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15 条记录 (耗时 0.016 秒)

    Electronic fiber optic switch with optical interconnect
    2.
    发明授权
    Electronic fiber optic switch with optical interconnect 失效

    公开(公告)号：US07024070B2

    公开(公告)日：2006-04-04

    申请号：US09976857

    申请日：2001-10-12

    申请人： Brett A. Spivey ,  Richard B. Holmes

    发明人： Brett A. Spivey ,  Richard B. Holmes

    IPC分类号： G02B6/26 ,  H04B10/00

    CPC分类号： G02B6/356 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/3586 ,  G02B6/359 ,  G02B26/0833 ,  H04Q11/0005 ,  H04Q2011/0024 ,  H04Q2011/0039

    摘要： A large fiber optic switch system with a free-space optical interconnection configuration. The switch system comprises a plurality of individual switch units, each individual switch unit having a plurality of electronic multi-switch switches each multi-switch switch being re-configurable upon command of a computer processor and having a plurality of electronic input ports and electronics output ports. A first portion of these input ports and a first portion of these output ports are connected directly or indirectly to incoming and outgoing communication lines. A second portion of the output ports is connected to an electronic driver unit that drives an optical emitter array. Each emitter in the emitter array produces a light beam for carrying an optical communication signal. A second portion of the input ports of each of the multi-switch switches is connected to a detector array comprising an array of optical detectors for detecting optical signals and converting the signals to electronic signals and an array of amplifiers for amplifying the signals. The switch comprises a free space optical interconnection configuration for directing each of the light beams which are produced by said emitters of each emitter array in each switch unit to one of the optical detectors in each of the detector arrays of the other switch units. In a preferred embodiment signals incoming into a port of the first portion of the input ports of a first switch unit may be switched by the multi-switch to an emitter in the first switch unit which emits a light beam which is directed at one of the optical detectors of another switch unit. An optical detector of the other switch unit produces an electronic signal corresponding to the optical communication signals and the electronic signal is directed by the multi-switch switch of the other switch unit to one of the output ports from which the signal proceeds to a corresponding outgoing communication lines. In a preferred embodiment the optical interconnection configuration includes a mirror configured to direct beams from each of the emitters to one of the optical detectors.

    Acoustic imaging device
    3.
    发明授权
    Acoustic imaging device 失效
    声学成像装置

    公开(公告)号：US5435312A

    公开(公告)日：1995-07-25

    申请号：US232741

    申请日：1994-04-25

    申请人： Brett A. Spivey ,  Peter I. Martin ,  Douglas A. Palmer ,  Greg Otto

    发明人： Brett A. Spivey ,  Peter I. Martin ,  Douglas A. Palmer ,  Greg Otto

    IPC分类号： A61B8/13 ,  A61B8/00 ,  G01N29/00

    CPC分类号： A61B8/13 ,  A61B8/463

    摘要： This invention provides an acoustic imaging device which utilizes scattered acoustic wave information to produce an image. The system consists of an array of acoustic transducers which at least partially encircle a medium to be imaged. The medium is sequentially insonified by each transducer with an acoustic signal comprised of at least one discrete frequency. The acoustic signal scatters from the medium and is detected by the remaining transducers. A data set representing the phase and amplitude of each discrete frequency at each transducer is acquired and used by a computer to calculate an image of the medium. Images acquired and calculated at each identifiable discrete frequency are combined in various ways in order to improve the quality of the final image of the medium.

    摘要翻译： 本发明提供一种使用散射声波信息产生图像的声学成像装置。 该系统由至少部分地环绕要成像的介质的声换能器阵列组成。 介质由每个换能器顺序地由包括至少一个离散频率的声信号进行增强。 声信号从介质散射并由剩余的换能器检测。 表示每个换能器处的每个离散频率的相位和幅度的数据集被计算机获取并用于计算介质的图像。 以各种可识别的离散频率获取和计算的图像以各种方式组合，以便提高介质的最终图像的质量。

    Acoustic imaging device
    4.
    发明授权
    Acoustic imaging device 失效
    声学成像装置

    公开(公告)号：US5417218A

    公开(公告)日：1995-05-23

    申请号：US232740

    申请日：1994-04-25

    申请人： Brett A. Spivey ,  Peter J. martin ,  Douglas A. Palmer ,  Robert Cram

    发明人： Brett A. Spivey ,  Peter J. martin ,  Douglas A. Palmer ,  Robert Cram

    IPC分类号： A61B8/13 ,  A61B8/00 ,  G01N29/00

    CPC分类号： A61B8/13 ,  A61B8/463 ,  A61B8/5223

    摘要： This invention provides an acoustic imaging device in which a large number of transducers are spaced less than a half acoustic wavelength apart on a circle surrounding an object to be imaged. A signal generator generates discrete acoustic frequencies in the range of 100 kHz to 1.5 MHz. Multiplexer systems are provided to permit each transducer, one at a time, to broadcast a signal while the broadcast signal is detected by the other transducers. Electronic equipment records the detected signal and from the recorded information phase and amplitude data is calculated with respect to each transducer location. A computer programmed with an algorithm computes images of slices through the object using the phase and amplitude data. We utilize single frequency, steady-state acoustic signals which enables the accurate determination of the phase and amplitude of the acoustic signals at each receiver transducer. Finally, in order to reduce the data acquisition time and reduce motion artifacts, we utilize acoustic signals comprised of a plurality of discrete indentifiable frequencies each frequency providing an image of the medium.

