10404339
    Abstract: The described technology is generally directed towards reducing the complexity for finding the precoding matrix index/rank information channel state information in New Radio wireless systems. Described is using the beam characteristics of X1 (wideband component index) and X2 (subband component index) such that a user equipment first determines a best chosen X2 for only one X1 index. Thereafter, the user equipment uses the chosen index of X2 for the other X1 indices, thereby reducing the complexity of the precoding matrix index/rank information search by reducing the search space in the codebook, which reduces the number of computations at the user equipment side without significantly impacting the performance.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: September 3, 2019
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Patent number: 10404498
    Abstract: The invention relates to precoding (or rather pre-equalization) for a faster-than-Nyquist OFDM or OFDM/OQAM type transmitter. Compression of faster-than-Nyquist OFDM pulses over time introduces an inter-symbol interference (ISI) and a sub-carrier interference (ICI). Assuming a Gaussian-type channel (AWGN), the ISI and ICI can be estimated at the transmitter and, in this way, some of the symbols (at most half) can be precoded (according to the value of the adjacent symbols), such as to cancel the ISI and ICI introduced during transmission and reception.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: September 3, 2019
    Assignee: ORANGE
    Inventors: Naila Lahbabi, Hao Lin, Pierre Siohan
  • Patent number: 10396937
    Abstract: An improved receiver design implements a method for modeling users in SIC turbo loop multiuser detection architectures that reduces the number of implementation cycles, and thereby reduces the computational overhead associated with computing the inverse of the received signal covariance matrix, by efficiently reusing components of a QR decomposition. By reusing some of the computational results from the previous turbo loop's equalizer calculation, the disclosed receiver significantly reduces the computational burden of updating the linear equalizer on each turbo loop. Depending on the embodiment, this reduction can be accomplished in at least two different ways, depending on the dimensionality and other aspects of the implementation.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: August 27, 2019
    Assignee: COLLISION COMMUNICATIONS, INC.
    Inventors: Brandon Hombs, Sayak Bose
  • Patent number: 10389559
    Abstract: Embodiments of the present invention provide a reference signal sending method, a reference signal receiving method, and an apparatus. A reference signal sending method includes: obtaining a reference signal sequence, where the reference signal sequence includes multiple bits and exclusive OR of every two bits separated by one bit in the multiple bits is 1; performing Gaussian Minimum Shift Keying GMSK modulation on the reference signal sequence; and sending a modulated reference signal sequence. In the embodiments of the present invention, a reference signal sequence is designed as a sequence in which exclusive OR of every two bits separated by one bit is 1, GMSK modulation is performed on the reference signal sequence, and the same reference signal sequence is used to perform channel estimation during GMSK demodulation. Compared with a case in which a pseudo random sequence is used as a pilot symbol, channel estimation accuracy is improved.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: August 20, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhe Jin, Zhe Chen, Weiliang Zhang
  • Patent number: 10374748
    Abstract: A wireless terminal (1) is configured, when a plurality of hybrid automatic repeat request (HARQ) ACK/NACK bits corresponding to a plurality of downlink component carriers (DL CCs) configured in the wireless terminal (1) are transmitted on a single physical uplink control channel (PUCCH) on a single uplink component carrier (UL CC), to change a spreading rate to be applied to time-domain spreading of a plurality of modulation symbols generated from the plurality of HARQ ACK/NACK bits, depending on the number of the plurality of DL CCs or the number of the plurality of HARQ ACK/NACK bits.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: August 6, 2019
    Assignee: NEC CORPORATION
    Inventor: Kengo Oketani
  • Patent number: 10374646
