Patents by Inventor Chenggang Sui

Chenggang Sui 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).

  • Patent number: 9698758
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: July 4, 2017
    Assignee: BlackBerry Limited
    Inventors: John Hanford Spears, Wayne Eric Smith, Chenggang Sui, Yongfei Zhu
  • Publication number: 20150123870
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: John H. Spears, Wayne Eric Smith, Chenggang Sui, Yongfei Zhu
  • Patent number: 8957742
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: February 17, 2015
    Assignee: BlackBerry Limited
    Inventors: John Hanford Spears, Wayne Eric Smith, Chenggang Sui, Yongfei Zhu
  • Patent number: 8674783
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 18, 2014
    Assignee: BlackBerry Limited
    Inventors: John Hanford Spears, Wayne Eric Smith, Yongfei Zhu, Chenggang Sui
  • Patent number: 8421548
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: April 16, 2013
    Assignee: Research In Motion RF, Inc.
    Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
  • Patent number: 8395459
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: March 12, 2013
    Assignee: Research In Motion RF, Inc.
    Inventors: John H. Spears, Wayne Smith, Chenggang Sui, Yongfei Zhu
  • Publication number: 20120154069
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Application
    Filed: February 29, 2012
    Publication date: June 21, 2012
    Applicant: PARATEK MICROWAVE, INC.
    Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
  • Publication number: 20120056689
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Application
    Filed: November 16, 2011
    Publication date: March 8, 2012
    Applicant: PARATEK MICROWAVE, INC.
    Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
  • Patent number: 8072285
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: December 6, 2011
    Assignee: Paratek Microwave, Inc.
    Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
  • Publication number: 20100073103
    Abstract: Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 25, 2010
    Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
  • Publication number: 20030176179
    Abstract: A wireless local area network that utilizes a dynamically reconfigurable wireless network antenna that comprises at least one multi-layered RF module, said at least one RF module further comprising at least one RF connector for receipt of at least one RF signal and at least one layer of tunable dielectric material and one layer of metal fabricated into said RF module; an RF motherboard for acceptance of RF signals and distribution of the transmit energy to said RF module at the appropriate phases to generate a beam in the commanded direction and width; and a controller for determining the correct voltage signal to send to said at least one multi-layered RF module.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 18, 2003
    Inventors: Ken Hersey, Shuguang Chen, Cornelis Du Toit, John Kvarnstrand, Jay Patel, Donya He, Peter Acsadi, Chenggang Sui