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    • 41. 发明授权
    • Receiver using an approximated dipole signal
    • 接收机使用近似偶极信号
    • US09581717B2
    • 2017-02-28
    • US14186310
    • 2014-02-21
    • Merlin Technology, Inc.
    • Guenter W. BruneJohn E. MercerAlbert W. ChauRudolf Zeller
    • G01V3/08H01Q1/04H01Q7/00H01Q9/28
    • G01V3/08H01Q1/04H01Q7/00H01Q9/28
    • Location determination is performed using a transmitter including an elongated generally planar loop antenna defining an elongation axis. The elongation axis is positioned along at least a portion of a path. A magnetic field is then generated which approximates a dipole field. Certain characteristics of the magnetic field are then determined at a receiving position radially displaced from the antenna elongation axis. Using the determined certain characteristics, at least one orientation parameter is established which characterizes a positional relationship between the receiving position and the antenna on the path. The magnetic field may be transmitted as a monotone single phase signal. The orientation parameter may be a radial offset and/or an angular orientation between the receiving position and the antenna on the path. The antenna of the transmitter may be inserted into a first borehole to transmit the magnetic field to a receiver inserted into a second borehole.
    • 使用包括限定伸长轴的细长大体上平面的环形天线的发射机来执行位置确定。 伸长轴沿着路径的至少一部分定位。 然后产生近似偶极子场的磁场。 然后在从天线伸长轴径向偏移的接收位置处确定磁场的某些特性。 使用确定的某些特征,建立表征路径上的接收位置和天线之间的位置关系的至少一个取向参数。 磁场可以作为单调单相信号传输。 取向参数可以是路径上的接收位置和天线之间的径向偏移和/或角度取向。 发射器的天线可以插入第一钻孔中,以将磁场传输到插入第二钻孔的接收器。
    • 42. 发明申请
    • MARINE OBJECT ABLE TO FLOAT ON WATER, COMPRISING A DEPLOYABLE DEVICE FOR EMITTING AND/OR RECEIVING ELECTROMAGNETIC WAVES
    • 海上浮动物体可以在水面上流动,包括用于发射和/或接收电磁波的可配置装置
    • US20160194065A1
    • 2016-07-07
    • US14909588
    • 2014-07-30
    • THALES
    • Jean-Marcelin PASCAL
    • B63G8/00H01Q1/04
    • B63G8/001B63B2022/006B63B2201/20B63G2008/002B63G2008/004B63G2008/005G01V1/3835H01Q1/04
    • A marine object able to float on the surface of the water comprising a body delimited at least partially by a curved surface (4) comprising a housing (6) emerging on said curved surface (4), said marine object (1) comprising a deployable emitting/receiving device comprising an arm (8) on which are mounted means for emitting and/or receiving electromagnetic waves, said arm (8) being linked to said body (3) by means of an articulation with a degree of freedom in rotation about an axis of rotation, the articulation allowing the arm (8) to pivot reversibly between a retracted position, in which the arm (8) is housed in the housing and is flush with the curved surface (4), and a deployed position in which the arm (8) extends out of said housing (6), the arm comprising a first surface, called outer surface, the outer surface being curved along the length of the arm (8), said outer surface being flush with said curved surface (4) and following the curve of said curved surface (4) when the arm (8) is in its retracted position.
    • 能够漂浮在水表面上的海洋物体包括至少部分地被包括在所述弯曲表面(4)上的壳体(6)的弯曲表面(4)限定的主体,所述海洋物体(1)包括可展开的 发射/接收装置,包括臂(8),其上安装有用于发射和/或接收电磁波的装置,所述臂(8)通过关节旋转的自由度的关节连接到所述主体(3) 旋转轴线,使臂(8)能够在缩回位置之间可逆地枢转,所述缩回位置中臂(8)容纳在壳体中并且与弯曲表面(4)齐平,并且展开位置 臂(8)从所述壳体(6)延伸出来,所述臂包括称为外表面的第一表面,所述外表面沿着所述臂(8)的长度弯曲,所述外表面与所述弯曲表面齐平 4)并且当所述臂处于所述弯曲表面(4)的曲线之后 (8)处于其缩回位置。
    • 44. 发明授权
    • Pivoting underwater RFID antenna assembly
    • 透视水下RFID天线组件
    • US09331375B2
    • 2016-05-03
    • US13925597
    • 2013-06-24
    • West Fork Environmental, Inc.
