发明名称 |
Decoding apparatus, communication apparatus and decoding method |
摘要 |
A decoding apparatus includes a branch metric calculation unit 32 for sequentially Viterbi-decoding a plurality of data sequences over respective data lengths from the start at the same time, an ACS (Add-Compare-Select) circuit 35 and a stop register 44 for sequentially comparing likelihoods of respective data sequences which were Viterbi-decoded at the same time and stopping said simultaneous decoding means from decoding respective data sequences if it is determined based upon compared results if a likelihood of a certain data sequence is lower than a predetermined threshold value. As a result, normalization information is reflected on the judgment and a desired data sequence is judged by Viterbi-decoding any one of a plurality of data sequences with simple processing without useless processing.
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申请公布号 |
US2005066260(A1) |
申请公布日期 |
2005.03.24 |
申请号 |
US20040926089 |
申请日期 |
2004.08.26 |
申请人 |
SONY ERICSSON MOBILE COMMUNICATIONS JAPAN, INC. |
发明人 |
NATORI MAKOTO |
分类号 |
G06F11/10;H03M13/41;H04L1/00;(IPC1-7):H03M13/03;H03M13/00 |
主分类号 |
G06F11/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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