Patents Examined by Freshteh N. Aghdam
  • Patent number: 10326584
    Abstract: A device, a circuit and a method are disclosed herein. The device includes a data receiving circuit and an oscillating signal generator. The data receiving circuit is configured to output a first output signal, a second output signal, and a phase error signal according to an oscillating signal and a modulated signal, in which the phase error signal indicates a phase difference between the oscillating signal and the modulated signal. The oscillating signal generator is configured to delay a phase of a first reference signal according to the phase error signal, to generate the oscillating signal.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: June 18, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Huan-Neng Chen, William Wu Shen, Lan-Chou Cho, Feng-Wei Kuo, Chewn-Pu Jou
  • Patent number: 10326492
    Abstract: A communication method between short range radio communication devices includes sharing multiple pieces of link information of multiple devices by the multiple devices making communication with each other through a frequency hopping scheme under a short range radio communication environment, such that the multiple devices communicate with each other without interference with each other even if mutually independently making communication, creating, by the multiple devices, multiple pieces of frequency slot allocation information based on the multiple pieces of link information and broadcasting the multiple pieces of created frequency slot allocation information, and making, by the multiple devices, first communication based on specific frequency slot allocation information among multiple pieces of received frequency slot allocation information.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: June 18, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Joon Young Kim, Ju Won Kim
  • Patent number: 10326635
    Abstract: A coding and modulation apparatus and method are presented. The apparatus comprises an encoder that encodes input data into cell words, and a modulator that modulates said cell words into constellation values of a non-uniform constellation. The modulator is configured to use, based on the total number M of constellation points of the constellation and the code rate, a non-uniform constellation from one or several groups of constellations each comprising one or more constellations.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 18, 2019
    Assignee: Sony Corporation
    Inventors: Nabil Loghin, Lothar Stadelmeier, Jan Zoellner, Yuji Shinohara
  • Patent number: 10291270
    Abstract: A circuit and apparatus for filtering harmful harmonics is disclosed. The circuit and apparatus include a power amplifier core that uses equally sized inverter based amplifiers. The amplifier core cells provide uniform load to all phases of a fundamental frequency to cancel all harmonics at an output. The power amplifier stages are driven into nonlinearity, and the combination of harmonics is performed at the output by varying series connected capacitors. The harmonic combination is performed at the output, leaving no further scope of nonlinearity in the signal chain.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: May 14, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Sudipto Chakraborty
  • Patent number: 10291281
    Abstract: Disclosed is an electronic transmitter-receiver device for integrating into an electronic module connected to a communication network by a bus, the bus being of the CAN or FlexRay type, the electronic transmitter-receiver device including a receiving assembly (R) and a control part (D) which are configured so as to allow switching from a CAN operating mode to a FlexRay operating mode of the device, and vice versa, without needing to change the electronic component.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: May 14, 2019
    Assignees: CONTINENTAL AUTOMOTIVE FRANCE, CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Thierry Bavois
  • Patent number: 10291335
    Abstract: The beamforming calibration system includes a transmitter, a receiver, and a computing device. The transmitter includes multiple transmitting antennas. The computing device provides multiple phase sets to the transmitter. When the computing device provides a first phase set among the phase sets to the transmitter: the transmitter uses the first phase set to set phases of the transmitting antennas, the receiver receives wireless transmission signal from the transmitting antennas to obtain a first radiation pattern corresponding to the first phase set, and the computing device is configured to compare the first radiation pattern with a predetermined pattern to calculate a pattern similarity score corresponding to the first phase set. The computing device selects a calibration phase set among the phase sets according to the pattern similarity score of each phase set, and provides the calibration phase set to the transmitter to calibrate beamforming.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: May 14, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chao-Kai Wen, Chang-Jen Wang, Jung-Chieh Chen
  • Patent number: 10291436
    Abstract: A processing module for a transmitter device configured to provide for generation of a signal comprising at least one frame for transmission by the transmitter device to a receiver device, the processing module configured to provide for processing of an input pulse stream comprising a stream of pulses representative of data, to provide an output pulse stream, each pulse of the pulse streams having one of two states defining the phase with which a carrier wave is modulated; the processing module configured to; divide the input pulse stream into consecutive groups of pulses; and for each group of pulses, based on determination that the first two or more consecutive pulses of the group have the same polarity, provide for addition of at least one dummy pulse to the group directly after the first two or more consecutive pulses, with an opposite polarity.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: May 14, 2019
    Assignee: NXP B.V.
