Information search device
    1.
    发明授权
    Information search device 失效
    信息搜索装置

    公开(公告)号:US3999846A

    公开(公告)日:1976-12-28

    申请号:US597908

    申请日:1975-07-21

    IPC分类号: G06K17/00 G03B23/12

    CPC分类号: G06K17/0019

    摘要: In an information search device for searching for any desired information in a film provided with a series of information frames, frame index marks and document index marks formed along the information frames on the opposite sides thereof, there is provided a drive motor for transporting the film, a light source system for irradiating the film, a photoelectric converter element for detecting the frame index marks, a second photoelectric converter element for detecting the document index marks, a gate circuit for receiving the detection signals from the converter elements to selectively pass one of those detection signals, a counter for counting the detection signals passed through the gate circuit, and a brake mechanism for stopping the transport of the film when the counter has counted up a number of detection signals corresponding to the search number of the desired information.

    摘要翻译: 在用于搜索具有一系列信息帧,帧索引标记和在其相对侧的信息帧上形成的文档索引标记的胶片中的任何所需信息的信息搜索装置中,提供了一种用于传送胶片的驱动电机 ,用于照射胶片的光源系统,用于检测帧索引标记的光电转换元件,用于检测文档索引标记的第二光电转换元件,用于接收来自转换器元件的检测信号的门电路,以选择性地通过 这些检测信号,用于对通过门电路的检测信号进行计数的计数器,以及当计数器对与所需信息的搜索号相对应的检测信号计数时停止胶片传送的制动机构。