NARROWBAND IMPULSE RADIO SYSTEM AND METHOD
    1.
    发明申请

    公开(公告)号:US20190044573A1

    公开(公告)日:2019-02-07

    申请号:US16000878

    申请日:2018-06-05

    IPC分类号: H04B1/7163

    CPC分类号: H04B1/7163 H04B1/7174

    摘要: A narrowband impulse radio system includes a transmitter, transmitting a plurality of harmonic signals, and a receiver, receiving the signals, wherein the signals cooperate in a constructive alignment to yield a narrowband impulse signal of amplitude approximately equal to the sum of the amplitudes of the plurality of harmonic signals. The transmitter or the receiver may employ a plurality of phase shifters to effect the cooperation in the transmitted or received signals, respectively. The harmonic signals cooperate to yield a quasi-DC signal whose pulse rate equals the fundamental harmonic frequency. In a preferred embodiment, the narrowband impulse transmitter further includes a plurality of transmit modules each transmitting one of the plurality of harmonics. The plurality of transmit modules may employ magnetic antennas characterized by a magnetic axis aligned at an angle of approximately 55 degrees relative to a common axis, or in other embodiments, may employ mechanically rotating permanent magnets.

    Directive, electrically-small UWB antenna system and method
    2.
    发明授权
    Directive, electrically-small UWB antenna system and method 有权
    指令,电小UWB天线系统和方法

    公开(公告)号:US09209525B2

    公开(公告)日:2015-12-08

    申请号:US13436956

    申请日:2012-04-01

    IPC分类号: H01Q21/20 H01Q3/26

    CPC分类号: H01Q21/20 H01Q3/26

    摘要: A directive electrically small antenna (DESA) process and method employs multipole synthesis to implement directive electrically small multipole antennas with ultra-wideband (UWB) stable antenna patterns. Although lossy, embodiments have adequate efficiency to work as receive antennas in the high ambient noise environment of the HF band and below. Employing a process dubbed “antenna regeneration,” energy may be circulated within an antenna by means other than resonance. This enables multiple decade UWB response without the efficiency penalties inherent to traditional resistively-loaded antenna systems. Regenerative antennas can simultaneously achieve the performance of high Q resonant antennas and the bandwidth of resistively loaded antennas.

    摘要翻译: 指令电小天线(DESA)过程和方法采用多极合成来实现具有超宽带(UWB)稳定天线方向的指导性电小型多极天线。 虽然有损耗的实施例具有足够的效率作为HF频带及以下的高环境噪声环境中的接收天线工作。 使用被称为“天线再生”的过程,能量可以通过除谐振之外的方式在天线内循环。 这样可以实现多重UWB响应,而无需传统电阻负载天线系统固有的效率损失。 再生天线可以同时实现高Q谐振天线的性能和电阻负载天线的带宽。

    Multiple phase state near-field electromagnetic system and method for communication and location
    3.
    发明授权
    Multiple phase state near-field electromagnetic system and method for communication and location 失效
    多相状态近场电磁系统及通讯方法

    公开(公告)号:US08253626B2

    公开(公告)日:2012-08-28

    申请号:US12391209

    申请日:2009-02-23

    IPC分类号: G01S3/02 G01S5/04 H04B5/00

    CPC分类号: H04B5/02

    摘要: A multiple phase state near-field electromagnetic location and communication system includes a multiple phase state near-field transmitter, and a near-field locator receiver. The near-field transmitter is capable of operation in at least two states and each of these at least two states generates a state characteristic difference detected at the near-field locator receiver. The state characteristic difference may be employed for location determination, communication or both. The present invention is particularly well-suited for use in conjunction with a near-field electromagnetic ranging system. In further embodiments, a multiple phase state near-field electromagnetic location and communication process includes the steps of determining a transmission state for a near-field quadrature transmitter, transmitting a near-field transmission corresponding to said transmission state, receiving a near-field transmission corresponding to said transmission state, and determining a difference between at least two properties of said near-field transmission where the difference is characteristic of and corresponding to the transmission state.

