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    • 3. 发明申请
    • METHOD AND APPARATUS FOR RETRIEVING INFORMATION FROM OPTICAL STORAGE MEDIUM
    • 从光存储介质检索信息的方法和装置
    • US20100090113A1
    • 2010-04-15
    • US12578828
    • 2009-10-14
    • Toshio SASAKI
    • Toshio SASAKI
    • G01T1/20
    • G11B7/005G11B7/1359G11B7/1381G11B2007/0013
    • To retrieve information from an optical storage medium having a recording layer in which binary information is recorded in a form of presence or absence of a fluorescing property, the recording layer is illuminated with a light beam in a linearly polarized state, to induce fluorescence in the recording layer. Fluorescent light is isolated from light reflected in the optical storage medium by a polarized light separation element attenuating a linearly polarized component (including the light reflected in the optical storage medium) of the light coming from the optical storage medium, and the fluorescent light derived from the induced fluorescence is detected by a photosensor, which outputs a signal bearing the binary information recorded in the recording layer.
    • 为了从具有以存在或不存在荧光性质的形式记录二进制信息的记录层的光学存储介质检索信息,以线偏振状态的光束照射记录层,以在 记录层。 荧光灯通过使来自光存储介质的光的线偏振分量(包括光存储介质中反射的光)衰减的偏振光分离元件与从光存储介质反射的光隔离, 感应荧光由光电传感器检测,光电传感器输出承载记录在记录层中的二进制信息的信号。
    • 7. 发明申请
    • Optical recording method, optical recording apparatus and optical recording medium
    • 光记录方法,光记录装置和光记录介质
    • US20070223348A1
    • 2007-09-27
    • US11727061
    • 2007-03-23
    • Toshio Sasaki
    • Toshio Sasaki
    • G11B7/00
    • G11B7/0065G03H1/16G11B7/00781G11B7/24044G11B7/2405G11B7/245G11B7/246G11B7/2463G11B7/252G11B7/2585G11B7/26G11B20/1217G11B27/10G11B27/3027G11B2020/1287G11B2220/2504
    • To provide an optical recording method including: applying information and reference beams onto an optical recording medium to record information therein, the optical recording medium having a recording layer for recording the information by holography, wherein at least the information beam is passed through a spatial light modulator and is formed as a two-dimensional pattern composed of a data area and a plurality of synchronization marks for detecting information concerning the positions of data recorded in the data area, and wherein the synchronization marks are arranged in a random pattern so that in a Fourier-transformed image of the two-dimensional pattern, light intensities derived from the synchronization marks are lower than light intensities in a Fourier-transformed image of a two-dimensional pattern composed of a data area and a plurality of synchronization marks arranged in a grid pattern, the light intensities being derived from the synchronization marks arranged in a grid pattern.
    • 为了提供一种光学记录方法,包括:将信息和参考光束应用到光学记录介质上以在其中记录信息,所述光学记录介质具有用于通过全息记录信息的记录层,其中至少信息光束通过空间光 并且形成为由数据区域和多个同步标记组成的二维图案,用于检测关于记录在数据区域中的数据的位置的信息,并且其中同步标记以随机图案排列,使得在 二维图案的傅里叶变换图像,从同步标记导出的光强度低于由数据区域和布置在网格中的多个同步标记组成的二维图案的傅里叶变换图像中的光强度 模式,光强度从布置在网格中的同步标记导出 模式