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公开(公告)号：US12007274B2
公开(公告)日：2024-06-11
申请号：US17292659
申请日：2018-11-08
发明人： Miguel Nicolau Da Costa Ribeiro De Miranda , Chen Guo , Maïté Louisy , Cord Louis Arnold , Anne Genevieve L'Huillier Wahlstrom
摘要： The present disclosure relates to laser systems and laser pulse measurement methods. The method comprises a dispersive system for applying a controlled chirp, to an incoming ultrashort light pulse to be measured; an optical system for selecting an homogeneous part of the transverse spatial beam profile of said light pulse; applying different spectral phases to different spatial parts of the beam obtained in the previous step, which comprises allowing different spatial parts of the beam to cross different thicknesses of material; focusing or propagating the beam in a nonlinear medium after applying the spectral phases; applying a nonlinear process to the pulse to be characterized for each spatial part of the beam, allowing the generation of a nonlinear signal for each spatial part of the beam; measuring the corresponding bi-dimensional data set that has the information on the nonlinear signal generated for each applied spectral phase in a detector; applying a numerical iterative algorithm to the measured data set to retrieve the spectral phase of the pulse to be characterized; such process being done in a parallel fashion.
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2.发明公开公开(公告)号：US20230246564A1
公开(公告)日：2023-08-03
申请号：US17649215
申请日：2022-01-28
申请人： NXP B.V.
摘要： An electronic circuit is provided. The electronic circuit includes a full-bridge rectifier, a spurious tone detection circuit, and a controller. The rectifier circuit has a plurality of switching elements and first and second radio frequency (RF) terminals. The spurious tone detection circuit has a non-linear circuit element and is coupled between the first RF terminal and a first reference terminal. The spurious tone detection circuit provides a non-zero direct current (DC) voltage in response to detecting harmonic tones at the first RF terminal of the full-bridge rectifier circuit. The controller is coupled to the plurality of switching elements. The controller is for controlling the operation of the plurality of switching elements based at least in part on detecting the harmonic tones. In one embodiment, the electronic circuit may be a wireless charging receiver. In another embodiment, a method for detecting harmonic tones in the electronic device is provided.
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公开(公告)号：US20190237837A1
公开(公告)日：2019-08-01
申请号：US16336801
申请日：2016-09-26
申请人： SAAB AB
发明人： Hans-Olof VICKES
CPC分类号： H01P1/20 , G01R29/08 , H01P1/20363
摘要： The filter unit has a center frequency and comprises a first dielectric substrate, a first conducting plane, and at least one transmission arrangement. The at least one transmission arrangement comprises a shunt node which has a shunt connection to the conducting plane. The electrical length of the shunt connection defines the center frequency of the filter unit. The transmission arrangement further comprises a plurality of transmission lines connected in series between an input port and an output port, wherein each port is connectable to auxiliary systems with a system impedance. Moreover, each transmission line has a characteristic impedance and wherein the characteristic impedance of each transmission line is less than the system impedance.
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4.发明申请公开(公告)号：US20180076005A1
公开(公告)日：2018-03-15
申请号：US15703557
申请日：2017-09-13
发明人： Benedikt HAAS , David COOPER , Jean-Luc ROUVIERE
IPC分类号： H01J37/244 , G01R29/08 , G01N27/06
CPC分类号： H01J37/244 , G01N23/20058 , G01N23/2055 , G01N27/06 , G01R29/08 , G01R33/02 , H01J37/268 , H01J37/2955 , H01J2237/2614 , H01J2237/2805
摘要： Method of determining a local electric field and/or a local magnetic field in a sample and/or the dielectric constant of a material and/or the angle between the input and output surfaces of the sample, comprising the following steps: illumination of the sample by an electron beam in precession mode using an illumination device, generation of a diffraction pattern, determination of the offset of the disk corresponding to the transmitted beam due to the electric field and/or the magnetic field, by comparison of the diffraction pattern and a reference diffraction pattern, determination of a deflection angle of the transmitted beam, determination of the value of the local electric field and/or the local magnetic field of the sample and/or determination of the dielectric constant of materials and/or determination of the angle between the input and output surfaces of the sample.
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公开(公告)号：US09804215B2
公开(公告)日：2017-10-31
申请号：US15111288
申请日：2014-03-03
申请人： Hitachi, Ltd.
发明人： Aya Ohmae , Takashi Suga , Umberto Paoletti
IPC分类号： G01R29/08
CPC分类号： G01R29/0885 , G01R29/08 , G01R29/0878
摘要： The purpose of the present invention is to provide a small electromagnetic wave detection apparatus. This electromagnetic wave detection apparatus has: a planar Luneburg lens, which is covered with metal plates facing each other, and which changes the output direction of electromagnetic waves corresponding to the input direction of the electromagnetic waves; and an electric field sensor electrically connected to the metal plates. The electric field sensor detects the electromagnetic waves outputted from the Luneburg lens, and outputs a detection signal having an intensity corresponding to the direction in which the electromagnetic waves have traveled thereto, and the level of the energy of the electromagnetic waves thus detected.
