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:
Mar. 07, 2006
Filed:
Mar. 23, 2001
Jun Murayama, Tokyo, JP;
Masayuki Hattori, Kanagawa, JP;
Toshiyuki Miyauchi, Tokyo, JP;
Kouhei Yamamoto, Tokyo, JP;
Takashi Yokokawa, Tokyo, JP;
Jun Murayama, Tokyo, JP;
Masayuki Hattori, Kanagawa, JP;
Toshiyuki Miyauchi, Tokyo, JP;
Kouhei Yamamoto, Tokyo, JP;
Takashi Yokokawa, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
Error correction coding and decoding according to a serial concatenated modulation system are carried out under high code rate. A coding apparatus 1 comprises three convolutional coders 10, 30 and 50 for carrying out convolutional operation; two interleavers 20 and 40 for rearranging order of data input; and a multi-value mapping circuit 60 for carrying out mapping of a single point on the basis of a predetermined modulation system. The coding apparatus 1 carries out convolutional operation whose code rate is '⅔' as coding of extrinsic codes by a convolutional coder 10, and carries out convolutional operation whose code rate is '1' as coding of inner codes by a convolutional coder 50, and a multi-value modulation mapping circuit 60 applies mapping to a transmission symbol of a 8 PSK modulation system to output it as a single code transmission symbol.