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. 11, 2010
Filed:
Feb. 07, 2007
Joseph Santoru, Agoura Hills, CA (US);
Guangcai Zhou, Agoura Hills, CA (US);
Ernest C. Chen, San Pedro, CA (US);
Dennis Lai, Cerritos, CA (US);
Shamik Maitra, Redondo Beach, CA (US);
Joseph Santoru, Agoura Hills, CA (US);
Guangcai Zhou, Agoura Hills, CA (US);
Ernest C. Chen, San Pedro, CA (US);
Dennis Lai, Cerritos, CA (US);
Shamik Maitra, Redondo Beach, CA (US);
The DIRECTV Group, Inc., El Segundo, CA (US);
Abstract
Methods and apparatuses for acquiring and demodulating a data stream transmitted in a communication system. A method in accordance with the present invention comprises finding a boundary of a physical layer frame (PLFrame) in the data stream, finding a first 26 bits of a Unique Word (UW) associated with the data stream, finding a scrambling code utilizing the UW, and using a decoding procedure to determine a modulation type and code rate used for desired signals within the data stream.