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    Hologram recording device and hologram reproduction device
    1.
    发明授权
    Hologram recording device and hologram reproduction device 失效
    全息记录装置和全息图再现装置

    公开(公告)号：US07206105B2

    公开(公告)日：2007-04-17

    申请号：US10514826

    申请日：2003-05-19

    申请人： Kazuo Kuroda ,  Satoshi Sugiura ,  Shuuichi Yanagisawa ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Kazuo Kuroda ,  Satoshi Sugiura ,  Shuuichi Yanagisawa ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G02B1/02

    CPC分类号： G11B7/128 ,  G03H1/0841 ,  G03H1/16 ,  G03H1/26 ,  G03H2210/22 ,  G03H2225/22 ,  G11B7/0065 ,  G11C13/042

    摘要： A hologram record apparatus (100) includes a spatial light modulator (15) and a control device (18). The spatial light modulator (15) is arranged on an optical path of signal light (L1) and divided into a plurality of cell blocks (151) arranged in a matrix. Each of the cell blocks (151) is further divided into a plurality of cells (152) arranged in a matrix. The spatial light modulator (15) can perform modulation on the cell basis. The control device (18) controls the spatial light modulator so as to modulate the signal light according to a plurality of record information sets to be recorded on a hologram record medium (200). Pluralities of modulation units (153) existing in the same cell block are not made into identical patterns. Since a plurality of cell blocks having a large pitch as compared to the pixel pitch are simultaneously or successively turned on/off, it is possible to reduce the distance between the zeroth-order light and the higher-order light.

    摘要翻译： 全息记录装置（100）包括空间光调制器（15）和控制装置（18）。 空间光调制器（15）被布置在信号光（L 1）的光路上，并被分成以矩阵排列的多个单元块（151）。 每个单元块（151）进一步被划分成矩阵排列的多个单元（152）。 空间光调制器（15）可以基于单元进行调制。 控制装置（18）控制空间光调制器，以便根据要记录在全息记录介质（200）上的多个记录信息集来调制信号光。 存在于相同单元块中的多个调制单元（153）不被制成相同的模式。 由于与像素间距相比具有大间距的多个单元块同时或连续地导通/截止，所以可以减少零级光和高阶光之间的距离。

    Hologram system
    2.
    发明申请
    Hologram system 审中-公开
    全息图系统

    公开(公告)号：US20060164705A1

    公开(公告)日：2006-07-27

    申请号：US10522679

    申请日：2003-05-16

    申请人： Yoshihisa Itoh ,  Satoru Tanaka ,  Akihiro Tachibana ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    发明人： Yoshihisa Itoh ,  Satoru Tanaka ,  Akihiro Tachibana ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    IPC分类号： G02B5/32

    CPC分类号： G06K7/10663 ,  G11B7/0065

    摘要： A compatible hologram system has a supporting part for loadably supporting a recording medium made of a photosensitive material, a signal generating part for allowing a coherent beam modulated in response to predetermined data to enter the recording medium and providing a three-dimensional light interference pattern therewithin to produce a diffraction grating, and a data processing part for detecting reproduced data by diffracted light from the diffraction grating and demodulating the data to the predetermined data. The recording medium has a reference data area in which a reference diffraction grating corresponding to a three-dimensional light interference pattern of a coherent light beam modulated in response to reference data has been stored in advance, a sector data area in which sector data is recorded, and a user data area in which user data is recorded. The hologram system corrects the reproduced data in response to the reference data reproduced from the reference diffraction grating stored in the reference data area, the sector data reproduced from the sector area, and reference data provided within a reference memory of the data processing part, and demodulates the data to the predetermined data.

