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. 30, 2000
Filed:
Jun. 08, 1998
Shigenori Kinouchi, Tokyo, JP;
Akira Sawada, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
To provide a VLC decoder having a decoding speed sufficiently high to be applicable for decoding MPEG 2 data, and having an appropriate circuit size to be integrated on an IC chip, a VLC decoder comprises: a first decode table (102) implemented with logic circuits for decoding a 'zero-run code' at one clock; a second decode table (104) implemented on a memory device for decoding other VLC making use of a tree searching technique; a switching means (103, 105, 108) for switching from the first decode table (102) to the second decode table (104) when EOB code is decoded and switching from the second decode table (104) to the first decode table (102) when the 'zero-run code' begins.