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:
Aug. 03, 2010
Filed:
May. 26, 2004
Ramkumar Prakasam, Santa Clara, CA (US);
Alexander G Macinnis, Los Altos, CA (US);
Olive Tao, Saratoga, CA (US);
Xiaodong Xie, Fremont, CA (US);
Ramkumar Prakasam, Santa Clara, CA (US);
Alexander G MacInnis, Los Altos, CA (US);
Olive Tao, Saratoga, CA (US);
Xiaodong Xie, Fremont, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A CABAC decoding engine is devised to cover all aspects of decoding all CABAC-coded syntax elements for AVC. This CABAC decoding engine acts like a Co-processor to another Processor (CPU), which guides the decoding of the bit stream. The CABAC decoding engine or Co-processor has the following highlights: unique context model retrieving and storing method is developed to allow a complete syntax element to be decoded in one hardware (H/W) execution cycle (not necessarily one clock cycle.); H/W assisted approach is provided to accelerate context model initialization; H/W based approach is incorporated to allow fast de-binarization; H/W based approach is provided to allow a block of syntax elements to be decoded instead of one by one; and dedicated H/W accelerators are incorporated to decode special syntax elements.