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1. 发明申请

US20060211372A1 Coexistence techniques in wireless networks 审中-公开
公开(公告)号：US20060211372A1
公开(公告)日：2006-09-21
申请号：US11416140
申请日：2006-05-02
申请人： Stephen Shellhammer , Jacob Sharony , Anthony Biuso , Sean Connolly , William Sackett , Joseph Cabana , Patrick Tilley , Robert Beach
发明人： Stephen Shellhammer , Jacob Sharony , Anthony Biuso , Sean Connolly , William Sackett , Joseph Cabana , Patrick Tilley , Robert Beach
IPC分类号： H04B7/00 , H04M1/00
CPC分类号： H04W16/14 , Y02D70/10 , Y02D70/14
摘要： Techniques are provided for frequency coordination among two different wireless network protocols, such as the IEEE 802.11 and Bluetooth protocols, operating in proximity with one another. Coordination is accomplished by the use of a first radio transceiver operating in accordance with a first communication protocol (which may be the 802.11 protocol) and using a frequency band (which may be the 2.4 GHz band), a base station connected to a wired network and operating in accordance with the first communication protocol, a second radio transceiver operating in accordance with a second communication protocol (which may be the Bluetooth protocol) and using the frequency band, and a coordinator associated with the base station for, in turn, activating the first radio transceiver, deactivating the first radio transceiver, activating the second radio transceiver, and deactivating the second radio transceiver.

2. 发明授权

US07047051B2 Method of and arrangement for minimizing power consumption and data latency of an electro-optical reader in a wireless network 有权
公开(公告)号：US07047051B2
公开(公告)日：2006-05-16
申请号：US10280557
申请日：2002-10-25
申请人： William Sackett , Adam Levine , Sean Connolly , Anthony Biuso , Stephen Shellhammer , Frank Boccuzzi , Kevin Cordes
发明人： William Sackett , Adam Levine , Sean Connolly , Anthony Biuso , Stephen Shellhammer , Frank Boccuzzi , Kevin Cordes
IPC分类号： H04B1/38
CPC分类号： H04W52/0229 , Y02D70/144 , Y02D70/26
摘要： Battery power consumption and data transfer latency of an electro-optical reader in a wireless network are minimized by turning a radio off in a default state, and by turning the radio on only after the reader has generated data to be transferred along the network.

3. 发明申请

US20150229432A1 FULL-DUPLEX ETHERNET COMMUNICATIONS OVER COAXIAL LINKS USING TIME-DIVISION DUPLEXING 审中-公开
标题翻译：全双工以太网通信使用时间双工同轴连接
公开(公告)号：US20150229432A1
公开(公告)日：2015-08-13
申请号：US14391664
申请日：2012-05-09
申请人： Stephen Shellhammer , Juan Montojo , Andrea Garavaglia , Christian Pietsch , Nicola Varanese , Honger Nie
发明人： Stephen Shellhammer , Juan Montojo , Andrea Garavaglia , Christian Pietsch , Nicola Varanese , Honger Nie
IPC分类号： H04J14/02 , H04L27/26
CPC分类号： H04J14/0239 , H04L5/0037 , H04L5/02 , H04L12/2801 , H04L12/2892 , H04L27/2601 , H04Q11/0067
摘要： A coax line terminal coupled to a plurality of coax network units by a coax plant uses time-division duplexing to communicate with the coax network units. In the coax line terminal, a control signal is repeatedly asserted and de-asserted. When the control signal is de-asserted, data are transmitted from the coax line terminal to the plurality of coax network units on a specified frequency band. When the control signal is asserted, transmission of the data ceases and data are received from respective coax network units on the specified frequency band.
摘要翻译：通过同轴电缆工厂耦合到多个同轴电缆网络单元的同轴线路终端使用时分双工来与同轴电缆网络单元进行通信。在同轴线路终端中，控制信号被重复断言和解除断言。当控制信号被取消断言时，数据从同轴线路终端发送到指定频带上的多个同轴电缆网络单元。当控制信号被断言时，数据的传输停止，并且在指定的频带上从相应的同轴电缆网络单元接收数据。