    Inventors: Jan Dutz, Wolfgang K├╝chler, Frank Leong, Thomas Baier, Arie Geert Cornelis Koppelaar
  • Patent number: 10288726
    Abstract: A radar system including a narrowband radar receiver configured to receive pulsed radar return signals and a wideband receiver configured for receiving wideband signals. A noise data processor is configured to identify impulse noises by analyzing wideband signals received by the wideband receiver and a radar processor is configured to cancel the identified impulse noises from pulse signals received by the radar receiver. The wideband impulse noises utilized to cancel noise from the pulse signals corresponds to the same time period sweep of detection as that of the pulse signals.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: May 14, 2019
    Assignee: Raytheon Canada Limited
    Inventors: Richard McKerracher, Anthony M. Ponsford
  • Patent number: 10277426
    Abstract: Methods, systems, and devices for mitigating supply noise in single-ended current mode logic (CML) transmitters are described. A first current source may generate a first bias current for a first differential transistor pair included in a CML transmitter, and a second current source may generate a second bias current for a second differential transistor pair. The first differential transistor pair may route the first bias current through either leg of the first differential transistor pair based on a polarity of an input signal and the second differential transistor pair may route the second bias current through either leg of the second differential transistor pair based on the polarity of the input signal. Based on a first polarity, the second bias current may be routed to a ground reference, and based on a second polarity, the second bias current may be routed through the first differential transistor pair to modify a load current internal to the CML transmitter.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: April 30, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Jeremy Kuehlwein, Gregory A. King
  • Patent number: 10277254
    Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting, by an input formatting block, input streams into plural PLPs (Physical Layer Pipes); encoding, by an encoder, data in the plural PLPs; time interleaving, by a time interleaver, the encoded data in the plural PLPs, wherein the time interleaving includes: cell interleaving, by a cell interleaver, the encoded data by permuting cells in a FEC (Forward Error Correction) block in the plural PLPs; frame mapping, by a framer, the time interleaved data onto at least one signal frame; and waveform modulating, by a waveform block, the mapped data in the at least one signal frame and transmitting, by the waveform block, broadcast signals having the modulated data.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: April 30, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Woosuk Ko, Seoyoung Back, Sungryong Hong
  • Patent number: 10270487
    Abstract: A frequency generator is disclosed. The frequency generator is for generating an oscillator clock according to a reference clock, and the frequency generator is used in a frequency hopping system that switches a carrier frequency among a plurality of channels, and the carrier frequency further carries a modulation frequency for data transmission. The frequency generator includes: a frequency hopping and modulation control unit arranged for generating a current channel according to a channel hopping sequence and a frequency command word (FCW) based on the reference clock, wherein the modulation frequency is higher than a frequency of the reference clock; a reference phase generating unit arranged for generating a reference phase according to the reference clock, the modulation clock, the first FCW, the second FCW, and the third FCW; a digital-controlled oscillator (DCO) arranged for to generating the oscillator clock according to the reference phase. An associated method is also disclosed.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: April 23, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Chia-Chun Liao, Min-Shueh Yuan, Chao-Chieh Li, Robert Bogdan Staszewski
  • Patent number: 10263674
    Abstract: A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first reference signal set, where the precoding matrix is a function of the user equipment-specific matrix or matrix set; and sending a precoding matrix indicator to the base station, where the precoding matrix indicator corresponds to the selected precoding matrix. In the embodiments of the present invention, CSI feedback precision can be improved without excessively increasing feedback overhead, thereby improving system performance.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: April 16, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jianguo Wang, Yongxing Zhou, Yong Wu, Liang Xia
  • Patent number: 10263642
    Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting, by an input formatting block, input streams into plural PLPs (Physical Layer Pipes); encoding, by an encoder, data in the plural PLPs; time interleaving, by a time interleaver, the encoded data in the plural PLPs, wherein the time interleaving includes: cell interleaving, by a cell interleaver, the encoded data by permuting cells in a FEC (Forward Error Correction) block in the plural PLPs; frame mapping, by a framer, the time interleaved data onto at least one signal frame; and waveform modulating, by a waveform block, the mapped data in the at least one signal frame and transmitting, by the waveform block, broadcast signals having the modulated data.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: April 16, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Woosuk Ko, Seoyoung Back, Sungryong Hong
  • Patent number: 10257006
