发明授权
- 专利标题: Method and apparatus for error data recovery
- 专利标题(中): 错误数据恢复的方法和装置
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申请号: US09249489申请日: 1999-02-12
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公开(公告)号: US07010737B2公开(公告)日: 2006-03-07
- 发明人: Tetsujiro Kondo , Sugata Ghosal , Yasuhiro Fujimori , James J. Carrig , Yasuaki Takahashi , Takahiro Nagano
- 申请人: Tetsujiro Kondo , Sugata Ghosal , Yasuhiro Fujimori , James J. Carrig , Yasuaki Takahashi , Takahiro Nagano
- 申请人地址: JP Tokyo US NJ Park Ridge
- 专利权人: Sony Corporation,Sony Electronics Inc.
- 当前专利权人: Sony Corporation,Sony Electronics Inc.
- 当前专利权人地址: JP Tokyo US NJ Park Ridge
- 代理机构: Blakely, Sokoloff, Taylor & Zafman LLP
- 主分类号: G06F11/30
- IPC分类号: G06F11/30 ; G08C25/00 ; H03M13/00 ; H04L1/00
摘要:
The present invention provides a mechanism for preventing quality degradation of decoded data during the decoding of encoded data. In one embodiment, error propagation is detected and corresponding data is flagged. An error recovery process is then applied to the flagged data. In an alternate embodiment, scores for hypotheses are calculated for lost/damaged data. A score distribution is used for detection of the false hypotheses. The data are flagged if their score distribution is within a range defined by a threshold and an error recovery process is applied to recover those data having associated error flags set.
公开/授权文献
- US20030212944A1 METHOD AND APPARATUS FOR ERROR DATA RECOVERY 公开/授权日:2003-11-13