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    DIELECTRIC TRAVELLING WAVE TIME DOMAIN BEAMFORMER
    2.
    发明申请
    DIELECTRIC TRAVELLING WAVE TIME DOMAIN BEAMFORMER 审中-公开

    公开(公告)号：US20200326607A1

    公开(公告)日：2020-10-15

    申请号：US16779965

    申请日：2020-02-03

    Applicant: AMI Research & Development, LLC

    Inventor： John T. Apostolos ,  William B. Mouyos ,  James Logan

    IPC: G02F1/295 ,  G01S7/481 ,  H01P3/16 ,  G02B26/08 ,  G02B6/42 ,  H01L31/054 ,  G02B26/00 ,  G01S17/42 ,  H04N5/232

    Abstract: A scanning Dielectric Travelling Wave Array (DTWA) device suitable for use as a wideband, tunable, two-dimensional beamformer. The device is formed from a set of planar waveguides, elongated waveguide sections and/or progressive delay layers. By controlling the index of refraction (ε) of the waveguides, waveguide sections, and/or progressive delay layers, the device to aim at a particular angle of incidence of energy arriving on the top face, in both azimuth and elevation. These indi(cies) of refraction may be controlled with a set of varactors. By observing a constraint on the size of the waveguides as related to the bandwidth of the signals of interest, the waveguide can to receive from or transmit to different directions at the same time. The varactors may be provided by continuous strips of material disposed along the top and bottom of each waveguide section, or as a set of discrete controllable sections distributed along the primary axis of each waveguide section. Pairs of adjacent waveguide sections may be fed to provide complementary propagation modes, such as TE1 and TM1 modes. The pair of waveguide sections may be driven in quadrature to provide greater control over the axial ratio.

    Fingerprint based smartphone user verification
    7.
    发明授权
    Fingerprint based smartphone user verification 有权
    基于指纹的智能手机用户验证

    公开(公告)号：US09432366B2

    公开(公告)日：2016-08-30

    申请号：US14231935

    申请日：2014-04-01

    Applicant: AMI Research & Development, LLC

    Inventor： John T. Apostolos ,  William Mouyos ,  Judy Feng ,  Dwayne T. Jeffrey

    IPC: G06F7/04 ,  G06F12/00 ,  G06F12/14 ,  G06F13/00 ,  G06F17/30 ,  G11C7/00 ,  H04L29/06 ,  H04W12/06 ,  H04W88/02

    CPC classification number: H04L63/0861 ,  H04W12/06 ,  H04W88/02

    Abstract: A touch screen, now incorporated in most smart phones, presents an effective and transparent method to incorporate continuous active user verification schemes. The projected capacitive grid structure can be used to capture enough information to verify that a valid user currently has possession of the mobile device, even while the user is not consciously engaged in an active verification interface. Further processing, such as habitual gesture recognition, can augment the process.

    Abstract translation: 大多数智能手机中的触摸屏都是一种有效和透明的方法，可以结合连续的活动用户验证方案。 投影电容网格结构可用于捕获足够的信息以验证有效用户当前拥有移动设备，即使用户没有意识地参与活动验证界面。 进一步的处理，如习惯性手势识别，可以增加过程。

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