    Abstract: Methods and devices for detecting wireless signal absorption using power sensing circuitry. One method includes receiving, by a receiving device having power sensing circuitry, a plurality of wireless signals from a plurality of transmitting devices. The power sensing circuitry may include a local oscillator, a mixer, and a band-pass filter. The method may also include detecting, by the power sensing circuitry, a plurality of power levels for the plurality of wireless signals, where each power level of the plurality of power levels corresponds one of the plurality of wireless signals. The method may further include analyzing, by one or more processors, the plurality of power levels to determine three characteristic power levels of the plurality of power levels. The method may further include calculating, by the one or more processors, an absorption amount based on the three characteristic power levels.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: August 6, 2019
    Assignee: Cubic Corporation
    Inventor: Graham Fletcher
  • Patent number: 10374679
    Abstract: Methods, systems, and devices for wireless communication are described that support overriding a beam monitoring pattern for control channel transmissions based on channel conditions between a user equipment and a base station. A base station may select a beam monitoring pattern for transmitting control channel transmissions, which may include a pattern in which two or more beams are used for control channel transmissions. In the event that a first beam of the beams used in the beam monitoring pattern meets certain metrics, the use of one or more additional beams according to the beam monitoring pattern may be overridden and transmissions continued using the first beam. The metrics for continuing use of the first beam may include channel quality metrics, a number of consecutive successful transmissions using the first beam, one or more other metrics, or any combination thereof.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 6, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Makesh Pravin John Wilson, Tao Luo, Jing Sun, Andrei Dragos Radulescu, Aleksandar Damnjanovic, Arumugam Chendamarai Kannan
  • Patent number: 10374853
    Abstract: To reflect advantages of continuous phase modulation (CPM), the invention provides a low complexity transmitter and receiver to transmit and receive CPM signals and addresses a significant reduction in the CPM demodulator complexity, and is especially well-suited for large values of L, e.g., L?3. The invention utilizes a linear filter front end as an integral part of the CPM demodulation process to reduce the ISI inherent in CPM transmit signal, and minimizes the influence of L in the reception process. To that end, the invention renders the complexity of a CPM demodulator non-exponentially dependent on L, and L only has a weak impact on the number of coefficients of the linear front end filters. Moreover, the invention provides a simple way of forming CPM signals for a digital communication transmitter using parallel Time Invariant Phase Encoders, which simplifies the production of CPM waveforms on software or hardware.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: August 6, 2019
    Assignee: MARECOMMS INC.
    Inventor: Ulaş Güntürkün
  • Patent number: 10374788
    Abstract: Embodiments of the disclosure relate to a phase locked loop (PLL)-less millimeter wave (mmWave) power head. The mmWave power head receives a multiplexed signal including a pilot signal at a base frequency and a communication signal at the IF frequency. The mmWave power head separates the pilot signal from the communication signal and multiplies the pilot signal to generate a local oscillator (LO) clock signal(s) at a harmonic frequency(ies) relative to the base frequency of the pilot signal. A selected LO clock signal is provided to a mixer circuit(s) for up and down conversions between the IF frequency and the mmWave carrier frequency. By eliminating the PLL frequency synthesizer from the mmWave power head, it is possible to avoid spur and coupling issues associated with collocating the PLL frequency synthesizer with an antenna front end module (FEM), thus helping to improve reliability and performance of the mmWave power head.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: August 6, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Dirk Robert Walter Leipold, George Maxim, Baker Scott
  • Patent number: 10363861
    Abstract: One example includes a communication system. The system includes a data transmitter configured to generate a digital communication signal and a data receiver configured to receive the digital communication signal. The system also includes a pulse-width distortion (PWD) correction circuit arranged between the data transmitter and the data receiver and being configured to adjust at least one timing parameter associated with the communication signal.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: July 30, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Anant Shankar Kamath, Divyasree J.