    Abstract: A communication device determines that an extension field should be included in physical layer (PHY) data unit to provide a receiver with more processing time to process data included in the PHY data unit, wherein the extension field is not required to be processed by the receiver. The communication device generates i) a PHY preamble of the PHY data unit, and ii) a PHY data portion of the PHY data unit, the PHY data unit conforming to a first communication protocol. Each orthogonal frequency division multiplexing (OFDM) symbol in the PHY data portion is generated with a first tone spacing, which is a fraction 1/N of a second tone spacing defined by a second communication protocol, wherein N is a positive integer greater than one. The communication device also generates the extension field of the PHY data unit, which is appended to an end of the PHY data portion.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: April 9, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Yakun Sun, Mingguang Xu, Rui Cao, Hui-Ling Lou
  • Patent number: 10256998
    Abstract: Methods, systems, and devices for mitigating supply noise in single-ended current mode logic (CML) transmitters are described. A first current source may generate a first bias current for a first differential transistor pair included in a CML transmitter, and a second current source may generate a second bias current for a second differential transistor pair. The first differential transistor pair may route the first bias current through either leg of the first differential transistor pair based on a polarity of an input signal and the second differential transistor pair may route the second bias current through either leg of the second differential transistor pair based on the polarity of the input signal. Based on a first polarity, the second bias current may be routed to a ground reference, and based on a second polarity, the second bias current may be routed through the first differential transistor pair to modify a load current internal to the CML transmitter.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: April 9, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Jeremy Kuehlwein, Gregory A. King
  • Patent number: 10236963
    Abstract: A method of operating a communication system is disclosed. The method includes transmitting a plurality of channel state information reference signal (CSI-RS) sub-resources and a plurality of mode configuration signals to a remote transceiver. The method further includes receiving channel state information (CSI) signals according to the mode configuration signals for the respective sub-resources.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: March 19, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Runhua Chen
  • Patent number: 10236962
    Abstract: A method includes: a transmit end transmits at least two mixed pilot signals to a receive end separately by using at least two physical antennas. The at least two mixed pilot signals are separately obtained after preset pilot signals corresponding to logical antennas in the at least two logical antennas are weighted by using a precoding weight matrix. The transmit sends a first codebook subset restriction instruction to the receive end. The first codebook subset restriction instruction carries a rank indication RANK and at least one precoding matrix index PMI. The transmit end receives a channel quality feedback message that is fed back by the receive end according to downlink channel quality of an equivalent channel of a specified antenna. Accordingly, a suitable serving antenna is selected for a receive end, thereby improving signal quality.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: March 19, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jing Yang, Hongrui Zhou, Ni Ma, Wei Gu
  • Patent number: 10230477
    Abstract: The continuous demand for capacity and the limited available spectrum in wireless and wired communication has led to reliance on advanced modulation techniques to dramatically increase the number of bits per hertz per second. This demand in capacity and using the higher order constellations shorten the link range, and as a result, system gain becomes an important characteristic. The modulation techniques described here improve the system gain by, e.g., as much as 2.5 dB in high order modulations such as 4096-QAM. The modulation techniques include reducing the peak to average ratio and adding shaping gain. These techniques dramatically improve the system capacity, system gain, power consumption and system cost.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: March 12, 2019
    Assignee: MAXLINEAR ASIA SINGAPORE PTE LTD
    Inventors: Nadav Fine, Ran Soffer
  • Patent number: 10218409
    Abstract: A communication device is provided for a communication network having a cable plant within an operational vicinity of a macro base station wirelessly transmitting an LTE signal. The communication device includes a processor configured to obtain at least one PNM metric for a cable signal communicated over the cable plant, detect a signature of the LTE signal based on the obtained PNM metric, estimate, based on the detected LTE signature, an existing LTE signal power at a point of leakage in the cable plant, determine a CNR of the cable plant at the point of leakage based on a power of the cable signal and the estimated LTE signal power, and calculate a minimum safe distance from the point of leakage in which a small cell base station may operate without the substantial interference from the LTE signal of the macro base station.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: February 26, 2019
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mark Poletti, Vaibhav Singh
  • Patent number: 10211903
    Abstract: An apparatus for transmitting simultaneous multiple beams to targets at near and far fields includes: a communication unit consisting of a plurality of unit cells, and configured to communicate a signal or power via antennas provided in each of the unit cells; and a control unit configured to calculate a phase of a voltage applied to the antennas so as to simultaneously transmit the power or signal to the targets at the near and far fields.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: February 19, 2019
    Assignee: Hongik University Industry-Academia Cooperation Foundation
    Inventors: Jeong-Hae Lee, Sun-Gyu Lee, Jae-Gon Lee, Chang-Hyun Lee, Sang Wook Chi