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公开(公告)号：US06992564B2
公开(公告)日：2006-01-31
申请号：US09909369
申请日：2001-07-19
IPC分类号： G06F7/00
CPC分类号： G06K17/00 , G06K2017/0045
摘要： A system and method described for tracking portable devices. The system may include a transmitter which transmits wireless inquiries to a plurality of portable devices and a receiver receiving replies to the inquiries from the portable devices. In addition, the system may include a memory storing identifier data corresponding to the portable devices and a processor coupled to the memory and to the receiver, the processor retrieving from each reply, identifier data uniquely identifying a particular one of the portable devices which generated the reply and comparing the identifier data to the stored identifier data. Furthermore, the system may include an alarm system coupled to the processor and controlled based on the comparison of stored identifier data to the identifier data retrieved from the replies.
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公开(公告)号：US07039358B1
公开(公告)日：2006-05-02
申请号：US09714803
申请日：2000-11-16
申请人： Stephen J. Shellhammer , Jacob Sharony , Anthony D. Biuso , Sean A. Connolly , William Sackett , Joseph Cabana , Patrick Tilley , Robert Beach
发明人： Stephen J. Shellhammer , Jacob Sharony , Anthony D. Biuso , Sean A. Connolly , William Sackett , Joseph Cabana , Patrick Tilley , Robert Beach
IPC分类号： H04B7/00
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.
摘要翻译： 提供技术用于两个不同的无线网络协议之间的频率协调，诸如IEEE 802.11和蓝牙协议，彼此靠近地操作。 通过使用根据第一通信协议（可以是802.11协议）和使用频带（其可以是2.4GHz频带）操作的第一无线电收发机，连接到有线网络的基站来实现协调 并且根据第一通信协议进行操作，根据第二通信协议（可以是蓝牙协议）和使用该频带操作的第二无线电收发机以及与该基站相关联的协调器，从而进行激活 所述第一无线电收发器，去激活所述第一无线电收发器，激活所述第二无线电收发器，以及停用所述第二无线电收发器。
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3.发明授权公开(公告)号：US06764012B2
公开(公告)日：2004-07-20
申请号：US09898236
申请日：2001-07-03
申请人： Sean Connolly , Paul Poloniewicz , Stephen J. Shellhammer , Anthony Biuso , Frank Boccuzzi , William Sackett , Daniel Curry , Ellen Cordes , Michael Ryder , Robert Wild , Bruce A. Willins , Alistair R. Hamilton
发明人： Sean Connolly , Paul Poloniewicz , Stephen J. Shellhammer , Anthony Biuso , Frank Boccuzzi , William Sackett , Daniel Curry , Ellen Cordes , Michael Ryder , Robert Wild , Bruce A. Willins , Alistair R. Hamilton
IPC分类号： G08K710
CPC分类号： G06K7/109 , G04B47/00 , G06F1/163 , G06F21/32 , G06F21/35 , G06F2203/0331 , G06K7/10653 , G06K7/10881
摘要： A signaling arrangement and method for use in a wireless local area network managed by a system manager include a reader for electro-optically reading bar code symbols. The system manager verifies that a symbol has been successfully read and sends an acknowledgment signal by wireless, radio frequency transmission to a remote indicator operative for generating an alert signal noticeable to a user.
摘要翻译： 在由系统管理器管理的无线局域网中使用的信令装置和方法包括用于电光学读取条形码符号的读取器。 系统管理器验证符号已被成功读取，并且通过无线，射频传输向远程指示器发送确认信号，该远程指示器用于产生对用户可察觉的警报信号。
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公开(公告)号：US06783071B2
公开(公告)日：2004-08-31
申请号：US09883516
申请日：2001-06-18
IPC分类号： G06K1500
CPC分类号： G07G1/14 , G06K17/0022 , H04W84/18
摘要： Wireless data communications using a master/slave protocol are easily established between a master radio module which is part of a POS terminal and a slave radio module which is part of a portable bar code scanning device. A bar code identifying the portable bar code scanning device is provided on the outside of the housing of the portable device. By scanning this bar code with a scanner associated with the POS terminal, such as a fixed scanner built onto a counter, the master/slave radio communications link can be automatically implemented.
摘要翻译： 使用主/从协议的无线数据通信在作为POS终端的一部分的主无线电模块和作为便携式条形码扫描装置的一部分的从无线电模块之间容易地建立。 识别便携式条形码扫描装置的条形码设置在便携式装置的壳体的外部。 通过使用与POS终端相关联的扫描仪（例如内置在计数器上的固定扫描仪）扫描该条形码，可以自动实现主/从无线电通信链路。
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5.发明授权Adjustable transmitter for privacy protection of content broadcast from a transmitting device to a receiving device 失效可调节发射机，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。
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6.发明申请公开(公告)号：US20130195089A1
公开(公告)日：2013-08-01
申请号：US13362934
申请日：2012-01-31
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。
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公开(公告)号：US20130059614A1
公开(公告)日：2013-03-07
申请号：US13226101
申请日：2011-09-06
IPC分类号： H04W72/02
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。
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公开(公告)号：US20110045781A1
公开(公告)日：2011-02-24
申请号：US12858334
申请日：2010-08-17
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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9.发明申请METHODS AND APPARATUS FOR SPECTRUM SENSING OF SIGNAL FEATURES IN A WIRELESS CHANNEL 有权无线通道中信号特征的频谱感测方法与装置公开(公告)号：US20110021167A1
公开(公告)日：2011-01-27
申请号：US12618533
申请日：2009-11-13
IPC分类号： H04B17/00
CPC分类号： H04W16/14 , H04B7/0837 , H04B17/26 , H04B17/382 , H04W72/085
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20100105419A1
公开(公告)日：2010-04-29
申请号：US12553955
申请日：2009-09-03
IPC分类号： H04B7/00
CPC分类号： H04W24/00 , H04W72/02 , H04W72/082 , H04W84/18
摘要： A spatio-temporal random voting scheme is provided that incorporates location distribution, spatial randomness, and temporal randomness in the collection of information from a plurality of sensing devices within the cognitive network. The region is divided into a plurality of sectors, where each sector is a portion of the region. A subset of sectors is selected from the plurality of sectors in the region to provide spatial randomness. A device is randomly selected from each sector in the subset of sectors to provide additional spatial randomness to the information collection process. Temporal randomness may be introduced by randomly selecting a timeslot within a sensing window period in which devices are to scan a frequency spectrum band to determine if a signal energy above a threshold is detected. Sensing reports are then collected from the selected sensing devices and used to determine whether the frequency spectrum band is available or in use.
摘要翻译： 提供了一种时空随机投票方案，其包括来自认知网络内的多个感测装置的信息收集中的位置分布，空间随机性和时间随机性。 该区域被分成多个扇区，其中每个扇区是区域的一部分。 从区域中的多个扇区中选择扇区的子集以提供空间随机性。 从扇区子集中的每个扇区随机选择一个设备，以向信息收集过程提供额外的空间随机性。 可以通过在感测窗口周期内随机选择时隙来引入时间随机性，其中设备将扫描频谱带以确定是否检测到高于阈值的信号能量。 然后从所选择的感测装置收集感测报告，并用于确定频谱带是可用还是正在使用。
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