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    • 93. 发明申请
    • Information recording/reproducing device and information reproducing method
    • 信息记录/再现装置和信息再现方法
    • US20080019253A1
    • 2008-01-24
    • US11826433
    • 2007-07-16
    • Toshio Sasaki
    • Toshio Sasaki
    • G11B7/00
    • G11B7/0065G11B7/083G11B7/0938G11B7/1275G11B7/128
    • In an information recording/reproducing device, pattern images of information light and reference light are formed by a micromirror device to produce the information light and the reference light, which have a coaxial relationship. The information light and the reference light are condensed by an objective lens and are recoded in a recording medium as interference fringes. Information light is reproduced from the recording medium in which interference fringes are recoded in advance. As to the reproduced information light, density of the pattern image thereof is calculated. A pattern-image forming-position adjuster changes a position of the pattern image of the reference light, which is formed on the micromirror device, by a predetermined number of pixels to determine the position from which the best reproduction pattern image is obtained.
    • 在信息记录/再现装置中,信息光和参考光的图案图像由微镜装置形成,以产生具有同轴关系的信息光和参考光。 信息光和参考光被物镜聚光,并在记录介质中被重新编码为干涉条纹。 信息光从其中预先重新编码干涉条纹的记录介质再现。 对于再现的信息光,计算其图案图像的浓度。 图案形成位置调整器将形成在微镜装置上的参考光的图案图像的位置改变预定数量的像素,以确定获得最佳再现图案图像的位置。