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公开(公告)号：US11644495B2
公开(公告)日：2023-05-09
申请号：US16652392
申请日：2018-10-18
申请人： KYOCERA Corporation
发明人： Kazuhiko Kobayashi
摘要： A measurement method includes: measuring a reception intensity of radio waves transmitted from a radio wave transmitting apparatus at an installable position of a radio wave receiving apparatus operated by power of radio waves transmitted from the radio wave transmitting apparatus; and determining, on the basis of the reception intensity of radio waves, if the radio wave receiving apparatus can operate when installed at the installable position.
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公开(公告)号：US11630135B2
公开(公告)日：2023-04-18
申请号：US17394862
申请日：2021-08-05
摘要： Systems and methods for non-intrusive program tracing of a device are disclosed. The methods involve generating a program trace signal from at least one of power consumption and electromagnetic emission of the device; digitizing and decomposing the program trace signal into at least two digital program trace component signals including a low frequency program trace component and one or more high frequency program trace component signals; classifying fragments of the at least two digital program trace component signals of the program trace signal as at least one of a known portion of program code and an observed behavior of the device. Each of the at least two digital program trace component signals have different frequency bands and the bandwidth of each program trace component signal is smaller than the bandwidth of the program trace signal. Each of the high frequency program trace component signals include an envelope.
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公开(公告)号：US11624765B2
公开(公告)日：2023-04-11
申请号：US17159712
申请日：2021-01-27
申请人： ANRITSU CORPORATION
发明人： Tomohiko Maruo , Hiroyuki Baba , Masafumi Setsu
摘要： A test device 1 that measures the transmission properties or reception properties of the test object 100 having the test antenna 110, and includes an anechoic box 50, a plurality of test antennas 6 that transmit or receive radio signals to or from the antenna, under tests, a posture changeable mechanism 56 that changes the posture of the test object arranged in the quiet zone QZ, a measurement device 2 that measures the transmission properties or reception properties of the test object with respect to the test object whose posture is changed by the posture changeable mechanism using the test antenna, and the reflector 7 that radio signal is reflected. The plurality of test antennas include a reflection type test antenna 6a and the plurality of direct-type test antennas 6b, 6c, 6d.
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公开(公告)号：US20230092327A1
公开(公告)日：2023-03-23
申请号：US17478313
申请日：2021-09-17
发明人： Greg BONAGUIDE
摘要： The present disclosure relates to a measurement system for a parallel measurement with multiple tones, comprising: an RF signal source being configured to generate a continuous wave, CW, signal having at least two CW tones, the RF signal source being configured to feed said CW signal to an output port of the system which is arranged for being connected to a device-under-test, DUT; an input port being arranged to receive a response signal from the DUT, the response signal having at least two tones which are based on the at least two CW tones; a conversion unit being configured to convert the response signal to an intermediate frequency, IF, signal by means of analog mixing, thereby converting the at least two tones of the response signal to at least two IF tones; an analog-to-digital converter being configured to convert the IF signal to a digital signal; a parallel processing unit being configured to isolate the at least two IF tones of the IF signal using a digital down conversion, DDC, technique; the parallel processing unit being further configured to perform a measurement on the at least two CW tones and the at least two IF tones to determine at least one scattering parameter of the DUT.
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公开(公告)号：US20230081451A1
公开(公告)日：2023-03-16
申请号：US17734706
申请日：2022-05-02
申请人： ColdQuanta, Inc.
摘要： A microwave sensor determines an electric-field strength of a microwave field populated by quantum particles in an ultra-high vacuum (UHV) cell. A probe laser beam and a coupling laser beam are directed into the UHV cell so that they are generally orthogonal to each other and intersect to define a “Rydberg” intersection, so-called as the quantum particles within the Rydberg intersection transition to a pair of Rydberg states. The frequency of the probe laser beam is swept so that a frequency spectrum of the probe laser beam can be captured. The frequency spectrum is analyzed to determine a frequency difference between Autler-Townes peaks. The electric-field strength of the microwave field within the Rydberg intersection is then determined based on this frequency difference.
