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:
May. 14, 2013
Filed:
Apr. 16, 2010
David Allan Tuck, Costa Mesa, CA (US);
Mangesh Chansarkar, Irvine, CA (US);
Ardalan Heshmati, Saratoga, CA (US);
David Allan Tuck, Costa Mesa, CA (US);
Mangesh Chansarkar, Irvine, CA (US);
Ardalan Heshmati, Saratoga, CA (US);
CSR Technology Holdings Inc., Sunnyvale, CA (US);
Abstract
The present invention is related to position calculation and navigation systems, and more particularly, to a method and apparatus for making accuracy improvements to a GPS receiver's navigation solutions. According to a first aspect, selective cartography information from a map database accessed by a GPS receiver from a location-aiding device is integrated into the position calculations performed by the GPS receiver. According to another aspect, selective cartography information includes indices representing associated attributes of geographical objects, such as, a width-indicator index for a road segment.