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:
Feb. 20, 2001
Filed:
Aug. 19, 1996
Cliff Reader, Saratoga, CA (US);
Jae Cheol Son, Cupertino, CA (US);
Amjad Qureshi, San Jose, CA (US);
Le Nguyen, Monte Sereno, CA (US);
Mark Frederiksen, Schaumburg, IL (US);
Tim Lu, Schaumburg, IL (US);
Samsung Electronics Co., Ltd., Seoul, KR;
Abstract
A computer system includes three processors capable to operate concurrently—a scalar processor, a vector processor, and a bitstream processor. In encoding or decoding of video data, the vector processor performs operations that can be efficiently performed by a single instruction multiple data processor, for example, a discrete cosine transform (DCT) and motion compensation. The bitstream processor performs Huffman and RLC encoding or decoding. The bitstream processor can switch contexts to enable the computer system to process several data streams concurrently. The scalar and vector processors can be programmed to execute a single arithmetic or Boolean instruction. The bitstream processor cannot be programmed to execute a single arithmetic or Boolean instruction, but can be programmed to perform an entire video data processing operation. The computer system can handle different video standards. Different Huffman encoding and decoding tables are coded to share memory. Logic is supplied to derive correct Huffman codes from the coded tables stored in the shared memory.