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公开(公告)号：US20230076287A1
公开(公告)日：2023-03-09
申请号：US17988503
申请日：2022-11-16
申请人： Jabil Inc.
发明人： Lin Lin , Kevin Loughran , Jason Wildt , Lei Zhang , Viktor Bondarchuk , Yu Zhang
摘要： Systems and methods for performing over-the-air verification tests for radar. A test chamber includes multiple sections, the sections separated by metal walls. The inner surfaces of the metal walls include absorbers. Each section includes defined testing devices to verify a defined function of a radar device. The defined testing devices can include a horn antenna and corner reflector. Each section has a defined number of rows. Each row has a defined testing device. Test fixtures hold a defined number of the radar devices in correspondence with the defined number of rows. The defined number of the radar devices placed on the test fixture via a placement device. A positioner to align under the sections and move the test fixtures through the sections of the test chamber and a controller to control operation of the positioner, the radar devices, and the placement device to execute over-the-air verification of the radar devices.
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公开(公告)号：US20230050818A1
公开(公告)日：2023-02-16
申请号：US17400054
申请日：2021-08-11
申请人： Apple Inc.
发明人： Jr-Yi Shen , Sammer Al-Robaee , Ruska Patton , Jia-Woei Chen
摘要： A testing apparatus for electromagnetically sensitive equipment includes a housing defining a testing chamber. The housing blocks transmission of electromagnetic waves from an external environment into the testing chamber and reduces reflection of electromagnetic waves within the testing chamber. The testing apparatus also includes a tube defining an air flow path between the testing chamber and the external environment. The tube blocks transmission of electromagnetic waves from the external environment into the air flow path. The tube includes a proximal end coupled to an opening in the housing such that the air flow path is fluidly coupled to the testing chamber via the opening, a distal end opposing the proximal end, and a bent segment extending between the proximal end and the distal end.
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公开(公告)号：US11579178B1
公开(公告)日：2023-02-14
申请号：US17647012
申请日：2022-01-04
IPC分类号： G01R29/08
摘要： An inspection apparatus used for inspecting a bare circuit board is provided, where the bare circuit board includes an antenna. The inspection apparatus includes a holding stage, a probing device, and a measurement device. The holding stage can hold the bare circuit board. The measurement device is electrically connected to the probing device and electrically connected to the antenna via the probing device. The measurement device can input a first testing signal to the antenna. The antenna can input a second testing signal to the measurement device after receiving the first testing signal. The measurement device can measure the antenna according to the second testing signal, where the first testing signal and the second testing signal both pass through no active component.
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公开(公告)号：US11579177B2
公开(公告)日：2023-02-14
申请号：US16912761
申请日：2020-06-26
摘要： An anechoic chamber and test system that is adapted for installation in or to a vehicle. The chamber includes an outer structure that is durable enough to withstand the effects of transportation. The anechoic chamber and test system may also include an inner faraday shield, a transmission antenna, and a controller that can introduce GNSS, alternative navigation signals, jamming, or spoofing signals into the anechoic chamber along with vehicle sensor signals. The controller is adapted to monitor a GNSS system's ability to resist the jamming or spoofing signals using, at least in part, the vehicle sensor signals.
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公开(公告)号：US20230022822A1
公开(公告)日：2023-01-26
申请号：US17380188
申请日：2021-07-20
申请人： Dell Products L.P.
IPC分类号： G01R29/08
摘要： An information handling system includes a data radio connected to an antenna system, and a proximity sensor connected to a proximity sensor probe. An antenna controller (AC) may determine whether a capacitance measurement coarsely indicates a specific antenna configuration or a coarse fault; and configure, when the capacitance measurement indicates a coarse fault, a data radio to operate at a failsafe radio transmit power level; determine, when the capacitance measurement indicates the specific antenna configuration, whether a detail capacitance measured with respect to the antenna system indicates proper antenna configuration or an out-of-range value; configure, when the detail capacitance indicates proper antenna configuration, the data radio to operate normally; and configure, when the detail capacitance indicates an out-of-range value, the data radio to operated in a mode where a performance parameter of the data radio is particularly monitored.
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