Phase identification display method

    公开(公告)号:US10976349B1

    公开(公告)日:2021-04-13

    申请号:US17091703

    申请日:2020-11-06

    Abstract: Methods are described to provide a new and improved display of phase identification measurements in a three-phase power distribution network, that is easier and more intuitive to interpret and define tagging reference phase. A short sequence of individual phase measurements are displayed as dots inside a static phase attribute display circle. The 3 primary, 12 secondary, and 6 three-phase attributes are displayed around the outside of the phase circle. When using a touch screen Smartphone or Tablet display device, the user simply touches inside the phase circle to rotate the dots around the center of the phase circle, so they line up with the known conductor phase attribute. This rotation defines the tagging reference phase for the circuit.

    COFDM using pseudo orthogonal QPSK coding
    3.
    发明授权
    COFDM using pseudo orthogonal QPSK coding 有权
    COFDM使用伪正交QPSK编码

    公开(公告)号:US09065718B2

    公开(公告)日:2015-06-23

    申请号:US14449618

    申请日:2014-08-01

    Abstract: A Coded Orthogonal Frequency Division Multiplexing (COFDM) communication systems is implemented in which each subcarrier data stream is individually FEC encoded instead of FEC encoding the overall input data stream as implemented in conventional COFDM systems. Specifically, each subcarrier is independently encoded using pseudo orthogonal QPSK M-QAM FEC modulators, transmitted, and decoded using pseudo orthogonal QPSK M-QAM FEC demodulators. Multiplexers and demultiplexers randomize subcarrier symbols across all subcarriers to prevent contiguous subcarrier data errors due to fading or corruption by narrowband interference. This technology can be applied to many wireless and wired communication systems including wireless underwater RF communications.

    Abstract translation: 实现编码正交频分复用(COFDM)通信系统,其中每个子载波数据流被单独地FEC编码,而不是如在常规COFDM系统中实现的整体输入数据流的FEC编码。 具体地,使用伪正交QPSK M-QAM FEC调制器来独立编码每个副载波,使用伪正交QPSK M-QAM FEC解调器进行发送和解码。 多路复用器和解复用器在所有子载波上随机化子载波符号,以防止由于窄带干扰而导致的衰落或损坏引起的连续副载波数据错误。 该技术可以应用于许多无线和有线通信系统,包括无线水下RF通信。

    Three dimensional radar method and apparatus
    4.
    发明授权
    Three dimensional radar method and apparatus 有权
    三维雷达方法和装置

    公开(公告)号:US08723719B1

    公开(公告)日:2014-05-13

    申请号:US13889505

    申请日:2013-05-08

    Abstract: A bistatic radar receiver is centrally located within an array of multiple bistatic transmitters at an airport to precisely determine bird positions and altitudes. Bird target reflections from multiple transmitters are received by the radar receiver. Target location is determined by the transmitter location, receiver location, and measured transmitter-to-target-to-receiver ranges. Target position and altitude accuracy is similar to GPS. The radar receiver antenna is composed of a vertical array of elements and rotated 360 degrees in azimuth. The output of each element is downconverted, digitized, and digitally beamformed to provide multiple simultaneous antenna beams each electronically scanned in elevation. When bistatic transmitters cannot be deployed, a narrow-azimuth wide-elevation transmit antenna beam is overlapped with a wide-azimuth narrow-elevation receive antenna beam electronically scanned in elevation to provide a composite narrow azimuth and elevation beamwidth.

    Abstract translation: 一个双基地雷达接收器位于机场的多个双基地发射机的阵列中央,以精确地确定鸟的位置和高度。 来自多个发射机的鸟目标反射被雷达接收机接收。 目标位置由发射机位置,接收机位置和测量的发射机到目标到接收机的范围确定。 目标位置和高度精度类似于GPS。 雷达接收天线由垂直阵列阵列组成,方位360度旋转。 每个元件的输出被下变频,数字化和数字波束成形,以提供多个同时天线波束,每个电子束以高程电子扫描。 当双稳态发射机不能部署时,窄方位广域发射天线波束与在仰角电子扫描的宽方位角窄仰角接收天线波束重叠,以提供复合窄方位角和仰角波束宽度。

    Trailer hitching and backing precision guidance system method and apparatus
    5.
    发明授权
    Trailer hitching and backing precision guidance system method and apparatus 有权
    拖车挂钩和背衬精密制导系统的方法和装置

    公开(公告)号:US08038166B1

    公开(公告)日:2011-10-18

    申请号:US12462683

    申请日:2009-08-08

    CPC classification number: B60D1/36 B60D1/06 B60D1/245 B60D1/30 B60D1/58

    Abstract: A target unit mounted on vehicle hitch ball contains a known object target and an optical unit mounted on trailer hitch socket contains an optical sensor. A real image of known object target is projected onto image plane of optical sensor. Vehicle hitching distance and offset from optical axis, normal to image plane origin, is related to real image size and offset from image plane origin respectively. Distance and offset are displayed to driver in the form of remaining distance and relative steering commands.

