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:
Sep. 20, 2011
Filed:
Aug. 22, 2006
Vivian Hsiun, Yorba Linda, CA (US);
Alexander G. Macinnis, Los Altos, CA (US);
Xiaodong Xic, Fremont, CA (US);
Sheng Zhong, Fremont, CA (US);
Vivian Hsiun, Yorba Linda, CA (US);
Alexander G. MacInnis, Los Altos, CA (US);
Xiaodong Xic, Fremont, CA (US);
Sheng Zhong, Fremont, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
The present invention provides an apparatus and method for providing a programmable inverse discrete cosine transform, wherein the transform coefficients are loaded into a memory area of a core transform device and a variety of coding standards can thereby be handled by the same programmable core device. The core device is configured to process a certain sized data block, and the incoming source blocks are converted to conform to this size. After transformation, the proper sized result can be extracted from the transform device output. A switchable speed-up mode provides for 4-point transforms, rather than 8-point transforms. Alternatively, the invention also provides for dedicated transform hardware to be switchably used in conjunction with programmable transform hardware, depending upon the type of coding being used, and the speed of inverse transform desired.