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    FULL-DUPLEX RADIO FREQUENCY ECHO CANCELLATION
    1.
    发明申请
    FULL-DUPLEX RADIO FREQUENCY ECHO CANCELLATION 审中-公开
    全双工无线电频率ECHO CANCELLATION

    公开(公告)号：US20120051411A1

    公开(公告)日：2012-03-01

    申请号：US13288622

    申请日：2011-11-03

    申请人： MARK DURON ,  RAJ BRIDGELALL

    发明人： MARK DURON ,  RAJ BRIDGELALL

    IPC分类号： H04L27/06 ,  H04B17/00 ,  H03D1/04

    CPC分类号： H04B1/525 ,  G06K7/0008

    摘要： A system comprising a transmitter element creating an interrogation signal and transmitting the interrogation signal and a receiver element receiving a reflection signal of the interrogation signal and combining the reflection signal and a feedback signal to cancel at least a portion of radio frequency echo signals in the reflection signal.

    摘要翻译： 一种系统，包括产生询问信号并发送询问信号的发射机元件和接收询问信号的反射信号的接收机元件，并组合反射信号和反馈信号以消除反射中的至少一部分射频回波信号 信号。

    Opportunistic power supply charge system for portable unit
    2.
    发明授权
    Opportunistic power supply charge system for portable unit 有权
    便携式单元的机会电源充电系统

    公开(公告)号：US07872444B2

    公开(公告)日：2011-01-18

    申请号：US10733221

    申请日：2003-12-11

    申请人： Alistair Hamilton ,  Raj Bridgelall

    发明人： Alistair Hamilton ,  Raj Bridgelall

    IPC分类号： H02J7/00 ,  H02J7/04

    CPC分类号： H02J50/10 ,  G06K7/10891 ,  H02J5/005 ,  H02J7/025 ,  H02J50/90 ,  Y02P90/50

    摘要： Systems and methods for opportunistically charging a rechargeable power source of a portable electronic unit are provided. The system includes a primary inductance assembly energized by a main power source for inducing an electro-magnetic flux in a secondary coil assembly associated with a power source of the portable unit. Such electro-magnetic flux creates an electric current that is subsequently employed for charging the power source of the portable unit. A controller of the charging system can monitor state of charge, and notify a user when a recharge is required. Scavenging modes may also be employed for recharging the main power source and the rechargeable source of the portable unit.

    摘要翻译： 提供了用于机会地对便携式电子单元的可再充电电源充电的系统和方法。 该系统包括由主电源激励的初级电感组件，用于在与便携式单元的电源相关联的次级线圈组件中感应电磁通。 这种电磁通产生随后用于对便携式单元的电源充电的电流。 充电系统的控制器可以监视充电状态，并在需要充电时通知用户。 清扫模式也可以用于对便携式设备的主电源和可再充电源进行再充电。

    Dual transceiver module for use with imager and video cameras
    3.
    发明授权
    Dual transceiver module for use with imager and video cameras 有权
    用于成像器和摄像机的双收发模块

    公开(公告)号：US07447479B2

    公开(公告)日：2008-11-04

    申请号：US10056408

    申请日：2002-01-24

    申请人： Raj Bridgelall

    发明人： Raj Bridgelall

    IPC分类号： H04B5/00

    CPC分类号： H04N7/148 ,  H04N7/147 ,  H04N7/173

    摘要： A video imager processor and two radio frequency transceivers are supported on a common support having a predetermined form factor, such as that of a Compact Flash card commonly utilized in mobile computers. Common digital processing circuitry is used for processing the baseband signal from the RF transceivers, making a highly integrated and compact arrangement.

