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热词
    • 2. 发明授权
    • Apparatus and method for information from an information carrier
    • 信息载体信息的装置和方法
    • US4990764A
    • 1991-02-05
    • US299190
    • 1989-01-19
    • Toshiyuki YokochiShuko Fujita
    • Toshiyuki YokochiShuko Fujita
    • H04N1/12H04N1/193
    • H04N1/125H04N1/121H04N1/1215H04N1/193
    • An information read out apparatus for reading information from an information carrier, the apparatus comprising a transparent medium, transportation rollers for transporting the information carrier at a predetermined distance above the transparent medium, a visible light source for radiating light in a first direction toward the information carrier through the transparent medium, the light being reflected through the transparent medium in a second direction, the reflected light corresponding to an analog representation of information on the information carrier, light detecting means responsive to light reflected from the information carrier through the transparent medium for receiving the reflected light, a guide above the transparent medium and spacer disposed between the guide and the transparent medium for maintaining a predetermined minimum distance between the guide and the transparent medium, the distance being regulated to achieve a resolution above a predetermined level with respect to the information read by the light detecting means.
    • 一种用于从信息载体读取信息的信息读出装置,所述装置包括透明介质,用于在信息载体上方以预定距离传送信息载体的传送辊,用于沿朝向信息的第一方向照射光的可见光源 载体通过透明介质,光在第二方向上通过透明介质反射,反射光对应于信息载体上的信息的模拟表示,光检测装置响应于通过透明介质从信息载体反射的光, 接收反射光,在透明介质上方的引导件和设置在引导件和透明介质之间的间隔件,用于保持引导件和透明介质之间的预定的最小距离,该距离被调节以实现高于预定级别的分辨率, 对由光检测装置读取的信息进行分析。