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    REPRODUCING DEVICE AND REPRODUCING METHOD
    3.
    发明申请
    REPRODUCING DEVICE AND REPRODUCING METHOD 审中-公开
    重现设备和再现方法

    公开(公告)号：US20100225985A1

    公开(公告)日：2010-09-09

    申请号：US12697639

    申请日：2010-02-01

    申请人： Atsushi Fukumoto ,  Kenji Tanaka ,  Masaaki Hara ,  Akio Yamakawa

    发明人： Atsushi Fukumoto ,  Kenji Tanaka ,  Masaaki Hara ,  Akio Yamakawa

    IPC分类号： G03H1/22

    CPC分类号： G11B7/083 ,  G03H1/16 ,  G03H2225/32 ,  G03H2225/36 ,  G03H2225/60 ,  G11B7/0065 ,  G11B20/10009 ,  G11B2220/2504

    摘要： A reproducing device including a light source that emits light for reproducing recorded information to a hologram recording medium subjected to recording of information by interference fringes of signal light and reference light, a light irradiating unit that generates the reference light for obtaining a reproduced image according to the recorded information and DC light having uniform intensity and phase, and irradiates the hologram recording medium with both the reference light and the DC light and with only the DC light, a light receiving unit that performs light-reception for the DC light and the reproduced image, and performs light-reception for the DC light, and a difference calculating unit that calculates a difference between an image signal obtained based on a light-reception result of the reproduced image and the DC light, and an image signal obtained based on a light-reception result of the DC light.

    摘要翻译： 一种再生装置，其特征在于，包括：光源，其向通过信号光和基准光的干涉条纹记录信息的全息图记录媒体发出记录信息的光;照射单元，生成用于获得根据 所记录的信息和DC光具有均匀的强度和相位，并且仅用DC光照射具有参考光和DC光的全息图记录介质，对DC光进行光接收的光接收单元 图像，并且对DC光进行光接收;以及差分计算单元，其计算基于再现图像的光接收结果获得的图像信号与DC光之间的差异，以及基于 直流光的光接收结果。

    Beam applying method, optical recording medium, and recording and reproducing apparatus
    4.
    发明授权
    Beam applying method, optical recording medium, and recording and reproducing apparatus 失效
    光束施加方法，光学记录介质和记录和再现装置

    公开(公告)号：US08077563B2

    公开(公告)日：2011-12-13

    申请号：US12107588

    申请日：2008-04-22

    申请人： Kenji Tanaka ,  Atsushi Fukumoto

    发明人： Kenji Tanaka ,  Atsushi Fukumoto

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1369 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/1275 ,  G11B7/1365 ,  G11B7/24038 ,  G11B7/24044

    摘要： In a beam applying method, recording and reproducing operations are performed on an optical recording medium, in which a signal is recorded and reproduced by applying a beam thereto and which has a recording layer on which the signal is recorded, a quarter-wavelength plate formed below the recording layer, a polarizing plate formed further below the quarter-wavelength plate, and a reflecting film formed below the quarter-wavelength plate. The beam applying method includes the steps of; emitting a beam to be applied to the optical recording medium; and driving a quarter-wavelength plate inserted into an optical system serving to guide the emitted beam to the optical recording medium so that the optical axis direction thereof has a predetermined angle difference at the time of performing a recording operation and reproduction.

    摘要翻译： 在光束施加方法中，在光记录介质上执行记录和再现操作，其中通过向其施加光束来记录和再现信号，并且其上记录有信号的记录层，形成四分之一波长的板 在记录层下方，形成在四分之一波长板之下的偏振片，以及形成在四分之一波长板下方的反射膜。 光束施加方法包括以下步骤： 发射要施加到光学记录介质的光束; 并且驱动插入到用于将发射的光束引导到光学记录介质的光学系统中的四分之一波长的板，使得其在执行记录操作和再现时具有预定的角度差。

    BEAM APPLYING METHOD, BEAM APPLYING APPARATUS, AND OPTICAL RECORDING MEDIUM
    5.
    发明申请
    BEAM APPLYING METHOD, BEAM APPLYING APPARATUS, AND OPTICAL RECORDING MEDIUM 失效
    光束应用方法，光束应用设备和光学记录介质

    公开(公告)号：US20090323496A1

    公开(公告)日：2009-12-31

    申请号：US12107556

    申请日：2008-04-22

    申请人： Kenji Tanaka ,  Atsushi Fukumoto

    发明人： Kenji Tanaka ,  Atsushi Fukumoto

    IPC分类号： G11B7/00

    CPC分类号： G03H1/02 ,  G03H1/0256 ,  G03H2222/31 ,  G03H2250/41 ,  G03H2250/42 ,  G11B7/0065 ,  G11B7/1365

    摘要： A beam applying method includes the steps of: rotationally driving an optical recording medium, in which a signal is recorded and reproduced by applying a beam thereto and which has a recording layer on which the signal is recorded, a polarization element formed below the recording layer, and a reflecting film formed below the polarization element; and applying a beam to the rotating optical recording medium through a half-wavelength plate that is rotationally driven with the rotation of the optical recording medium.

