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:
Jan. 20, 2009
Filed:
Jan. 16, 2007
Applicant:
Arthur W. Wang, Buena Park, CA (US);
Inventor:
Arthur W. Wang, Buena Park, CA (US);
Assignee:
The DIRECTV Group, Inc., El Segundo, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A communication system has a plurality of ground stations and a plurality of satellites located in a first orbit with respect to the earth. The satellites generate a plurality of beams corresponding to a respective plurality of cell. The plurality of beams has widths that vary relative to position in the orbit to maintain a cell size of the plurality of cells. A plurality of user terminals within the cells receives communication signals from the satellite.