公开(公告)号：US5635697A

公开(公告)日：1997-06-03

申请号：US253694

申请日：1994-06-03

Applicant: Stephen J. Shellhammer ,  Arman Nikzad ,  Jerome Swartz

Inventor： Stephen J. Shellhammer ,  Arman Nikzad ,  Jerome Swartz

IPC: G06F3/00 ,  G06F9/44 ,  G06K1/12 ,  G06K7/016 ,  G06K7/10 ,  G06K7/14 ,  G06K17/00 ,  G06K19/06 ,  H04N1/00

CPC classification number: G06K7/1093 ,  G06F3/002 ,  G06K1/126 ,  G06K19/06037 ,  G06K7/0166 ,  G06K7/10722 ,  G06K7/14 ,  G06K7/1417 ,  G06K7/1443 ,  G06K7/1456 ,  G06K2019/06253

Abstract: 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

Abstract translation: 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

公开(公告)号：US5319181A

公开(公告)日：1994-06-07

申请号：US851493

申请日：1992-03-16

Applicant: Stephen J. Shellhammer ,  Ming-Hua Chen ,  Arman Nikzad

Inventor： Stephen J. Shellhammer ,  Ming-Hua Chen ,  Arman Nikzad

IPC: G06K7/016 ,  G06K7/10 ,  G06K19/06 ,  G06K9/00

CPC classification number: G06K7/1093 ,  G06K19/06037 ,  G06K7/0166 ,  G06K7/1417 ,  G06K7/1443 ,  G06K7/1456

Abstract: A method and apparatus for decoding a two-dimensional bar code symbol using a charge-coupled device (CCD) camera or a charge-modulation device (CMD) camera. The CCD/CMD camera takes pictures of the symbol and the picture is converted into digital data. The location and orientation of the two-dimensional bar code symbol is determined and verified. Defects and damages on the symbol are detected and corrected. The symbol is scanned to read the codewords of the two-dimensional bar code symbol.

Abstract translation: 一种使用电荷耦合器件（CCD）照相机或电荷调制装置（CMD）照相机对二维条形码符号进行解码的方法和装置。 CCD / CMD摄像机拍摄符号图像并将图像转换为数字数据。 确定并验证二维条形码符号的位置和方向。 检测并纠正符号的缺陷和损坏。 扫描符号以读取二维条形码符号的码字。

公开(公告)号：US06672506B2

公开(公告)日：2004-01-06

申请号：US09977477

申请日：2001-10-15

Applicant: Jerome Swartz ,  Stephen J. Shellhammer ,  Joseph Katz ,  Theo Pavlidis ,  John Woffinden ,  Judith Murrah ,  Edward Beadle ,  Raj Bridgelall

Inventor： Jerome Swartz ,  Stephen J. Shellhammer ,  Joseph Katz ,  Theo Pavlidis ,  John Woffinden ,  Judith Murrah ,  Edward Beadle ,  Raj Bridgelall

IPC: G06K1500

CPC classification number: G06Q30/06 ,  G07G1/0054 ,  G07G3/003

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06853293B2

公开(公告)日：2005-02-08

申请号：US10253177

申请日：2002-09-24

Applicant: 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

Inventor： 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: G06F1/16 ,  H04Q1/00

CPC classification number: G06F1/1698 ,  G06F1/163 ,  G06F1/1662 ,  G06F1/1684

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US6092725A

公开(公告)日：2000-07-25

申请号：US932779

申请日：1997-09-18

Applicant: Jerome Swartz ,  Stephen J. Shellhammer ,  Joseph Katz ,  Theo Pavlidis ,  John Woffinden ,  Judith Murrah ,  Edward Beadle ,  Raj Bridgelall

Inventor： Jerome Swartz ,  Stephen J. Shellhammer ,  Joseph Katz ,  Theo Pavlidis ,  John Woffinden ,  Judith Murrah ,  Edward Beadle ,  Raj Bridgelall

IPC: G06Q30/00 ,  G07G1/00 ,  G07G3/00 ,  G06K15/00

CPC classification number: G06Q30/06 ,  G07G1/0054 ,  G07G3/003

Abstract: 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.

公开(公告)号：US08626056B2

公开(公告)日：2014-01-07

申请号：US12834342

申请日：2010-07-12

Applicant: Yong Jin Kim ,  Stephen J. Shellhammer ,  Vijayalakshmi R. Raveendran ,  Wenyi Zhang ,  Ahmed K. Sadek ,  Yu A. Wang

Inventor： Yong Jin Kim ,  Stephen J. Shellhammer ,  Vijayalakshmi R. Raveendran ,  Wenyi Zhang ,  Ahmed K. Sadek ,  Yu A. Wang

IPC: H04H20/71

CPC classification number: H04N21/43637 ,  G09G5/006 ,  H04L65/4076 ,  H04L65/80 ,  H04N21/4122

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130195089A1

公开(公告)日：2013-08-01

申请号：US13362934

申请日：2012-01-31

Applicant: Rahul Tandra ,  Santosh P. Abraham ,  Stephen J. Shellhammer

Inventor： Rahul Tandra ,  Santosh P. Abraham ,  Stephen J. Shellhammer

IPC: H04W4/00 ,  H04W84/12

CPC classification number: H04W16/14 ,  H04W28/06 ,  H04W74/0816 ,  H04W88/10

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130059614A1

公开(公告)日：2013-03-07

申请号：US13226101

申请日：2011-09-06

Applicant: Sreeram Kannan ,  Ahmed K. Sadek ,  Stephen J. Shellhammer ,  Saurabh Tavildar ,  Nilesh Khude

Inventor： Sreeram Kannan ,  Ahmed K. Sadek ,  Stephen J. Shellhammer ,  Saurabh Tavildar ,  Nilesh Khude

IPC: H04W72/02

CPC classification number: H04W72/06 ,  H04W8/005

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110045781A1

公开(公告)日：2011-02-24

申请号：US12858334

申请日：2010-08-17

Applicant: Stephen J. Shellhammer ,  Ahmed K. Sadek ,  Wenyi Zhang

Inventor： Stephen J. Shellhammer ,  Ahmed K. Sadek ,  Wenyi Zhang

IPC: H04B17/00

CPC classification number: H04B17/0057 ,  H04B17/26 ,  H04B17/318 ,  H04B17/382

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110021167A1

公开(公告)日：2011-01-27

申请号：US12618533

申请日：2009-11-13

Applicant: Stephen J. Shellhammer

Inventor： Stephen J. Shellhammer

IPC: H04B17/00

CPC classification number: H04W16/14 ,  H04B7/0837 ,  H04B17/26 ,  H04B17/382 ,  H04W72/085

Abstract: Methods and apparatus for sensing features of a signal in a wireless communication system are disclosed. The disclosed methods and apparatus sense signal features by determining a number of spectral density estimates, where each estimate is derived based on reception of the signal by a respective antenna in a system with multiple sensing antennas. The spectral density estimates are then combined, and the signal features are sensed based on the combination of the spectral density estimates.

Abstract translation: 公开了用于感测无线通信系统中的信号特征的方法和装置。 所公开的方法和装置通过确定频谱密度估计的数量来感测信号特征，其中每个估计是基于在具有多个感测天线的系统中的相应天线的信号的接收而导出的。 然后组合频谱密度估计，并且基于频谱密度估计的组合来感测信号特征。