Planar light illumination and imaging device with modulated coherent illumination that reduces speckle noise induced by coherent illumination
    23.
    发明申请
    Planar light illumination and imaging device with modulated coherent illumination that reduces speckle noise induced by coherent illumination 失效
    平面光照和具有调制相干照明的成像装置,可减少由相干照明引起的斑点噪声

    公开(公告)号:US20070138284A1

    公开(公告)日:2007-06-21

    申请号:US11603349

    申请日:2006-11-21

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10 H04N1/02865 H04N1/03

    摘要: An imaging device including at least one imaging array and image formation optics that provide a field of view corresponding to the imaging array. At least one illumination module (which includes at least one source of coherent illumination) produces planar light illumination that substantially overlaps the field of view corresponding to the imaging array. Illumination control circuitry modulates the power level of illumination produced by the source of coherent illumination during each photo-integration time period of the imaging array to thereby reduce speckle noise in images captured by the imaging array. The illumination control circuitry preferably modulates the power level of illumination by controlling the number and/or duration of time periods corresponding to different power levels of illumination produced by the source of coherent illumination during each photo-integration time period of the imaging array. Moreover, the illumination control circuitry preferably controls number and/or duration of the time periods such that substantially constant energy is produced by the source of coherent illumination over the time periods (thereby enabling the different speckle patterns produced over the timer periods to optimally cancel each other out).

    摘要翻译: 一种成像装置,包括至少一个成像阵列和图像形成光学器件,其提供对应于成像阵列的视场。 至少一个照明模块(其包括至少一个相干照明源)产生基本上与对应于成像阵列的视野重叠的平面光照射。 照明控制电路在成像阵列的每个光积分时间段期间调制由相干照明源产生的照明的功率电平,从而减少由成像阵列捕获的图像中的斑点噪声。 照明控制电路优选地通过控制对应于在成像阵列的每个光合成时间段期间由相干照明源产生的不同功率电平的时间段的数量和/或持续时间来调制照明的功率电平。 此外,照明控制电路优选地控制时间段的数量和/或持续时间,使得在时间周期上由相干照明源产生基本上恒定的能量(从而使得在定时器周期上产生的不同散斑图案最佳地抵消每个 另外出来)。

    Automatically-activated hand-supportable laser scanning bar code symbol reading system with data transmission activation switch
    25.
    发明申请
    Automatically-activated hand-supportable laser scanning bar code symbol reading system with data transmission activation switch 失效
    自动激活手持式激光扫描条码符号读取系统,带数据传输激活开关

    公开(公告)号:US20080041962A1

    公开(公告)日:2008-02-21

    申请号:US11890524

    申请日:2007-08-06

    IPC分类号: G06K7/10

    摘要: Disclosed is an automatically-activated code symbol reading system comprising a bar code symbol reading mechanism contained within a hand-supportable housing having a manually-activatable data transmission switch. During symbol reading operations, the bar code symbol reading mechanism automatically generates a visible laser scanning pattern for repeatedly reading one or more bar code symbols on an object during a bar code symbol reading cycle, and automatically generating a new symbol character data string in response to each bar code symbol read thereby. During system operation, the user visually aligns the visible laser scanning pattern with a particular bar code symbol on an object (e.g. product, bar code menu, etc.) so that the bar code symbol is scanned, detected and decoded in a cyclical manner. Each time the scanned bar code symbol is successfully read during a bar code symbol reading cycle, a new bar code symbol character string is produced, while an indicator light on the hand-supportable housing is actively driven. During the bar code symbol reading cycle, the user actuates the data transmission switch producing a data transmission control activation signal and enabling a currently or subsequently produced symbol character data string to be automatically selected and transmitted to the host system. By virtue of the present invention, automatically-activated hand-supportable bar code symbol readers are now able to accurately read, in an unprecedented manner, bar code symbols on bar code menus, consumer products positioned in crowded point-of-sale environments, and other objects requiring automatic identification and/or information access.

    摘要翻译: 公开了一种自动激活的代码符号读取系统,其包括包含在具有可手动激活的数据传输开关的手持式外壳内的条形码符号读取机构。 在符号读取操作期间,条形码符号读取机构自动生成可见激光扫描图案,用于在条形码符号读取周期期间重复读取对象上的一个或多个条形码符号,并响应于该条形码符号读取周期自动生成新的符号字符数据串 每个条码符号读取。 在系统操作期间,用户将可见激光扫描图案与物体上的特定条形码符号(例如产品,条形码菜单等)视觉对准,使得条形码符号以循环方式被扫描,检测和解码。 每次在条形码符号读取循环期间成功读取扫描的条形码符号时,产生新的条形码符号字符串,同时主动驱动手持式外壳上的指示灯。 在条形码符号读取周期期间,用户致动数据传输开关,产生数据传输控制激活信号,并使当前或随后产生的符号字符数据串被自动选择并发送到主机系统。 凭借本发明,自动激活的手持式条形码符号读取器现在能够以前所未有的方式准确地读取位于拥挤的销售点环境中的条形码菜单,消费品的条形码符号,以及 需要自动识别和/或信息访问的其他对象。

    INDICIA READER WITH FEEDBACK OF SCANNING THROUGHPUT
    29.
    发明申请
    INDICIA READER WITH FEEDBACK OF SCANNING THROUGHPUT 审中-公开
    INDICIA阅读器与扫描反馈的反馈

    公开(公告)号:US20120284091A1

    公开(公告)日:2012-11-08

    申请号:US13099751

    申请日:2011-05-03

    申请人: Stephen Colavito

    发明人: Stephen Colavito

    IPC分类号: G06Q10/00

    CPC分类号: G06Q10/06398

    摘要: A method of operating an indicia reader including the steps of: consecutively reading a plurality of information bearing indicia (IBI) over a period of time; determining an operator of the indicia reader's performance based on the rate at which the plurality of IBIs are being read over the period of time; and, providing feedback to an operator of the result of the determining step.

    摘要翻译: 一种操作标记读取器的方法,包括以下步骤:在一段时间内连续读取多个信息承载标记(IBI); 基于在一段时间内读取多个IBI的速率来确定标记读取器的性能的运算符; 以及向所述操作者提供所述确定步骤的结果的反馈。

    Scanner switched to active state by sensed movement in quiescent scanning mechanism
    30.
    发明授权
    Scanner switched to active state by sensed movement in quiescent scanning mechanism 有权
    扫描仪通过静止扫描机构中感测到的移动切换到活动状态

    公开(公告)号:US07832641B2

    公开(公告)日:2010-11-16

    申请号:US11753388

    申请日:2007-05-24

    摘要: The disclosure generally relates to a method and apparatus for determining if an optical scanner is moving. In one embodiment the method for sensing movement of an optical scanner comprises the steps of providing an oscillating system comprising a flexible member, a magnet coupled to the flexible member, a coil disposed within a magnetically effective distance from the magnet, and sense circuitry coupled to the coil; generating a first electrical signal from the oscillations of the flexible member; amplifying the generated electrical signal; analyzing the first electrical signal to determine if the generated signal is indicative of movement of the optical scanner.

    摘要翻译: 本发明一般涉及用于确定光学扫描仪是否正在移动的方法和装置。 在一个实施例中,用于感测光学扫描仪移动的方法包括以下步骤:提供振荡系统,该振荡系统包括柔性构件,耦合到柔性构件的磁体,设置在离磁体有效距离内的线圈,以及耦合到 线圈 从所述柔性构件的振荡产生第一电信号; 放大产生的电信号; 分析第一电信号以确定所生成的信号是否指示光学扫描器的移动。