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: 9698758Abstract: 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: GrantFiled: January 14, 2015Date of Patent: July 4, 2017Assignee: BlackBerry LimitedInventors: John Hanford Spears, Wayne Eric Smith, Chenggang Sui, Yongfei Zhu
-
Publication number: 20150123870Abstract: 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: ApplicationFiled: January 14, 2015Publication date: May 7, 2015Inventors: John H. Spears, Wayne Eric Smith, Chenggang Sui, Yongfei Zhu
-
Patent number: 8957742Abstract: 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: GrantFiled: February 8, 2013Date of Patent: February 17, 2015Assignee: BlackBerry LimitedInventors: John Hanford Spears, Wayne Eric Smith, Chenggang Sui, Yongfei Zhu
-
Patent number: 8674783Abstract: 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: GrantFiled: March 12, 2013Date of Patent: March 18, 2014Assignee: BlackBerry LimitedInventors: John Hanford Spears, Wayne Eric Smith, Yongfei Zhu, Chenggang Sui
-
Patent number: 8421548Abstract: 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: GrantFiled: November 16, 2011Date of Patent: April 16, 2013Assignee: Research In Motion RF, Inc.Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
-
Patent number: 8395459Abstract: 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: GrantFiled: February 29, 2012Date of Patent: March 12, 2013Assignee: Research In Motion RF, Inc.Inventors: John H. Spears, Wayne Smith, Chenggang Sui, Yongfei Zhu
-
Publication number: 20120154069Abstract: 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: ApplicationFiled: February 29, 2012Publication date: June 21, 2012Applicant: PARATEK MICROWAVE, INC.Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
-
Publication number: 20120056689Abstract: 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: ApplicationFiled: November 16, 2011Publication date: March 8, 2012Applicant: PARATEK MICROWAVE, INC.Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
-
Patent number: 8072285Abstract: 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: GrantFiled: September 24, 2008Date of Patent: December 6, 2011Assignee: Paratek Microwave, Inc.Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
-
Publication number: 20100073103Abstract: 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: ApplicationFiled: September 24, 2008Publication date: March 25, 2010Inventors: John H. Spears, Wayne E. Smith, Chenggang Sui, Yongfei Zhu
-
Publication number: 20030176179Abstract: 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: ApplicationFiled: March 14, 2003Publication date: September 18, 2003Inventors: Ken Hersey, Shuguang Chen, Cornelis Du Toit, John Kvarnstrand, Jay Patel, Donya He, Peter Acsadi, Chenggang Sui