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:
Jul. 17, 2007
Filed:
Aug. 31, 2001
Ying J. Feria, Manhattan Beach, CA (US);
Donald C. D. Chang, Thousand Oaks, CA (US);
Ming U. Chang, Palos Verdes, CA (US);
Ying J. Feria, Manhattan Beach, CA (US);
Donald C. D. Chang, Thousand Oaks, CA (US);
Ming U. Chang, Palos Verdes, CA (US);
The DirectTV Group, Inc., El Segundo, CA (US);
Abstract
A method of increasing utilization of user link bandwidth for a code division multiple access communications system is disclosed that includes the steps of selecting a set of orthogonal complex codes each having a code length that is greater than a code length of an optimum real code and less than or equal to a spreading code length; and transferring symbols across at least one of a plurality of user links to or from at least one of a corresponding plurality of user terminals wherein the symbols are represented by a corresponding one of the set of orthogonal complex codes.