发明授权
US4862443A Sync signal detection apparatus for accurately synchronizing reproduced
data
失效
用于准确地同步再生数据的同步信号检测装置
- 专利标题： Sync signal detection apparatus for accurately synchronizing reproduced data
- 专利标题（中）： 用于准确地同步再生数据的同步信号检测装置
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申请号： US19707申请日： 1987-02-27
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公开(公告)号： US4862443A公开(公告)日： 1989-08-29
- 发明人: Kentaroh Tsuji , Shigemi Maeda , Takeshi Yamaguchi , Toshihisa Deguchi , Noriaki Sakamoto , Shigeo Terashima
- 申请人： Kentaroh Tsuji , Shigemi Maeda , Takeshi Yamaguchi , Toshihisa Deguchi , Noriaki Sakamoto , Shigeo Terashima
- 申请人地址： JPX Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX61-45759 19860228
- 主分类号： G11B20/10
- IPC分类号： G11B20/10 ; G11B20/14 ; G11B27/10 ; H04L7/08 ; H04N5/935
摘要：
A sync signal detection apparatus is provided wherein a sync signal represents the top of recorded data. The sync signal includes a plurality of marks each having a different pattern from the pattern of any other mark. The apparatus is equipped with a circuit for sequentially detecting the patterns of the individual marks in a reproduction mode. Also, a circuit is provided generating a sync pulse at the top of the data in accordance with the address pattern of the mark after a predetermined number of marks are detected. The apparatus ensures accurate reproduction of the recorded data with a small number of bits and an increase in data reliability.
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