Aircraft engine face radar cross section analysis
    3.
    发明授权
    Aircraft engine face radar cross section analysis 有权
    飞机引擎面雷达截面分析

    公开(公告)号:US07424408B1

    公开(公告)日:2008-09-09

    申请号:US09610094

    申请日:2000-06-30

    CPC分类号: G01S7/4052

    摘要: An aircraft engine face radar cross section analysis is computed using a finite element based approach. A finite element model is only created for a periodic slice of the aircraft engine face. The system matrix of the finite element model is then transformed into a series of independent modes in a block diagonal matrix using a Discrete Fourier Transform. Each of the independent modes is then solved using an “infinite” pipe arrangement to remove the effects of rim scattering and the incident wave. The solved independent modes are summed together to determine the scattered electromagnetic field for the aircraft engine face. The scattered electromagnetic field is then used to calculate the radar cross section of the aircraft engine face.

    摘要翻译: 使用基于有限元的方法计算飞机发动机面雷达截面分析。 有限元模型仅在飞机发动机表面的周期性切片上产生。 然后使用离散傅立叶变换将有限元模型的系统矩阵转换成块对角矩阵中的一系列独立模式。 然后使用“无限”管道布置来解决每个独立模式,以消除边缘散射和入射波的影响。 解决的独立模式被总结在一起以确定飞机发动机面的散射电磁场。 然后使用散射电磁场来计算飞机发动机面的雷达横截面。

    Suppression of tinnitus
    5.
    发明申请
    Suppression of tinnitus 审中-公开
    抑制耳鸣

    公开(公告)号:US20050251226A1

    公开(公告)日:2005-11-10

    申请号:US11125949

    申请日:2005-05-09

    申请人: John D'Angelo

    发明人: John D'Angelo

    IPC分类号: A61F11/00 A61N1/18

    CPC分类号: A61F11/00 A61B5/128 H04R25/75

    摘要: The perception of sound in the absence of a stimulus external to one's own ear is commonly referred to as “tinnitus”. However, other sounds such as otoacoustic emissions, may occur in the absence of an external stimulus. These sounds may be audible or inaudible. A means of reducing such sounds is presented. For the audible case, the device first measures the sound and then injects a sound of proper frequency content thus canceling the tinnitus or otoacoustic emission. The inaudible case requires other means of sensing the perceived sound. Suppression of the noise perceived by one suffering from inaudible tinnitus is outlined. Such a response may be processed similar to the microphone signal acquired for the audible case. Sound of proper frequency content is then injected into the affected ear and the neurological response due to the generated sound would then cancel the inaudible tinnitus.

    摘要翻译: 在没有自己耳朵外部刺激的情况下,声音的感觉通常被称为“耳鸣”。 然而,在没有外部刺激的情况下可能会发生其他声音,如耳声发射。 这些声音听起来或听不见。 提出了减少这种声音的手段。 对于听觉情况,设备首先测量声音,然后注入适当频率内容的声音,从而消除耳鸣或耳声发射。 听不到的情况需要其他手段来感知感知的声音。 概述了一名患有听不见的耳鸣感觉到的噪音的抑制。 可以类似于为可听见的情况获得的麦克风信号来处理这样的响应。 然后将适当频率内容的声音注射到受影响的耳朵中,并且由于产生的声音引起的神经系统反应然后将取消听不到的耳鸣。

    Conductive network for parachute fabrics

    公开(公告)号:US10526093B1

    公开(公告)日:2020-01-07

    申请号:US16150232

    申请日:2018-10-02

    IPC分类号: B64D17/02 H05K9/00

    摘要: An apparatus comprising a conductive fabric configured integrate with a parachute, wherein when the conductive fabric is integrated with the parachute the conductive fabric is able to withstand packing, deployment and recovery of the parachute without damaging the parachute or the conductive network. A system comprising a conductive fabric configured to integrate with a parachute, wherein when the conductive fabric is integrated with the parachute the conductive fabric is able to withstand packing, deployment and recovery of the parachute without damaging the parachute or the conductive network. A method comprising arranging a conductive fabric to create a Faraday cage configured to integrate with a parachute, wherein when the conductive fabric is integrated with the parachute the conductive fabric is able to withstand packing, deployment and recovery of the parachute without damaging the parachute or the conductive network.

