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公开(公告)号：US11619657B2
公开(公告)日：2023-04-04
申请号：US17099701
申请日：2020-11-16
申请人： Tektronix, Inc.
发明人： Daniel G. Knierim , Josiah A. Bartlett , Amr Haj-Omar , Donald J. Dalebroux , Barton T. Hickman , Alexander Krauska
摘要： An accessory device has a test port, an instrument port to connect to an instrument having an operating bandwidth, and one or more configurable signal paths connectable between the test port and the instrument port to convert a signal from the test port having a first frequency range to a signal having a second frequency range different than the first frequency range. A test and measurement system has a test and measurement instrument having an operating bandwidth, and an accessory device. The accessory device has a first instrument port to connect the accessory device to the test and measurement instrument, a test port to connect the accessory device to a device under test, and one or more configurable signal paths connectable between the test port and the instrument port to down-convert a signal from the test port having a first frequency range to a signal having a second frequency range lower than the first frequency range.
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公开(公告)号：US11531045B2
公开(公告)日：2022-12-20
申请号：US16661547
申请日：2019-10-23
发明人： Tobias Frede
摘要： A measurement apparatus and a method for controlling a measurement apparatus is provided. The measurement apparatus comprises an ultrasonic sensor for receiving a further user input. The further user input may be used to identify a specific user. Accordingly, the measurement apparatus can be automatically configured based on data related to the identified user. Since the ultrasonic sensor may be operated even if the ultrasonic sensor is covered by a protecting element, the robustness of the measurement apparatus can be further improved.
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公开(公告)号：US20220120786A1
公开(公告)日：2022-04-21
申请号：US17568070
申请日：2022-01-04
发明人： Martin Peschke
摘要： A measurement input circuit for a measurement device for measuring an electric signal in a device under test comprises a signal input that receives the electronic signal from the device under test and provides the received electronic signal at a signal node, a direct signal coupling path that is coupled between the signal node an electrical ground and comprises a first impedance value, an alternating signal coupling path that is coupled between the signal node and the electrical ground , and comprises a second impedance value that is lower than the first impedance value, and a signal output that is coupled to the signal node and outputs the received electronic signal.
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公开(公告)号：US11287447B2
公开(公告)日：2022-03-29
申请号：US15632458
申请日：2017-06-26
发明人： Martin Peschke
摘要： A measurement input circuit for a measurement device for measuring an electric signal in a device under test comprises a signal input that receives the electronic signal from the device under test and provides the received electronic signal at a signal node, a direct signal coupling path that is coupled between the signal node an electrical ground and comprises a first impedance value, an alternating signal coupling path that is coupled between the signal node and the electrical ground, and comprises a second impedance value that is lower than the first impedance value, and a signal output that is coupled to the signal node and outputs the received electronic signal.
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5.发明授权公开(公告)号：US11268979B2
公开(公告)日：2022-03-08
申请号：US16436654
申请日：2019-06-10
申请人： Fluke Corporation
摘要： A testing device configured to operate as a dedicated tool for testing motor drives and motor shafts guides a user (such as a test engineer or a technician) through the steps of testing the motor drive and shaft. The testing device is configured to output testing results to the user. By configuring the testing device to output specific motor drive and shaft measurement results and by guiding a user through the steps of performing the measurement, operation of the testing device is simplified.
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公开(公告)号：US20180286359A1
公开(公告)日：2018-10-04
申请号：US15940731
申请日：2018-03-29
发明人： Philip Diegmann
摘要： A method for performing a Bus autoset function is described. A maximum amplitude of an analog signal is detected. The analog signal is converted into a logical signal. A frame in the logical signal is detected. A scale of an output unit is set such that the whole frame is output. Further, a measurement device is described.
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公开(公告)号：US09933458B2
公开(公告)日：2018-04-03
申请号：US14674344
申请日：2015-03-31
申请人： Tektronix, Inc.
发明人： John J. Pickerd , Kan Tan
CPC分类号： G01R13/0218 , G01R13/0272 , G01R13/225 , H03M1/1052 , H03M1/1215
摘要： A test and measurement instrument including a splitter configured to split an input signal into at least two split signals, at least two harmonic mixers configured to mix an associated split signal with an associated harmonic signal to generate an associated mixed signal, at least two digitizers configured to digitize the associated mixed signal, at least two MIMO polyphase filter arrays configured to filter the associated digitized mixed signal of an associated digitizer of the at least two digitizers, at least two pairs of band separation filters configured to receive the associated digitized mixed signals from each of the MIMO polyphase filter arrays and output a low band of the input signal and a high band of the input signal based on a time different between the at least two digitizers and a phase drift of a local oscillator, and a combiner configured to combine the low band of the input signal and the high band of the input signal to form a reconstructed input signal.
