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    Optical label reading system and apparatus
    1.
    发明授权
    Optical label reading system and apparatus 失效
    光学标签读取系统和设备

    公开(公告)号：US3553437A

    公开(公告)日：1971-01-05

    申请号：US3553437D

    申请日：1967-05-02

    申请人： SYLVANIA ELECTRIC PROD

    发明人： BOOTHROYD WILSON P

    IPC分类号： G06K7/015 ,  G06K7/10 ,  G01N21/30 ,  G06K9/04

    CPC分类号： G06K7/10871 ,  G06K7/015

    摘要： Optical label reading system including apparatus for reading coded labels affixed to moving objects or vehicles. A label bearing a code pattern formed of retroreflective material is attached to an object or a vehicle in a predetermined ''''label area.'''' When the object or vehicle appears within a predetermined region or ''''read zone'''' of the optical label reading apparatus, the label area is flash illuminated by a source of light and, as a result, a reflected optical image of the coded label and label area is translated through an optical shutter and lens onto a photoconductive image surface of a vidicon tube and stored thereby. The stored image of the vidicon tube is read out by a television-type raster scanning pattern and the video output signal from the vidicon tube, after suitable processing, is applied to suitable logic and decoder circuitry for decoding thereof.