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公开(公告)号：US09766132B2
公开(公告)日：2017-09-19
申请号：US15017730
申请日：2016-02-08
IPC分类号： G01J11/00 , G01N33/20 , G01R29/08 , G01N21/84 , G01N21/3586
CPC分类号： G01J11/00 , G01N21/3586 , G01N21/8422 , G01N33/20 , G01N2021/8427 , G01R29/08
摘要： A measuring apparatus measure the amount of a metal catalyst supported on a sample that has a membrane of a metal catalyst layer containing the metal catalyst. The measuring apparatus includes a terahertz-wave emitting part that emits a terahertz wave in the range of 0.01 to 10 THz to the sample, a transmitted-terahertz-wave detection part that detects the electric field intensity of a transmitted terahertz wave that has passed through the sample, a storage that stores correlation information acquired in advance and indicating the correlation between the amount of the metal catalyst supported and the electric field intensity of the transmitted terahertz wave, and an amount-of-catalyst-supported acquisition module that acquires the amount of the metal catalyst supported on the sample, on the basis of the correlation information and the electric field intensity of the transmitted terahertz wave detected by the transmitted-terahertz-wave detection part.
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公开(公告)号：US09733062B2
公开(公告)日：2017-08-15
申请号：US14947009
申请日：2015-11-20
CPC分类号： G01B7/16 , F01D17/04 , F05D2270/808 , G01L1/146 , G01M5/0016 , G01M5/0083 , G01R29/08
摘要： A system for monitoring a component is provided. The system includes an electrical field scanner for analyzing an electrical field across a reference zone, and a processor in operable communication with the electrical field scanner. The reference zone may include a plurality of fiducials configured on the component to influence the electrical field. The processor may be operable for measuring an electrical field value along a mutually-orthogonal X-axis and Y-axis, assembling a zone profile including a data point set according to the measured electrical field value. Methods of using the system are also provided.
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公开(公告)号：US20170227766A1
公开(公告)日：2017-08-10
申请号：US15497908
申请日：2017-04-26
发明人： Nishank Patel , Praveen Dandu
CPC分类号： G02B27/017 , A61F9/06 , A61F9/061 , A61F9/067 , B23K9/322 , G01R29/08 , G02B2027/0138 , G02B2027/014 , G02F2201/58 , G06T5/009 , G06T19/006 , G06T2207/10048 , G06T2207/20208 , G09G5/006 , G09G5/10 , G09G2320/0626 , G09G2320/066 , G09G2360/14 , G09G2360/141 , G09G2360/144
摘要： An example head-worn device includes a camera, a display device, weld detection circuitry, and pixel data processing circuitry. The camera generates first pixel data from a field of view of the head-worn device. The display device displays second pixel data to a wearer of the head-worn device based on the first pixel data captured by the camera. The weld detection circuitry determines whether a welding arc is present and generates a control signal indicating a result of the determination. The pixel data processing circuitry processes the first pixel data captured by the camera to generate the second pixel data for display on the display device, where a mode of operation of said pixel data processing circuitry is selected from a plurality of modes based on said control signal.
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公开(公告)号：US20170180065A1
公开(公告)日：2017-06-22
申请号：US15327275
申请日：2015-07-17
申请人： NEC CORPORATION
发明人： Kenta TSUKAMOTO
IPC分类号： H04B17/345 , H04W24/08 , H04W4/00
CPC分类号： H04B17/345 , G01R29/08 , H04W4/80 , H04W24/08
摘要： A device that measures an electromagnetic near-field emitted from a measurement object and evaluates electromagnetic interference, the device including mask setting unit that converts a predetermined communication performance value into an amplitude probability distribution mask and setting a converted amplitude probability distribution mask as a permissible level; acquisition unit that acquires time-series measurement data of electromagnetic radio interference in connection with a measurement position coordinate; amplitude probability distribution calculation unit that calculates an amplitude probability distribution of the electromagnetic radio interference for each measurement position coordinate based on the time-series measurement data; determination unit that determines a magnitude relation between the amplitude probability distribution mask and the amplitude probability distribution for each measurement position coordinate and outputting as a determination result; and mapping process unit that acquires a mapping result in which the determination result is reflected in a space corresponding to the measurement object.
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公开(公告)号：US09568301B2
公开(公告)日：2017-02-14
申请号：US14251237
申请日：2014-04-11
发明人： Dan Tho Lu , Lam Arthur Campbell
摘要： A system includes first, second, third and fourth capacitive sensors, each disposed about a longitudinal axis. The first capacitive sensor is disposed along a first axis radial to the longitudinal axis, and the third capacitive sensor is disposed along the first axis opposite the first capacitive sensor. The second capacitive sensor is disposed along a second axis radial to the longitudinal axis, the fourth capacitive sensor is disposed along the second axis opposite the second capacitive sensor, and the second axis is different from the first axis. Each capacitive sensor is configured to transmit a respective signal based at least in part on a position of a rotational component along the respective axis relative to the longitudinal axis.
摘要翻译： 系统包括第一，第二，第三和第四电容传感器，每个电容传感器围绕纵向轴线设置。 第一电容传感器沿着与纵向轴线径向的第一轴设置，并且第三电容传感器沿着与第一电容式传感器相对的第一轴设置。 第二电容传感器沿着与纵向轴线径向的第二轴设置，第四电容传感器沿着与第二电容传感器相对的第二轴设置，第二轴与第一轴不同。 每个电容传感器被配置为至少部分地基于旋转分量相对于纵向轴线沿相应轴线的位置传输相应的信号。
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