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1. 发明授权

US06672506B2 Statistical sampling security methodology for self-scanning checkout system 有权
标题翻译：自动扫描结帐系统的统计抽样安全方法
公开(公告)号：US06672506B2
公开(公告)日：2004-01-06
申请号：US09977477
申请日：2001-10-15
申请人： Jerome Swartz , Stephen J. Shellhammer , Joseph Katz , Theo Pavlidis , John Woffinden , Judith Murrah , Edward Beadle , Raj Bridgelall
发明人： Jerome Swartz , Stephen J. Shellhammer , Joseph Katz , Theo Pavlidis , John Woffinden , Judith Murrah , Edward Beadle , Raj Bridgelall
IPC分类号： G06K1500
CPC分类号： G06Q30/06 , G07G1/0054 , G07G3/003
摘要： 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.
摘要翻译：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。

2. 发明授权

US6092725A Statistical sampling security methodology for self-scanning checkout system 失效
公开(公告)号：US6092725A
公开(公告)日：2000-07-25
申请号：US932779
申请日：1997-09-18
申请人： Jerome Swartz , Stephen J. Shellhammer , Joseph Katz , Theo Pavlidis , John Woffinden , Judith Murrah , Edward Beadle , Raj Bridgelall
发明人： Jerome Swartz , Stephen J. Shellhammer , Joseph Katz , Theo Pavlidis , John Woffinden , Judith Murrah , Edward Beadle , Raj Bridgelall
IPC分类号： G06Q30/00 , G07G1/00 , G07G3/00 , G06K15/00
CPC分类号： G06Q30/06 , G07G1/0054 , G07G3/003
摘要： 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.

3. 发明授权

US06853293B2 Wearable communication system 失效
标题翻译：可穿戴式通讯系统
公开(公告)号：US06853293B2
公开(公告)日：2005-02-08
申请号：US10253177
申请日：2002-09-24
申请人： Jerome Swartz , Michael Slutsky , Simon Bard , Stephen J. Shellhammer , James Connelly , Margaret L. Hetfield , Jacob Sharony , Michael A. Ramputi , Paul R. Poloniewicz , Joseph Katz , Robert E. Beach
发明人： Jerome Swartz , Michael Slutsky , Simon Bard , Stephen J. Shellhammer , James Connelly , Margaret L. Hetfield , Jacob Sharony , Michael A. Ramputi , Paul R. Poloniewicz , Joseph Katz , Robert E. Beach
IPC分类号： G06F1/16 , H04Q1/00
CPC分类号： G06F1/1698 , G06F1/163 , G06F1/1662 , G06F1/1684
摘要： A portable data input or computer system includes an input/output device such as a keyboard and a display, another data input device such as an optical bar code scanner, and a data processor module. To scan bar code type indicia, the operator points the scanner at the bar code and triggers the scanner to read the indicia. All the system components are distributed on an operator's body and together form a personal area system (PAS). Components may include a scanner or imager, a wrist unit, a headpiece including an eyepiece display, speaker and a microphone. Components within a particular PAS communicate with each other over a personal area network (PAN). Individual PASs may be combined into a network of PASs called a PAS cluster. PASs in a particular PAS cluster can communicate with each other over another wireless communication channel. Individual PAS can gain access to a Local Area Network (LAN) and/or a Wide Area Network (WAN) via an access point. Individual PASs can use devices, such as servers and PCs situated either on the LAN or the WAN to retrieve and exchange information. Individual PAS components can provide automatic speech and image recognition. PAS components may also act a telephone, a pager, or any other communication device having access to a LAN or a WAN. Transmission of digitized voice and/or video data can be achieved over an Internet link.
摘要翻译：便携式数据输入或计算机系统包括诸如键盘和显示器之类的输入/输出设备，诸如光学条形码扫描器的另一数据输入设备和数据处理器模块。要扫描条形码类型标记，操作员将扫描仪指向条形码并触发扫描仪读取标记。所有系统组件分布在操作员的身体上，并且一起形成个人区域系统（PAS）。组件可以包括扫描器或成像器，腕部单元，包括目镜显示器，扬声器和麦克风的头戴耳机。特定PAS中的组件通过个人区域网络（PAN）彼此通信。个人PAS可以组合成称为PAS集群的PAS网络。特定PAS集群中的PAS可以通过另一无线通信信道彼此通信。个人PAS可以通过接入点访问局域网（LAN）和/或广域网（WAN）。个人PAS可以使用设备，如位于LAN或WAN上的服务器和PC来检索和交换信息。个人PAS组件可以提供自动语音和图像识别。 PAS组件还可以对电话，寻呼机或具有访问LAN或WAN的任何其他通信设备起作用。数字化语音和/或视频数据的传输可以通过因特网链路实现。

