发明授权
- 专利标题： Rotation control device using reproduced synchronizing signal
- 专利标题（中）： 使用再现同步信号的控制装置
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申请号： US369011申请日： 1989-06-15
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公开(公告)号： US5067033A公开(公告)日： 1991-11-19
- 发明人: Tetsuya Wakui
- 申请人： Tetsuya Wakui
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-154515 19880621
- 主分类号： G11B15/473
- IPC分类号： G11B15/473 ; H02P29/00
摘要：
A rotation control device comprises a rotary body arranged to move a head and a recording medium relative to each other in performing recording or reproduction on or from the recording medium; means for performing speed servo-control by detecting any speed deviation of the rotary body; means for performing phase servo-control by detecting any phase deviation of the rotary body; and means for performing the speed servo-control over the rotary body by detecting a phase-locked state of the rotary body and by synchronizing the rotary body with a synchronizing signal reproduced from the recording medium.
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