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73 条记录 (耗时 0.044 秒)

    System and method for zero intermediate frequency filtering of information communicated in wireless networks
    64.
    发明授权
    System and method for zero intermediate frequency filtering of information communicated in wireless networks 有权
    在无线网络中传送的信息的零中频滤波系统和方法

    公开(公告)号：US08280337B2

    公开(公告)日：2012-10-02

    申请号：US13017378

    申请日：2011-01-31

    申请人： Marc Dubois ,  Stephen Rayment ,  Andrew Keir ,  Kieran Parsons

    发明人： Marc Dubois ,  Stephen Rayment ,  Andrew Keir ,  Kieran Parsons

    IPC分类号： H04B1/10

    CPC分类号： H04B1/30

    摘要： A circuit for communicating information in a wireless network includes a filtering circuit in communication with a zero intermediate frequency (ZIF) transceiver circuit. The filtering circuit includes a first mixer in communication with an output of the ZIF transceiver circuit. The filtering circuit includes a first Surface Acoustic Wave (SAW) filter circuit in communication with an output of the first mixer. The filtering circuit includes a second mixer in communication with an output of the first SAW filter circuit. The filtering circuit includes a third mixer, and a second SAW filter circuit in communication with an output of the third mixer. The filtering circuit includes a fourth mixer in communication with an output of the second SAW filter circuit and an input of the ZIF transceiver circuit. The filtering circuit also includes a local oscillator circuit in communication with the first, second, third and fourth mixers.

    摘要翻译： 用于在无线网络中传送信息的电路包括与零中频（ZIF）收发器电路通信的滤波电路。 滤波电路包括与ZIF收发器电路的输出通信的第一混频器。 滤波电路包括与第一混频器的输出通信的第一表面声波（SAW）滤波器电路。 滤波电路包括与第一SAW滤波器电路的输出通信的第二混频器。 滤波电路包括第三混频器和与第三混频器的输出通信的第二SAW滤波器电路。 滤波电路包括与第二SAW滤波器电路的输出和ZIF收发器电路的输入通信的第四混频器。 滤波电路还包括与第一，第二，第三和第四混频器通信的本地振荡器电路。

    System and method for zero intermediate frequency filtering of information communicated in wireless networks
    66.
    发明申请
    System and method for zero intermediate frequency filtering of information communicated in wireless networks 有权
    在无线网络中传送的信息的零中频滤波系统和方法

    公开(公告)号：US20070238419A1

    公开(公告)日：2007-10-11

    申请号：US11399536

    申请日：2006-04-07

    申请人： Marc Dubois ,  Stephen Rayment ,  Andrew Keir ,  Kieran Parsons

    发明人： Marc Dubois ,  Stephen Rayment ,  Andrew Keir ,  Kieran Parsons

    IPC分类号： H04B1/44

    CPC分类号： H04B1/30

    摘要： A circuit for communicating information in a wireless network includes a filtering circuit in communication with a zero intermediate frequency (ZIF) transceiver circuit. The filtering circuit includes a first mixer in communication with an output of the ZIF transceiver circuit. The filtering circuit includes a first Surface Acoustic Wave (SAW) filter circuit in communication with an output of the first mixer. The filtering circuit includes a second mixer in communication with an output of the first SAW filter circuit. The filtering circuit includes a third mixer, and a second SAW filter circuit in communication with an output of the third mixer. The filtering circuit includes a fourth mixer in communication with an output of the second SAW filter circuit and an input of the ZIF transceiver circuit. The filtering circuit also includes a local oscillator circuit in communication with the first, second, third and fourth mixers.

    摘要翻译： 用于在无线网络中传送信息的电路包括与零中频（ZIF）收发器电路通信的滤波电路。 滤波电路包括与ZIF收发器电路的输出通信的第一混频器。 滤波电路包括与第一混频器的输出通信的第一表面声波（SAW）滤波器电路。 滤波电路包括与第一SAW滤波器电路的输出通信的第二混频器。 滤波电路包括第三混频器和与第三混频器的输出通信的第二SAW滤波器电路。 滤波电路包括与第二SAW滤波器电路的输出和ZIF收发器电路的输入通信的第四混频器。 滤波电路还包括与第一，第二，第三和第四混频器通信的本地振荡器电路。

    System and method to inspect components having non-parallel surfaces
    67.
    发明申请
    System and method to inspect components having non-parallel surfaces 有权
    检查具有不平行表面的部件的系统和方法