    摘要翻译： 视频成像器处理器和两个射频收发器在具有预定形状因数的公共支撑件（例如通常在移动计算机中使用的紧凑型闪存卡的支持）上被支持。 通用数字处理电路用于处理来自RF收发器的基带信号，从而形成高度集成且紧凑的布置。

    System and a node used in the system for wireless communication and sensory monitoring
    4.
    发明授权
    System and a node used in the system for wireless communication and sensory monitoring 有权
    系统和用于无线通信和感觉监控的系统中使用的节点

    公开(公告)号：US07433648B2

    公开(公告)日：2008-10-07

    申请号：US10750550

    申请日：2003-12-31

    申请人： Raj Bridgelall

    发明人： Raj Bridgelall

    IPC分类号： H04B7/00

    CPC分类号： H01Q1/007 ,  H04L67/12 ,  H04W16/28 ,  H04W84/04

    摘要： A system is provided for communication and sensory monitoring. The system comprises a plurality of nodes installed as a network in a structure. Each of the plurality of nodes comprises an internode transceiver for wireless communication between nodes, a wireless network transceiver for wireless communication with one or more wireless devices, one or more sensors for monitoring the environment of the structure and a processor coupled to the internode transceiver, the wireless network transceiver and the one or more sensors to exchange data with the internode transceiver, the wireless network transceiver and the one or more sensors devices coupled to the processor and process the data. The system also includes a wide area network bridge coupled to the plurality of network nodes. The network bridge receives data from the plurality of network nodes and passes the information to a computer network for processing.

    摘要翻译： 提供一种用于通信和感觉监控的系统。 该系统包括在结构中作为网络安装的多个节点。 多个节点中的每一个包括用于节点之间的无线通信的节点间收发器，用于与一个或多个无线设备进行无线通信的无线网络收发器，用于监视该结构的环境的一个或多个传感器以及耦合到节点间收发器的处理器， 无线网络收发器和一个或多个传感器以与节点收发器，无线网络收发器和耦合到处理器的一个或多个传感器设备交换数据并处理数据。 该系统还包括耦合到多个网络节点的广域网桥。 网桥从多个网络节点接收数据，并将该信息传递给计算机网络进行处理。

    Range extension for RFID hand-held mobile computers
    5.
    发明授权
    Range extension for RFID hand-held mobile computers 有权
    RFID手持移动计算机的范围扩展

    公开(公告)号：US07175093B2

    公开(公告)日：2007-02-13

    申请号：US10021843

    申请日：2001-12-13

    申请人： Raj Bridgelall

    发明人： Raj Bridgelall

    IPC分类号： G06K7/10

    CPC分类号： G06K7/0008 ,  G06K7/10386

    摘要： A mobile computer and a reader are provided that may be constructed as a standard modular attachment (e.g. sled) for the computer that may be used only when RFID interrogation is desired. The sled may carry an antenna loop, integrated RFID reader electronics, and a dedicated battery that are separate from the actual mobile computer.

    摘要翻译： 提供了移动计算机和读取器，其可以被构造为仅在需要RFID询问时可以使用的计算机的标准模块化附件（例如，雪橇）。 雪橇可以携带天线回路，集成RFID读取器电子设备和与实际移动计算机分离的专用电池。

    Wireless locating and tracking systems
    8.
    发明申请
    Wireless locating and tracking systems 失效
    无线定位和跟踪系统

    公开(公告)号：US20060033609A1

    公开(公告)日：2006-02-16

    申请号：US11244920

    申请日：2005-10-05

    申请人： Raj Bridgelall

    发明人： Raj Bridgelall

    IPC分类号： G01S1/00 ,  H04Q5/22

    CPC分类号： H01Q1/2225 ,  G01S13/876 ,  G06K19/07767 ,  G06K2017/0045 ,  H01Q1/22 ,  H01Q3/247 ,  H01Q21/29

    摘要： A locating and tracking system is provided in which the assets are desired to be located and tracked are associated with either radio frequency (RF) tags or radio frequency identification and radio frequency data communication (RFID/RFDC) devices. Depending on which device is attached to the asset, the other device is located at known locations. The RFID/RFDC devices interrogate and receive signals from the RF tags. The received information is sent to the host computer. With the location of either the RF tags or the RFID/RFDC devices known, the assets may be located and tracked. An improved RF tag antenna design is also provided by using a switching mechanism connected to at least two antennas.