    摘要翻译： 兼容的全息图系统具有用于负载地支撑由感光材料制成的记录介质的支撑部件，用于允许响应于预定数据调制的相干光束进入记录介质并在其中提供三维光干涉图案的信号产生部件 以产生衍射光栅，以及数据处理部分，用于通过来自衍射光栅的衍射光检测再现数据，并将数据解调为预定数据。 记录介质具有参考数据区域，其中预先存储了对应于响应于参考数据调制的相干光束的三维光干涉图案的参考衍射光栅，其中记录了扇区数据的扇区数据区域 以及记录用户数据的用户数据区域。 全息图系统响应于从存储在参考数据区域中的参考衍射光栅再现的参考数据，从扇区区域再现的扇区数据和提供在数据处理部分的参考存储器内的参考数据，校正再现数据，以及 将数据解调为预定数据。

    Hologram recording/reproducing system
    4.
    发明授权
    Hologram recording/reproducing system 失效
    全息记录/再现系统

    公开(公告)号：US07079469B2

    公开(公告)日：2006-07-18

    申请号：US10516692

    申请日：2003-05-16

    申请人： Yoshihisa Itoh ,  Satoru Tanaka ,  Akihiro Tachibana ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    发明人： Yoshihisa Itoh ,  Satoru Tanaka ,  Akihiro Tachibana ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    IPC分类号： G11B7/00

    CPC分类号： G03H1/265 ,  G03H1/16 ,  G03H1/26 ,  G03H2260/54 ,  G11B7/0065

    摘要： A hologram recording and reproducing system having compatibility has: a supporting unit for freely attachably supporting a recording medium including a photosensitive material; a signal light-generating unit for projecting a coherent light beam modulated according to a predetermined data into a recording medium and generating a diffraction grating by providing a three-dimensional light interference pattern in the recording medium; a detector unit for detecting and photoelectrically converting a diffracted light from the diffraction grating; and a demodulating unit for demodulating a predetermined data from an output from the detector unit. The detector unit has an intermediate data-generating unit for generating an intermediate data, and the demodulating unit has a conversion table in which the intermediate data and the predetermined data are uniquely associated, and demodulates the predetermined data by performing a computation based on a correlation in the conversion table.

    摘要翻译： 具有兼容性的全息图记录和再现系统具有：用于可自由连接地支撑包括感光材料的记录介质的支撑单元; 信号光产生单元，用于将根据预定数据调制的相干光束投射到记录介质中，并通过在记录介质中提供三维光干涉图案来产生衍射光栅; 用于检测和光电转换衍射光栅的衍射光的检测器单元; 以及解调单元，用于从检测器单元的输出解调预定数据。 检测器单元具有用于产生中间数据的中间数据生成单元，并且解调单元具有其中中间数据和预定数据唯一相关联的转换表，并且通过基于相关性执行计算来解调预定数据 在转换表中。

    Hologram recording device and hologram reproduction device
    8.
    发明申请
    Hologram recording device and hologram reproduction device 失效
    全息记录装置和全息图再现装置

    公开(公告)号：US20050185230A1

    公开(公告)日：2005-08-25

    申请号：US10514826

    申请日：2003-05-19

    申请人： Kazuo Kuroda ,  Satoshi Sugiura ,  Shuuichi Yanagisawa ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Kazuo Kuroda ,  Satoshi Sugiura ,  Shuuichi Yanagisawa ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G02F1/01 ,  G02F1/061 ,  G02F1/13 ,  G03H1/04 ,  G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G11B7/125 ,  G11C13/04 ,  G03H1/02

    CPC分类号： G11B7/128 ,  G03H1/0841 ,  G03H1/16 ,  G03H1/26 ,  G03H2210/22 ,  G03H2225/22 ,  G11B7/0065 ,  G11C13/042

    摘要： A hologram record apparatus (100) includes a spatial light modulator (15) and a control device (18). The spatial light modulator (15) is arranged on an optical path of signal light (L1) and divided into a plurality of cell blocks (151) arranged in a matrix. Each of the cell blocks (151) is further divided into a plurality of cells (152) arranged in a matrix. The spatial light modulator (15) can perform modulation on the cell basis. The control device (18) controls the spatial light modulator so as to modulate the signal light according to a plurality of record information sets to be recorded on a hologram record medium (200). Pluralities of modulation units (153) existing in the same cell block are not made into identical patterns. Since a plurality of cell blocks having a large pitch as compared to the pixel pitch are simultaneously or successively turned on/off, it is possible to reduce the distance between the zeroth-order light and the higher-order light.

