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. 19, 2009
Filed:
Feb. 15, 2006
Makiko Kan, Tokyo, JP;
Toshiyuki Miyauchi, Tokyo, JP;
Kazuo Watanabe, Tokyo, JP;
Takashi Yokokawa, Kanagawa, JP;
Makiko Kan, Tokyo, JP;
Toshiyuki Miyauchi, Tokyo, JP;
Kazuo Watanabe, Tokyo, JP;
Takashi Yokokawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention provides a decoding apparatus for carrying out a decoding process on a ring-R linear code. The decoding apparatus includes coded-word holding means for acquiring a coded word with a code length reduced by omission of some symbols from the coded word and for holding the coded word; known-information addition means for attaching a reliability level of each of the symbols omitted from the coded word to reduce its code length as known symbols each having a known value to the coded word held by the coded-word holding means as known information; and repetitive decoding means for repeatedly carrying out a decoding process using belief propagation on the coded word including the known information attached to the coded word by the known-information addition means.