    • N. Phil PetersonKyle B. Meier
    • H01Q1/34H01Q1/04H01Q1/22H01Q1/42A01K11/00G06K7/10A01K61/00
    • H01Q1/04A01K11/006A01K61/90G06K7/10316G06K7/10356H01Q1/2216H01Q1/42
    • An underwater antenna assembly (or array thereof) suitable for subsurface RFID tag interrogation in flowing water such as a river. In preferred embodiments, the antenna interrogates RFID tags implanted in aquatic species. The antenna resides in an elongate antenna housing whose cross-sectional shape is preferably a hydrodynamic teardrop shape. A first end of the housing is linked to a pivoting mechanism such that when the pivoting mechanism is held substantially stationary with respect to the water flow, the second end of the housing is free to rotate generally about the first end in a substantially vertical plane parallel to the water flow direction. The length of the antenna housing is advantageously selected to enable the antenna to monitor for signals across substantially the entire water depth.
    • 适用于诸如河流等水中的地下RFID标签询问的水下天线组件(或其阵列)。 在优选实施例中,天线询问植入水生物种的RFID标签。 天线位于细长的天线壳体中,其横截面形状优选为流体动力泪滴形状。 壳体的第一端连接到枢转机构,使得当枢转机构相对于水流保持基本上静止时,壳体的第二端大体围绕第一端自由旋转,基本垂直的平面平行 到水流方向。 有利地选择天线壳体的长度以使得天线能够监视基本上整个水深的信号。
    • 47. 发明授权
    • Nuclear magnetic resonance logging tool having an array of antennas
    • 具有天线阵列的核磁共振测井工具
    • US09201159B2
    • 2015-12-01
    • US13519647
    • 2010-06-16
    • Marian L. MorysKnizhnik SergeiRebecca C. JachmannRobert Epstein
    • Marian L. MorysKnizhnik SergeiRebecca C. JachmannRobert Epstein
    • G01V3/00G01V3/32H01Q1/04H01Q7/00H01Q21/24
    • G01V3/32H01Q1/04H01Q7/00H01Q21/24
    • Various disclosed nuclear magnetic resonance (NMR) logging systems and methods employ an array of antennas to provide increased resolution without sacrificing signal-to-noise ratio. Certain method embodiments include: establishing a static magnetic field (B0) with a tool moving along a borehole through a formation; concurrently driving a multiple antenna cells to produce a radio frequency field (B1) in said formation; measuring an individual response from each antenna cell as nuclear spins undergo precession in the formation; and determining at least one characteristic relaxation time of the formation based at least in part on the individual response. The individual responses can be associated with positions where the individual responses were measured, and the relaxation time can be determined from a combination of those responses associated with a given position. Certain responses may be excluded due to tool motion that degrades the measured response.
    • 各种公开的核磁共振(NMR)测井系统和方法采用天线阵列来提供增加的分辨率而不牺牲信噪比。 某些方法实施例包括:建立具有工具沿井眼移动通过地层的工具的静态磁场(B0); 同时驱动多个天线单元以在所述地层中产生射频场(B1); 测量来自每个天线单元的个体响应,因为核自旋在地层中进行进动; 以及至少部分地基于所述个体响应来确定所述地层的至少一个特征弛豫时间。 个体反应可以与测量个体反应的位置相关联,并且可以从与给定位置相关联的那些反应的组合来确定弛豫时间。 可能由于工具运动而排除某些响应,这会降低测量的响应。