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    METHOD AND APPARATUS FOR ACOUSTIC DETECTION OF MINES AND OTHER BURIED MAN-MADE OBJECTS
    95.
    发明公开
    METHOD AND APPARATUS FOR ACOUSTIC DETECTION OF MINES AND OTHER BURIED MAN-MADE OBJECTS 失效
    声学检测矿山和其他埋藏人造物体的方法和设备

    公开(公告)号：EP0995129A1

    公开(公告)日：2000-04-26

    申请号：EP98936833.7

    申请日：1998-07-15

    Applicant: TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY

    Inventor： DONSKOY, Dimitri, M. ,  SUTIN, Alexander M.

    IPC: G01S15/04 ,  G01N29/00

    CPC classification number: G01S15/88 ,  F41H11/12 ,  G01N29/11 ,  G01N29/28 ,  G01N29/40 ,  G01N29/46 ,  G01N29/48 ,  G01N2291/014 ,  G01S15/025 ,  G01S15/04 ,  G01V1/001

    Abstract: A device (10) which employs an acoustic signal having one or more frequencies for penetrating into ground, water, or sediments and vibrating a compliant buried object (8) is provided. When these acoustic signals encounter an acoustically compliant object (8) such as a mine, the acoustic signals vibrate the compliant object (8), leading to a vibration of the compliant object (8) against the boundaries of the surrounding medium such as ground sediment, creating a nonlinear distortion of the probing signal including the generation of harmonics and acoustic waves with combination frequencies (nonlinear signals). These nonlinear vibrating signals are received from the surface by a sensor (20). The amplitude of the measured nonlinear signals indicates the presence of an acoustically compliant object (8) such as a mine. The present invention also relates to a method and apparatus which emits an electromagnetic RF probing signal and acoustic or vibration signal (modulating signal), detects the reflected electromagnetic signal from the buried object (8), and processes the received signal, identifying the modulation caused by vibration.

    Abstract translation: 提供了一种采用具有一个或多个频率的声信号的装置（10），所述声信号用于穿透地面，水或沉积物并使柔顺的埋藏物体（8）振动。 当这些声信号遇到诸如矿山的声学顺应物体（8）时，声信号使柔顺物体（8）振动，导致柔顺物体（8）振动抵抗周围介质的边界，例如地面沉积物 ，产生探测信号的非线性失真，包括产生谐波和具有组合频率的声波（非线性信号）。 这些非线性振动信号由传感器（20）从表面接收。 测得的非线性信号的幅度指示存在声学顺应性物体（8），例如矿山。 本发明还涉及发射电磁RF探测信号和声音或振动信号（调制信号），检测来自掩埋物体（8）的反射电磁信号并处理接收到的信号，识别引起的调制的方法和设备 通过振动。

    THREE-DIMENSIONAL IMAGING SYSTEM USING OPTICAL PULSES, NON-LINEAR OPTICAL MIXERS AND HOLOGRAPHIC CALIBRATION
    96.
    发明公开
    THREE-DIMENSIONAL IMAGING SYSTEM USING OPTICAL PULSES, NON-LINEAR OPTICAL MIXERS AND HOLOGRAPHIC CALIBRATION 审中-公开
    SYSTEM FOR立体画面使用光脉冲，非线性光学混频器和校准HOLOGRAPHIC

    公开(公告)号：EP1709617A2

    公开(公告)日：2006-10-11

    申请号：EP04815479.3

    申请日：2004-12-22

    Applicant: TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY

    Inventor： KEATING III, John, J. ,  MARTINI, Rainer

    IPC: G09G3/00

    CPC classification number: H04N13/39 ,  H04N13/207 ,  H04N13/246 ,  H04N13/254 ,  H04N13/393

    Abstract: A three dimensional imaging system is disclosed which includes a three dimensional display (12), three-dimensional calibration equipment (16), and one or more two-dimensional (15) or three dimensional (14) image scanners. The three-dimensional display (12) uses optical pulses (32a-32k) and a non linear optical mixer (18) to display a three-dimensional image (17). The three-dimensional image (17) is generated in voxels of the display volume (28) as the optical mixer (18) sweeps the display volume (28). The three-dimensional calibration equipment (16) uses a hologram projected proximal to a desired object (164) to calibrate optical imaging devices (162a-162c) and to simplify the combination of the images from one or more optical imaging devices (162a-162c) into three-dimensional information. The three-dimensional image scanner (14) employs optical pulses (136, 138) and a non-linear optical mixer (128) to acquire three-dimensional images of a desired object (134). The three-dimensional image scanner (14) captures both the shape and color of a desired object (134).

    METHOD AND APPARATUS FOR STABILIZING OF THE GLOW PLASMA DISCHARGES
    97.
    发明公开
    METHOD AND APPARATUS FOR STABILIZING OF THE GLOW PLASMA DISCHARGES 审中-公开
    用于稳定辉光等离子体放电的方法和设备

    公开(公告)号：EP1559124A2

    公开(公告)日：2005-08-03

    申请号：EP03778104.4

    申请日：2003-11-05

    Applicant: TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY

    Inventor： KUNHARDT, Erich ,  BECKER, Kurt

    IPC: H01J17/00 ,  H01J17/49

    CPC classification number: H01J37/32018 ,  H01J17/04 ,  H01J37/32036 ,  H01J37/32559 ,  H01J37/32623 ,  H01J2237/0206 ,  H05H1/2406 ,  H05H2001/2412

    Abstract: A method and apparatus for stabilizing glow plasma discharges by suppressing the transition from glow-to-arc includes a perforated dielectric plate having an upper surface and a lower surface and a plurality of holes extending therethrough. The perforated dielectric plate is positioned over the cathode. Each of the holes acts as a separate active current limiting micro-channel that prevents the overall current density from increasing above the threshold for the glow-to-arc transition. This allows for a stable glow discharge to be maintained for a wide range of operating pressures (up to atmospheric pressures) and in a wide range of electric fields include DC and RF fields of varying strength.

