Barcode reader with edge detection enhancement
    14.
    发明授权
    Barcode reader with edge detection enhancement 有权
    具有边缘检测增强的条形码阅读器

    公开(公告)号:US08950678B2

    公开(公告)日:2015-02-10

    申请号:US12948394

    申请日:2010-11-17

    IPC分类号: G06K9/38 G06K7/10 G06K7/14

    CPC分类号: G06K7/10851 G06K7/1452

    摘要: An optical reader for decoding an encoded symbol character of a symbology includes a scan data signal processor having as an input a scan data signal encoding information representative of the encoded symbol character. The scan data signal processor includes a first time delay stage adapted to provide a primary phase waveform from the scan data signal, a second time delay stage adapted to provide an early phase waveform from the scan data signal, and a third time delay stage adapted to provide a delayed phase waveform from the scan data signal. The early phase waveform has a propagation delay less than the primary phase waveform, and the delayed phase waveform has a propagation delay greater than the primary phase waveform. The scan data signal processor further includes a peak window detection stage for generating a peak window timeframe when an amplitude of the primary phase waveform is greater than, less than, or equal to both an amplitude of the early phase waveform and the delayed phase waveform. The optical reader further includes a digitizer circuit adapted to accept, within the peak window timeframe, the scan data signal processor output.

    摘要翻译: 用于解码符号系统的编码符号字符的光学读取器包括扫描数据信号处理器,其具有编码表示编码符号字符的信息的扫描数据信号作为输入。 扫描数据信号处理器包括适于从扫描数据信号提供初级相位波形的第一时间延迟级,适于从扫描数据信号提供早期相位波形的第二时间延迟级,以及适于 从扫描数据信号提供延迟相位波形。 早期相位波形的传播延迟小于初级相位波形,延迟相位波形的传播延迟大于主相位波形。 扫描数据信号处理器还包括峰值窗口检测级,用于当主相波形的振幅大于,小于或等于早期相位波形和延迟相位波形的振幅时产生峰值窗口时间帧。 光学读取器还包括数字转换器电路,其适于在峰值窗口时间帧内接收扫描数据信号处理器输出。

    BARCODE READER WITH EDGE DETECTION ENHANCEMENT
    15.
    发明申请
    BARCODE READER WITH EDGE DETECTION ENHANCEMENT 有权
    条形码读取器,边缘检测增强

    公开(公告)号:US20120118974A1

    公开(公告)日:2012-05-17

    申请号:US12948394

    申请日:2010-11-17

    IPC分类号: G06K7/14

    CPC分类号: G06K7/10851 G06K7/1452

    摘要: An optical reader for decoding an encoded symbol character of a symbology includes a scan data signal processor having as an input a scan data signal encoding information representative of the encoded symbol character. The scan data signal processor includes a first time delay stage adapted to provide a primary phase waveform from the scan data signal, a second time delay stage adapted to provide an early phase waveform from the scan data signal, and a third time delay stage adapted to provide a delayed phase waveform from the scan data signal. The early phase waveform has a propagation delay less than the primary phase waveform, and the delayed phase waveform has a propagation delay greater than the primary phase waveform. The scan data signal processor further includes a peak window detection stage for generating a peak window timeframe when an amplitude of the primary phase waveform is greater than, less than, or equal to both an amplitude of the early phase waveform and the delayed phase waveform. The optical reader further includes a digitizer circuit adapted to accept, within the peak window timeframe, the scan data signal processor output.

    摘要翻译: 用于解码符号系统的编码符号字符的光学读取器包括扫描数据信号处理器,其具有编码表示编码符号字符的信息的扫描数据信号作为输入。 扫描数据信号处理器包括适于从扫描数据信号提供初级相位波形的第一时间延迟级,适于从扫描数据信号提供早期相位波形的第二时间延迟级,以及适于 从扫描数据信号提供延迟相位波形。 早期相位波形的传播延迟小于初级相位波形,延迟相位波形的传播延迟大于主相位波形。 扫描数据信号处理器还包括峰值窗口检测级,用于当主相波形的振幅大于,小于或等于早期相位波形和延迟相位波形的振幅时产生峰值窗口时间帧。 光学读取器还包括数字转换器电路,其适于在峰值窗口时间帧内接收扫描数据信号处理器输出。

