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317 条记录 (耗时 0.034 秒)

    Scan board module for laser scanners
    41.
    发明授权
    Scan board module for laser scanners 失效
    激光扫描仪扫描板模块

    公开(公告)号：US5015833A

    公开(公告)日：1991-05-14

    申请号：US484170

    申请日：1990-02-23

    申请人： Howard M. Shepard ,  Yuri Gofman ,  Edward Barkan

    发明人： Howard M. Shepard ,  Yuri Gofman ,  Edward Barkan

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10881

    摘要： A scan board module includes a printed circuit board on which optical and scanning components are mounted in an optically-aligned relationship. The module is mountable in hand-held heads and protected from damage due to external shock by shock mounts, or in workstations which are either directly or indirectly connected to a cash register-type terminal or hand-held terminal.

    摘要翻译： 扫描板模块包括印刷电路板，光学和扫描部件以光学对准关系安装在该印刷电路板上。 该模块可安装在手持式头部中，防止由于冲击支架的外部冲击而损坏，或直接或间接连接到收银机型端子或手持式端子的工作站。

    Portable laser scanning arrangement for and method of evaluating and validating bar code symbols
    45.
    发明授权
    Portable laser scanning arrangement for and method of evaluating and validating bar code symbols 失效
    便携式激光扫描装置以及评估和验证条码符号的方法

    公开(公告)号：US4251798A

    公开(公告)日：1981-02-17

    申请号：US911171

    申请日：1978-05-31

    申请人： Jerome Swartz ,  Shelley A. Harrison ,  Edward Barkan ,  Frank Delfine ,  George Brown

    发明人： Jerome Swartz ,  Shelley A. Harrison ,  Edward Barkan ,  Frank Delfine ,  George Brown

    IPC分类号： G06K7/10 ,  G06K9/24

    CPC分类号： G06K7/10871 ,  G06K7/10881

    摘要： Laser light reflected from a bar code symbol pattern is detected by a photodetector mounted in a portable scanning head of a laser scanning system. By selecting appropriate threshold values on the analog signal generated by the photodetector, the analog signal is converted to a series of pulses, each pulse width accurately corresponding to the width of a bar from the scanned pattern. A plurality of functions can be determined from the series of pulses, each function being independently selected by keyboard entry from the head, displayed on the head, and/or recorded by a printer remote from the head. Single line or multiple line scans in two orthogonal directions relative to the pattern may be selected. A bimorph or speaker-type oscillatory element may be utilized as a miniature scanning element. Circuitry for synchronizing scanning along both axes, and for generating a signal to drive the bimorph in a uniform, constant velocity manner is also disclosed.

    摘要翻译： 由条形码符号图案反射的激光由安装在激光扫描系统的便携式扫描头中的光检测器检测。 通过对由光电检测器产生的模拟信号选择适当的阈值，将模拟信号转换成一系列脉冲，每个脉冲宽度与扫描图案的条宽度精确对应。 可以从一系列脉冲确定多个功能，每个功能通过从头部的键盘输入独立地选择，显示在头部上，和/或由远离头部的打印机记录。 可以选择相对于图案的两个正交方向的单行或多行扫描。 双压电晶片或扬声器型振荡元件可以用作微型扫描元件。 还公开了用于沿着两个轴同步扫描并且用于产生以均匀的恒定速度方式驱动双压电晶片的信号的电路。

    Photodetector for use in reading optical information symbols
    47.
    发明授权
    Photodetector for use in reading optical information symbols 失效
    用于读取光学信息符号的光电检测器

    公开(公告)号：US5506392A

    公开(公告)日：1996-04-09

    申请号：US314519

    申请日：1994-09-28

    申请人： Edward Barkan ,  David P. Goren ,  Joseph Katz ,  Yajun Li ,  Jerome Swartz ,  Thomas Mazz

    发明人： Edward Barkan ,  David P. Goren ,  Joseph Katz ,  Yajun Li ,  Jerome Swartz ,  Thomas Mazz

    IPC分类号： G06K7/015 ,  G06K7/10 ,  G06K7/14

    CPC分类号： G06K7/10881 ,  G06K7/10623 ,  G06K7/10801 ,  G06K7/14

    摘要： A bar code reader capable of working over a wider range of working angle and for a wider range of bar code densities, using improved optics and sensing elements. The optics and sensing elements and/or the associated circuitry are arranged to provide two channels of data derived from the scanned bar code. The two channels have differing resolutions. Analysis of the data from the two channels provides a single decoded result. As the working angle and density vary at least one of the resolutions will be appropriate for sensing all or most of the bar coded data. The data from the channel producing a valid result can be used, or if neither channel produces a valid result by itself, data from each channel can be analyzed and valid portions of the data from both channels combined to produce the single decoded result. The different resolution of the two channels can be provided using different size photodetection areas, e.g., small and large groups of active areas on a sensor array.

    摘要翻译： 使用改进的光学元件和传感元件，能够在更宽范围的工作角度和更宽范围的条形码密度下工作的条形码阅读器。 光学和感测元件和/或相关联的电路被布置成提供从扫描的条形码导出的两个通道的数据。 两个通道具有不同的分辨率。 来自两个通道的数据的分析提供单个解码结果。 由于工作角和密度变化，分辨率中的至少一个将适合于感测所有或大部分条形码数据。 可以使用来自产生有效结果的信道的数据，或者如果两个信道本身都没有产生有效结果，则可以分析来自每个信道的数据，并且将来自两个信道的数据的有效部分组合以产生单个解码结果。 可以使用不同尺寸的光电检测区域（例如传感器阵列上的小和大的有效区域组）来提供两个通道的不同分辨率。

    System for reading data on different planes of focus based on reflected light
    49.
    发明授权
    System for reading data on different planes of focus based on reflected light 失效
    基于反射光在不同平面上读取数据的系统

    公开(公告)号：US06328212B1

    公开(公告)日：2001-12-11

    申请号：US08482556

    申请日：1995-06-07

    申请人： Boris Metlitasky ,  Jerome Swartz ,  Edward Barkan

    发明人： Boris Metlitasky ,  Jerome Swartz ,  Edward Barkan

    IPC分类号： G06K710

    CPC分类号： G06K7/10881 ,  G06K7/10851 ,  G06K2207/1013 ,  Y10T307/799

    摘要： A system for reading data stored on a target in two different viewing planes includes a laser light source for generating a laser light beam and mirrors for focusing the laser beam on the two spaced apart viewing planes. Sensors detect the light reflected from each of the two viewing planes and generates an electrical signal indicative of the detected light. A signal processor, processes and decodes the data associated with the viewing plane on which the beam is in focus.

    摘要翻译： 用于读取存储在两个不同观看平面中的目标上的数据的系统包括用于产生激光束的激光光源和用于将激光束聚焦在两个间隔开的观看平面上的反射镜。 传感器检测从两个观察平面中的每一个反射的光，并产生指示检测到的光的电信号。 信号处理器处理和解码与光束在其上聚焦的观察平面相关联的数据。