Patents by Inventor Xiangchun Wu

Xiangchun Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Time-frequency deviation compensation method, and user terminal
    Patent number: 10211838
    Abstract: Embodiments of the present invention disclose a time-frequency deviation compensation method, and a user terminal. A temperature compensation exception can be identified and a time-frequency deviation caused by the temperature compensation exception can be compensated by implementing the embodiments of the present invention.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: February 19, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiadi Liu, Xiangchun Wu
  • TIME-FREQUENCY DEVIATION COMPENSATION METHOD, AND USER TERMINAL
    Publication number: 20170317681
    Abstract: Embodiments of the present invention disclose a time-frequency deviation compensation method, and a user terminal. A temperature compensation exception can be identified and a time-frequency deviation caused by the temperature compensation exception can be compensated by implementing the embodiments of the present invention.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 2, 2017
    Inventors: Jiadi Liu, Xiangchun Wu
  • Method for controlling a converter having variable frequency control and system for powering a vehicle load using same
    Patent number: 9306465
    Abstract: A converter operable for powering one or more loads having a variable switching frequency. The switching frequency of the converter being selectable based on a desired output power level and/or whether switching of a plurality of switches of the converter is characterized as zero voltage switching (ZVS) or non-zero voltage switching (NZVS).
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: April 5, 2016
    Assignee: Lear Corporation
    Inventors: Xiangchun Wu, Richard J. Hampo
  • Efficiency optimized power converter with dual voltage power factor correction
    Patent number: 9065327
    Abstract: A dual voltage power conversion system with power factor correction (PFC) having a capabilities to adjust a PFC setpoint according to operating conditions. The input signaling levels, for example, may be monitored and used to control adjustments to the PFC setpoint in order to allow the PFC setpoint to dynamically change with any input variation. The PFC setpoint may be adjusted to a PFC setpoint resulting in maximum efficiency.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: June 23, 2015
    Assignee: Lear Corporation
    Inventors: Richard J. Hampo, Xiangchun Wu
  • CONVERTER HAVING VARIABLE FREQUENCY CONTROL
    Publication number: 20120313430
    Abstract: A converter operable for powering one or more loads having a variable switching frequency. The switching frequency of the converter being selectable based on a desired output power level and/or whether switching of a plurality of switches of the converter is characterized as zero voltage switching (ZVS) or non-zero voltage switching (NZVS).
    Type: Application
    Filed: June 10, 2011
    Publication date: December 13, 2012
    Applicant: LEAR CORPORATION
    Inventors: Xiangchun Wu, Richard J. Hampo
  • EFFICIENCY OPTIMIZED POWER CONVERTER WITH DUAL VOLTAGE POWER FACTOR CORRECTION
    Publication number: 20120201061
    Abstract: A dual voltage power conversion system with power factor correction (PFC) having a capabilities to adjust a PFC setpoint according to operating conditions. The input signaling levels, for example, may be monitored and used to control adjustments to the PFC setpoint in order to allow the PFC setpoint to dynamically change with any input variation. The PFC setpoint may be adjusted to a PFC setpoint resulting in maximum efficiency.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 9, 2012
    Applicant: LEAR CORPORATION
    Inventors: Richard J. Hampo, Xiangchun Wu