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.
Patent No.:
Date of Patent:
Feb. 04, 2014
Filed:
Jul. 06, 2007
Kirk S. Taylor, San Diego, CA (US);
Liren Chen, San Diego, CA (US);
Jack Steenstra, San Diego, CA (US);
Kirk S. Taylor, San Diego, CA (US);
Liren Chen, San Diego, CA (US);
Jack Steenstra, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Location of a wireless communication device is determined by a combination of geolocation and a detection of augmenting data such as acceleration and/or speed over time measurements. A last known terrestrial navigation fix is established based on reliable terrestrial navigation or GPS data. A zone of valid location fixes based on the last known terrestrial navigation fix and an output of a rate detection circuit can be established. A weighted average is taken of using independent location measurement and detected location using last known reliable position plus change in position by integrating position changes over time.