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1. 发明公开

EP1876716A1 DECODING APPARATUS AND DECODING METHOD 审中-公开
标题翻译： DEKODIERUNGSVORRICHTUNG UND DEKODIERUNGSVERFAHREN
公开(公告)号：EP1876716A1
公开(公告)日：2008-01-09
申请号：EP06745481.9
申请日：2006-04-20
申请人： Sony Corporation
发明人： YOKOKAWA, Takashi, c/o SONY CORPORATION , MIYAUCHI, Toshiyuki, c/o SONY CORPORATION , SHINYA, Osamu, c/o SONY CORPORATION
IPC分类号： H03M13/19
CPC分类号： H03M13/1168 , H03M13/1114 , H03M13/1137 , H03M13/116 , H03M13/6505 , H03M13/6566
摘要： The present invention relates to a decoding apparatus and a decoding method, which are capable of decoding LDPC codes with a high degree of precision while preventing the circuit scale of the decoding apparatus from increasing. A computation section 1102 carries out a first computation process corresponding to three check-node processes by making use of decoding intermediate results D1101 supplied from a decoding intermediate result storage memory 1104 by way of a cyclic shift circuit 1101, and stores the result of the first computation process in a decoding intermediate result storage memory 1103. A computation section 415 carries out a second computation process corresponding to six variable-node processes by making use of decoding intermediate results D414 supplied from a decoding intermediate result storage memory 1103 by way of a cyclic shift circuit, and stores the decoding intermediate result D415 in the decoding intermediate result storage memory 1104. The present invention can be applied to, for example, a tuner for receiving (digital) satellite broadcasts.
摘要翻译：解码装置和解码方法技术领域本发明涉及一种解码装置和解码方法，其能够在防止解码装置的电路规模增加的同时高精度地解码LDPC码。计算部1102通过利用通过循环移位电路1101从解码中间结果存储存储器1104提供的解码中间结果D1101，进行与三个校验节点处理相对应的第一计算处理，并且存储第一解码中间结果存储存储器1103中的计算处理。计算部415通过利用从解码中间结果存储存储器1103提供的解码中间结果D414通过循环的方式执行与六个可变节点处理相对应的第二计算处理并将解码中间结果D415存储在解码中间结果存储存储器1104中。本发明可以应用于例如用于接收（数字）卫星广播的调谐器。

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