    Conductive network for fabrics
    8.
    发明授权

    公开(公告)号:US09988154B1

    公开(公告)日:2018-06-05

    申请号:US15582686

    申请日:2017-04-29

    IPC分类号: B64D17/02 H05K9/00

    CPC分类号: B64D17/02

    摘要: An apparatus, method for making, and product by process for a parachute, the parachute having a conductive network and a set of fabrics; the conductive network including a set of conductive elements and a set of devices; wherein a first subset of conductive elements of the set of conductive elements is incorporated with a second subset of fabrics of the set of fabrics and third subset of devices of the set of devices incorporated is incorporated with a fourth subset of fabrics of the set of fabrics.

    INTEGRATED SURGICAL TASK LIGHTING
    9.
    发明申请
    INTEGRATED SURGICAL TASK LIGHTING 审中-公开
    综合外科任务照明

    公开(公告)号:US20130310652A1

    公开(公告)日:2013-11-21

    申请号:US13893378

    申请日:2013-05-14

    IPC分类号: A61B19/00

    摘要: Method and apparatus for coordinated control of lights and devices in an operating room. An operating room is equipped with a plurality of devices, each capable of generating light. A set of rules are provided defining the manner in which the plurality of devices are to be controlled in a cooperative, coordinated manner in accordance with the state of the operating room. The state of the operating room is detected, as such state changes from time to time during the course of a medical procedure being performed in the operating room. The plurality of devices are controlled in accordance with the detected state, as it changes from time to time, and the set of rules. The plurality of devices are thus controlled in a cooperative, coordinated manner in accordance with the changing state of the operating room.

    摘要翻译: 在手术室中协调控制灯光和装置的方法和装置。 手术室配备有能够产生光的多个装置。 提供一组规则,其根据手术室的状态以协作协调的方式定义多个装置的控制方式。 检测手术室的状态,因为这样的状态在手术室中进行医疗处理的过程中不时地变化。 根据检测到的状态,随着时间的变化和一组规则,多个设备被控制。 因此,根据手术室的变化状态,以协作的协调方式控制多个装置。

    Noise reduction tubes
    10.
    发明申请
    Noise reduction tubes 失效
    降噪管

    公开(公告)号:US20050205351A1

    公开(公告)日:2005-09-22

    申请号:US11084400

    申请日:2005-03-18

    申请人: John D'Angelo

    发明人: John D'Angelo

    摘要: The invention uses tubes for the reduction of radiated duct noise. The tubes may be used to attenuate narrow band noise by diverting a portion of the acoustic energy through the tubes back into the duct. Upon reintroducing the diverted flow out of phase with the primary flow, acoustic cancellation is achieved. The frequency at which this occurs is dependent on the difference in the path lengths through the tubes and the separation distance—the distance separating the inlet and outlet of the tube. This invention can be used over varying frequency ranges by using an arrangement of flexible, constant length tubes. The effective frequency range is tailored by varying the separation distance and also allows the varying the angular arrangement of the tubes for more effective attenuation of spinning modes having varying propagation angle.

    摘要翻译: 本发明使用管来减少辐射管噪声。 管可以用于通过将一部分声能通过管转回到管道中来衰减窄带噪声。 当重新引入与主流相异步的转向流时,实现声消除。 发生这种情况的频率取决于通过管道的路径长度和分离距离(分离管的入口和出口的距离)之间的差异。 本发明可以通过使用柔性恒定长度管的布置在变化的频率范围内使用。 有效频率范围通过改变分离距离来定制,并且还允许改变管的角度布置以更有效地衰减具有变化的传播角度的纺丝模式。