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    Multiple laser indicia reader optionally utilizing a charge coupled device (CCD) detector and operating method therefor
    12.
    发明授权
    Multiple laser indicia reader optionally utilizing a charge coupled device (CCD) detector and operating method therefor 失效
    可选地使用电荷耦合器件（CCD）检测器的多激光标记读取器及其操作方法

    公开(公告)号：US5717221A

    公开(公告)日：1998-02-10

    申请号：US729536

    申请日：1996-10-11

    申请人： Yajun Li ,  Robert A. Doran ,  John Barile

    发明人： Yajun Li ,  Robert A. Doran ,  John Barile

    IPC分类号： G06K7/015 ,  G06K7/10 ,  G02B26/10 ,  H01J3/16

    CPC分类号： G06K7/10574

    摘要： An electro-optical scanning device reads indicia having parts of different light reflectivity, including bar codes and matrix arrays such as UPSCODES. The scanning device includes laser or light emitting diodes for emitting at least two light beams of the same or different wavelengths. The light beams may be visible to the human eye, and the beams are optically directed to form one or two scan lines to scan portions of a symbol. Dual photosensor(s) or a charge coupled device detects light reflected from the different portions of the symbol. The charge coupled device can be used to detect either reflected ambient light or the reflected visible light from the beams emitted by the diodes. The photosensors generate signals corresponding to the detected light which can be processed simultaneously. The device is particularly useful in reading two dimensional or more complex symbols. Methods for reading indicia are also described.

    摘要翻译： 电光扫描装置读取具有不同光反射率的部分的标记，包括条形码和诸如UPSCODES的矩阵阵列。 扫描装置包括用于发射相同或不同波长的至少两个光束的激光或发光二极管。 光束对于人眼可能是可见的，并且光束被光学定向以形成一条或两条扫描线以扫描符号的部分。 双光电传感器或电荷耦合器件检测从符号的不同部分反射的光。 电荷耦合器件可用于检测来自二极管发射的光束的反射环境光或反射的可见光。 光传感器产生对应于可同时处理的检测光的信号。 该器件在读取二维或更复杂的符号时特别有用。 还描述了读标记的方法。

    Two-dimensional bar code scanner interface
    15.
    发明授权
    Two-dimensional bar code scanner interface 失效

    公开(公告)号：US5789728A

    公开(公告)日：1998-08-04

    申请号：US381045

    申请日：1995-01-31

    申请人： John Barile ,  Hal Charych ,  Steven Chew ,  James Geibel

    发明人： John Barile ,  Hal Charych ,  Steven Chew ,  James Geibel

    IPC分类号： G06K7/00 ,  G06K7/10 ,  G06K17/00

    CPC分类号： G06K7/10851 ,  G06K17/0022 ,  G06K7/10584 ,  G06K7/10881

    摘要： An interface between a two-dimensional bar code scanner and a host digital decoder is provided through a 15-pin electronic connector, which transfers to the decoder an actuating signal either from a scanner trigger switch or from an external device. In response, the digital decoder provides the scanner with operating power. The scanner generates and relays a bar code signal and a scanning direction signal back to the digital decoder, which uses these signals to identify a bar code being scanned as a one-dimensional or two-dimensional code. If the bar code is determined to be a two-dimensional code, upon detection of laser pattern alignment with the label the digital decoder sends a scanning control signal to the scanner to control a laser pattern generated by the scanner.