发明申请
- 专利标题： Optical disc apparatus and optical disc reproducing method
- 专利标题（中）： 光盘装置和光盘再现方法
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申请号： US11493822申请日： 2006-07-27
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公开(公告)号： US20070121446A1公开(公告)日： 2007-05-31
- 发明人: Manabu Shiozawa , Kazutoshi Shigeta
- 申请人： Manabu Shiozawa , Kazutoshi Shigeta
- 优先权： JP2005-343045 20051129
- 主分类号： G11B19/00
- IPC分类号： G11B19/00
摘要：
The object of this invention is to provide an optical disc apparatus and an optical disc reproducing method that can realize an excellent reproducing operation by suppressing noise in the optical disc apparatus using an optical attenuator. In order to solve this object, a control voltage of the optical attenuator is changed according to reproduction power when reproducing the optical disc and an ambient temperature of the optical attenuator. In addition, the amplitude of a high frequency current for driving a laser diode is changed according to an attenuation factor of the optical attenuator.
公开/授权文献
- US07869333B2 Optical disc apparatus and optical disc reproducing method 公开/授权日：2011-01-11
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