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:
Jun. 14, 2011
Filed:
Aug. 25, 2006
Judith Wang, Irvine, CA (US);
Guangcai Zhou, Agoura Hills, CA (US);
Joseph Santoru, Agoura Hills, CA (US);
Ernest C. Chen, San Pedro, CA (US);
Shamik Maitra, Redondo Beach, CA (US);
Dennis Lai, Cerritos, CA (US);
Tung-sheng Lin, Claremont, CA (US);
Judith Wang, Irvine, CA (US);
Guangcai Zhou, Agoura Hills, CA (US);
Joseph Santoru, Agoura Hills, CA (US);
Ernest C. Chen, San Pedro, CA (US);
Shamik Maitra, Redondo Beach, CA (US);
Dennis Lai, Cerritos, CA (US);
Tung-Sheng Lin, Claremont, CA (US);
The DIRECTV Group, Inc., El Segundo, CA (US);
Abstract
Methods and apparatuses for determining scrambling codes for minimizing co-channel interference in a communication system. A method in accordance with the present invention comprises defining at least one initial default sequence, generating a scrambling code, scrambling a signal using the generated scrambling code, comparing the scrambled signal with all other scrambled signals meeting a specified criterion, and saving the scrambling code word if the comparison determines that the signal scrambled with the scrambling code also meets the specified criterion. The scrambling codes can be compared with each other for cross-correlation purposes to determine whether they meet the specified criterion based on laboratory testing.