    摘要翻译： 光束施加方法包括以下步骤：旋转驱动光记录介质，其中通过向其施加光束来记录和再现信号，并且其上记录有信号的记录层，形成在记录层下方的偏振元件 以及形成在所述偏振元件下方的反射膜; 以及通过经过光记录介质的旋转旋转驱动的半波长板将光束施加到旋转光记录介质上。

    RECORDING AND REPRODUCING APPARATUS, RECORDING AND REPRODUCING METHOD, REPRODUCING APPARATUS, AND REPRODUCING METHOD
    6.
    发明申请
    RECORDING AND REPRODUCING APPARATUS, RECORDING AND REPRODUCING METHOD, REPRODUCING APPARATUS, AND REPRODUCING METHOD 失效
    记录和再现装置，记录和再现方法，再现装置和再现方法

    公开(公告)号：US20080310281A1

    公开(公告)日：2008-12-18

    申请号：US12107609

    申请日：2008-04-22

    申请人： Masaaki Hara ,  Kenji Tanaka ,  Atsushi Fukumoto ,  Kenjiro Watanabe

    发明人： Masaaki Hara ,  Kenji Tanaka ,  Atsushi Fukumoto ,  Kenjiro Watanabe

    IPC分类号： G11B7/00

    CPC分类号： G11B7/00772 ,  G11B7/1369

    摘要： A recording and reproducing apparatus includes a spatial-light-intensity modulating unit, a spatial-light-phase modulating unit, an optical system that transmits light and leads the light to a hologram recording medium, a converting unit that converts an input data sequence; an amplitude and phase controlling unit that controls, during recording, the spatial-light-intensity modulating unit and the spatial-light-phase modulating unit to generate a signal light and a reference light, and controls, during reproduction, light intensity of each of pixels in a reference light area and a signal light area and controls a phase of each of the pixels, an image-signal acquiring unit that receives the reproduced image and the DC light and obtains two kinds of image signals, a difference calculating unit that calculates a difference between the two kinds of image signals, and a decoding unit that decodes data formed by a combination of the two kinds of values.

    摘要翻译： 记录和再现装置包括空间光强度调制单元，空间光相位调制单元，透光并将光引导到全息图记录介质的光学系统，转换单元，其转换输入数据序列; 幅度和相位控制单元，其在记录期间控制空间光强度调制单元和空间光相位调制单元以产生信号光和参考光，并且在再现期间控制每个的光强度 参考光区域中的像素和信号光区域，并且控制每个像素的相位;图像信号获取单元，接收再现图像和DC光，并获得两种图像信号;差分计算单元，其计算 两种图像信号之间的差异，以及对通过两种值的组合形成的数据进行解码的解码单元。

    Recording and reproducing device, recording and reproducing method, recording device, recording method, reproducing device and reproducing method
    7.
    发明授权
    Recording and reproducing device, recording and reproducing method, recording device, recording method, reproducing device and reproducing method 失效
    记录和再现装置，记录和再现方法，记录装置，记录方法，再现装置和再现方法

    公开(公告)号：US08305668B2

    公开(公告)日：2012-11-06

    申请号：US12439839

    申请日：2008-05-01

    申请人： Kenji Tanaka ,  Atsushi Fukumoto

    发明人： Kenji Tanaka ,  Atsushi Fukumoto

    IPC分类号： G02B5/32

    CPC分类号： G11B7/0065 ,  G03H2001/0441 ,  G03H2210/22 ,  G03H2210/562 ,  G03H2225/32 ,  G11B7/128

    摘要： A technique for recording data onto a hologram recording medium using spatial light phase modulation corresponding to the recording data, and a technique for reproducing recorded data by properly reading information on phases recorded on a hologram recording medium. A signal beam having a phase modulation pattern corresponding to recording data and a reference beam having a specific phase modulation pattern are applied to the recording medium. Thus, recording data can be recorded onto the hologram recording medium using phase information. In addition, at the time of reproduction, a reference beam and a direct current (DC) beam, whose phase difference with respect to the reference beam is π/2, are applied to the hologram recording medium. By reading the reproduction beam to which the DC beam is added, recorded information on phases can be correctly read, and recorded data can be reproduced in accordance with the phase information.

