发明名称 |
PCM signal reproducing apparatus including error/erasure correction circuit |
摘要 |
A digital signal reproducing apparatus reproduces coded digital signal data which have been recorded on a magnetic tape. The digital signal reproducing apparatus includes first and second decoders. These decoders perform the error correction and erasure correction. The second decoder has a higher error detection capability than that of the first decoder. The reproducing apparatus further includes a checking circuit for checking code errors contained in the coded digital signal data. When the code errors detected by the checking circuit may occur simultaneously, a first editing-point detection signal is produced. When the first editing-point detection signal is output, a judgement is done that the editing-point may exist in the digital signal data, and the first decoder is changed to the second decoder for a predetermined time period. When the second decoder detects correction-prohibited data portion, a second editing-point detection signal. Upon receipt of the second editing-point detection signal, the cross-fade process is carried out for the digital signal data by an editing processor.
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申请公布号 |
US4829525(A) |
申请公布日期 |
1989.05.09 |
申请号 |
US19870112035 |
申请日期 |
1987.10.23 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
SUGIYAMA, KAZUHIRO;ONISHI, KEN;INOUE, TOHORU |
分类号 |
G11B20/18;G11B27/032;G11B27/036 |
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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