    Abstract translation: 一种用于通过抑制辉光至弧的转变来稳定辉光等离子体放电的方法和设备包括具有上表面和下表面以及延伸穿过其中的多个孔的穿孔电介质板。 多孔电介质板位于阴极之上。 每个孔充当独立的有源限流微通道，防止总体电流密度超过辉光至弧过渡的阈值。 这允许在宽范围的操作压力（高达大气压力）下维持稳定的辉光放电，并且在宽范围的电场中包括强度变化的DC和RF场。

    METHOD AND APPARATUS FOR ACOUSTIC DETECTION AND LOCATION OF DEFECTS IN STRUCTURES OR ICE ON STRUCTURES
    98.
    发明公开
    METHOD AND APPARATUS FOR ACOUSTIC DETECTION AND LOCATION OF DEFECTS IN STRUCTURES OR ICE ON STRUCTURES 审中-公开
    方法和装置用于声定位和在结构故障的检测和冰上的结构

    公开(公告)号：EP1060390A1

    公开(公告)日：2000-12-20

    申请号：EP99905594.0

    申请日：1999-01-29

    Applicant: TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY

    Inventor： DONSKOY, Dimitri, M. ,  SUTIN, Alexander, M.

    IPC: G01N29/12 ,  G01H13/00 ,  G01H9/00

    CPC classification number: G01N29/12 ,  G01N29/045 ,  G01N29/449 ,  G01N2291/0234 ,  G01N2291/02491 ,  G01N2291/0251 ,  G01N2291/0421

    Abstract: The invention relates to a method and apparatus for nondestructive testing and evaluation of materials and mechanical structures to determine their integrity reducing contact-type flaws and presence of ice on a structure. The invention employs an ultrasonic probing signal (30) and a low frequency vibration (20) applied to a structure (8) tested. In a structure without flaws or ice, these signals propagate independently without any interaction. If the structure contains a defect or ice thereon, the vibration varies the contact area of the defect or ice/structure interface, modulating the phase and amplitude of the higher frequency ultrasonic probing signal passing through the structure (8). In the frequency domain the result of this modulation manifests itself as sideband spectral components with respect to frequency of the probe wave. This can be considered as a new signal generated by a defect, so that the defect can be detected more easily when such a signal is observed.

    GLOW PLASMA DISCHARGE DEVICE
    99.
    发明公开
    GLOW PLASMA DISCHARGE DEVICE 失效
    发光等离子体放电装置

    公开(公告)号：EP1012863A1

    公开(公告)日：2000-06-28

    申请号：EP98910447.6

    申请日：1998-03-17

    Applicant: TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY

    Inventor： KUNHARDT, Erich, E. ,  BECKER, Kurt, H.

    IPC: H01J17/49

    CPC classification number: H01J37/32018 ,  H01J37/32036 ,  H01J37/32559 ,  H01J2237/0206 ,  H05H1/48 ,  H05H2001/4697

    Abstract: A method and apparatus for stabilizing glow plasma discharges by suppressing the transition from glow-to-arc includes a perforated dielectric plate having an upper surface and a lower surface and a plurality of holes extending therethrough. The perforated dielectric plate is positioned over the cathode. Each of the holes acts as a separate active current limiting micro-channel that prevents the overall current density from increasing above the threshold for the glow-to-arc transition. This allows for a stable glow discharge to be maintained for a wide range of operating pressures (up to atmospheric pressures) and in a wide range of electric fields include DC and RF fields of varying strength.

    Abstract translation: 公开了一种具有用穿孔电介质（30）覆盖的电极（20,40）的辉光等离子体放电装置。

    SYSTEMS AND METHODS FOR QUANTUM-SECURED, PRIVATE-PRESERVING COMPUTATIONS
    100.
    发明公开
    SYSTEMS AND METHODS FOR QUANTUM-SECURED, PRIVATE-PRESERVING COMPUTATIONS 审中-公开

    公开(公告)号：EP4170963A1

    公开(公告)日：2023-04-26

    申请号：EP22215515.2

    申请日：2020-10-16

    Applicant: The Trustees Of The Stevens Institute Of Technology

    Inventor： HUANG, Yuping ,  NGUYEN, Lac Thi Thanh

    IPC: H04L9/08 ,  H04L9/32

    Abstract: The present invention relates to methods for secure computation and/or communication. Entangled photons (118) are generated such that each participating party receives a series of optical pulses. Each party has private information (110, 112) which are never transmitted through public or private communication channels. Instead, each party converts their respective private information (110, 112) into measurement bases via an encryption process (114, 116) which are then applied to the entangled photons (118). After the measurement process, e.g., quantum frequency conversion (122, 124), reference indices are announced (124, 126) so that computation can be performed (128) without revealing the private information directly or indirectly.

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