发明授权
US5940416A Digital signal decoding apparatus and a decoding method used therein
失效
数字信号解码装置及其中使用的解码方法
- 专利标题: Digital signal decoding apparatus and a decoding method used therein
- 专利标题(中): 数字信号解码装置及其中使用的解码方法
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申请号: US881508申请日: 1997-06-24
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公开(公告)号: US5940416A公开(公告)日: 1999-08-17
- 发明人: Takushi Nishiya , Hideyuki Yamakawa , Shoichi Miyazawa, deceased , Seiichi Mita , Yoichi Uehara , Takashi Nara , Akihiko Hirano
- 申请人: Takushi Nishiya , Hideyuki Yamakawa , Shoichi Miyazawa, deceased , Seiichi Mita , Yoichi Uehara , Takashi Nara , Akihiko Hirano
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi Ltd.
- 当前专利权人: Hitachi Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX8-168976 19960628
- 主分类号: G11B20/18
- IPC分类号: G11B20/18 ; G11B20/10 ; H03M13/23 ; H03M13/41 ; H04L25/497 ; H03M13/00
摘要:
A calculation concerning the input of a signal is removed from a branch metric calculation processing on a trellis diagram of an extended partial response class, and the calculation of branch metrics and the selection of survivor paths can be carried out by the subtraction of the survivor paths and the comparison of constants.
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