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. 07, 2001
Filed:
Jul. 07, 1997
Applicant:
Inventors:
Harold Lewis Longaker, Houston, TX (US);
Leonid Sheynblat, Belmont, CA (US);
Assignee:
Trimble Navigation Limited, Sunnyvale, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/185 ; G01S 5/02 ;
U.S. Cl.
CPC ...
H04B 7/185 ; G01S 5/02 ;
Abstract
A system for differential navigation of an autonomous vehicle in the location with the limited visibility of the sky is disclosed. The system employs a plurality of satellites, a plurality of ground transmitters, and a base station. Different configurations for the minimum number of the satellites and the minimum number of ground transmitters are disclosed.