发明授权
- 专利标题： Magneto-optic disk apparatus having means for eliminating fluctuation component in reproduction magneto-optic signal
- 专利标题（中）： 具有用于消除再现磁光信号中的波动分量的装置的磁光盘装置
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申请号： US634360申请日： 1996-04-18
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公开(公告)号： US5668786A公开(公告)日： 1997-09-16
- 发明人: Tohru Sasaki , Takeshi Shimano , Yoshiro Konishi , Toshimasa Kamisada , Motoyuki Suzuki , Naoki Mori , Masayuki Fukui
- 申请人： Tohru Sasaki , Takeshi Shimano , Yoshiro Konishi , Toshimasa Kamisada , Motoyuki Suzuki , Naoki Mori , Masayuki Fukui
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-093703 19950419; JPX7-212275 19950822
- 主分类号： G11B7/13
- IPC分类号： G11B7/13 ; G11B7/135 ; G11B11/105 ; G11B11/00
摘要：
A magneto-optic disk apparatus for use with a magneto-optic disk in which a recording surface made of a magneto-optic information recording medium is formed on a transparent substrate having a birefringence. The magneto-optic disk apparatus includes an optical head for performing a recording and a reproduction by a laser beam for the recording surface, and a unit for eliminating a fluctuation component occurring in a reproduction magneto-optic signal, the fluctuation component eliminating unit being arranged in a convergent light up to an analyzer in a detection optical system.
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