    摘要翻译： 使用与记录数据相对应的空间光相位调制将数据记录到全息图记录介质上的技术，以及通过适当地读取记录在全息图记录介质上的相位的信息来再现记录数据的技术。 将具有对应于记录数据的相位调制图案和具有特定相位调制图案的参考光束的信号光束施加到记录介质。 因此，可以使用相位信息将记录数据记录在全息图记录介质上。 此外，在再现时，相对于参考光束的相位差为＆pgr / 2的参考光束和直流（DC）光束被施加到全息图记录介质。 通过读取添加了DC光束的再现光束，可以正确地读取关于相位的记录信息，并且可以根据相位信息再现记录数据。

    RECORDING AND REPRODUCING DEVICE, RECORDING AND REPRODUCING METHOD, RECORDING DEVICE, RECORDING METHOD, REPRODUCING DEVICE AND REPRODUCING METHOD
    9.
    发明申请
    RECORDING AND REPRODUCING DEVICE, RECORDING AND REPRODUCING METHOD, RECORDING DEVICE, RECORDING METHOD, REPRODUCING DEVICE AND REPRODUCING METHOD 失效
    记录和再现装置，记录和再现方法，记录装置，记录方法，再现装置和再现方法

    公开(公告)号：US20090268268A1

    公开(公告)日：2009-10-29

    申请号：US12439839

    申请日：2008-05-01

    申请人： Kenji Tanaka ,  Atsushi Fukumoto

    发明人： Kenji Tanaka ,  Atsushi Fukumoto

    IPC分类号： G03H1/14

    CPC分类号： G11B7/0065 ,  G03H2001/0441 ,  G03H2210/22 ,  G03H2210/562 ,  G03H2225/32 ,  G11B7/128

    摘要： A recording technique for performing data recording onto a hologram recording medium in accordance with information on phases by performing spatial light phase modulation as spatial light modulation corresponding to recording data, and a reproducing technique for reproducing recorded data by properly reading information on phases recorded as described above are suggested. A signal beam having a phase modulation pattern provided thereto corresponding to recording data and a reference beam having a specific phase modulation pattern provided thereto are applied to the hologram recording medium. Thus, recording data can be recorded onto the hologram recording medium in accordance with information on phases. In addition, at the time of reproduction, a reference beam and a DC beam having the entire phase whose phase difference with respect to a reference phase within the reference beam is π/2 are applied to the hologram recording medium. By providing a phase difference based on π/2 as described above, the phase of a reproduction beam obtained from the hologram recording medium in accordance with application of the reference beam and the phase of the DC beam can be set to be the same. Thus, the DC beam can be added as a component of an amplitude of “1” to the reproduction beam. By reading the reproduction beam to which the DC beam is added as described above, recorded information on phases can be correctly read, and recorded data can be reproduced in accordance with the phase information.

    摘要翻译： 根据关于相位的信息，通过执行空间光相位调制作为对应于记录数据的空间光调制来执行数据记录到全息图记录介质上的记录技术，以及通过适当地读取关于如上所述记录的相位的信息来再现记录数据的再现技术 建议以上。 具有与记录数据相对应的相位调制图案的信号光束和向其提供特定相位调制图案的参考光束被施加到全息图记录介质。 因此，可以根据相位信息将记录数据记录在全息图记录介质上。 此外，在再现时，将具有相对于参考光束内的基准相位的相位差为π/ 2的整个相位的参考光束和DC光束施加到全息图记录介质。 通过如上所述通过提供基于pi / 2的相位差，可以将根据参考光束的应用和DC光束的相位从全息图记录介质获得的再现光束的相位设置为相同。 因此，DC光束可以作为振幅“1”的分量被添加到再现光束。 如上所述通过读取添加了DC光束的再现光束，可以正确地读取关于相位的记录信息，并且可以根据相位信息再现记录数据。

    RECORDING APPARATUS AND PHASE MODULATION DEVICE
    10.
    发明申请
    RECORDING APPARATUS AND PHASE MODULATION DEVICE 失效
    记录装置和相位调制装置

    公开(公告)号：US20080080030A1

    公开(公告)日：2008-04-03

    申请号：US11862373

    申请日：2007-09-27

    申请人： Atsushi Fukumoto ,  Mikio Sugiki ,  Kenji Tanaka ,  Masaaki Hara ,  Kazuyuki Hirooka

    发明人： Atsushi Fukumoto ,  Mikio Sugiki ,  Kenji Tanaka ,  Masaaki Hara ,  Kazuyuki Hirooka

    IPC分类号： G03H1/00

    CPC分类号： G11B7/0065 ,  G03H2223/13 ,  G03H2225/31 ,  G11B7/1367

    摘要： A recording apparatus performing at least recording with respect to a hologram recording medium is disclosed. The recording medium includes: a light emitting means for emitting light to be radiated with respect to the hologram recording medium set at a prescribed position; a special light modulation means configured to be able to generate reference light and signal light to be radiated to the hologram recording medium by performing light intensity modulation to incident light in the unit of pixels; a phase modulation means for performing phase modulation to radiated light from the special light modulation means; and an optical system configured to guide light emitted from the light emitting means with respect to the hologram recording medium through the special modulation means and the phase modulation means.

    摘要翻译： 公开了至少对全息图记录介质进行记录的记录装置。 记录介质包括：发光装置，用于发射相对于设置在规定位置的全息图记录介质辐射的光; 一种特殊的光调制装置，被配置为能够通过对以像素为单位的入射光进行光强度调制而产生将被照射到全息图记录介质的参考光和信号光; 相位调制装置，用于对来自特殊光调制装置的辐射光进行相位调制; 以及光学系统，被配置为通过专用调制装置和相位调制装置引导从发光装置相对于全息图记录介质发射的光。