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:
May. 16, 2006
Filed:
Sep. 25, 2000
Kar Yung, Torrance, CA (US);
Frank A. Hagen, Palos Verdes Estates, CA (US);
Ying Feria, Manhattan Beach, CA (US);
Donald C. D. Chang, Thousand Oaks, CA (US);
Kar Yung, Torrance, CA (US);
Frank A. Hagen, Palos Verdes Estates, CA (US);
Ying Feria, Manhattan Beach, CA (US);
Donald C. D. Chang, Thousand Oaks, CA (US);
The DIRECTV Group, Inc., El Segundo, CA (US);
Abstract
A method for coherent phase synchronous CDMA communications between a gateway and multiple subscribers via multiple transponder platforms that includes the step of synchronizing a local reference clock for each subscriber in a service area to a single master reference clock for multiple transponder platforms wherein the distance separating the transponder platforms is constrained to a range wherein the local reference clocks for all subscribers have substantially the same phase with respect to the master reference clock.