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    System and method for detecting constant-datagram-rate network traffic indicative of an unmanned aerial vehicle
    1.
    发明授权
    System and method for detecting constant-datagram-rate network traffic indicative of an unmanned aerial vehicle 有权

    公开(公告)号：US11539632B2

    公开(公告)日：2022-12-27

    申请号：US17187879

    申请日：2021-02-28

    申请人： Research Electronics International, LLC

    发明人： Thomas H. Jones ,  Ross Alan Binkley

    IPC分类号： H04L47/2441 ,  G08G5/00 ,  H04W84/12

    摘要： A system and method for detecting unmanned aerial vehicles (UAV) includes capturing a set of wireless data traffic from a wireless transmission and performing frequency spectrum analysis on datagram arrival times to classify the wireless data traffic based upon potential constant-datagram-rate data content that may be indicative that at least a portion of the wireless data traffic is emanating from a UAV. The wireless data traffic may be captured from one or more Wi-Fi receivers and sorted based upon transmission parameters prior to performing the frequency spectrum analysis. Detected peak frequencies may be used to determine if any constant-datagram-rate traffic within the wireless data traffic potentially contains data traffic streaming from a UAV. Directional antennas and/or a phased array of antennas can be used to determine the direction of propagation of the wireless transmission and further classify the wireless data traffic based on potential emanation from a UAV.

    Technology to control a model and balance support system's dynamics and isolate the balance as needed to increase test facilities productivity
    2.
    发明授权
    Technology to control a model and balance support system's dynamics and isolate the balance as needed to increase test facilities productivity 有权

    公开(公告)号：US11131598B2

    公开(公告)日：2021-09-28

    申请号：US15669098

    申请日：2017-08-04

    申请人： Ahmad D. Vakili

    发明人： Ahmad D. Vakili

    IPC分类号： G01M9/06 ,  G01M9/04 ,  B64F5/60 ,  G01M9/08

    摘要： A balance protection system for a wind tunnel test system that includes a balance component, a model component connected to the balance component and a sting component connected to the balance component is disclosed. The balance protection system includes a first set of features on the model component that mate with a second of features on to the sting component. The clearances between the first and second set of features determine an amount of allowed movement of the model with respect to the balance. Actuators can be used to actively adjust the amount of clearance and respective allowed movement of the model with respect to the balance. Limiting movement of the model with respect to the balance protects the balance from damage caused by excessive forces applied to the model.

    System and method for detecting VOIP traffic
    3.
    发明授权
    System and method for detecting VOIP traffic 有权

    公开(公告)号：US10230821B2

    公开(公告)日：2019-03-12

    申请号：US14984188

    申请日：2015-12-30

    申请人： Research Electronics International

    发明人： Bruce R. Barsumian ,  Thomas H. Jones ,  Ross Alan Binkley

    IPC分类号： H04L12/26 ,  H04L29/08 ,  H04L1/06 ,  H04L12/24

    摘要： A system and method of classifying a set of internet protocol network data traffic as likely or unlikely to contain constant-packet-rate data or VoIP traffic using frequency spectrum analysis of data packet arrival times. The method is performed with an apparatus connected in-line on the network link from which the set of network data traffic is obtained. The network data traffic is presorted by packet size, source IP address, destination IP address, source port number, destination port number, or transport-layer protocol to limit the required analysis. A sliding window function is used to provide the time-domain input data to the frequency spectrum analysis. A threshold function is used to detect peaks in the calculated frequency spectrum that indicate constant-packet-rate traffic. An automated system preferably captures the network data traffic from one or more network links, immediately performs the frequency spectrum analysis on the data traffic and stores the results in memory for later access.

    Adaptive infrared retinoscopic device for detecting ocular aberrations
    6.
    发明授权
    Adaptive infrared retinoscopic device for detecting ocular aberrations 有权
    用于检测眼睛像差的自适应红外视网膜设备

    公开(公告)号：US09427152B2

    公开(公告)日：2016-08-30

    申请号：US14553956

    申请日：2014-11-25

    申请人： James Waller Lambuth Lewis

    发明人： James Waller Lambuth Lewis

    IPC分类号： A61B3/00 ,  A61B3/10 ,  A61B3/103 ,  A61B3/14

    CPC分类号： A61B3/103 ,  A61B3/14 ,  G06T7/0012 ,  G06T2207/10048 ,  G06T2207/20056 ,  G06T2207/30041

    摘要： An ocular system for detecting ocular abnormalities and conditions creates photorefractive digital images of a patient's retinal reflex. The system includes a computer control system, a two-dimensional array of infrared irradiation sources and a digital infrared image sensor. The amount of light provided by the array of irradiation sources is adjusted by the computer so that ocular signals from the image sensor are within a targeted range. Enhanced, adaptive, photorefraction is used to observe and measure the optical effects of Keratoconus. Multiple near infrared (NIR) sources are preferably used with the photorefractive configuration to quantitatively characterize the aberrations of the eye. The infrared light is invisible to a patient and makes the procedure more comfortable than current ocular examinations. A lens system is used to remove any low order aberrations present in the patient's eye and improve the detection sensitivity of the system.

    摘要翻译： 用于检测眼部异常和病症的眼睛系统产生患者视网膜反射的光折射数字图像。 该系统包括计算机控制系统，红外辐射源的二维阵列和数字红外图像传感器。 由计算机调节由辐射源阵列提供的光量，使得来自图像传感器的眼睛信号在目标范围内。 增强的自适应光折射用于观察和测量圆锥角膜的光学效应。 优选使用多个近红外（NIR）光源与光折射配置来定量地表征眼睛的像差。 红外光对患者是不可见的，使手术比目前的眼睛检查更舒适。 透镜系统用于去除患者眼睛中存在的任何低阶像差，并提高系统的检测灵敏度。