OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND ITS REPRODUCTION METHOD
    3.
    发明申请
    OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND ITS REPRODUCTION METHOD 审中-公开
    光信息记录/再现设备及其复制方法

    公开(公告)号:US20090080314A1

    公开(公告)日:2009-03-26

    申请号:US12211747

    申请日:2008-09-16

    IPC分类号: G11B7/00

    CPC分类号: G11B7/0065

    摘要: An optical recording/reproducing apparatus includes an optical recording medium in which a holograms are recorded depending on an incident angle of a reference beam. The reference beam is irradiated to holograms while changing the incident angle to generate a reproduction light beam, and an image patterns are detected by an image pattern detector. The continuously output reproduction image patterns are temporarily stored in an image recorder, and the maximum value of reproduction light intensity is detected to generate a trigger signal. Depending on the trigger signal, an optimal image pattern is extracted from continuous reproduction image patterns, and thus, two-dimensional data is decoded.

    摘要翻译: 光学记录/再现装置包括光记录介质,其中根据参考光束的入射角记录全息图。 参考光束在改变入射角度的同时照射到全息图以产生再现光束,并且图像图案由图像模式检测器检测。 连续输出的再现图像图案被临时存储在图像记录器中,并且检测再现光强度的最大值以产生触发信号。 根据触发信号,从连续再现图像图案中提取最佳图像图案,从而对二维数据进行解码。