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    • 44. 发明授权
      US5663549A System for reading a symbol by activitating a liquid crystal device to control a scanning path 失效
    • System for reading a symbol by activitating a liquid crystal device to control a scanning path
    • 通过激活液晶装置来控制扫描路径来读取符号的系统
    • US5663549A
    • 1997-09-02
    • US459467
    • 1995-06-02
    • Joseph Katz , Boris Metlitsky , Emanuel Marom
    • Joseph Katz , Boris Metlitsky , Emanuel Marom
    • G06K7/10 , G06K7/14
    • G06K7/1473 , G06K7/10574 , G06K7/10673 , G06K7/10702 , G06K7/14 , G06K7/1417
    • A bar code scanner employs an electronic means for causing the light beam to scan a bar code symbol, rather than using a mechanical device to generate the scan. A linear array of light sources, activated one at a time in a regular sequence, may be imaged upon the bar code symbol to simulate a scanned beam. Instead of a single linear array of light sources, a multiple-line array may be employed, producing multiple scan lines. The multiple scan lines may be activated in sequence, or activated simultaneously (time-division or frequency-division multiplexed. The multiple scan lines can provide signal enhancement, noise reduction or fault correction if directed to the same bar code pattern. Multiple scan lines may be generated using a single light source and a beam splitter, with mechanical scanning, as well as by the sequentially-activated light sources. Multiple simultaneous scan lines may be employed to generate a raster scan at lower mechanical scan frequency. In another embodiment, a tunable laser may be employed to provide a scan without moving parts; a laser beam from the tunable laser is reflected from a diffraction grating that produces an angular deviation dependent upon the wavelength of the laser output. As the frequency of the tunable laser is varied in some selected pattern, the laser beam will scan accordingly.
    • 条形码扫描仪采用电子装置，用于使光束扫描条形码符号，而不是使用机械装置来产生扫描。 可以在条形码符号上成像一个以规则顺序一次激活的光源的线性阵列，以模拟扫描光束。 代替光源的单个线性阵列，可以采用多行阵列，产生多条扫描线。 多个扫描线可以被顺序激活或同时激活（时分或频分复用，多个扫描线可以提供信号增强，降噪或故障校正，如果指向相同的条形码图案，多个扫描线可以 使用单个光源和分束器，通过机械扫描以及由顺序激活的光源产生多个同时扫描线可以以较低的机械扫描频率产生光栅扫描，在另一个实施例中， 可调谐激光器可用于提供无移动部件的扫描;来自可调谐激光器的激光束从衍射光栅反射，该衍射光栅产生取决于激光输出波长的角度偏差，因为可调激光器的频率在 一些选定的图案，激光束将相应扫描。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 45. 发明授权
      US5258605A Scan generators for bar code reader using linear array of lasers 失效
    • Scan generators for bar code reader using linear array of lasers
    • 使用激光线阵列的条形码阅读器的扫描发生器
    • US5258605A
    • 1993-11-02
    • US864367
    • 1992-04-06
    • Boris Metlitsky , Joseph Katz , Dean Gousgounis , Emanuel Marom
    • Boris Metlitsky , Joseph Katz , Dean Gousgounis , Emanuel Marom
    • G06K7/10 , G06K7/14 , G06K9/22
    • G06K7/1473 , G06K7/10574 , G06K7/10673 , G06K7/10702 , G06K7/14 , G06K7/1417
    • A bar code scanner employs an electronic means for causing the light beam to scan a bar code symbol, rather than using a mechanical device to generate the scan. A linear array of light sources, activated one at a time in a regular sequence, may be imaged upon the bar code symbol to simulate a scanned beam. Instead of a single linear array of light sources, a multiple-line array may be employed, producing multiple scan lines. The multiple scan lines may be activated in sequence, or activated simultaneously (time-division or frequency-division multiplexed. The multiple scan lines can provide signal enhancement, noise reduction or fault correction if directed to the same bar code pattern. Multiple scan lines may be generated using a single light source and a beam splitter, with mechanical scanning, as well as by the sequentially-activated light suorces. Multiple simultaneous scan lines may be employed to generate a raster scan at lower mechanical scan frequency. In another embodiment, a tunable laser may be employed to provide a scan without moving parts; a laser beam from the tunable laser is reflected from a diffraction grating that produces an angular deviation dependent upon the wavelength of the laser output. As the frequency of the tunable laser is varied in some selected pattern, the laser beam will scan accordingly.
