Rizwan R Ahmed

US Patent:

7982668, Jul 19, 2011

Filed:

Oct 7, 2008

Appl. No.:

12/246914

Inventors:

Rizwan Ahmed - Alexandria VA, US
Rayman Wai Pon - Cupertino CA, US
Paul A. Conflitti - Los Gatos CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

G01S 19/27

US Classification:

34235766

Abstract:

The subject matter disclosed herein relates to a system and method for processing multiple navigation signal components received from multiple global navigation satellite systems (GNSS′). In a particular implementation, a code phase in a first navigation signal component may be detected based, at least in part, on information in a second navigation signal component.

US Patent:

8237611, Aug 7, 2012

Filed:

Jul 18, 2011

Appl. No.:

13/185246

Inventors:

Rizwan Ahmed - Alexandria VA, US
Rayman Wai Pon - Cupertino CA, US
Paul A. Conflitti - Los Gatos CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

G01S 19/35

US Classification:

34235775

Abstract:

The subject matter disclosed herein relates to a system and method for processing multiple navigation signal components received from multiple global navigation satellite systems (GNSS'). In a particular implementation, a code phase in a first navigation signal component may be detected based, at least in part, on information in a second navigation signal component.

US Patent:

8442095, May 14, 2013

Filed:

Jun 14, 2008

Appl. No.:

12/139458

Inventors:

Rizwan Ahmed - Alexandria VA, US
Emilija M. Simic - La Jolla CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04B 1/69

US Classification:

375150

Abstract:

Methods and apparatus for code phase processing in a wireless communication device are described herein. A wireless device performs code phase search on a pseudo random code spread signal received over a wireless channel. A correlator correlates the received signal to a plurality of code phases in each of a plurality of frequency hypothesis. A maximum peak and a second peak are determined from the correlation results. Cross correlation processing is performed on the maximum peak and the maximum peak is discarded in favor of the second peak for position processing based on the results of the cross correlation.

US Patent:

20100117884, May 13, 2010

Filed:

Nov 11, 2008

Appl. No.:

12/268861

Inventors:

Rizwan Ahmed - Alexandria VA, US
Douglas Neal Rowitch - Del Mar CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

G01S 1/00
G01S 7/38

US Classification:

342 14, 34235712

Abstract:

The subject matter disclosed herein relates to a system and method for processing multiple navigation signal components received from multiple global navigation satellite systems (GNSS′). In a particular implementation, an energy detection in a first navigation signal component is classified based, at least in part, on information in a second navigation signal component.