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:
Apr. 02, 2002
Filed:
Mar. 08, 1999
Applicant:
Inventors:
James W. Startup, Chandler, AZ (US);
Jim E. Helm, Gilbert, AZ (US);
Shawn Wesley Hogberg, Chandler, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 7/20 ; H04B 7/185 ;
U.S. Cl.
CPC ...
H04Q 7/20 ; H04B 7/185 ;
Abstract
A method and apparatus for acquiring satellite signals and subscriber unit signals utilizes broadcast beams ( ) and acquisition beams ( ) projected from a satellite ( ). The broadcast beams ( ) and acquisition beams ( ) form broadcast acquisition beam pairs that are swept within the footprint ( ) of the satellite ( ) on the surface of the earth. Broadcast bursts are transmitted by the satellite ( ) in the broadcast beams ( ), and acquisition bursts broadcast by subscriber units ( ) are received by the satellite ( ) in acquisition beams ( ).