发明申请
US20050276178A1 Method of deriving suitable-and-hold timing, and optical disk drive using the same method
审中-公开
导出适合和保持时序的方法,以及使用相同方法的光盘驱动器
- 专利标题: Method of deriving suitable-and-hold timing, and optical disk drive using the same method
- 专利标题(中): 导出适合和保持时序的方法,以及使用相同方法的光盘驱动器
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申请号: US10988837申请日: 2004-11-16
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公开(公告)号: US20050276178A1公开(公告)日: 2005-12-15
- 发明人: Koichiro Nishimura , Kazuhiro Ikeda , Toshimitsu Kaku
- 申请人: Koichiro Nishimura , Kazuhiro Ikeda , Toshimitsu Kaku
- 优先权: JP2004-170656 20040609
- 主分类号: G11B7/0045
- IPC分类号: G11B7/0045 ; G11B7/00 ; G11B7/005 ; G11B7/09 ; G11B7/125
摘要:
In the sample-and-hold circuit for laser power detection signal and servo signal, the sample-and-hold operation timing is controlled to set by monitoring the output from the sample-and-hold circuit. In the invention of this application, the sample-and-hold timing is changed to be larger or smaller than the estimated timing, and reference is made to the result of the monitoring, thus determining the optimum timing. The sample-and-hold timing is controlled to fix to this optimum value.
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