发明授权
US06842875B2 Signal processing apparatus and method, and data recording/reproducing apparatus using the same
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信号处理装置和方法,以及使用该信号处理装置和方法的数据记录/再现装置
- 专利标题: Signal processing apparatus and method, and data recording/reproducing apparatus using the same
- 专利标题(中): 信号处理装置和方法,以及使用该信号处理装置和方法的数据记录/再现装置
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申请号: US10269866申请日: 2002-10-15
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公开(公告)号: US06842875B2公开(公告)日: 2005-01-11
- 发明人: Masaharu Kondo , Seiichi Mita
- 申请人: Masaharu Kondo , Seiichi Mita
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Mattingly, Stanger & Malur, P.C.
- 优先权: JP10-154178 19980603; JP11-119191 19990427
- 主分类号: G11B20/14
- IPC分类号: G11B20/14 ; G11B20/18 ; H03M13/00 ; H03M13/31
摘要:
A signal processing apparatus capable of reducing burst error generation, and a highly reliable data recording/reproducing apparatus using this signal processing apparatus. This signal processing apparatus has a simple error detection/correction circuit provided just before a modulated code demodulator, thereby correcting error of a pattern easy to occur in a maximum likelihood decoder. The simple error detection/correction circuit is an error detection/correction circuit using a linear error correction code, for example, an error correction code (CRCC) formed of a cyclic code. Thus the number of burst errors after the modulated code demodulator can be decreased.
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