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    Spectrum extension edgeless gating for reduced time domain gating edge errors
    1.
    发明授权
    Spectrum extension edgeless gating for reduced time domain gating edge errors 有权

    公开(公告)号：US10816584B2

    公开(公告)日：2020-10-27

    申请号：US15830658

    申请日：2017-12-04

    Applicant: ETS-Lindgren Inc.

    Inventor： Zhong Chen ,  Zubiao Xiong

    IPC: G01R27/28 ,  G06F17/17 ,  G01R27/32

    Abstract: A method and system for processing finite frequency domain data to which a time gating process is to be applied to improve performance of signal processing equipment and to facilitate complex time gating while suppressing edge effects. According to one aspect, a method for improved processing of a finite frequency signal by signal processing equipment to suppress edge effects arising from a time gating process is provided. The method includes padding the finite frequency signal outside a frequency range with samples derived from an extrapolation process to produce an extended signal having samples inside and outside the frequency range of the finite signal. The method further includes applying a time gating process to the extended signal to exclude signals occurring outside a time interval and to produce a time gated signal with suppressed edge effects.

    System and method for power control of an over-the-air RF environment emulator
    2.
    发明授权
    System and method for power control of an over-the-air RF environment emulator 有权

    公开(公告)号：US10470135B2

    公开(公告)日：2019-11-05

    申请号：US16288672

    申请日：2019-02-28

    Applicant: ETS-Lindgren Inc.

    Inventor： Michael David Foegelle

    IPC: H04W52/04 ,  H04B17/391 ,  H04B17/13 ,  H04B17/29

    Abstract: Methods, tests systems and computers for controlling power delivered to a test volume are provided. According to one aspect, an electromagnetic test system has at least one operational path having a channel emulator output, an amplifier, an attenuator and an antenna. A method includes, for a given desired output power level, C, setting a channel emulator output power to a power level B, and setting the attenuator to a setting A, such that C is a function of B and A. In such embodiments, the attenuation A may be calculated based on an upper limit output power of the channel emulator and the desired output power C.

    Acoustic chamber with low frequency transparency
    6.
    发明授权
    Acoustic chamber with low frequency transparency 有权

    公开(公告)号：US09799317B2

    公开(公告)日：2017-10-24

    申请号：US15093092

    申请日：2016-04-07

    Applicant: ETS-Lindgren Inc.

    Inventor： Douglas Winker

    IPC: G10K11/16

    CPC classification number: G10K11/16 ,  E04B1/8218 ,  E04B2001/8419 ,  E04B2001/8433

    Abstract: An acoustic chamber with low frequency outer wall transmissivity is provided. According to one aspect, an acoustic chamber has an inner wall encompassing an interior of the acoustic chamber and configured to allow acoustic energy to penetrate the inner wall. The acoustic chamber also has an outer wall configured to allow low frequency acoustic energy that penetrates the inner wall to penetrate the outer wall and leave the acoustic chamber.

    Multiseal door, method for sealing an enclosure
    7.
    发明授权
    Multiseal door, method for sealing an enclosure 有权
    多门，密封外壳的方法

    公开(公告)号：US09140055B2

    公开(公告)日：2015-09-22

    申请号：US14222455

    申请日：2014-03-21

    Applicant: ETS-LINDGREN INC.

    Inventor： Jerry W. Skibinski ,  Stanley J. Zielinski ,  Saulius Gugis ,  Joseph C. Weibler

    IPC: E06B7/16 ,  E06B7/28 ,  E06B7/232 ,  E06B5/18 ,  E05F7/00

    CPC classification number: E06B7/16 ,  E05F7/005 ,  E06B5/18 ,  E06B7/232 ,  E06B7/28

    Abstract: The invention provides a door system which has a door leaf with a first horizontally disposed edge and a second horizontally disposed edge inferior to the first horizontally disposed edge. The door system also includes a rod-less cylinder in communication with the first horizontally disposed edge and a cam surface formed with the second horizontally disposed edge. The cam surface limits the door to a single plane of movement relative to an opening of an enclosure defining a door jamb.

    Abstract translation: 本发明提供一种门系统，其具有第一水平设置的边缘的门扇和与第一水平设置的边缘相比第二水平设置的边缘。 门系统还包括与第一水平设置的边缘连通的无杆气缸和形成有第二水平设置的边缘的凸轮表面。 凸轮表面将门限于相对于限定门侧柱的外壳的开口的单个移动平面。

    DISTRIBUTED SYSTEM FOR RADIO FREQUENCY ENVIRONMENT SIMULATION
    10.
    发明申请
    DISTRIBUTED SYSTEM FOR RADIO FREQUENCY ENVIRONMENT SIMULATION 有权

    公开(公告)号：US20210028868A1

    公开(公告)日：2021-01-28

    申请号：US17065805

    申请日：2020-10-08

    Applicant: ETS-Lindgren Inc.

    Inventor： Michael David FOEGELLE

    IPC: H04B17/00 ,  H04B17/364 ,  H04W24/06 ,  H04W72/04

    Abstract: A method and system for measuring a device under test are disclosed. In some embodiments, a method of implementing a measurement system is provided. The method includes providing a plurality of nodes, each node including a combination of a communication tester configured to generate a communication signal and a channel emulator configured to emulate a channel, and providing a user interface configured to enable a user to control at least one of the plurality of nodes.

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