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:
Aug. 19, 2008
Filed:
May. 25, 2004
Paul W. Mcburney, San Francisco, CA (US);
Frederic Vaucher, San Francisco, CA (US);
Paul W. McBurney, San Francisco, CA (US);
Frederic Vaucher, San Francisco, CA (US);
Seiko Epson Corporation, Tokyo, JP;
eRide, Inc., San Francisco, CA (US);
Abstract
A navigation satellite receiver accepts satellite-position table messages comprising truncated GPS ephemeris parameters. In particular, at least one of the two harmonic corrections to inclination angle, Cic and Cis, are not communicated and not used in the solution of navigation receiver position. In a first method embodiment of the present invention, both the two harmonic corrections to inclination angle, Cic and Cis, are omitted from the computation. In a second method embodiment of the present invention, only one of the two harmonic corrections to inclination angle, Cic and Cis, are omitted from the computation, depending on Min(Csin(2φ), Ccos(2φ)).