    摘要翻译： 全息记录装置（100）包括空间光调制器（15）和控制装置（18）。 空间光调制器（15）被布置在信号光（L 1）的光路上，并被分成以矩阵排列的多个单元块（151）。 每个单元块（151）进一步被划分成矩阵排列的多个单元（152）。 空间光调制器（15）可以基于单元进行调制。 控制装置（18）控制空间光调制器，以便根据要记录在全息记录介质（200）上的多个记录信息集来调制信号光。 存在于相同单元块中的多个调制单元（153）不被制成相同的模式。 由于与像素间距相比具有大间距的多个单元块同时或连续地导通/截止，所以可以减少零级光和高阶光之间的距离。

    Holographic recording/reproducing apparatus having relative speed controller and method
    9.
    发明授权
    Holographic recording/reproducing apparatus having relative speed controller and method 失效
    具有相对速度控制器和方法的全息记录/再现装置

    公开(公告)号：US07688699B2

    公开(公告)日：2010-03-30

    申请号：US11896402

    申请日：2007-08-31

    申请人： Akihiro Tachibana ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    发明人： Akihiro Tachibana ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0938 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/1362

    摘要： A holographic recording and reproducing apparatus comprises: a pickup for moving an objective lens that focuses a coherent light beam along a recording track on a holographic recording medium and for detecting reflected light from the recording track to perform focus- and tracking-servo control; a relative velocity determination unit for determining a relative velocity of a converging position of the objective lens with respect to the holographic recording medium; a driving unit for changing a relative position of the objective lens with respect to an optical path of the coherent light beam so as to make the relative velocity fall within a predetermined range at least during a predetermined period; and a control unit for performing recording or reproduction for a recording layer during the predetermined period. The holographic recording medium includes a plurality of markers used for positioning an optical interference pattern of the coherent light beam.

    摘要翻译： 一种全息记录和再现装置，包括：拾取器，用于移动物镜，沿着记录轨道将相干光束聚焦在全息记录介质上，并用于检测来自记录轨道的反射光，以执行对焦和跟踪伺服控制; 相对速度确定单元，用于确定物镜相对于全息记录介质的会聚位置的相对速度; 驱动单元，用于相对于所述相干光束的光路改变所述物镜的相对位置，以使所述相对速度至少在预定时段期间落在预定范围内; 以及控制单元，用于在预定时段期间执行记录层的记录或再现。 全息记录介质包括用于定位相干光束的光学干涉图案的多个标记。

    Holographic recording/reproducing apparatus having relative speed controller and method
    10.
    发明申请
    Holographic recording/reproducing apparatus having relative speed controller and method 失效
    具有相对速度控制器和方法的全息记录/再现装置

    公开(公告)号：US20080002553A1

    公开(公告)日：2008-01-03

    申请号：US11896402

    申请日：2007-08-31

    申请人： Akihiro Tachibana ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    发明人： Akihiro Tachibana ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0938 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/1362

    摘要： A holographic recording and reproducing apparatus comprises: a pickup for moving an objective lens that focuses a coherent light beam along a recording track on a holographic recording medium and for detecting reflected light from the recording track to perform focus- and tracking-servo control; a relative velocity determination unit for determining a relative velocity of a converging position of the objective lens with respect to the holographic recording medium; a driving unit for changing a relative position of the objective lens with respect to an optical path of the coherent light beam so as to make the relative velocity fall within a predetermined range at least during a predetermined period; and a control unit for performing recording or reproduction for a recording layer during the predetermined period. The holographic recording medium includes a plurality of markers used for positioning an optical interference pattern of the coherent light beam.

    摘要翻译： 一种全息记录和再现装置，包括：拾取器，用于移动物镜，沿着记录轨道将相干光束聚焦在全息记录介质上，并用于检测来自记录轨道的反射光，以执行对焦和跟踪伺服控制; 相对速度确定单元，用于确定物镜相对于全息记录介质的会聚位置的相对速度; 驱动单元，用于相对于所述相干光束的光路改变所述物镜的相对位置，以使所述相对速度至少在预定时段期间落在预定范围内; 以及控制单元，用于在预定时段期间执行记录层的记录或再现。 全息记录介质包括用于定位相干光束的光学干涉图案的多个标记。