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:
Nov. 23, 1999
Filed:
Mar. 28, 1997
Applicant:
Inventors:
Rodric C Fan, Fremont, CA (US);
Dave Mleczko, San Jose, CA (US);
Assignee:
Vectorlink, Inc., Fremont, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
34235711 ;
Abstract
A method and apparatus for determining attitude information using a down conversion reference and a carrier phase and code phase generator. The apparatus uses individual phase registers for signal received from each antenna to solve the phase difference concurrently. The invention also discloses an attitude sensing method where only one receiving antenna is required. A method and structure for using variable correlation width is also disclosed to optimize noise cancellation under different noise environment.