    摘要翻译: 多相状态近场电磁定位和通信系统包括多相状态近场发射机和近场定位接收机。 近场发射机能够在至少两个状态下操作,并且这些至少两个状态中的每一个产生在近场定位器接收器处检测到的状态特征差。 状态特征差异可以用于位置确定,通信或两者。 本发明特别适用于与近场电磁测距系统结合使用。 在另外的实施例中,多相状态近场电磁位置和通信过程包括以下步骤:确定近场正交发射机的传输状态,发射对应于所述传输状态的近场传输,接收近场传输 对应于所述传输状态,并且确定所述近场传输的至少两个属性之间的差异,其中所述差是所述传输状态的特征并且对应于所述传输状态。

    Inventory control system and method
    4.
    发明申请
    Inventory control system and method 有权
    库存控制系统和方法

    公开(公告)号:US20110315765A1

    公开(公告)日:2011-12-29

    申请号:US13153640

    申请日:2011-06-06

    IPC分类号: G06Q30/00

    摘要: An inventory control system and method uses a locating device associated with a mover and identifies an ID tagged asset using an ID reader also associated with the mover. Thus, a single relatively high-cost locating device may be temporarily associated with the asset, enabling precise location of a multitude of assets as a mover traverses an inventory area. The asset location and identification may be associated in a database. The asset location may be refined by using additional measurement devices, for example a forklift height sensor, to determine extension from a locating device. A further embodiment utilizes RFID or barcode technology for the ID tag. The locating device may utilize near-field location technology, signals-of-opportunity, or other RTLS technologies.

    摘要翻译: 库存控制系统和方法使用与移动者相关联的定位设备,并使用也与移动者相关联的ID读取器识别ID标记的资产。 因此,单个相对较高成本的定位设备可以暂时与该资产相关联,使得能够在移动者遍历库存区域时精确地定位多个资产。 资产位置和标识可能与数据库相关联。 可以通过使用额外的测量装置(例如叉车高度传感器)来确定资产位置,以确定来自定位装置的扩展。 另一实施例将RFID标签或条形码技术用于ID标签。 定位设备可以利用近场定位技术,机会信号或其他RTLS技术。

    Near Field Electromagnetic Location System and Method
    5.
    发明申请
    Near Field Electromagnetic Location System and Method 有权
    近场电磁定位系统及方法

    公开(公告)号:US20110148714A1

    公开(公告)日:2011-06-23

    申请号:US12977067

    申请日:2010-12-23

    IPC分类号: G01S1/02

    摘要: A system and method for determining a position of a locus comprising a locator device for disposition at the locus; the locator device configured for receiving an electromagnetic signal from a beacon device, the locator device receiving at a distance from the beacon device within near field range of the electromagnetic signal; the locator device configured for distinguishing at least two characteristics of the electromagnetic signal sensed at the locus; the system employing the at least two characteristics to effect the determining of the position of the locus.

    摘要翻译: 一种用于确定轨迹的位置的系统和方法,包括用于在所述场所处置的定位装置; 所述定位装置被配置用于从信标装置接收电磁信号,所述定位装置在所述电磁信号的近场范围内从所述信标装置接收一定距离; 所述定位装置被配置为区分在所述轨迹处感测的所述电磁信号的至少两个特性; 所述系统采用所述至少两个特征来实现所述轨迹位置的确定。

    Space Efficient Magnetic Antenna Method
    6.
    发明申请
    Space Efficient Magnetic Antenna Method 有权
    空间高效磁性天线方法

