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    Hologram reconstruction method and device
    42.
    发明授权
    Hologram reconstruction method and device 有权
    全息重建方法及装置

    公开(公告)号：US07262892B1

    公开(公告)日：2007-08-28

    申请号：US11633058

    申请日：2006-12-04

    申请人： Shin Yasuda ,  Jiro Minabe ,  Katsunori Kawano ,  Yasuhiro Ogasawara ,  Koichi Haga ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Makoto Furuki

    发明人： Shin Yasuda ,  Jiro Minabe ,  Katsunori Kawano ,  Yasuhiro Ogasawara ,  Koichi Haga ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Makoto Furuki

    IPC分类号： G03H1/16

    CPC分类号： G11B7/0065 ,  G03H1/16 ,  G03H2223/12

    摘要： There is provided a hologram reconstruction method including: onto an optical recording medium in which a hologram is recorded by simultaneously irradiating the Fourier transformed signal beam representing a digital data with a bright and dark image and removing a DC component and the Fourier transformed reference beam thereon, irradiating a first reference beam for reading out that is the same as the reference beam to generate a first diffracted light generated by the recorded hologram, and synthesizing a DC component of a predetermined phase with the generated first diffracted light to generate a first synthesized light; detecting an inverse Fourier transformed image of the first synthesized light to obtain first image data; irradiating a second reference beam for reading out that differs from the reference beam onto the hologram recorded on the optical recording medium to generate a second diffracted light from the recorded hologram, and synthesizing a DC component of a predetermined phase with the generated second diffracted light to generate a second synthesized light; detecting an inverse Fourier transformed image of the second synthesized light to obtain second image data; subtracting one of the first image data and the second image data from the other at each pixel of the light and dark image; and decoding the digital data based on the value obtained by subtraction.

    摘要翻译： 提供了一种全息图重建方法，包括：在其上记录全息图的光记录介质上，同时照射表示具有明暗图像的数字数据的傅立叶变换信号光束，并且在其上去除直流分量和傅立叶变换参考光束 照射与参考光束相同的第一参考光束，以产生由所记录的全息图产生的第一衍射光，并将预定相位的直流分量与产生的第一衍射光合成，以产生第一合成光 ; 检测所述第一合成光的傅里叶逆变换图像以获得第一图像数据; 将不同于参考光束的第二参考光束照射到记录在光学记录介质上的全息图上，以从记录的全息图产生第二衍射光，并将预定相位的直流分量与产生的第二衍射光合成 产生第二合成光; 检测所述第二合成光的傅里叶逆变换图像以获得第二图像数据; 在光和暗图像的每个像素处从另一个减去第一图像数据和第二图像数据中的一个; 并基于通过减法获得的值对数字数据进行解码。

    Hologram recording method, hologram recording device, hologram playback method, and optical recording medium
    43.
    发明申请
    Hologram recording method, hologram recording device, hologram playback method, and optical recording medium 有权
    全息记录方法，全息记录装置，全息图再现方法和光记录介质

    公开(公告)号：US20070195388A1

    公开(公告)日：2007-08-23

    申请号：US11493611

    申请日：2006-07-27

    申请人： Makoto Furuki ,  Katsunori Kawano ,  Shin Yasuda ,  Jiro Minabe ,  Koichi Haga ,  Yasuhiro Ogasawara ,  Kazuhiro Hayashi ,  Hisae Yoshizawa

    发明人： Makoto Furuki ,  Katsunori Kawano ,  Shin Yasuda ,  Jiro Minabe ,  Koichi Haga ,  Yasuhiro Ogasawara ,  Kazuhiro Hayashi ,  Hisae Yoshizawa

    IPC分类号： G03H1/08

    CPC分类号： G11B7/0065 ,  G11B7/128 ,  G11B7/2403 ,  G11B7/24044 ,  Y10S359/90

    摘要： A hologram recording method, which records signal light onto an optical recording medium as a hologram, includes: placing a signal light region, which generates signal light, and a reference light region, which generates reference light, symmetrically with respect to an optical axis of coherent light by displaying, on a spatial light modulator which spatially modulates the incident coherent light, a pattern which divides a modulating region into a plurality of regions; generating signal light and reference light by modulating the incident coherent light by the spatial light modulator; simultaneously and coaxially illuminating, onto a reflecting-type optical recording medium, the signal light and the reference light generated from the signal light region and the reference light region disposed symmetrically to one another; and recording the signal light on the optical recording medium as a hologram.

    摘要翻译： 将信号光记录在作为全息图的光记录介质上的全息图记录方法包括：将产生信号光的信号光区域和产生参考光的参考光区域相对于光轴对称地生成参考光区域 在空间光调制器上显示相干光，空间光调制器对入射相干光进行空间调制，将调制区域划分为多个区域的图案; 通过调制来自空间光调制器的入射相干光产生信号光和参考光; 同时并同轴地照射到反射型光学记录介质上，信号光和从信号光区域产生的参考光和参考光区域彼此对称设置; 并将信号光记录在光记录介质上作为全息图。

    Shredder and shredding method
    45.
    发明申请
    Shredder and shredding method 失效
    破碎机和粉碎方法

    公开(公告)号：US20050194480A1

    公开(公告)日：2005-09-08

    申请号：US10924770

    申请日：2004-08-25

    申请人： Hisae Yoshizawa ,  Katsunori Kawano ,  Jiro Minabe ,  Kazuhiro Hayashi ,  Yasuhiro Ogasawara ,  Shin Yasuda ,  Norie Matsui

    发明人： Hisae Yoshizawa ,  Katsunori Kawano ,  Jiro Minabe ,  Kazuhiro Hayashi ,  Yasuhiro Ogasawara ,  Shin Yasuda ,  Norie Matsui

    IPC分类号： B02C18/06 ,  B02C1/00 ,  B02C18/16

    CPC分类号： B02C18/0007 ,  B02C18/086 ,  B02C19/18

    摘要： A shredder that shreds a recording medium which includes, on a surface thereof, an image forming portion and a holographic memory portion in which data is recorded. The shredder includes a data destroying unit that destroys at least the data recorded in the holographic memory portion and a shredding unit that shreds the entire recording medium. Thus, when a recording medium to which has been added a holographic memory portion in which useful information is recorded is to be discarded, the data(information) recorded in the holographic memory portion can be safely destroyed so that the data can no longer be read.

    摘要翻译： 一种粉碎记录介质的粉碎机，其在其表面上包括其中记录有数据的图像形成部分和全息存储部分。 粉碎机包括破坏至少记录在全息存储部分中的数据的数据破坏单元和粉碎整个记录介质的粉碎单元。 因此，当已经添加了其中记录了有用信息的全息存储部分的记录介质被丢弃时，可以安全地销毁记录在全息存储器部分中的数据（信息），从而不能再读取数据 。