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:
Dec. 19, 2000
Filed:
Nov. 25, 1998
Applicant:
Inventors:
Qiyue John Zhang, Cupertino, CA (US);
John DeLucchi, Santa Cruz, CA (US);
Assignee:
Trimble Navigation Limited, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C / ; G06G / ; G01S / ; H04B / ;
U.S. Cl.
CPC ...
701215 ; 34235706 ; 701213 ; 701214 ;
Abstract
Method and apparatus for estimating a line bias for a signal received from a common signal source at each of two or more GPS signal receivers. Single difference solutions are obtained for angular orientation of an antenna array and for antenna location, using a two-thread or two-procedure process for determining and updating line bias variation within each of a sequence of time intervals.