    • 条形码扫描仪采用电子装置，用于使光束扫描条形码符号，而不是使用机械装置来产生扫描。 可以在条形码符号上成像一个以规则顺序一次激活的光源的线性阵列，以模拟扫描光束。 代替光源的单个线性阵列，可以采用多行阵列，产生多条扫描线。 多个扫描线可以被顺序激活或同时激活（时分或频分复用，多个扫描线可以提供信号增强，降噪或故障校正，如果指向相同的条形码图案，多个扫描线可以 使用单个光源和分束器，通过机械扫描以及顺序激活的光源产生多个同时扫描线可以以较低的机械扫描频率产生光栅扫描，在另一个实施例中， 可调谐激光器可用于提供无移动部件的扫描;来自可调谐激光器的激光束从衍射光栅反射，该衍射光栅产生取决于激光输出波长的角度偏差，因为可调激光器的频率在 一些选定的图案，激光束将相应扫描。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 47. 发明授权
      US06672506B2 Statistical sampling security methodology for self-scanning checkout system 有权
    • Statistical sampling security methodology for self-scanning checkout system
    • 自动扫描结帐系统的统计抽样安全方法
    • US06672506B2
    • 2004-01-06
    • US09977477
    • 2001-10-15
    • Jerome Swartz , Stephen J. Shellhammer , Joseph Katz , Theo Pavlidis , John Woffinden , Judith Murrah , Edward Beadle , Raj Bridgelall
    • Jerome Swartz , Stephen J. Shellhammer , Joseph Katz , Theo Pavlidis , John Woffinden , Judith Murrah , Edward Beadle , Raj Bridgelall
    • G06K1500
    • G06Q30/06 , G07G1/0054 , G07G3/003
    • A statistical basis for use in a self-scanning checkout system determines how many items to check in a shopper's shopping cart for incorrect or missing scans as well as which particular or types of items to check to determine if they were properly scanned, if the shopper is determined to be audited. The present invention does not audit every customer, but rather determines whether a given shopper or customer is to be audited on a given shopping trip based upon obtaining a minimum checkout loss for such customer. The methodology determines how many items to check for a given shopper as well as which particular items to check for that shopper. The following factors attempt to model the real world of shopping and may be considered, alone or in varying combinations, in determining the number of items to check for a particular shopping transaction: shopper frequency; queue length; prior audit history; store location; time of day, day of week, date of year; number of times items are returned to shelf during shopping; dwell time between scans; customer loyalty; store shopping activity and other factors. Using statistical decision theory for auditing policies a minimum loss per shopper transaction improves the security and reduces the labor of self-check out without being too intrusive to customers.
    • 用于自动扫描结帐系统的统计基础确定购物者购物车中检查不正确或缺少扫描的物品以及要检查的哪些特定或类型的物品，以确定它们是否被正确扫描，如果购物者 决定被审计。 本发明不审核每个客户，而是基于获得这样的客户的最小结账损失来确定给定的购物者或客户是否将在给定的购物行程上被审核。 该方法确定了为特定购物者检查多少项目，以及哪些特定项目来检查购物者。 以下因素试图建模购物的真实世界，并且可以单独地或以不同的组合来考虑确定特定购物交易的项目数量：购物者频率; 队列长度 以前的审计历史; 商店位置; 时间，星期几，日期; 商品在购物时返回货架的次数; 停留扫描之间的时间; 客户忠诚度; 商店购物活动等因素。 使用统计决策理论对审计政策，每个购物者交易的最小损失提高了安全性，减少了自我检查的劳动，而不会太多侵入客户。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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