4. 发明授权

US5635697A Method and apparatus for decoding two-dimensional bar code 失效
标题翻译：用于解码二维条形码的方法和装置
公开(公告)号：US5635697A
公开(公告)日：1997-06-03
申请号：US253694
申请日：1994-06-03
申请人： Stephen J. Shellhammer , Arman Nikzad , Jerome Swartz
发明人： Stephen J. Shellhammer , Arman Nikzad , Jerome Swartz
IPC分类号： G06F3/00 , G06F9/44 , G06K1/12 , G06K7/016 , G06K7/10 , G06K7/14 , G06K17/00 , G06K19/06 , H04N1/00
CPC分类号： G06K7/1093 , G06F3/002 , G06K1/126 , G06K19/06037 , G06K7/0166 , G06K7/10722 , G06K7/14 , G06K7/1417 , G06K7/1443 , G06K7/1456 , G06K2019/06253
摘要： A method and apparatus for decoding a two-dimensional bar code symbol using a charge-coupled device (CCD) camera, charge-modulation device (CMD) camera, or other bar code reading device such as a hand-held reader, light pen or wand, scan mouse, or stationary laser scanner. The CCD/CMD camera or reading device optically images the bar code symbol to obtain digital image data, which is stored in a memory. The location and orientation of the two-dimensional bar code
摘要翻译：一种使用电荷耦合器件（CCD）照相机，电荷调制装置（CMD）照相机或诸如手持读取器，光笔或其他条形码读取装置的二维条形码符号进行解码的方法和装置魔杖，扫描鼠标或固定式激光扫描仪。 CCD / CMD相机或读取装置对条形码符号进行光学图像以获得存储在存储器中的数字图像数据。二维条码的位置和方向

5. 发明授权

US5523552A Method and apparatus to scan randomly oriented two-dimensional bar code symbols 失效
标题翻译：扫描随机取向的二维条形码符号的方法和装置
公开(公告)号：US5523552A
公开(公告)日：1996-06-04
申请号：US327531
申请日：1994-10-19
申请人： Stephen J. Shellhammer , Joseph Katz , Ron Goldman
发明人： Stephen J. Shellhammer , Joseph Katz , Ron Goldman
IPC分类号： G06K7/015 , G06K7/10
CPC分类号： G06K7/10871
摘要： Disclosed are methods and apparatus for automatically aligning the field of view of a two dimensional bar code reading device with a randomly oriented two-dimensional bar code symbol wherein the symbol comprises a unique pattern located contiguously on at least one side thereof. One method is implemented in a laser based embodiment by scanning the symbol with a laser scan line extending through the border pattern (which is a PDF417 start codeword), measuring the length of the start codeword detected by the scan line, and rotating the laser scan line by a predetermined amount. This is repeated for a predetermined number of times, and the rotation angle at which the codeword length is smallest is determined by performing a least squares fit of the measured codeword lengths and rotation angles. The raster pattern is then rotated to the determined rotation angle so as to be aligned with the symbol for subsequent scanning and decoding. In the alternative, a sequential least squares fit can be performed after each start codeword measurement is made rather than waiting for all measurements to be made. An alternative embodiment implements a discrete radial CCD array comprised of linear CCD arrays which enables angular scanning of the target symbol, wherein a two-dimensional CCD array is then rotated either physically or logically by the calculated skew angle in order to be aligned with the symbol for imaging and subsequent processing and decoding.
摘要翻译：公开了用于将二维条形码读取装置的视野自动对准随机取向的二维条形码符号的方法和装置，其中符号包括在其至少一侧上连续定位的唯一图案。一种方法在基于激光的实施例中通过用延伸穿过边界图案的激光扫描线（其是PDF417起始码字）扫描符号，测量由扫描线检测的起始码字的长度，以及旋转激光扫描行预定量。这被重复预定次数，并且通过执行测量的码字长度和旋转角度的最小二乘拟合来确定码字长度最小的旋转角度。然后将光栅图案旋转到所确定的旋转角度，以便与用于后续扫描和解码的符号对齐。在替代方案中，可以在进行每个开始码字测量之后执行顺序的最小二乘拟合，而不是等待进行所有测量。一个替代实施例实现了由线性CCD阵列组成的离散径向CCD阵列，其能够对目标符号进行角度扫描，其中二维CCD阵列然后物理或逻辑地旋转所计算的偏斜角，以便与符号对齐用于成像和后续处理和解码。