4. 发明授权

US6164540A Optical scanners 失效
标题翻译：光学扫描仪
公开(公告)号：US6164540A
公开(公告)日：2000-12-26
申请号：US651613
申请日：1996-05-22
申请人： Raj Bridgelall , Edward Barkan , Stephen Shellhammer , Joseph Campanelli , Joseph Katz , Yajun Li , Daniel R. McGlynn
发明人： Raj Bridgelall , Edward Barkan , Stephen Shellhammer , Joseph Campanelli , Joseph Katz , Yajun Li , Daniel R. McGlynn
IPC分类号： G06K7/10 , G06K7/14
CPC分类号： G06K7/10851 , G06K7/14 , G06K7/1452 , G06K7/1478
摘要： An optical scanner with plural scan beam generation. Scan angle stress is configured in the beam generation.
摘要翻译：具有多个扫描光束产生的光学扫描器。在光束产生中配置扫描角应力。

5. 发明授权

US5734152A Optical scanners and signal processors therefor 失效
标题翻译：光学扫描仪和信号处理器
公开(公告)号：US5734152A
公开(公告)日：1998-03-31
申请号：US454830
申请日：1995-05-31
申请人： David Goren , Stephen Shellhammer , Harry Kuchenbrod , Donna Pandolfo , Gary Serbin , Guy Cipriani , Edward Barkan
发明人： David Goren , Stephen Shellhammer , Harry Kuchenbrod , Donna Pandolfo , Gary Serbin , Guy Cipriani , Edward Barkan
IPC分类号： G06K7/10 , G06K7/14
CPC分类号： G06K7/10851 , G06K7/14 , G06K7/1452 , G06K7/1478
摘要： An optical scanning system is provided for producing a signal representative of a spatial distribution of indicia having different degrees of reflectivity to light, such as a bar code. The system includes an optical scanner for scanning beam of light over the spatial distribution of indicia and for producing an electrical signal corresponding to changes in the degree of reflectivity of the indicia. A digitizer, responsive to detections in a predetermined characteristic of the produced electrical signal is provided. The digitizer converts the detections into digital words, such digital signals having a plurality of bits. The digitizer includes a timing generation circuit for producing a pulse in response to each one of the detections with a time duration representative of the degree of reflectivity of the indicia as the beam of light. A decoder converts the time duration of the pulse into the digital word having a plurality of bits. An enhancement filter is also disclosed. The enhancement filter modifies pulses produced by a differentiator circuit used in the scanner. Such modification includes increasing the rise time, and peak level of, the pulses produced by the differentiator circuit 24.
摘要翻译：提供了一种光学扫描系统，用于产生表示具有不同光反射度的标记的空间分布的信号，例如条形码。该系统包括用于在标记的空间分布上扫描光束并用于产生对应于标记的反射度的变化的电信号的光学扫描器。提供了响应于所产生的电信号的预定特性中的检测的数字转换器。数字转换器将检测器转换为数字字，这样的数字信号具有多个位。数字转换器包括定时产生电路，用于响应于每个检测产生脉冲，其中持续时间代表标记作为光束的反射度。解码器将脉冲的持续时间转换为具有多个位的数字字。还公开了增强滤波器。增强滤波器修改由扫描器中使用的微分电路产生的脉冲。这种修改包括增加由微分电路24产生的脉冲的上升时间和峰值电平。

