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. 31, 2005
Filed:
Mar. 29, 2001
Masayuki Hattori, Kanagawa, JP;
Jun Murayama, Tokyo, JP;
Toshiyuki Miyauchi, Tokyo, JP;
Kouhei Yamamoto, Tokyo, JP;
Takashi Yokokawa, Tokyo, JP;
Masayuki Hattori, Kanagawa, JP;
Jun Murayama, Tokyo, JP;
Toshiyuki Miyauchi, Tokyo, JP;
Kouhei Yamamoto, Tokyo, JP;
Takashi Yokokawa, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
To carry out error correction coding and decoding according to a serially concatenated coded modulation system with a small circuit scale and high performance. A coding apparatusis designed so that an interleaverinterleaves order of bits so that all weights are coded by a convolutional coderwith respect to data comprising a series of 3 bits supplied from a convolutional coder; the convolutional codermakes as small as possible the total value of the hamming distance of input bit between passes to be the minimum Euclidean distance with respect to data of 3 bits supplied from the interleaver; and a multi-value modulation mapping circuitcauses the hamming distance of input bits in the convolutional coderas the distance between signal point on the I/Q plane is smaller to subject data of 3 bits supplied from the convolutional coderto mapping.