发明名称 |
Code error detection and correction method and apparatus |
摘要 |
Method and apparatus for detecting and correcting code errors in processing a digital signal such as a digital audio signal are disclosed. An error word correcting parity word generated from a plurality of data words is added to the plurality of data words to form a first frame, and the data words and the parity word of a plurality of different first frames are distributed in a second frame and a plurality of additional parity words for detecting and correcting error words in the second frame are added to the second frame to form a Reed-Solomon code. The code errors are detected and corrected using this code. A code error rate counter is provided, and when an output of the code error counter exceeds a predetermined count, the code error correction is inhibited for a predetermined time period or until the code error rate reaches a second predetermined code error rate.
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申请公布号 |
US4541091(A) |
申请公布日期 |
1985.09.10 |
申请号 |
US19830502634 |
申请日期 |
1983.06.09 |
申请人 |
HITACHI, LTD. |
发明人 |
NISHIDA, MASAMI;NISHIMURA, KEIZO;ARAI, TAKAO;AMADA, NOBUTAKA |
分类号 |
G11B20/18;H03M13/00;H03M13/15;(IPC1-7):G06F11/10 |
主分类号 |
G11B20/18 |
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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