6. 发明申请

US20050015618A1 System and method for establishing authenticated wireless connection between mobile unit and host 有权
标题翻译：用于在移动单元和主机之间建立认证无线连接的系统和方法
公开(公告)号：US20050015618A1
公开(公告)日：2005-01-20
申请号：US10600029
申请日：2003-06-20
申请人： Gary Schneider , Stephen Shellhammer
发明人： Gary Schneider , Stephen Shellhammer
IPC分类号： H04L9/00 , H04L12/56 , H04L29/06
CPC分类号： H04W12/06 , H04W76/10 , H04W84/18
摘要： Described is a method and system for establishing an authenticated wireless communication (e.g., using Bluetooth technology) between first and second mobile devices. The first device (e.g., a mobile barcode scanner) sends a signal to establish a wireless communication with the second device. The first device includes a data capturing arrangement (“DCA”) as an only input device interface with a user thereof. The second device initiates an authentication process by requesting the first device to obtain a PIN code from the user. Once the first device obtains the PIN code from the user via the DCA, a pairing process is performed to compare the PIN code to entries in a database of authorized PIN codes. When the pairing process has been successfully completed, a link key is generated to establish the authenticated wireless communication between the first and second devices.
摘要翻译：描述了用于在第一和第二移动设备之间建立经认证的无线通信（例如，使用蓝牙技术）的方法和系统。第一设备（例如，移动条形码扫描器）发送信号以建立与第二设备的无线通信。第一设备包括作为与用户的唯一输入设备接口的数据捕获布置（“DCA”）。第二设备通过请求第一设备从用户获取PIN码来发起认证过程。一旦第一设备经由DCA从用户获得PIN码，则执行配对处理以将PIN码与授权PIN码的数据库中的条目进行比较。当配对过程成功完成时，生成链路密钥以在第一和第二设备之间建立认证的无线通信。

7. 发明授权

US6123262A Omnidirectional reading of two-dimensional bar code symbols 失效
标题翻译：全方位阅读二维条码符号
公开(公告)号：US6123262A
公开(公告)日：2000-09-26
申请号：US447779
申请日：1999-11-23
申请人： Stephen Shellhammer
发明人： Stephen Shellhammer
IPC分类号： G06K7/14 , G06K7/10
CPC分类号： G06K7/1443 , G06K7/14 , G06K7/1456
摘要： A method and apparatus for automatically aligning a field of view of a two-dimensional bar code symbol reading device with a randomly oriented two-dimensional bar code symbol, wherein the symbol comprises a unique locatable pattern of bars and spaces, located along at least one side of the two-dimensioanl bar code. The invention uses standard omnidirectional scanning pattern for reading one-dimensional bar codes to locate the unique pattern in bar code, and works on the bar code located anywhere in the scanner field of view. The invention determines the angle of rotation of the bar code and the spatial location of the bar code in the scanner's field of view.
摘要翻译：一种用于将二维条形码符号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，其中该符号包括沿着至少一个位置的条形和空间的唯一可定位模式侧面的二维条形码。本发明使用标准的全向扫描图案来读取一维条形码以在条形码中定位唯一的图案，并对位于扫描仪视场中任何地方的条形码进行工作。本发明确定条形码的旋转角度和条形码在扫描仪视场中的空间位置。

8. 发明授权

US06209788B1 Optical scanners 失效
标题翻译：光学扫描仪
公开(公告)号：US06209788B1
公开(公告)日：2001-04-03
申请号：US09436468
申请日：1999-11-08
申请人： Raj Bridgelall , Edward Barkan , Stephen Shellhammer , Joseph Campanelli , Joseph Katz , Yajun Li , Daniel R. McGlynn
发明人： Raj Bridgelall , Edward Barkan , Stephen Shellhammer , Joseph Campanelli , Joseph Katz , Yajun Li , Daniel R. McGlynn
IPC分类号： G06K710
CPC分类号： G06K7/10851 , G06K7/14 , G06K7/1452 , G06K7/1478
摘要： An optical scanning system is provided for producing a signal representative of a spatial distribution of indicia having different degrees of reflectivity to light, such as a bar code (14). The system includes an optical scanner (12) for scanning beam of light over the spatial distribution of indicia (14) and for producing an electrical signal corresponding to changes in the degree of reflectivity of the indicia. A digitizer (20), responsive to detections in a predetermined characteristic of the produced electrical signal is provided. The digitizer (20) converts the detections into digital words, such digital signals having a plurality of bits. The digitizer includes a timing generation circuit (42) for producing a pulse in response to each one of the detections with a time duration representative of the degree of reflectivity of the indicia as the beam of light. A decoder converts the time duration of the pulse into the digital word having a plurality of bits. An enhancement filter (30) is also disclosed. The enhancement filter (30) modifies pulses produced by a differentiator circuit (24) used in the scanner. Such modification includes increasing the rise time, and peak level of, the pulses produced by the differentiator circuit (24).
摘要翻译：提供了一种光学扫描系统，用于产生表示具有不同光反射度的标记的空间分布的信号，例如条形码（14）。该系统包括用于在标记（14）的空间分布上扫描光束并用于产生对应于标记的反射度的变化的电信号的光学扫描器（12）。提供了响应于所产生的电信号的预定特性中的检测的数字转换器（20）。数字转换器（20）将检测转换为数字字，这样的数字信号具有多个位。数字转换器包括一个定时产生电路（42），用于响应于每个检测产生一个脉冲，时间间隔代表作为光束的标记的反射率。解码器将脉冲的持续时间转换为具有多个位的数字字。还公开了增强滤波器（30）。增强滤波器（30）修改由扫描器中使用的微分电路（24）产生的脉冲。这种修改包括增加由微分电路（24）产生的脉冲的上升时间和峰值电平。

