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. 06, 2005
Filed:
Dec. 14, 2001
Donald C. D. Chang, Thousand Oaks, CA (US);
Wah L. Lim, Newport Beach, CA (US);
Ming U. Chang, Rancho Palos Verdes, CA (US);
Donald C. D. Chang, Thousand Oaks, CA (US);
Wah L. Lim, Newport Beach, CA (US);
Ming U. Chang, Rancho Palos Verdes, CA (US);
The DirecTV Group, Inc., El Segundo, CA (US);
Abstract
A mobile communication system includes at least one user terminal and a plurality of satellites which transmit and receive a plurality of communication signals to and from the user terminal. The communication signals transmitted to and received from the plurality of satellites by a gateway station. The gateway station in turn is in communication with a processing center to process said communication signals. The processing center uses polystatic triangulation to determine a position of the at least one user terminal and redirect a signal from at least one said plurality of satellites in response to the determined position of the at least one user terminal.