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14 条记录 (耗时 0.013 秒)

    Bar code reader for reading high to low contrast bar code symbols
    1.
    发明授权
    Bar code reader for reading high to low contrast bar code symbols 失效
    用于读取高对比度条形码符号的条形码阅读器

    公开(公告)号：US5949054A

    公开(公告)日：1999-09-07

    申请号：US546588

    申请日：1995-10-23

    申请人： Thomas W. Karpen ,  William H. Havens ,  Dennis W. McEnery ,  Brian L. Jovanovski

    发明人： Thomas W. Karpen ,  William H. Havens ,  Dennis W. McEnery ,  Brian L. Jovanovski

    IPC分类号： G06K7/10 ,  G06K7/14

    CPC分类号： G06K7/10851 ,  G06K7/14 ,  G06K7/1478

    摘要： A bar code reader is provided which can read bar code symbols of varying contrast, from high to medium to low contrast. The bar code reader includes a digitizing circuit which digitizes an analog signal representing the reflectance function of a scanned bar code by comparing the analog signal to a threshold signal. In the present invention, the threshold signal is switchable between a first state wherein the threshold signal is a standard threshold signal suitable for digitizing analog signals representing medium to high contrast bar code symbols and a second state wherein the threshold signal is a non-standard threshold signal suitable for digitizing analog signals representing low contrast bar code symbols. In one embodiment of the invention, the threshold signal is manually adjustable. In another embodiment, a bar code reader is provided which automatically digitizes and decodes bar code symbols of varying contrast by repetitively scanning bar code symbols, using first and second alternating threshold signal states to digitize the analog signal resulting from each scan.

    摘要翻译： 提供了条形码阅读器，可以读取从高到中至低对比度的不同对比度的条形码符号。 条形码读取器包括数字化电路，其通过将模拟信号与阈值信号进行比较来数字化表示扫描条形码的反射函数的模拟信号。 在本发明中，阈值信号可以在第一状态和第二状态之间切换，第一状态是阈值信号是适合于对表示中高对比度条形码符号的模拟信号进行数字化的标准阈值信号，以及第二状态，其中阈值信号是非标准阈值 信号适合于数字化表示低对比度条形码符号的模拟信号。 在本发明的一个实施例中，阈值信号是可手动调节的。 在另一个实施例中，提供了一种条形码读取器，其通过使用第一和第二交替阈值信号状态来重复扫描条形码符号来自动数字化和解码变化对比度的条形码符号，以对由每次扫描得到的模拟信号进行数字化。

    Multipurpose optical reader
    2.
    发明申请
    Multipurpose optical reader 审中-公开
    多用途光学阅读器

    公开(公告)号：US20070267501A1

    公开(公告)日：2007-11-22

    申请号：US11495417

    申请日：2006-07-28

    申请人： Brian L. Jovanovski ,  William H. Havens ,  Edward C. Bremer ,  Timothy P. Meier ,  Ynjiun P. Wang

    发明人： Brian L. Jovanovski ,  William H. Havens ,  Edward C. Bremer ,  Timothy P. Meier ,  Ynjiun P. Wang

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10722 ,  G06K2207/1011

    摘要： An optical reading device for collecting and processing symbology data comprising: an image sensor array of pixels for converting light reflected from a target containing a machine readable indicia into output signals representative thereof, the image sensor being operated in a global shutter mode wherein all or substantially all of the pixels in the array are exposed simultaneously during an exposure time; receive optics for directing light from the target to the image sensor array, the optics having a receive optics optical axis; a processor for decoding the output signals; an illumination source for generating illumination light illuminating the target and illumination optics for directing the illumination light onto the target; a housing encapsulating the image sensor array, receive optics and illumination source; wherein the processor decodes in a first mode to continuously process available output signals automatically and a second mode to output signal in response to an activation event.

    摘要翻译： 一种用于收集和处理符号系统数据的光学读取装置，包括：用于将从包含机器可读标记的目标反射的光转换为表示其的输出信号的像素的图像传感器阵列，所述图像传感器以全局快门模式操作，其中全部或基本上 阵列中的所有像素在曝光时间期间同时曝光; 接收用于将光从目标引导到图像传感器阵列的光学元件，所述光学器件具有接收光学光学轴; 用于对输出信号进行解码的处理器; 用于产生照射目标的照明光的照明源和用于将照明光引导到目标上的照明光学器件; 封装图像传感器阵列的壳体，接收光学器件和照明源; 其中所述处理器以第一模式解码以自动连续地处理可用的输出信号，以及响应于激活事件输出信号的第二模式。

    Optical assembly for barcode scanner
    3.
    发明授权
    Optical assembly for barcode scanner 失效

    公开(公告)号：US6119939A

    公开(公告)日：2000-09-19

    申请号：US111476

    申请日：1998-07-08

    申请人： Eric D. Schwartz ,  Edward B. Hubben ,  Brian L. Jovanovski ,  Vivian L. Hunter ,  Melvin D. McCall

    发明人： Eric D. Schwartz ,  Edward B. Hubben ,  Brian L. Jovanovski ,  Vivian L. Hunter ,  Melvin D. McCall

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10732

    摘要： The invention is optical assembly for use in a barcode reader that includes a frame having a rear housing and a pair of arms outwardly extended from the housing. An optical card containing an imaging lens is slidably received in a rear guideway situated between the arms. An aperture card is slidably received in a front guideway situated between the arms in front of the lens. Lamp support brackets are also mounted to either side of the arms. Each bracket contains a pair of LEDs that are aligned in coplanar relation with the imaging lens. A cylindrical lens is mounted in front of the lamp support brackets within the arms of the frame to magnify and focus the illumination from the LED upon a target in barcode space. A horizontally extended field stop aperture is positioned in front of each LED.

    Terminal having illumination and exposure control
    4.
    发明授权
    Terminal having illumination and exposure control 有权
    终端有照明和曝光控制

    公开(公告)号：US08939374B2

    公开(公告)日：2015-01-27

    申请号：US12981793

    申请日：2010-12-30

    申请人： Brian L. Jovanovski ,  Alexey Chernyakov ,  Daniel Van Volkinburg

    发明人： Brian L. Jovanovski ,  Alexey Chernyakov ,  Daniel Van Volkinburg

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10732 ,  G06K7/10752 ,  G06K7/10851

    摘要： There is set forth herein an indicia reading terminal having a first illumination and exposure control configuration and a second illumination and exposure control configuration, the first illumination and control configuration having a first associated illumination control and a first associated exposure control, the second illumination and exposure control configuration having a second associated illumination control and a second associated exposure control, wherein with the first illumination control active an average energization level of the illumination subsystem during exposure of one or more frames is higher than with the second illumination control active, and wherein with the first exposure control active an average exposure period of the image sensor array is shorter than with the second exposure control active.

    摘要翻译： 这里给出了具有第一照明和曝光控制配置和第二照明和曝光控制配置的标记读取终端，第一照明和控制配置具有第一相关联的照明控制和第一相关联的曝光控制，第二照明和曝光 控制配置具有第二相关联的照明控制和第二相关联的曝光控制，其中当所述第一照明控制有效时，所述照明子系统在一个或多个帧的曝光期间的平均通电电平高于所述第二照明控制有效的平均通电电平，并且其中 激活图像传感器阵列的平均曝光周期的第一曝光控制比第二曝光控制激活的时间短。