公开(公告)号：US20130215730A1

公开(公告)日：2013-08-22

申请号：US13880203

申请日：2011-10-19

申请人： Atsushi Okamoto ,  Keisuke Kunori ,  Masanori Takabayashi

发明人： Atsushi Okamoto ,  Keisuke Kunori ,  Masanori Takabayashi

IPC分类号： G11B7/0065

CPC分类号： G11B7/0065 ,  G03H1/2249 ,  G03H2001/0441 ,  G03H2210/562 ,  G11B7/128 ,  G11B7/1356 ,  G11B7/1365 ,  G11B7/1395

摘要： The present invention relates to a reproduction device of a holographic memory capable of precisely reproducing multi-value phase information without being influenced by noise. This holographic memory reproduction device comprises: a hologram diffraction ray generation unit which irradiates a first reference ray to the holographic memory and generates a diffraction ray of the first hologram; a hologram generation unit which changes the phase of a second reference ray which may interfere with the diffraction ray of the first hologram and generates a second hologram from the diffraction ray of the first hologram and the second reference ray to which the phase has been changed; a detection unit which detects the intensity distribution of the second hologram; and a processing unit which demodulates the phase modulation signal or the space quadrature amplitude modulation signal on the basis of the intensity distribution.

摘要翻译： 本发明涉及一种能够精确地再现多值相位信息而不受噪声影响的全息存储器的再现装置。 该全息存储再现装置包括：全息衍射光线产生单元，其将第一参考光线照射到全息存储器并产生第一全息图的衍射光线; 全息图生成单元，其改变可能干扰第一全息图的衍射光的第二参考光线的相位，并且从相位已经改变的第一全息图的衍射光线和第二参考光线产生第二全息图; 检测单元，其检测第二全息图的强度分布; 以及处理单元，其基于强度分布来解调相位调制信号或空间正交幅度调制信号。

公开(公告)号：US08817585B2

公开(公告)日：2014-08-26

申请号：US13880203

申请日：2011-10-19

申请人： Atsushi Okamoto ,  Keisuke Kunori ,  Masanori Takabayashi

发明人： Atsushi Okamoto ,  Keisuke Kunori ,  Masanori Takabayashi

IPC分类号： G11B7/0065 ,  G03H1/22 ,  G03H1/04

CPC分类号： G11B7/0065 ,  G03H1/2249 ,  G03H2001/0441 ,  G03H2210/562 ,  G11B7/128 ,  G11B7/1356 ,  G11B7/1365 ,  G11B7/1395

摘要： The present invention relates to a reproduction device of a holographic memory capable of precisely reproducing multi-value phase information without being influenced by noise. This holographic memory reproduction device comprises: a hologram diffraction ray generation unit which irradiates a first reference ray to the holographic memory and generates a diffraction ray of the first hologram; a hologram generation unit which changes the phase of a second reference ray which may interfere with the diffraction ray of the first hologram and generates a second hologram from the diffraction ray of the first hologram and the second reference ray to which the phase has been changed; a detection unit which detects the intensity distribution of the second hologram; and a processing unit which demodulates the phase modulation signal or the space quadrature amplitude modulation signal on the basis of the intensity distribution.

摘要翻译： 本发明涉及一种能够精确地再现多值相位信息而不受噪声影响的全息存储器的再现装置。 该全息存储再现装置包括：全息衍射光线产生单元，其将第一参考光线照射到全息存储器并产生第一全息图的衍射光线; 全息图生成单元，其改变可能干扰第一全息图的衍射光的第二参考光线的相位，并且从相位已经改变的第一全息图的衍射光线和第二参考光线产生第二全息图; 检测单元，其检测第二全息图的强度分布; 以及处理单元，其基于强度分布来解调相位调制信号或空间正交幅度调制信号。