发明授权
- 专利标题： Holographic memory reproduction method and apparatus
- 专利标题（中）： 全息记忆再生方法及装置
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申请号： US10580819申请日： 2004-11-10
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公开(公告)号： US07589876B2公开(公告)日： 2009-09-15
- 发明人: Takuya Tsukagoshi , Jiro Yoshinari , Hideaki Miura , Tetsuro Mizushima
- 申请人： Takuya Tsukagoshi , Jiro Yoshinari , Hideaki Miura , Tetsuro Mizushima
- 申请人地址： JP Tokyo
- 专利权人： TDK Corporation
- 当前专利权人： TDK Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff & Berridge, PLC
- 优先权： JP2003-400456 20031128
- 国际申请： PCT/JP2004/016646 WO 20041110
- 国际公布： WO2005/052929 WO 20050609
- 主分类号： G03H1/28
- IPC分类号： G03H1/28 ; G03H1/22 ; G02B5/32 ; G11B7/00
摘要：
A method and apparatus for performing reproduction position servo-control without reducing the recording capacity of a holographic recording medium. Upon the reproduction of a holographic recording medium 18, part of a reproduction beam serving as a servo beam is projected onto a recording layer 18A of the holographic recording medium 18 from the side opposite to the side of the reproduction beam (a reference beam) along the same optical axis as that of the reproduction beam, and the diffraction beam thereof is detected by a photodetector 26C through a polarizing beam splitter 26B.
公开/授权文献
- US20070109943A1 Holographic memory reproduction method and apparatus 公开/授权日：2007-05-17
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