6. 发明授权

US5138140A Signature capture using electro-optical scanning 失效
标题翻译：使用电光扫描进行签名拍摄
公开(公告)号：US5138140A
公开(公告)日：1992-08-11
申请号：US571510
申请日：1990-08-22
申请人： Bish Siemiatkowski , Ynjiun P. Wang , Stephen J. Shellhammer , Joseph Katz , Timothy Williams
发明人： Bish Siemiatkowski , Ynjiun P. Wang , Stephen J. Shellhammer , Joseph Katz , Timothy Williams
IPC分类号： G06K7/10 , G06K9/22 , G06K9/32 , G06K19/14 , H04N1/047
CPC分类号： H04N1/047 , G06K19/14 , G06K9/3216 , G06K2209/01 , H04N2201/0471
摘要： Two-dimensional information such as a written signature can be captured and subsequently reconstructed by using an electro-optical scanner. A multi-row preamble code and a multi-row postamble code flank the signature, and each code has a row identifier for identifying which row is being scanned by a scan line emitted by the scanner, as well as start/stop data for identifying when each scan line traverses the boundaries of a space containing the signature.
摘要翻译：可以通过使用电光扫描器来捕获并记录诸如书写签名的二维信息。签名侧面的多行前导码和多行后验码，并且每个代码具有行标识符，用于识别由扫描仪发射的扫描线正在扫描哪一行，以及用于识别何时启动/停止数据每个扫描线遍历包含签名的空间的边界。

7. 发明授权

US08626056B2 Adjustable transmitter for privacy protection of content broadcast from a transmitting device to a receiving device 失效
标题翻译：可调节发射机，用于从发射设备广播到接收设备的内容的隐私保护
公开(公告)号：US08626056B2
公开(公告)日：2014-01-07
申请号：US12834342
申请日：2010-07-12
申请人： Yong Jin Kim , Stephen J. Shellhammer , Vijayalakshmi R. Raveendran , Wenyi Zhang , Ahmed K. Sadek , Yu A. Wang
发明人： Yong Jin Kim , Stephen J. Shellhammer , Vijayalakshmi R. Raveendran , Wenyi Zhang , Ahmed K. Sadek , Yu A. Wang
IPC分类号： H04H20/71
CPC分类号： H04N21/43637 , G09G5/006 , H04L65/4076 , H04L65/80 , H04N21/4122
摘要： Transmitting devices facilitate privacy protection of content broadcasted from the transmitting device to a receiving device without the need to modify the receiving device. A transmitting device may be adapted to acquire content, such as audio and/or video data, to be broadcasted by the transmitter for reception and use by a receiving device. A transmission range is selected to define a distance for broadcasting the content from the transmission device for reception and use by a receiving device. A frequency is also selected to be used for broadcasting the content. With the transmission range and frequency selected, the transmitting device may broadcast the content according to the selected transmission range and frequency.
摘要翻译：传输设备促进从发送设备广播到接收设备的内容的隐私保护，而不需要修改接收设备。发送设备可以适于获取要由发射机广播的内容，例如音频和/或视频数据，以便接收设备接收和使用。选择传输范围以定义用于从发送设备广播内容的距离，以用于接收设备的接收和使用。还选择用于广播内容的频率。在选择了传输范围和频率的情况下，发射设备可以根据所选择的传输范围和频率来广播内容。

8. 发明申请

US20130195089A1 SUPER LONG RANGE (SLR) DEVICES AND LOW RATE ENABLER (LRE) DEVICES 审中-公开
标题翻译：超长距离（SLR）设备和低速启动器（LRE）设备
公开(公告)号：US20130195089A1
公开(公告)日：2013-08-01
申请号：US13362934
申请日：2012-01-31
申请人： Rahul Tandra , Santosh P. Abraham , Stephen J. Shellhammer
发明人： Rahul Tandra , Santosh P. Abraham , Stephen J. Shellhammer
IPC分类号： H04W4/00 , H04W84/12
CPC分类号： H04W16/14 , H04W28/06 , H04W74/0816 , H04W88/10
摘要： A method includes generating, at a low rate enabler (LRE) device, a packet including a preamble having a legacy portion and a super long range (SLR) portion. The legacy portion includes at least one bit to indicate a presence of the SLR portion to at least one SLR-compatible device. The method also includes transmitting the packet to a plurality of devices includes the at least one SLR-compatible device.
摘要翻译：一种方法包括在低速率启动器（LRE）装置中生成包括具有传统部分和超长距离（SLR）部分的前同步码的分组。遗留部分包括至少一个位以指示SLR部分到达至少一个SLR兼容设备的存在。该方法还包括将分组发送到包括至少一个SLR兼容设备的多个设备。

