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    • 72. 发明授权
    • MEMS-based electro-optical reader and method with extended working range
    • 基于MEMS的电光读取器和扩展工作范围的方法
    • US07428999B2
    • 2008-09-30
    • US11541256
    • 2006-09-29
    • Edward Barkan
    • Edward Barkan
    • G06K7/10
    • G06K7/14G06K7/10702G06K7/10851
    • A MEMS-based reader has an extended range of working distances for reading bar code symbols. A digitizer resolves the edges of bar code symbols when located at far-away distances from the reader within the working range. The digitizer includes a differentiator for differentiating the analog signal to generate a first derivative signal, a peak detector for detecting voltage peaks in the first derivative signal, and a comparator for comparing voltage drops after the voltage peaks with a predetermined voltage value, and for determining the presence of each edge when each voltage drop at least equals, and preferably exceeds, the predetermined voltage value.
    • 基于MEMS的读取器具有用于读取条形码符号的工作距离的扩展范围。 当位于与读取器在远离工作范围的距离处时,数字化仪解析条形码符号的边缘。 数字转换器包括用于微分模拟信号以产生一阶导数信号的微分器,用于检测一阶导数信号中的电压峰值的峰值检测器和用于将电压峰值之后的电压降与预定电压值进行比较的比较器, 当每个电压降至少等于并优选地超过预定电压值时,每个边缘的存在。
    • 75. 发明授权
    • Imaging-based bar code reader utilizing stitching method and swipe guide
    • 基于成像的条形码读取器,利用缝合方法和滑动指南
    • US07344080B2
    • 2008-03-18
    • US11395569
    • 2006-03-31
    • Igor R. VinogradovMiroslav TrajkovicEdward Barkan
    • Igor R. VinogradovMiroslav TrajkovicEdward Barkan
    • G06K7/10
    • G06K7/14
    • An imaging-based bar code reader that includes an item guide to guide movement of an item including a target bar code such that target bar code passes through a field of view of the reader in a straight line. The reader further includes an imaging and decoding system to: 1) capture a series of images which include at least a part of the target bar code as the bar code is moved through the field of view of the reader; 2) sequentially analyze the series of captured images, for each captured image, identifying areas of the captured image representative of an image of the target bar code and decode decodable portions of the imaged target bar code; and 3) combining the decoded portions of the imaged target bar code using a sequence stitching method to obtain a full decode of the target bar code.
    • 一种基于成像的条形码读取器,其包括用于引导包括目标条形码的项目的移动的项目指南,使得目标条形码以直线通过读取器的视野。 读取器还包括成像和解码系统,用于:1)当条形码移动通过读取器的视野时,捕获包括目标条形码的至少一部分的一系列图像; 2)对于每个捕获的图像,顺序地分析捕获的图像的系列,识别表示目标条形码的图像的捕获图像的区域,并对成像的目标条形码的可解码部分进行解码; 以及3)使用序列拼接方法组合成像的目标条形码的解码部分,以获得目标条形码的完全解码。
    • 80. 发明申请
    • Optical code reader system and method for control of illumination for aiming and exposure
    • 用于瞄准和曝光的光学代码读取器系统和控制照明的方法
    • US20070034696A1
    • 2007-02-15
    • US11202118
    • 2005-08-11
    • Edward BarkanDavid ShiMehul Patel
    • Edward BarkanDavid ShiMehul Patel
    • G06K7/10G06K9/24
    • G06K7/10732
    • A system and method for reading an optical code is provided. The optical code reader system includes a dual aim/illumination assembly including a single light source generating: a) light having a first intensity for providing an aim pattern visible to a user for aiming the aim pattern at a target during an aim period of a scan cycle having at least an aim period and an exposure period; and b) light having a second intensity greater than the first intensity for providing illumination during the exposure period of the scan cycle. An imager module having an array of photo sensors senses incident light and generating image signals corresponding to the sensing during the exposure period.
    • 提供了一种用于读取光学代码的系统和方法。 光学代码读取器系统包括双目标/照明组件,其包括单个光源,其产生:a)具有第一强度的光,用于在扫描的目标周期期间向用户提供可见的目标图案,以将目标图案瞄准目标 具有至少目标期和曝光期的周期; 以及b)具有大于所述第一强度的第二强度的光,以在所述扫描周期的所述曝光期期间提供照明。 具有光传感器阵列的成像器模块感测入射光并且在曝光期间产生对应于感测的图像信号。