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:
Jul. 27, 1999
Filed:
Apr. 10, 1997
Applicant:
Inventors:
Alfred Tadros, San Jose, CA (US);
Hai Ping Jin, Sunnyvale, CA (US);
David Mleczko, San Jose, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; G01S / ;
U.S. Cl.
CPC ...
342357 ; 701214 ;
Abstract
A method for reducing master antenna tracking errors in a multiplexing GPS receiver resulting in a differential phase measurement scheme which is insensitive to the master antenna tracking loop errors is disclosed. The master antenna tracking loop error at a given update K is subtracted from a phase measurement associated with a slave antenna signal at update K. The method comprises the determination of interpolation coefficients by which the master antenna tracking loop errors are weighted in order to minimize each of the slave antenna differential measurements.