Qingwen Na Zhang

US Patent:

8013787, Sep 6, 2011

Filed:

Sep 2, 2004

Appl. No.:

10/570578

Inventors:

Mangesh Chansarkar - Irvine CA, US
Sundar Raman - Fremont CA, US
Charles P. Norman - Huntington Beach CA, US
Paul A. Underbrink - Lake Forest CA, US
Henry D. Falk - Long Beach CA, US
James Brown - Laguna Beach CA, US
Robert Harvey - San Francisco CA, US
Peter Michali - Irvine CA, US
Williams Higgins - Marlon IA, US
Gengsheng Zhang - Cupertino CA, US
Qingwen Zhang - Cupertino CA, US

Assignee:

SiRF Technology Inc. - San Jose CA

International Classification:

G01S 19/03
G01S 19/09
G01S 19/37

US Classification:

3423574, 34235746, 34235777

Abstract:

Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centering and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a subsystem for mode switching between a navigational signal; and power control module for a receiver.

US Patent:

8164517, Apr 24, 2012

Filed:

Oct 28, 2006

Appl. No.:

12/091798

Inventors:

Gengsheng Zhang - Cupertino CA, US
Qingwen Zhang - Irvine CA, US
Paul Underbrink - Irvine CA, US

Assignee:

CSR Technology Inc. - San Jose CA

International Classification:

G01S 19/09
G01S 19/03
G01S 19/37

US Classification:

34235746, 3423574, 34235777

Abstract:

Satellite positioning system (SATPS) receiver that has a plurality of modes and channels, where a timeline module configures the channels based on the mode of operation of the SATPS receiver and reconfigures the channels if the mode of operation of the SATPS changes.

US Patent:

20060152409, Jul 13, 2006

Filed:

Oct 1, 2003

Appl. No.:

10/530069

Inventors:

Sundar Raman - Fremont CA, US
Reza Abtahi - Santa Clara CA, US
Qingwen Zhang - Torrance CA, US
Gengsheng Zhang - Cupertino CA, US
Lionel Garin - Palo Alto CA, US

International Classification:

G01S 5/14

US Classification:

342357150, 342357120

Abstract:

A system within a multi-channel GPS receiver that searches for Global Positioning System (GPS) satellites by receipt of a plurality of GPS signals where each GPS signal corresponds to a GPS satellite having a GPS satellite identification number (ID) is shown. The system may include a controller in control of the multi-channel GPS receiver that assigns each GPS satellite ID that corresponds to each of the plurality of GPS signals received by the multi-channel GPS receiver to an individual channel of the multi-channel GPS receiver and a monitoring channel selected by the controller from the multi-channel GPS receiver that monitors the received GPS signal.

US Patent:

20110316741, Dec 29, 2011

Filed:

Jul 29, 2011

Appl. No.:

13/193863

Inventors:

Mangesh Chansarkar - Fremont CA, US
Sundar Raman - Fremont CA, US
Charles P. Norman - Huntington Beach CA, US
Paul A. Underbrink - Lake Forest CA, US
Henry D. Falk - Long Beach CA, US
James Brown - Laguna Beach CA, US
Robert Harvey - San Francisco CA, US
Peter Michali - Irvine CA, US
Williams Higgins - Marlon IA, US
Gensheng Zhang - Cupertino CA, US
Qingwen Zhang - Irvine CA, US

Assignee:

SiRF Technology Inc. - San Jose CA

International Classification:

G01S 19/34
G01S 19/37

US Classification:

34235774, 34235777

Abstract:

Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centering and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a system for mode switching between a navigational signal; and power control module for receiver.

US Patent:

20120188127, Jul 26, 2012

Filed:

Mar 30, 2012

Appl. No.:

13/435687

Inventors:

Gengsheng Zhang - Cupertino CA, US
Qingwen Zhang - Irvine CA, US
Paul Underbrink - Lake Forest CA, US

Assignee:

CSR TECHNOLOGY INC. - Sunnyvale CA

International Classification:

G01S 19/37

US Classification:

34235777

Abstract:

Satellite positioning system (SATPS) receiver that has a plurality of modes and channels, where a timeline module configures the channels based on the mode of operation of the SATPS receiver and reconfigures the channels if the mode of operation of the SATPS changes.

US Patent:

20150097728, Apr 9, 2015

Filed:

Dec 12, 2014

Appl. No.:

14/568520

Inventors:

- San Jose CA, US
Sundar Raman - Fremont CA, US
Charles P. Norman - Huntington Beach CA, US
Paul A. Underbrink - Lake Forest CA, US
Henry D. Falk - Long Beach CA, US
James Brown - Laguna Beach CA, US
Robert Harvey - San Francisco CA, US
Peter Michali - Irvine CA, US
William Higgins - Marlon IA, US
Gensheng Zhang - Cupertino CA, US
Qingwen Zhang - Irvine CA, US

International Classification:

G01S 19/13
G01S 19/34
G01S 19/24

US Classification:

34235763, 34235774, 34235751

Abstract:

Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centring and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a system for mode switching between a navigational signal; and power control module for receiver.