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    • 1. 发明公开
    • Bar code reader with an integrated scanning component module mountable on printed circuit board
    • 带集成扫描元件模块的条码阅读器可安装在印刷电路板上
    • EP2282283A2
    • 2011-02-09
    • EP10012067.4
    • 1999-03-22
    • Symbol Technologies, Inc.
    • Dvorkis, PaulBarkan, EdwardShepard, HowardGiordano, JoesephGofman, YuriDoran, RobertBarile, JohnGrosfeld, HenryKorenshtein, AviChernin, OphirCordes, KevinMaiman, MitchWallace, Patrick
    • G06K7/10
    • G06K7/10851G06K7/10633G06K7/10653G06K7/10881G06K7/1098
    • A bar code reader has an integrated scanning component module which is mountable on a printed circuit board. In one embodiment, the module may include the digitizer/decoder electronics, enabling the module to be used with a generic PCB. In some embodiments, the module includes a high speed optical scanning arrangement having an optical element which extends longitudinally of a flexible member, secured at one end. In other embodiments, the invention extends to a hand-held optical scanner having a scanning assembly, detector and data transmission coupling all mounted to a common printed circuit board, preferably located within a manually-graspable handle. In yet a further embodiment, an abuse-detector or accelerometer is provided for determining when the device is exposed to deceleration above a predetermined limit, and optionally for automatically shutting down applications programs and for providing a black-box-record of a short time frame before the device was exposed to an unexpected shock. Preferably, the reader is shock protected by a thermo-plastic elastomer housing section. An outgoing light beam is directed at a non-orthogonal angle relative to the PCB.
    • 条形码阅读器具有可安装在印刷电路板上的集成扫描组件模块。 在一个实施例中,该模块可以包括数字化器/解码器电子器件,使模块能够与通用PCB一起使用。 在一些实施例中,模块包括高速光学扫描装置,该高速光学扫描装置具有在一端固定的柔性构件的纵向延伸的光学元件。 在其他实施例中,本发明延伸到手持式光学扫描器,其具有全部安装到公共印刷电路板的扫描组件,检测器和数据传输耦合器,所述公共印刷电路板优选地位于手动可抓握的手柄内。 在又一个实施例中,提供滥用检测器或加速度计,用于确定装置何时暴露于高于预定限制的减速,并且可选地用于自动关闭应用程序并提供短时间帧的黑盒记录 在设备暴露于意外震动之前。 优选地,读取器被热塑性弹性体壳体部分冲击保护。 出射光束相对于PCB以非正交的角度定向。
    • 6. 发明公开
    • Optical scanner
    • 光学扫描仪
    • EP1443450A3
    • 2005-08-24
    • EP04075635.5
    • 1996-05-31
    • SYMBOL TECHNOLOGIES, INC.
    • Goren, DavidBridgelall, RajKuchenbrod, HarrySerbin, GaryBarkan, EdwardShellhammer, StephenPandolfo, DonnaCipriani, GuyLi, YajunCampanelli, JosephKatz, JosephMcGlynn, Daniel
    • G06K7/10
    • G06K7/10851G06K7/10544G06K7/14G06K7/1452G06K7/1478
    • An optical scanning system is provided for producing a signal representative of a spatial distribution of indicia having different degrees of reflectivity to light, such as a bar code (14).
      The invention further relates to a method of reading an indicia where the electrical signal representative of the indicia is selectively sampled, the samples being analyzed to establish whether they will represent true data or noise, and signal collection, processing and sampling is then adjusted allowing more aggressive decoding techniques to be used. In another aspect, a non-linear edge strength digitizer is employed capable of decoding both poorly printed and high density bar codes. A matched filter for bar code symbol signals is also proposed; as there is no inherent synchronisation in the bar code signals, a peak or edge detector is used to trigger the system. An automatic deblurring signal processor also proposed wherein a first derivative of an input bar code signal is compared against a threshold range and, if no match is found, then parameters of the processor system are varied to increase the likelihood of a comparison being successful.
    • 提供了一种光学扫描系统,用于产生表示具有不同反射率的标记的空间分布的信号,例如条形码(14)。 本发明还涉及一种读取标记的方法,其中选择性地采样代表标记的电信号,分析样本以确定它们是否代表真实的数据或噪声,然后调整信号收集,处理和采样以允许更多 积极的解码技术被使用。 另一方面,采用非线性边缘强度数字转换器,能够对差印刷和高密度条形码进行解码。 还提出了用于条形码符号信号的匹配滤波器; 由于在条码信号中没有固有的同步,所以使用峰值或边缘检测器来触发系统。 还提出了一种自动去模糊信号处理器,其中将输入条形码信号的一阶导数与阈值范围进行比较,并且如果未找到匹配,则改变处理器系统的参数以增加比较成功的可能性。