    公开(公告)号:US20100277387A1

    公开(公告)日:2010-11-04

    申请号:US12834821

    申请日:2010-07-12

    IPC分类号: H01Q7/08 H01Q1/00

    摘要: A space efficient magnetic antenna is disclosed for use in tracking, positioning and other applications. In a preferred embodiment, a space efficient magnetic antenna system comprises a first magnetic antenna with a first null axis aligned within a predetermined plane and a second magnetic antenna having a second null axis aligned substantially orthogonal to a first null axis. A second magnetic antenna system lies in a minimal coupling orientation with respect to a first magnetic antenna system. Additionally, a first magnetic antenna may further comprise a plurality of interconnected magnetic antenna elements. A space efficient magnetic antenna system may include an RF module. In further embodiments, the antenna system may enclose a substantial majority of the device including the RF module; the RF module may be enclosed substantially or wholly within one or more antennas of the antenna system.

    摘要翻译: 公开了一种用于跟踪,定位和其他应用的空间高效磁性天线。 在优选实施例中,空间有效的磁性天线系统包括具有在预定平面内对准的第一空轴的第一磁性天线和具有与第一空轴基本正交的第二空轴的第二磁性天线。 第二磁性天线系统位于相对于第一磁性天线系统的最小耦合取向。 另外,第一磁性天线还可以包括多个互连的磁性天线元件。 空间高效的磁性天线系统可以包括RF模块。 在另外的实施例中,天线系统可以包括包括RF模块的设备的绝大多数; RF模块可以基本上或完全地封装在天线系统的一个或多个天线内。

    Multiple Phase State Near-Field Electromagnetic System And Method For Communication And Location
    7.
    发明申请
    Multiple Phase State Near-Field Electromagnetic System And Method For Communication And Location 失效
    多相状态近场电磁系统及其通信与定位方法

    公开(公告)号:US20090280742A1

    公开(公告)日:2009-11-12

    申请号:US12391209

    申请日:2009-02-23

    IPC分类号: H04B5/00

    CPC分类号: H04B5/02

    摘要: A multiple phase state near-field electromagnetic location and communication system includes a multiple phase state near-field transmitter, and a near-field locator receiver. The near-field transmitter is capable of operation in at least two states and each of these at least two states generates a state characteristic difference detected at the near-field locator receiver. The state characteristic difference may be employed for location determination, communication or both. The present invention is particularly well-suited for use in conjunction with a near-field electromagnetic ranging system. In further embodiments, a multiple phase state near-field electromagnetic location and communication process includes the steps of determining a transmission state for a near-field quadrature transmitter, transmitting a near-field transmission corresponding to said transmission state, receiving a near-field transmission corresponding to said transmission state, and determining a difference between at least two properties of said near-field transmission where the difference is characteristic of and corresponding to the transmission state.

    摘要翻译: 多相状态近场电磁定位和通信系统包括多相状态近场发射机和近场定位接收机。 近场发射机能够在至少两个状态下操作,并且这些至少两个状态中的每一个产生在近场定位器接收器处检测到的状态特征差。 状态特征差异可以用于位置确定,通信或两者。 本发明特别适用于与近场电磁测距系统结合使用。 在另外的实施例中,多相状态近场电磁位置和通信过程包括以下步骤:确定近场正交发射机的传输状态,发射对应于所述传输状态的近场传输,接收近场传输 对应于所述传输状态,并且确定所述近场传输的至少两个属性之间的差异,其中所述差是所述传输状态的特征并且对应于所述传输状态。

    Low frequency asset tag tracking system and method
    8.
    发明授权
    Low frequency asset tag tracking system and method 失效
    低频资产标签跟踪系统及方法

    公开(公告)号:US07414571B2

    公开(公告)日:2008-08-19

    申请号:US11215699

    申请日:2005-08-30

    IPC分类号: G01S13/08 G01S13/66

    摘要: An apparatus and method for low frequency asset tracking includes a low frequency transmitter tag associated with a cargo container or other high value commodity, a plurality of receivers that detect low frequency signals, and a microprocessor that uses algorithms and/or data pertaining to the propagation characteristics of the signal to locate the position of the container or high value commodity. The tag may include sensors to monitor container properties or conditions, such as temperature, motion, intrusion, RF fields, or other properties of interest. Sensor data may be modulated on the low frequency transmitter signal.

