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    Fiber optic scanner system
    3.
    发明公开
    Fiber optic scanner system 失效
    光纤扫描仪系统

    公开(公告)号：EP0097798A3

    公开(公告)日：1987-01-28

    申请号：EP83104578

    申请日：1983-05-10

    申请人： International Business Machines Corporation

    发明人： Balliet, Layton ,  Coffman, Donald Howard ,  Gomez, Carlos

    IPC分类号： G06K07/10

    CPC分类号： G06K7/10881 ,  G06K2207/1018

    摘要： A fiber optic scanner system (10) for reading coded patterns is provided having a single optical fiber extending from the reading end of the scanner tip to a remote terminal (36). The remote terminal includes an optical signal generator (44) for generating and driving light pulses along the single optical fiber to the reading end of the scanner member so as to illuminate a bar code and obtain reflected pulses therefrom which are carried to the remote terminal receiver (46) and decoded.

    Method for controlling the operation of an optical scanner
    4.
    发明公开
    Method for controlling the operation of an optical scanner 失效
    控制光扫描仪操作的方法

    公开(公告)号：EP0079495A3

    公开(公告)日：1986-02-05

    申请号：EP82109888

    申请日：1982-10-26

    申请人： International Business Machines Corporation

    发明人： Dickson, Leroy David ,  Pierce, Charles Michael ,  Stokes, Olen L. ,  Woodland, Norman Joseph

    IPC分类号： G06K07/10

    CPC分类号： G06K7/10871

    摘要： An optical scanner in a retail store checkout stand includes a single item detector (14, 16) upstream of the scanner window (12). Output signals from the item detector and from symbol recognition logic are used to open and closes a shutter (27) in the beam path of the scanner laser. The shutter is opened and a first time out sequence is started when the beam path is interrupted. A second, short time out sequence is restarted each time a valid symbol is recognized. A third time out sequence of intermediate length supersedes the first out sequence when the beam path is cleared. The laser shutter is closed and the symbol is transferred to a terminal (38) or controller upon the completion of any active time out sequence or upon recognition of a predetermined number of identical symbols, whichever comes first.

    Bar code reader
    8.
    发明公开
    Bar code reader 失效
    条码读取器

    公开(公告)号：EP0150494A3

    公开(公告)日：1985-08-21

    申请号：EP84116269

    申请日：1984-12-22

    申请人： ROBERT BOSCH GMBH

    发明人： Howind, Gerhard ,  Messerschmidt, Rudolf, Ing.grad.

    IPC分类号： G06K07/10

    CPC分类号： G06K7/10742 ,  G06K7/10831

    摘要： Es wird ein Strichcodeleser vorgeschlagen, der zur Auf nahme von Strichcodes geeignet ist. Der Strichcodeleser um faßt einen Sender für einen Lichtstrahl und einen Empfänger zur Auswertung des reflektierten Lichtstrahls. Zur Verbesse rung der Lesbarkeit wurde im Strahlengang an der Spitze des Strichcodelesers eine Streuscheibe angeordnet, so daß auch unter schwierigen Verhältnissen eine Detektion des Strichco des möglich ist.

    Semiconductor integrated circuit optical image-to-electrical signal transducer
    9.
    发明公开
    Semiconductor integrated circuit optical image-to-electrical signal transducer 失效
    半导体集成电路光学图像到电信号传输器

    公开(公告)号：EP0048805A3

    公开(公告)日：1982-12-15

    申请号：EP81106125

    申请日：1981-08-05

    申请人： International Business Machines Corporation

    发明人： Chamberlain, Savvas Georgiou ,  Rutz, Richard Frederick

    IPC分类号： H01L27/14 ,  G06K07/10

    CPC分类号： G06K7/10841 ,  H01L27/14681 ,  H01L27/14825

    摘要： A gallium arsenide integrated circuit optical image-to-electrical signal transducer comprises a charge-coupled device shift register which produces a serial output signal representing an optical image from a set of electrical charge signals received in parallel from an array of phototransistors at which the optical image is directed. The collectors of the phototransistors and the charge-coupled device shift register are formed in a common layer (21) in the integrated circuit, barriers (27) to charge flow being formed in the common layer to provide the segments of the shift register. In operation of the transducer, a bias voltage may be applied to the emitters of the phototransistors and their bases left floating. A potential well can be produced between the array of phototransistors and the shift register to enhance the light sensitivity of the transducer.