    Abstract translation: 安装在车辆搭接球上的目标单元包含已知的目标物体,并且安装在拖车吊架上的光学单元包含光学传感器。 将已知物体目标的真实图像投影到光学传感器的图像平面上。 车辆挂钩距离和从光轴偏移,垂直于图像平面原点,分别与实际图像尺寸和偏离图像平面原点有关。 距离和偏移以剩余距离和相对转向指令的形式显示给驾驶员。

    Artificial buoyancy method and apparatus

    公开(公告)号:US11472537B2

    公开(公告)日:2022-10-18

    申请号:US17395767

    申请日:2021-08-06

    Abstract: Lifting devices are described that provide aeronautical lift by either pushing air sideways off its top surface, or by pulling away from top surface air, without changing upward air pressure on its bottom surface. In a first implementation, a pyramid shaped structure is composed of a stack of thin sections whose dimensions are rapidly extended and retracted using ultrasonic movements. Top surface air is pushed sideways when extended followed by momentary low pressure when retracted, thus providing lift. In a second implementation, a rapidly rotating lifting device is composed of a stack of thin round teethed plates, resembling circular saw blades, in which the diameter of each upper plate is slightly smaller than each lower plate. This device also creates lift as teeth push air sideways and gaps between teeth create momentary low pressure. In a third implementation, a lifting device top surface contains an array of MicroElectroMechanical Systems (MEMS) devices, such as Capacitive Micromachined Ultrasonic Transducers (CMUTs), which momentary produce lift by their upper pointing membranes rapidly pulling away from lifting device top surface air when oscillating at high frequency.

    COFDM Using Pseudo Orthogonal QPSK Coding
    7.
    发明申请
    COFDM Using Pseudo Orthogonal QPSK Coding 审中-公开
    COFDM使用伪正交QPSK编码

    公开(公告)号:US20150036759A1

    公开(公告)日:2015-02-05

    申请号:US14449618

    申请日:2014-08-01

    Abstract: A Coded Orthogonal Frequency Division Multiplexing (COFDM) communication systems is implemented in which each subcarrier data stream is individually FEC encoded instead of FEC encoding the overall input data stream as implemented in conventional COFDM systems. Specifically, each subcarrier is independently encoded using pseudo orthogonal QPSK M-QAM FEC modulators, transmitted, and decoded using pseudo orthogonal QPSK M-QAM FEC demodulators. Multiplexers and demultiplexers randomize subcarrier symbols across all subcarriers to prevent contiguous subcarrier data errors due to fading or corruption by narrowband interference. This technology can be applied to many wireless and wired communication systems including wireless underwater RF communications.

    Abstract translation: 实现编码正交频分复用(COFDM)通信系统,其中每个子载波数据流被单独地FEC编码,而不是如在常规COFDM系统中实现的整体输入数据流的FEC编码。 具体地,使用伪正交QPSK M-QAM FEC调制器来独立编码每个副载波,使用伪正交QPSK M-QAM FEC解调器进行发送和解码。 多路复用器和解复用器在所有子载波上随机化子载波符号,以防止由于窄带干扰而导致的衰落或损坏引起的连续副载波数据错误。 该技术可以应用于许多无线和有线通信系统,包括无线水下RF通信。

    Method and Apparatus for Phase Identification in a Three-Phase Power Distribution Network using Servers
    8.
    发明申请
    Method and Apparatus for Phase Identification in a Three-Phase Power Distribution Network using Servers 审中-公开
    使用服务器的三相配电网中相位识别的方法和装置

    公开(公告)号:US20150022180A1

    公开(公告)日:2015-01-22

    申请号:US13947480

    申请日:2013-07-22

    CPC classification number: G01R29/18 G01R25/00 G01R25/005

    Abstract: A remote phase identification system identifies the unknown phase attribute of any energized conductor within a three-phase power distribution network. A base station at a reference location obtains a reference phase each GPS second and stores it on one or more servers. A field probe at a remote location obtains an instantaneous phase measurement at a GPS second and communicates this phase to a field client. The field client communicates with the server either by wireless Internet or satellite modem to compare its field location phase measurement with the reference location phase measurement taken at the same GPS second. Field client tagging reference phase configuration files are automatically created for any circuit. Configuration files can be named, saved, and loaded and are used by the field client to identify and display the unknown field location phase attribute. A field client can be any personal computer, smartphone, or personal digital assistant.

