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, 1999
Filed:
May. 30, 1997
Taner Ozcelik, Fremont, CA (US);
Shirish C Gadre, San Jose, CA (US);
Moshe Bublil, Sunnyvale, CA (US);
Sabyasachi Dutta, San Jose, CA (US);
Subroto Bose, Santa Clara, CA (US);
Sony Corporation, Tokyo, JP;
Sony Electronics Inc, Park Ridge, NJ (US);
Abstract
A decoding circuit for decoding (or decompressing) compressed video data includes an RL circuit, such as MPEG encoded video data. The RL circuit includes a buffer memory for storing run-level pairs during the decoding process. Because the buffer memory in the RL circuit can store ran-level pairs, Huffman-decoding and header decoding, performed by a variable length decoding (VLD) circuit, is decoupled from inverse discrete transform decoding, performed by an IDCT circuit. This decoupling speeds up the decoding pipeline by allowing more continuous operation by both the VLD and IDCT circuits.