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:
Sep. 17, 2002
Filed:
May. 24, 2001
Applicant:
Inventors:
Gan-Tai Tseng, Rancho Palos Verdes, CA (US);
Jo-Lien Yang, Palos Verdes Estates, CA (US);
Steven Lloyd Johns, Leesburg, VA (US);
Cheng A. Wu, Woodland Hills, CA (US);
Assignee:
Aerospace Corporation, El Segundo, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 5/14 ;
U.S. Cl.
CPC ...
G01S 5/14 ;
Abstract
A null slit antenna pattern receives GPS signals from at least three GPS satellites functioning as pseudo stars for spin rate and spin axis attitude determination of a spinning space vehicle in an earth orbit below the GPS satellites.