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:
Oct. 31, 2000
Filed:
May. 20, 1998
Shinji Toyoyama, Sakurai, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A variable-length coding device includes: a code presence/absence determination table storing information concerning whether a code is allocated or not correspondingly to a prescribed region in a region represented by a combination of run data and level data; a first region determination circuit and a second region determination circuit determining whether a pair of run data and level data is contained in the prescribed region; and a run.level pair conversion circuit, a first code table, and a second code table that perform coding, referring to the code presence/absence determination table, if the first region determination circuit and the second region determination circuit determine that the pair of run data and level data is contained in the prescribed region, and that perform coding without referring to the code presence/absence determination table if the first region determination circuit and the second region determination circuit determine that the pair of run data and level data is not contained in the prescribed region.