    摘要翻译： 本发明提供了一种声学成像装置，其中大量的换能器在围绕被成像对象的圆周上间隔小于半声波。 信号发生器产生在100kHz至1.5MHz范围内的离散声频。 提供多路复用器系统以允许每个换能器一个一个地广播信号，同时广播信号被其他换能器检测到。 电子设备记录检测到的信号，并根据记录的信息相位计算振幅数据。 使用算法编程的计算机使用相位和幅度数据计算通过对象的切片的图像。 我们利用单频，稳态声信号，可以准确确定每个接收机传感器的声信号的相位和幅度。 最后，为了减少数据采集时间并减少运动伪像，我们利用由多个离散的可识别频率组成的声信号，每个频率提供介质的图像。

    Acoustic imaging device
    5.
    发明授权
    Acoustic imaging device 失效
    声学成像装置

    公开(公告)号：US5305752A

    公开(公告)日：1994-04-26

    申请号：US891851

    申请日：1992-06-01

    申请人： Brett A. Spivey ,  Peter J. Martin ,  Douglas A. Palmer

    发明人： Brett A. Spivey ,  Peter J. Martin ,  Douglas A. Palmer

    IPC分类号： A61B8/13 ,  A61B8/00

    CPC分类号： A61B8/463 ,  A61B8/13

    摘要： An acoustic imaging device is disclosed which utilizes mathematical inversion of scattered acoustic wave information to produce an image. A preferred embodiment of the device consists of a ring of acoustic transducers which encircle a medium to be imaged. The medium is sequentially insonified by each transducer with subsequent reception of the scattered waves by the remaining transducers. Explicit mathematical inversion of the scattered wave data using a remap algorithm results in a two-dimensional map of the scattering potential of the medium. Sound speed and density maps can be obtained from a map of the scattering potential. This device is utilizable for imaging of human tissue in vivo and in vitro, and for nondestructive evaluation of materials.

    摘要翻译： 公开了一种使用散射声波信息的数学反演来产生图像的声学成像装置。 该装置的一个优选实施例由围绕要成像的介质的声换能器环组成。 介质由每个换能器顺序地被加强，随后由剩余的换能器接收散射波。 使用重映射算法的散射波数据的显式数学反演导致介质散射电位的二维图。 声速和密度图可以从散射电位的图中获得。 该装置可用于体内和体外对人体组织的成像，并可用于材料的非破坏性评估。

    Wide field optical system
    7.
    发明授权
    Wide field optical system 失效
    宽视场光学系统

    公开(公告)号：US4883348A

    公开(公告)日：1989-11-28

    申请号：US204902

    申请日：1988-06-10

    申请人： Brett A. Spivey ,  Brian W. Neff ,  Murray R. Dunn

    发明人： Brett A. Spivey ,  Brian W. Neff ,  Murray R. Dunn

    IPC分类号： G02B17/02 ,  G02B17/06 ,  G02B23/06 ,  G02B26/10

    CPC分类号： G02B26/10 ,  G02B17/02 ,  G02B17/061 ,  G02B23/06

    摘要： A telescope with a spherical primary mirror and a movable secondary optical element which is positioned at various locations near the focal plane of the primary mirror and directs a portion of the focused radiation to a coude optics device at the center of curvature of the primary mirror. The coude optics device reflects the focused radiation to a detector. In a preferred embodiment of this invention a field of several degrees can be scanned very rapidly while viewing much smaller object fields.

    摘要翻译： 具有球形初级反射镜和可移动次级光学元件的望远镜，其位于主反射镜的焦平面附近的各个位置，并将聚焦辐射的一部分引导到主镜的曲率中心处的光学设备。 粗糙光学器件将聚焦的辐射反射到检测器。 在本发明的优选实施例中，可以非常快速地扫描几度的场，同时观察更小的对象场。

    Flat panel display device using thin diamond electron beam amplifier
    9.
    发明授权
    Flat panel display device using thin diamond electron beam amplifier 失效
    平板显示设备采用薄金刚石电子束放大器

    公开(公告)号：US6005351A

    公开(公告)日：1999-12-21

    申请号：US856381

    申请日：1997-05-14

    申请人： Lawrence H. Sverdrup ,  Shiow-Hwa Lin ,  Eric J. Korevaar ,  Brett A. Spivey ,  Kenneth Y. Tang

    发明人： Lawrence H. Sverdrup ,  Shiow-Hwa Lin ,  Eric J. Korevaar ,  Brett A. Spivey ,  Kenneth Y. Tang

    IPC分类号： H01J1/32 ,  H01J29/48 ,  H01J43/02 ,  H03F3/54

    CPC分类号： H01J1/32 ,  H01J29/482 ,  H01J43/02

    摘要： A thin diamond electron beam amplifier. The illumination side of a thin diamond is illuminated by a seed electron beam creating electron-hole pairs in the diamond. A voltage potential provides an electric field between the illumination side of the diamond and an acceleration grid opposite the emission side of the diamond. Electrons released in the diamond are accelerated through the emission side of the diamond toward the acceleration grid creating an amplified electron beam. Preferred embodiments of the present invention are useful to provide flat panel displays and replacements for thermionic cathodes, cathode ray tubes, fast photodetectors and image intensifiers.

    摘要翻译： 薄金刚石电子束放大器。 金刚石的照明面由种子电子束照射，在金刚石中产生电子 - 空穴对。 电压电位在金刚石的照明侧和与金刚石的发射侧相对的加速栅之间提供电场。 在金刚石中释放的电子通过金刚石的发射侧朝加速度格栅加速，产生放大的电子束。 本发明的优选实施例可用于提供用于热阴极阴极射线管，快速光电检测器和图像增强器的平板显示器和替代物。