The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 12, 2011

Filed:

Mar. 19, 2007
Applicants:

Mahesh Chowdhary, San Jose, CA (US);

Qiyue Zhang, Cupertino, CA (US);

Mangesh Chansarkar, Irvine, CA (US);

Gengsheng Zhang, Cupertino, CA (US);

Inventors:

Mahesh Chowdhary, San Jose, CA (US);

Qiyue Zhang, Cupertino, CA (US);

Mangesh Chansarkar, Irvine, CA (US);

Gengsheng Zhang, Cupertino, CA (US);

Assignee:

SIRF Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Systems and methods for detecting a vehicle static condition are provided. In this regard, a representative system includes a sensor operative to detect at least one of acceleration and angular rate of a vehicle. The sensor is further operative to generate a vehicle vibration profile based on the at least one of the detected acceleration and angular rate of the vehicle. The system further includes a computing device operative to receive the vehicle vibration profile from the sensor, the computing device being further operative to determine whether the vehicle is stationary or moving based on the vehicle vibration profile. A representative method for detecting a vehicle static condition includes detecting at least one of acceleration and angular grade of a vehicle; generating a vehicle vibration profile based on at least one of the detected acceleration and angular grade of the vehicle; receiving the vehicle vibration profile; and determining whether the vehicle is stationary or moving based on the vehicle vibration profile.


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