    公开(公告)号：US20060215174A1

    公开(公告)日：2006-09-28

    申请号：US11089902

    申请日：2005-03-25

    申请人： Marc Dubois ,  Thomas Drake

    发明人： Marc Dubois ,  Thomas Drake

    IPC分类号： G01B11/02

    CPC分类号： G01N21/1717 ,  G01H9/00 ,  G01N29/2418 ,  G01N2291/0423 ,  G01N2291/0425 ,  G01N2291/044

    摘要： The present invention provides a method to detect and generate ultrasonic displacements at a remote target for ultrasonic inspection. This method involves generating an ultrasonic wave at a first location on an upper surface of the remote target. This ultrasonic wave is reflected from interior surfaces within the remote target wherein the reflected ultrasonic wave produces ultrasonic displacement at a second location on the upper surface of the remote target. A detection laser beam is generated and directed to the second location on the upper surface of the remote target. Here, the detection laser beam is scattered by the ultrasonic displacements to produce phase-modulated light. This phase-modulated light is collected and processed to obtain data representative of the ultrasonic surface displacements. Further, these ultrasonic displacements, when processed, will yield inspection information associated with the interior of the remote target.

    摘要翻译： 本发明提供一种在超声波检查的远程目标处检测和产生超声波位移的方法。 该方法涉及在远程目标的上表面上的第一位置处产生超声波。 该超声波从远程目标内的内表面反射，其中反射的超声波在远程目标的上表面上的第二位置处产生超声波位移。 生成检测激光束并将其引导到远程目标的上表面上的第二位置。 这里，检测激光束被超声波位移散射以产生相位调制光。 收集并处理该相位调制光以获得代表超声表面位移的数据。 此外，这些超声波位移在被处理时将产生与远程目标的内部相关联的检查信息。

    Holographic storage medium
    69.
    发明申请
    Holographic storage medium 失效
    全息存储介质

    公开(公告)号：US20050277747A1

    公开(公告)日：2005-12-15

    申请号：US10869243

    申请日：2004-06-15

    申请人： Michael McLaughlin ,  Marc Dubois ,  James Pickett ,  Peifang Tian

    发明人： Michael McLaughlin ,  Marc Dubois ,  James Pickett ,  Peifang Tian

    IPC分类号： G03F7/00 ,  G11B7/0065 ,  G11B7/245 ,  C08L83/00

    CPC分类号： G11B7/245

    摘要： Holographic storage mediums, methods for producing the storage medium, methods for storing data in the holographic storage medium, and optical storage reading methods are described herein. The holographic storage medium can be formed from a composition comprising a thermally crosslinked polysiloxane binder; a photoactive material; and a photo-initiator, wherein the photoactive material has a concentration that remains about the same before and after a thermal cure process to form the thermally crosslinked polysiloxane binder.

    摘要翻译： 本文描述了全息存储介质，用于产生存储介质的方法，用于在全息存储介质中存储数据的方法和光学存储读取方法。 全息存储介质可以由包含热交联聚硅氧烷粘合剂的组合物形成; 光敏材料; 和光引发剂，其中光活性材料在热固化过程之前和之后具有保持大致相同的浓度以形成热交联的聚硅氧烷粘合剂。

    System and method to reduce laser noise for improved interferometric laser ultrasound detection
    70.
    发明申请
    System and method to reduce laser noise for improved interferometric laser ultrasound detection 有权
    减少激光噪声的系统和方法，用于改进干涉激光超声检测

    公开(公告)号：US20050099634A1

    公开(公告)日：2005-05-12

    申请号：US10703655

    申请日：2003-11-07

    申请人： Marc Dubois ,  Kent Burr ,  Thomas Drake ,  Peter Lorraine

    发明人： Marc Dubois ,  Kent Burr ,  Thomas Drake ,  Peter Lorraine

    IPC分类号： G01B9/02 ,  G01H9/00

    CPC分类号： G01H9/00

    摘要： The present invention provides an optical filter assembly that reduces the phase and amplitude noise of a detection laser used to detect ultrasonic displacements. The filtered detection laser is directed to the surface of a remote target. Ultrasonic displacements at the surface scatter the filtered detection laser. Collection optics then gather phase modulated light scattered by the surface and direct the phase modulated light to an optical processor to produce a signal representative of the ultrasonic displacements with an improved SNR. Additional processors may determine the structure of the remote target.

    摘要翻译： 本发明提供一种滤光器组件，其减少用于检测超声波位移的检测激光器的相位和幅度噪声。 滤波的检测激光器被引导到远程目标的表面。 表面上的超声波位移散射了滤波的检测激光。 收集光学器件然后收集由表面散射的相位调制光，并将相位调制光引导到光学处理器以产生表示具有改善的SNR的超声波位移的信号。 附加处理器可以确定远程目标的结构。