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. 18, 2006
Filed:
Feb. 26, 2002
David Chaohua Wu, San Diego, CA (US);
Hoang Nhu, Irvine, CA (US);
Russ Lambert, Fountain Valley, CA (US);
Alexander G. Macinnis, Los Altos, CA (US);
Ronald Crochiere, San Diego, CA (US);
David Chaohua Wu, San Diego, CA (US);
Hoang Nhu, Irvine, CA (US);
Russ Lambert, Fountain Valley, CA (US);
Alexander G. MacInnis, Los Altos, CA (US);
Ronald Crochiere, San Diego, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A system and method are disclosed for performing digital multi-channel decoding of a BTSC composite audio signal. Analog-to-digital conversion is performed on a composite analog audio signal at a fast clock rate to generate a composite digital audio signal at a first sample rate. Digital frequency compensation is performed on the composite digital audio signal at the first sample rate to generate a compensated composite audio signal. Digital channel demodulation and filtering are performed on the compensated composite audio signal at the first sample rate to generate a first single channel audio signal at a second sample rate.