Apparatus and method for remote analysis of a target device

    公开(公告)号:US10291274B2

    公开(公告)日:2019-05-14

    申请号:US15259760

    申请日:2016-09-08

    Abstract: An apparatus and method that intentionally illuminate a number of target devices with RF energy having specific characteristics (e.g., frequency, power, waveform, directionality, duration, etc.) are provided. The target devices, which may comprise a computer system or other electronic circuits, by their fundamental nature as mixed analog and digital devices, act as non-linear mixers and are forced to emit information about the target device behavior, state, and physical characteristics. The apparatus that implements the method receives the forced emissions signals, extracts useful data from noise, and analyzes the data to determine target device characteristics. The target devices may be powered or unpowered. The apparatus and method provided may avoid impacting target device operation.

    Quantum circuit for high dimensional schur transform

    公开(公告)号:US10185916B2

    公开(公告)日:2019-01-22

    申请号:US15587333

    申请日:2017-05-04

    Inventor: Hari K. Krovi

    Abstract: A quantum circuit and method for Schur transform includes: a first quantum register including n quantum systems initialized to an initial state of “0”, where n is an integer and represents a number of quantum systems; a second quantum register including m quantum systems initialized to the initial state of “0”, where m is an integer and represents a required workspace; a first quantum circuit that operates on only the first register and performs a block diagonalization of the n quantum systems into permutation modules; a second quantum circuit that operates on both registers and block diagonalizes each of the permutation modules using a QFTPermMod operation; and one or more quantum output registers coupled to the second quantum circuit for holding a basis for the Schur transform.

    Bobber field acoustic detection system

    公开(公告)号:US10107907B2

    公开(公告)日:2018-10-23

    申请号:US14986968

    申请日:2016-01-04

    Abstract: Embodiments described herein relate to generating an image of an acoustic field associated with an underwater region. A plurality of submersible sensing devices (SSDs) are disposed so as to be substantially separate from each other in an underwater region, wherein each respective SSD is configured to execute a sink/float mission. During at least a portion of the sink/float mission, within each SSD, an environmental sensor measures at least one environmental parameter, a position sensor detects position information, an acoustic detection sensor detects at least one underwater signal, and a data recording system records mission data. After the sink/float mission, a processor receives mission data from the SSDs and generates an acoustic field image. Advantageously, during the sink/float mission some SSDs can transmit an orthogonal high time-bandwidth signal to help prevent interference between SSD during acoustic detection.

    COVERT SENSOR
    47.
    发明申请
    COVERT SENSOR 审中-公开

    公开(公告)号:US20180210071A1

    公开(公告)日:2018-07-26

    申请号:US15875904

    申请日:2018-01-19

    CPC classification number: G01S7/4814 G01S7/4868 G01S7/4917 G01S17/36

    Abstract: A system for covert sensing. A broadband light source is split into two portions, a first portion of which illuminates a target, and a second portion of which is frequency shifted, e.g., by an acousto-optic frequency shifter. Light reflected from the target is combined with the frequency shifted light, detected, and demodulated with an in-phase and quadrature demodulator. The outputs of the demodulator are filtered and the arc tangent of the ratio is calculated.

    Graphene-based bolometer
    48.
    发明授权

    公开(公告)号:US10024721B2

    公开(公告)日:2018-07-17

    申请号:US15869725

    申请日:2018-01-12

    Inventor: Kin Chung Fong

    Abstract: A bolometer. In one embodiment a graphene sheet is configured to absorb electromagnetic waves. The graphene sheet has two contacts connected to an amplifier, and a power detector connected to the amplifier. Electromagnetic power in the evanescent electromagnetic waves is absorbed in the graphene sheet, heating the graphene sheet. The power of Johnson noise generated at the contacts is proportional to the temperature of the graphene sheet. The Johnson noise is amplified and the power in the Johnson noise is used as a measure of the temperature of the graphene sheet, and of the amount of electromagnetic wave power absorbed by the graphene sheet.

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