9. 发明授权

US6082621A Interface between threshold processing digitizer for bar code reader 失效
标题翻译：门禁处理数字转换器之间的接口条形码阅读器
公开(公告)号：US6082621A
公开(公告)日：2000-07-04
申请号：US335001
申请日：1994-11-09
申请人： Jane Chan , David Goren , Harry Kuchenbrod , Gary Serbin , Stephen Shellhammer , Glenn Spitz
发明人： Jane Chan , David Goren , Harry Kuchenbrod , Gary Serbin , Stephen Shellhammer , Glenn Spitz
IPC分类号： G06K7/10
CPC分类号： G06K7/10851
摘要： A multi-bit digitizer (30) for a barcode reader detects the presence of edges of a scanned barcode symbol, and also measures the strength of each detected edge. A polarity or edge direction signal (8) indicates the direction of each detected edge, and a timing signal (6) is representative of the timing and also, by means of a variable pulse width, the strength of each edge. A gating signal (200) indicates that the data are unreliable and invalid if the measured voltage applied to the scanner motor of the barcode reader is higher or lower than defined limit values. Any scans made at a speed which were too high or too low are rejected.
摘要翻译：用于条形码读取器的多位数字转换器（30）检测扫描的条形码符号的边缘的存在，并且还测量每个检测到的边缘的强度。极性或边缘方向信号（8）指示每个检测到的边缘的方向，并且定时信号（6）代表定时，并且还通过可变脉冲宽度来表示每个边缘的强度。门控信号（200）指示如果施加到条形码读取器的扫描仪电机的测量电压高于或低于定义的限制值，则数据不可靠和无效。以太高或过低的速度进行的扫描都被拒绝。

10. 发明授权

US5988505A Omnidirectional reading of two-dimensional symbols 失效
标题翻译：全方位阅读二维符号
公开(公告)号：US5988505A
公开(公告)日：1999-11-23
申请号：US868229
申请日：1997-06-03
申请人： Stephen Shellhammer
发明人： Stephen Shellhammer
IPC分类号： G06K7/14 , G06K7/10
CPC分类号： G06K7/1443 , G06K7/14 , G06K7/1456
摘要： A method and apparatus for automatically aligning a field of view of a two-dimensional bar code symbol reading device with a randomly oriented two-dimensional bar code symbol, wherein the symbol comprises a unique locatable pattern of bars and spaces, located along at least one side of the two-dimensioanl bar code. The invention uses standard omnidirectional scanning pattern for reading one-dimensional bar codes to locate the unique pattern in bar code, and works on the bar code located anywhere in the scanner field of view. The invention determines the angle of rotation of the bar code and the spatial location of the bar code in the scanner's field of view.
摘要翻译：一种用于将二维条形码符号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，其中该符号包括沿着至少一个位置的条形和空间的唯一可定位模式侧面的二维条形码。本发明使用标准的全向扫描图案来读取一维条形码以在条形码中定位唯一的图案，并对位于扫描仪视场中任何地方的条形码进行工作。本发明确定条形码的旋转角度和条形码在扫描仪视场中的空间位置。

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