    摘要翻译： 提供了一种定位和跟踪系统，其中希望将资产定位和跟踪与射频（RF）标签或射频识别和射频数据通信（RFID / RFDC）设备相关联。 根据哪个设备连接到资产，其他设备位于已知位置。 RFID / RFDC设备询问并接收来自RF标签的信号。 接收到的信息被发送到主机。 随着RF标签或RFID / RFDC设备的位置已知，资产可能被定位和跟踪。 还通过使用连接到至少两个天线的开关机构来提供改进的RF标签天线设计。

    Radio frequency identification-based power management system and method for wireless communication devices
    9.
    发明申请
    Radio frequency identification-based power management system and method for wireless communication devices 审中-公开
    用于无线通信设备的基于射频识别的电源管理系统和方法

    公开(公告)号：US20060022802A1

    公开(公告)日：2006-02-02

    申请号：US10909960

    申请日：2004-07-30

    申请人： Raj Bridgelall

    发明人： Raj Bridgelall

    IPC分类号： H04Q5/22

    CPC分类号： G06K19/0712 ,  G06K19/0707 ,  G06K19/0723

    摘要： A wireless communication system implements various RFID-based methods for wireless communication devices and wireless network infrastructures. The communication system includes an RFID tag and a wireless communication device. The RFID tag is configured to receive an RFID interrogation signal and, upon receipt thereof, to supply one or more transition signals. The wireless communication device is configured to operate in a plurality of operational states, is coupled to receive the transition signals, and is configured, upon receipt thereof, to transition from at least a first operational state to a second operational state.

    摘要翻译： 无线通信系统实现用于无线通信设备和无线网络基础设施的各种基于RFID的方法。 通信系统包括RFID标签和无线通信设备。 RFID标签被配置为接收RFID询问信号，并且在其被接收时提供一个或多个转换信号。 无线通信设备被配置为在多个操作状态下操作，被耦合以接收转换信号，并且在接收到它时被配置为从至少第一操作状态转换到第二操作状态。

    Item finding using RF signalling
    10.
    发明申请
    Item finding using RF signalling 有权
    使用RF信号的项目查找

    公开(公告)号：US20050285742A1

    公开(公告)日：2005-12-29

    申请号：US10881020

    申请日：2004-06-29

    申请人： Hal Charych ,  Raj Bridgelall ,  Sumita Malik ,  Michael O'Haire

    发明人： Hal Charych ,  Raj Bridgelall ,  Sumita Malik ,  Michael O'Haire

    IPC分类号： G01S3/20 ,  G01S13/75 ,  G06K17/00 ,  G08B13/14

    CPC分类号： G06K17/00 ,  G01S3/20 ,  G01S13/751 ,  G06K7/10079 ,  G06K2017/0045

    摘要： Methods and apparatus are provided for locating one among many items equipped with RFID tags. The apparatus comprises a portable system interrogating the RFID tags and receiving responses therefrom that depend at least on their bearing angle. A comparator selects responses from the one item and ignores others. An annunciator indicates the presence of the one item in the interrogator field of view and, desirably but not essentially, its relative proximity. A directional antenna whose beam pattern is limited in azimuth and/or elevation provides bearing angle information. Its field of view becomes progressively smaller as the antenna approaches the one item so that a user can substantially pinpoint its location without needing any of the usual RFID infrastructure. Tag response hit rate and/or signal strength provides range related information to the interrogator. Optionally, the presence of each new tag is announced until all new tags have been identified.

    摘要翻译： 提供了用于在配备有RFID标签的许多物品中定位的方法和装置。 该装置包括询问RFID标签并从其接收至少依赖于其承载角度的响应的便携式系统。 比较器选择一个项目的响应并忽略其他项目。 指示器指示在询问器视场中存在一个项目，并且希望但不是基本上它的相对接近度。 波束图案在方位和/或高度上被限制的定向天线提供了轴承角度信息。 随着天线接近一个项目，其视野逐渐变小，使得用户可以基本上精确定位其位置，而不需要任何通常的RFID基础设施。 标签响应命中率和/或信号强度向询问器提供范围相关信息。 可选地，每个新标签的存在被公布，直到所有新的标签被识别为止。