发明授权
- 专利标题: Error signal generating circuit
- 专利标题(中): 误差信号发生电路
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申请号: US329789申请日: 1989-04-21
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公开(公告)号: US5070491A公开(公告)日: 1991-12-03
- 发明人: Kiyoshi Horie
- 申请人: Kiyoshi Horie
- 申请人地址: JPX Tokyo
- 专利权人: Kabushiki Kaisha CSK
- 当前专利权人: Kabushiki Kaisha CSK
- 当前专利权人地址: JPX Tokyo
- 主分类号: G11B7/0033
- IPC分类号: G11B7/0033 ; G11B7/09
摘要:
An error signal generating circuit which generates an error signal based on a read signal from an optical recording medium, which circuit comprises an error detection means responsive to the read signal to output the error signal; a disorder detection means responsive to the read signal to detect disorder; a signal hold means holding an output from the error detection means just before the disorderly state has occurred, during a period when the output from the disorder detection means represents the disorderly state; and a switching means responsive to the output from the error detection means and the output from the signal hold means to selectively supply the output from the hold means when the output from the disorder detection means represents the disorderly state and selectively supply the output from the error detection means when the output from the disorder detection means does not represent the disorderly state.
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