发明授权
US06552987B1 Optical disk apparatus wherein recording clock signal is stopped being supplied to semiconductor laser drive circuit on optical pickup during reproduction operation
失效
记录时钟信号停止的光盘装置在再现操作期间被提供给光学拾取器上的半导体激光器驱动电路
- 专利标题： Optical disk apparatus wherein recording clock signal is stopped being supplied to semiconductor laser drive circuit on optical pickup during reproduction operation
- 专利标题（中）： 记录时钟信号停止的光盘装置在再现操作期间被提供给光学拾取器上的半导体激光器驱动电路
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申请号： US09463007申请日： 2000-01-19
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公开(公告)号： US06552987B1公开(公告)日： 2003-04-22
- 发明人: Akihiro Asada , Toshimitsu Kaku , Takashi Hoshino , Masaaki Kurebayashi
- 申请人： Akihiro Asada , Toshimitsu Kaku , Takashi Hoshino , Masaaki Kurebayashi
- 主分类号： G11B70045
- IPC分类号： G11B70045
摘要：
According to the present invention, in an optical disk apparatus constructed to supply signals for controlling a semiconductor laser drive circuit provided to an optical pickup from a signal processing circuit through a flexible cable, the semiconductor laser drive circuit is so constructed as to generate a drive current signal for the semiconductor laser on the basis of a binary signal and a clock signal which are supplied from the signal processing circuit through the flexible cable and the signal processing circuit is so constructed as to supply the clock signal during recording of data and stop the supply of the block signal during reproduction of data.