  • Patent number: 10367552
    Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: July 30, 2019
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10367514
    Abstract: The present invention relates to passive phased injection locked circuit and ring-based voltage controlled oscillators. A passive phased injection locked circuit comprises first and second transmission lines, each has a plurality of discrete elements, that are operative to delay the phase of AC signal. Between the first and second transmission lines, a capacitor network is formed to advance the phases of the AC signal in concert along the transmission lines. For the ring-based voltage controlled oscillators, each of the first and second transmission lines has an odd number of discrete elements.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 30, 2019
    Assignee: Circuit Seed, LLC
    Inventors: Susan Marya Schober, Robert C. Schober, Herbert Shapiro
  • Patent number: 10348544
    Abstract: Provided is a power control method of a transmitter. The method may include: generating a first aggregated carrier signal by aggregating multiple carrier signals; determining whether at least one peak exceeding a preset threshold is detected among the peaks of the first aggregated carrier signal; generating, if at least one peak exceeding the preset threshold is detected, at least one cancellation signal based on the detected at least one peak; and mapping the at least one cancellation signal to reserved subcarriers. It is possible to reduce the PAPR at the side of an amplifier by applying a tone reservation technique to multicarrier signals.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: July 9, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hayoung Yang, Seijoon Shim, Jonghyeuk Lee
  • Patent number: 10341165
    Abstract: A controller area network (CAN) transmitter includes an output stage circuit, a replica circuit of the output stage circuit configured to produce a replica signal, and a control amplifier configured to control a CANL output signal of the CAN transmitter in order to maintain the replica signal at a desired level.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 2, 2019
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventor: Burkhard Gehring
  • Patent number: 10341147
    Abstract: A high performance equalization method is disclosed for achieving low deterministic jitter across Process, Voltage and Temperature (PVT) for various channel lengths and data rates. The method includes receiving input signal at front end of a receiver upon passing through a channel, generating with an eye-opening monitor circuit a control code based on channel conditions, and equalizing with a continuous-time linear equalization equalizer (CTLE) circuit the input signal based on the control code such that the eye-opening monitor circuit and the CTLE circuit are biased based on their corresponding replica circuits, and the control code is generated in a feedforward configuration.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 2, 2019
    Assignee: MegaChips Corporation
    Inventors: Abhishek Kumar Khare, Raghavendra R. G, Anil Chawda, Shubham Srivastava
  • Patent number: 10333567
    Abstract: Examples described herein include methods, devices, and systems which may compensate input data for non-linear power amplifier noise to generate compensated input data. In compensating the noise, during an uplink transmission time interval (TTI), a switch path is activated to provide amplified input data to a receiver stage including a coefficient calculator. The coefficient calculator may calculate an error representative of the noise based partly on the input signal to be transmitted and a feedback signal to generate coefficient data associated with the power amplifier noise. The feedback signal is provided, after processing through the receiver, to a coefficient calculator. During an uplink TTI, the amplified input data may also be transmitted as the RF wireless transmission via an RF antenna. During a downlink TTI, the switch path may be deactivated and the receiver stage may receive an additional RF wireless transmission to be processed in the receiver stage.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: June 25, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Fa-Long Luo, Jeremy Chritz, Jaime Cummins, Tamara Schmitz
  • Patent number: 10333562
    Abstract: A radio signal processing method and apparatus includes first receiving a receive command that is sent by a router and that carries a receive frequency and a sampling frequency; receiving a radio signal corresponding to the receive frequency according to the receive frequency; performing sampling processing on the radio signal according to the sampling frequency to obtain a digital signal, and sending the digital signal to the router.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: June 25, 2019
    Assignee: HUAWEI TECHNOLOGIES, CO., LTD.
    Inventor: Nian Li
  • Patent number: 10326501
    Abstract: As disclosed herein is a multiple-input multiple-output (MIMO) radio transceiver which may include a plurality of antennas operatively coupled to a first integrated circuit (IC). The first IC and the plurality of antennas may receive a first radio signal on a first radio frequency (RF) carrier and a second radio signal on a second RF carrier. The first RF carrier and the second RF carrier may be different carriers. The first radio signal and the second radio signal may have different bandwidths. The first IC may demodulate the first received radio signal to produce a first baseband signal and the second received radio signal to produce a second baseband signal. A second IC may be operatively coupled to the first IC and may recover data from at least the first baseband signal and the second baseband signal.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 18, 2019
    Assignee: IPR Licensing, Inc.
    Inventors: Gary L. Sugar, Robert M. Masucci, David G. Rahn