9. 发明申请

US20130059614A1 METHODS AND APPARATUS FOR IDENTIFYING AND/OR SELECTING CHANNELS 有权
标题翻译：识别和/或选择通道的方法和装置
公开(公告)号：US20130059614A1
公开(公告)日：2013-03-07
申请号：US13226101
申请日：2011-09-06
申请人： Sreeram Kannan , Ahmed K. Sadek , Stephen J. Shellhammer , Saurabh Tavildar , Nilesh Khude
发明人： Sreeram Kannan , Ahmed K. Sadek , Stephen J. Shellhammer , Saurabh Tavildar , Nilesh Khude
IPC分类号： H04W72/02
CPC分类号： H04W72/06 , H04W8/005
摘要： A decentralized approach to peer discovery channel selection is used in some embodiments. In some such embodiments, a mobile wireless terminal supporting a peer to peer signaling protocol, independently determines what channels to use for peer discovery without a central controller indicating the channel or channels to be used. Assuming channels are of a suitable quality, the channels having the best quality need not be identified, with channel selection being made on a predetermined channel ordering basis from those with suitable quality. Different wireless communications devices in the system use the same peer discovery channel selection process making it likely that the same channel or channels will tend to be picked to be used for peer discovery. Other embodiments are directed to implementing a centralized approach to peer discovery channel selection in which a central controller or base station selects channels to be used for peer discovery signaling.
摘要翻译：在一些实施例中使用分布式对等体发现信道选择方法。在一些这样的实施例中，支持对等信令协议的移动无线终端独立地确定用于对等体发现的哪些信道，而不指示要使用的信道或信道的中央控制器。假设信道具有合适的质量，则不需要识别具有最佳质量的信道，其中信道选择是从具有适当质量的信道选择进行的。系统中的不同的无线通信设备使用相同的对等体发现信道选择过程，使得可能相同的信道或信道将倾向于被选择用于对等体发现。其他实施例涉及实现对等体发现信道选择的集中式方法，其中中央控制器或基站选择要用于对等体发现信令的信道。

10. 发明申请

US20110045781A1 SENSING WIRELESS COMMUNICATIONS IN TELEVISION FREQUENCY BANDS 有权
标题翻译：电视频段无线通信
公开(公告)号：US20110045781A1
公开(公告)日：2011-02-24
申请号：US12858334
申请日：2010-08-17
申请人： Stephen J. Shellhammer , Ahmed K. Sadek , Wenyi Zhang
发明人： Stephen J. Shellhammer , Ahmed K. Sadek , Wenyi Zhang
IPC分类号： H04B17/00
CPC分类号： H04B17/0057 , H04B17/26 , H04B17/318 , H04B17/382
摘要： In general, techniques are described for sensing wireless communications in television frequency bands, which may be implemented by a sensing device comprising a sensing unit, a power spectral density (PSD) estimation unit, a filter unit, a candidate selection unit, an analysis unit and a decision unit. The sensing unit senses a signal in the television frequencies bands. The PSD estimation unit calculates an estimate of a PSD for the sensed signal. The filter unit filters the estimated PSD. The candidate selection unit analyzes the filtered PSD to identify a candidate frequency representative of a potentially in use frequency. The analysis unit computes a test statistic for the candidate frequency. The decision unit compares the test statistic to a threshold to identify whether the candidate frequencies is actively in use by wireless communication devices.
摘要翻译：通常，描述了用于感测电视频带中的无线通信的技术，其可以由包括感测单元，功率谱密度（PSD）估计单元，滤波器单元，候选选择单元，分析单元和决策单位。感测单元感测电视频带中的信号。 PSD估计单元计算感测信号的PSD的估计。过滤器单元过滤估计的PSD。候选选择单元分析经滤波的PSD以识别代表潜在使用频率的候选频率。分析单元计算候选频率的测试统计量。决策单元将测试统计量与阈值进行比较，以识别候选频率是否被无线通信设备主动使用。

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