    Abstract translation: 远程相位识别系统识别三相配电网络内任何通电导体的未知相位属性。 参考位置的基站获得每个GPS秒的参考相位,并将其存储在一个或多个服务器上。 在远程位置的现场探测器在GPS处获得瞬时相位测量,并将该阶段传送给现场客户端。 现场客户端通过无线因特网或卫星调制解调器与服务器进行通信,以将其现场定位相位测量与在相同GPS秒进行的参考位置相位测量进行比较。 为任何电路自动创建现场客户端标记参考相位配置文件。 配置文件可以命名,保存和加载,并由现场客户端用于识别和显示未知字段位置相位属性。 现场客户端可以是任何个人计算机,智能手机或个人数字助理。

    Three dimensional radar antenna method and apparatus
    9.
    发明授权
    Three dimensional radar antenna method and apparatus 有权
    三维雷达天线方法及装置

    公开(公告)号:US08558734B1

    公开(公告)日:2013-10-15

    申请号:US12804173

    申请日:2010-07-15

    Abstract: A ground based avian radar receive antenna is implemented using a vertically oriented offset parabolic cylindrical antenna. The desired azimuth beamwidth is determined by the width of the parabolic cylinder reflector surface and the desired elevation beamwidth by the height of the parabolic cylinder reflector surface. A vertical array of antenna elements is mounted along the vertical focal line to provide electronic scanning in elevation. Low sidelobe levels are obtained using tapered antenna element illumination. Low cost modular construction with high reflector accuracy is obtained by attaching a thin metal reflector to thin ribs machined or stamped in the shape of the parabolic cylinder reflector surface. The antenna is enclosed in a radome and mechanically rotated 360 degrees in azimuth.

    Abstract translation: 基于地面的鸟类雷达接收天线使用垂直取向的偏移抛物线圆柱形天线来实现。 所需的方位角波束宽度由抛物面圆筒反射器表面的宽度和所需的仰角波束宽度乘以抛物面圆筒反射器表面的高度来确定。 沿着垂直焦线安装垂直阵列的天线元件以提供电子扫描。 使用锥形天线元件照明获得低旁瓣电平。 通过将薄金属反射器附接到以抛物面圆筒反射器表面的形状加工或冲压的薄肋上,获得具有高反射器精度的低成本模块化结构。 将天线封闭在天线罩中,机械方向旋转360度。

    Aircraft bird strike avoidance method and apparatus using transponder
    10.
    发明授权
    Aircraft bird strike avoidance method and apparatus using transponder 有权
    飞机罢工避免方法和使用转发器的设备

    公开(公告)号:US08279109B1

    公开(公告)日:2012-10-02

    申请号:US12798154

    申请日:2010-03-29

    Abstract: An aircraft avian radar is implemented using an existing aircraft transponder, Mode S, or TCAS installation as the radar transmitter. To eliminate self jamming of low level avian target signals by high level transmitter signals, the ending period of the transmission signal is digitized and cross correlated with the ending period of reflected avian target signals received after the transmission signal has ended. In a first implementation, the current transponder antenna is used for both transmission and reception. In a second implementation, an external receive only antenna is mounted in a position that maximizes the transmit antenna to receive antenna isolation. In a third implementation, a signal canceller and sample of the transmit signal are used to cancel or null out as much transmit signal as possible that couples directly to the receive antenna.

    Abstract translation: 使用现有的飞机应答器,S型或TCAS安装作为雷达发射机实施飞机禽类雷达。 为了通过高电平发射机信号消除低级别禽类目标信号的自身干扰,传输信号的结束周期被数字化,并与传输信号结束后接收到的反射禽目标信号的结束周期交叉相关。 在第一实施例中,当前的发射机应答器天线用于发射和接收。 在第二实施例中,外部接收天线安装在使发射天线最大化以接收天线隔离的位置。 在第三实施例中,信号消除器和发送信号的采样被用于消除或消除尽可能多的直接耦合到接收天线的发送信号。

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