    摘要翻译: 用于低频资产跟踪的装置和方法包括与货物集装箱或其他高价值商品相关联的低频发射器标签,检测低频信号的多个接收器以及使用与传播有关的算法和/或数据的微处理器 信号的特征定位容器或高价值商品的位置。 标签可以包括用于监测容器性质或条件的传感器,例如温度,运动,入侵,RF场或感兴趣的其它属性。 传感器数据可以在低频发射机信号上进行调制。

    Space efficient magnetic antenna method
    9.
    发明授权
    Space efficient magnetic antenna method 有权
    空间有效的磁性天线方法

    公开(公告)号:US08922440B2

    公开(公告)日:2014-12-30

    申请号:US12834821

    申请日:2010-07-12

    摘要: A space efficient magnetic antenna is disclosed for use in tracking, positioning and other applications. In a preferred embodiment, a space efficient magnetic antenna system comprises a first magnetic antenna with a first null axis aligned within a predetermined plane and a second magnetic antenna having a second null axis aligned substantially orthogonal to a first null axis. A second magnetic antenna system lies in a minimal coupling orientation with respect to a first magnetic antenna system. Additionally, a first magnetic antenna may further comprise a plurality of interconnected magnetic antenna elements. A space efficient magnetic antenna system may include an RF module. In further embodiments, the antenna system may enclose a substantial majority of the device including the RF module; the RF module may be enclosed substantially or wholly within one or more antennas of the antenna system.

    摘要翻译: 公开了一种用于跟踪,定位和其他应用的空间高效磁性天线。 在优选实施例中,空间有效的磁性天线系统包括具有在预定平面内对准的第一空轴的第一磁性天线和具有与第一空轴基本正交的第二空轴的第二磁性天线。 第二磁性天线系统位于相对于第一磁性天线系统的最小耦合取向。 另外,第一磁性天线还可以包括多个互连的磁性天线元件。 空间高效的磁性天线系统可以包括RF模块。 在另外的实施例中,天线系统可以包括包括RF模块的设备的绝大多数; RF模块可以基本上或完全地封装在天线系统的一个或多个天线内。

    Asset localization identification and movement system and method
    10.
    发明授权
    Asset localization identification and movement system and method 有权
    资产定位识别与运动系统及方法

    公开(公告)号:US07957833B2

    公开(公告)日:2011-06-07

    申请号:US11890350

    申请日:2007-08-06

    IPC分类号: G06F7/00

    CPC分类号: G06Q10/08

    摘要: A system and method for identification and location of an asset by tracking the mover of the asset using a locating device associated with the mover and identifying the asset using an identification reader associated with the mover and a passive identification tag associated with the asset. A single mover may move many assets. An asset is identified; the mover then moves the asset to a destination location, whereupon the mover and asset position are determined. The asset location may then be recorded in memory. The measurement of the destination location may be extended from the location measured by the active location device by using additional measurement devices, for example a forklift height sensor. A further embodiment utilizes RFID or barcode technology for the passive tag and may utilize near field positioning technology for the active location device.

    摘要翻译: 一种用于通过使用与该移动者相关联的定位设备跟踪该资产的移动者并使用与该移动者相关联的识别阅读器识别资产以及与该资产相关联的被动识别标签来识别和定位资产的系统和方法。 一个移动者可能会移动许多资产。 确定资产; 移动者然后将资产移动到目的地位置,从而确定移动者和资产位置。 然后可以将资产位置记录在存储器中。 目的地位置的测量可以通过使用附加的测量装置,例如叉车高度传感器,从由主动定位装置测量的位置延伸。 另一实施例将RFID或条形码技术用于无源标签,并且可以为主动定位设备利用近场定位技术。