    BAR CODE SYMBOL READING SYSTEM EMPLOYING AN EXTREMELY ELONGATED LASER SCANNING BEAM CAPABLE OF READING POOR AND DAMAGED QUALITY BAR CODE SYMBOLS WITH IMPROVED LEVELS OF PERFORMANCE
    17.
    发明申请
    BAR CODE SYMBOL READING SYSTEM EMPLOYING AN EXTREMELY ELONGATED LASER SCANNING BEAM CAPABLE OF READING POOR AND DAMAGED QUALITY BAR CODE SYMBOLS WITH IMPROVED LEVELS OF PERFORMANCE 有权
    条形码符号读取系统采用极度延长的激光扫描光束,可读取不良和损坏的质量条码代码,具有改进的性能水平

    公开(公告)号:US20120318868A1

    公开(公告)日:2012-12-20

    申请号:US13160897

    申请日:2011-06-15

    IPC分类号: G06K7/14

    CPC分类号: G06K7/10564 G06K7/146

    摘要: A laser scanning bar code symbol reading system for scanning and reading poor quality or damaged bar code symbols. The system includes a housing having a light transmission window; an extremely-elongated laser beam production module for producing an extremely-elongated laser beam having (i) a direction of propagation extending along a z reference direction, (ii) a height dimension being indicated by the y reference direction, and (iii) a width dimension being indicated by the x reference direction, where x, y and z directions are orthogonal to each other. Each extremely-elongated laser beam is characterized by an elongation ratio (ER) that is defined as Y/X>4.5 for any point within the working range of the laser scanning bar code symbol reading system, extending along the z direction; where (i) Y indicates the beam height of the extremely-elongated laser beam measured in the Y reference direction, and X indicates the beam width of the extremely-elongated laser beam measured in the X reference direction, and (iii) the beam height (Y) and the laser beam width (X) are measured at 1/e2 intensity clip level. A laser scanning mechanism is provided for scanning the extremely-elongated laser beam out the light transmission window and across a scanning field defined external to the housing, in which a bar code symbol is present for scanning by the extremely-elongated laser scanning beam.

    摘要翻译: 一种用于扫描和读取质量差或条形码符号损坏的激光扫描条形码符号读取系统。 该系统包括具有透光窗的外壳; 一种非常细长的激光束产生模块,用于产生非常细长的激光束,该激光束具有(i)沿着氮基准方向延伸的传播方向,(ii)由y参考方向指示的高度尺寸,以及(iii) 尺寸由x参考方向指示,其中x,y和z方向彼此正交。 每个非常细长的激光束的特征在于在激光扫描条形码符号读取系统的工作范围内沿着z方向延伸的任意点被定义为Y / X> 4.5的伸长率(ER) 其中(i)Y表示在Y参考方向上测量的非常细长的激光束的光束高度,X表示在X参考方向上测量的非常细长的激光束的光束宽度,以及(iii)光束高度 (Y)和激光束宽度(X)以1 / e2强度剪辑电平进行测量。 提供了一种激光扫描机构,用于将非常细长的激光束从光透射窗口扫描并跨过限定在外壳外部的扫描场,其中存在条形码符号用于通过非常细长的激光扫描光束进行扫描。

    USER-ADAPTIVE PRESENTATION SCANNER
    20.
    发明申请
    USER-ADAPTIVE PRESENTATION SCANNER 审中-公开
    用户自适应演示扫描仪

    公开(公告)号:US20120211565A1

    公开(公告)日:2012-08-23

    申请号:US13362586

    申请日:2012-01-31

    IPC分类号: G06K7/14

    摘要: A system for collecting data is provided that includes a presentation scanning apparatus comprising a first presentation scan window formed into a housing. A first laser source within the housing is operable to emit a first beam through the first presentation scan window along a first axis and illuminate a target comprising an encoded symbol character. A first scanning mirror is disposed intermediate the first laser source and the first presentation scan window. The first scanning mirror is operable to deflect the first beam emitted from the first laser source so that the first beam scans across the presentation scan window according to a baseline scan pattern.

    摘要翻译: 提供了一种用于收集数据的系统,其包括呈现扫描装置,其包括形成为壳体的第一呈现扫描窗口。 外壳内的第一激光源可操作以沿着第一轴发射通过第一呈现扫描窗口的第一光束并照亮包括编码符号字符的目标。 第一扫描反射镜设置在第一激光源和第一显示扫描窗口之间。 第一扫描反射镜可操作以使从第一激光源发射的第一光束偏转,使得第一光束根据基线扫描图案扫描呈现扫描窗口。