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公开(公告)号：US08456154B2
公开(公告)日：2013-06-04
申请号：US12791880
申请日：2010-06-02
申请人： Jui-Hsiung Ho , Wang-Ding Su
发明人： Jui-Hsiung Ho , Wang-Ding Su
CPC分类号： G01R13/0218 , G01R13/0272
摘要： In a low voltage differential-mode signaling (LVDS) test system and method, a positive signal waveform and a negative signal waveform of an LVDS signal pair are obtained. A differential-mode high voltage, a differential-mode low voltage, and a common-mode noise are measured according to the positive signal waveform and the negative signal waveform. The measurement results are output to an output device.
摘要翻译： 在低压差模信号（LVDS）测试系统和方法中，获得LVDS信号对的正信号波形和负信号波形。 根据正信号波形和负信号波形测量差分模式高电压，差模低电压和共模噪声。 测量结果输出到输出设备。
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9.发明申请METHOD OF PROCESSING WAVEFORM DATA FROM ONE OR MORE CHANNELS USING A TEST AND MEASUREMENT INSTRUMENT 有权使用测试和测量仪器从一个或多个通道处理波形数据的方法公开(公告)号：US20100063760A1
公开(公告)日：2010-03-11
申请号：US12206072
申请日：2008-09-08
IPC分类号： G01R13/22
CPC分类号： G01R13/0254 , G01R13/029
摘要： The method of processing waveform data from one or more channels using a test and measurement instrument, such as an oscilloscope, is described in which waveform data is collected from a DUT; defining a context is defined by instructing the instrument to obtain the focus of each waveform datum having a first user-defined attribute; defining a selection criteria by instructing the instrument to obtain the focus of each waveform datum having both a first user-defined attribute and a second user-defined attribute; and defining an action by instructing the instrument to perform an operation responsive to finding at least one waveform datum having both the first user-defined attribute and the second user-defined attribute.
摘要翻译： 描述了使用诸如示波器的测试和测量仪器从一个或多个通道处理波形数据的方法，其中从DUT收集波形数据; 通过指示仪器获得具有第一用户定义属性的每个波形数据的焦点来定义上下文; 通过指示仪器获得具有第一用户定义属性和第二用户定义属性的每个波形数据的焦点来定义选择标准; 以及通过指示所述仪器执行响应于找到具有所述第一用户定义属性和所述第二用户定义属性的至少一个波形数据的操作来定义动作。
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10.发明授权Method which provides debounced inputs from a touch screen panel by waiting until each x and y coordinates stop altering 失效通过等待直到每个x和y坐标停止改变来提供来自触摸屏面板的去抖动输入的方法
公开(公告)号：US5025411A
公开(公告)日：1991-06-18
申请号：US939645
申请日：1986-12-08
CPC分类号： G06F3/033 , G01R13/22 , G01R13/347
摘要： A system for providing input to a computer comprises a touchscreen apparatus for generating a grid of horizontal and vertical light beams and producing a set of output signals, each indicating whether a corresponding one of the light beams strikes an object. A scanning device repeatedly scans the states of the output signals, stores data representing the last scanned state of each output signal, and transmits a first interrupt signal to the computer whenever the state of any one of the output signals changes. In response to the interrupt signal, the computer reads the stored scan data, determines whether the data indicates that a horizontal and a vertical light beam is striking an object, and if so, sets parameter values to identify the horizontal and vertical light beams. In response to a second interrupt signal periodically generated by a clock, the computer determines whether or not the parameter values have remained constant for a predetermined period, and if so executes a routine responsive to the parameter values.
摘要翻译： 用于向计算机提供输入的系统包括用于产生水平和垂直光束的网格并产生一组输出信号的触摸屏设备，每个输出信号指示对应的一个光束是否撞击物体。 扫描装置重复地扫描输出信号的状态，存储表示每个输出信号的最后扫描状态的数据，并且每当输出信号中的任一个的状态改变时，将第一中断信号发送到计算机。 响应于中断信号，计算机读取存储的扫描数据，确定数据是指水平和垂直光束是否被击中物体，如果是，则设置参数值以识别水平和垂直光束。 响应于由时钟周期性地产生的第二中断信号，计算机确定参数值是否在预定时间段内保持不变，并且如果执行响应于参数值的例程。
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