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1. 发明授权

US12055564B2 Oscilloscope and signal analysis method 有权
公开(公告)号：US12055564B2
公开(公告)日：2024-08-06
申请号：US17730843
申请日：2022-04-27
申请人： Rohde & Schwarz GmbH & Co. KG
发明人： Manuel Stein
IPC分类号： G01R13/02
CPC分类号： G01R13/0272 , G01R13/0254 , G01R13/029
摘要： An oscilloscope includes a signal input circuit, a switching matrix circuit, and a downconverter circuit. The signal input circuit is configured to receive M input signals, wherein at least one of the input signals is a signal comprising at least two carriers. The switching matrix circuit is configured to selectively forward at least one input signal from at least one of the switching matrix inputs to the switching matrix outputs. The downconverter circuit includes a local oscillator and at least two downconverter sub-circuits. The at least two downconverter sub-circuits are configured, for example, to: down-convert a first signal component of the signal that is associated with a first one of the least two carriers based on a local oscillator signal and down-convert a second signal component of the signal that is associated with a second one of the least two carriers based on the local oscillator signal, respectively.

2. 发明公开

US20240230719A9 ELECTRICAL SIGNAL SAMPLING DEVICE 审中-公开
公开(公告)号：US20240230719A9
公开(公告)日：2024-07-11
申请号：US18278459
申请日：2022-02-23
申请人： RIGOL TECHNOLOGIES CO., LTD.
发明人： Hui SHI , Yue WANG
IPC分类号： G01R13/02
CPC分类号： G01R13/0272
摘要： Provided is an electrical signal sampling device. The electrical signal sampling device includes a pulse signal source, a first sampling module, and a signal delay module. The pulse signal source is configured to generate a pulse signal. The first sampling module is connected to the pulse signal source through a coupler. The coupler is configured to fan-out the pulse signal to generate a test input signal and a sampling incidence signal. The test input signal is input into a tested device from the coupler and then is coupled to form a test output signal. The first sampling module is configured to collect the sampling incidence signal and the test output signal through the coupler. The signal delay module generates N excitation signals through a preset delay.

3. 发明授权

US11994536B2 Digital oscilloscope having fractional calculus operation and display function 有权
$Digital oscilloscope having fractional calculus operation and display function$
公开(公告)号：US11994536B2
公开(公告)日：2024-05-28
申请号：US17515987
申请日：2021-11-01
申请人： UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
发明人： Bo Xu , Kai Chen , Libing Bai , Lulu Tian , Hang Geng , Yuhua Cheng , Songting Zou , Jia Zhao , Yanjun Yan , Xiaoyu Huang
IPC分类号： G01R13/40 , G01R13/02
CPC分类号： G01R13/403 , G01R13/02 , G01R13/0209
摘要： The present invention provides a system for data mapping and storing in digital three-dimensional oscilloscope, wherein the fixed coefficients, which are calculated according the parameters and settings of a digital oscilloscope, are stored into a fixed coefficient memory CO RAM, the fixed coefficients are outputted to N fractional operation units through N−1 D flip-flop delay units to multiply with the acquired data x(n) and then be accumulated, thus N fractional calculus results are obtained. In this way, N fractional calculus results can be obtained by performing L/N fractional calculus operations. N fractional calculus results are sent to a signal processing and display module, in which they are converted into a display data through a drawing thread, and the display data are sent to LCD for displaying, thus the fractional calculus operation and display of a input signal in a digital oscilloscope is realized.

4. 发明公开

US20240133922A1 ELECTRICAL SIGNAL SAMPLING DEVICE 审中-公开
公开(公告)号：US20240133922A1
公开(公告)日：2024-04-25
申请号：US18278459
申请日：2022-02-23
申请人： RIGOL TECHNOLOGIES CO., LTD.
发明人： Hui SHI , Yue WANG
IPC分类号： G01R13/02
CPC分类号： G01R13/0272
摘要： Provided is an electrical signal sampling device. The electrical signal sampling device includes a pulse signal source, a first sampling module, and a signal delay module. The pulse signal source is configured to generate a pulse signal. The first sampling module is connected to the pulse signal source through a coupler. The coupler is configured to fan-out the pulse signal to generate a test input signal and a sampling incidence signal. The test input signal is input into a tested device from the coupler and then is coupled to form a test output signal. The first sampling module is configured to collect the sampling incidence signal and the test output signal through the coupler. The signal delay module generates N excitation signals through a preset delay.

5. 发明公开

US20240125837A1 ADAPTIVE INSTRUMENT NOISE REMOVAL 审中-公开
公开(公告)号：US20240125837A1
公开(公告)日：2024-04-18
申请号：US18478556
申请日：2023-09-29
申请人： Tektronix, Inc.
发明人： Kan Tan
IPC分类号： G01R29/26 , G01R13/02
CPC分类号： G01R29/26 , G01R13/0272
摘要： A test and measurement instrument includes an input configured to receive an input signal from a device under test (DUT), an output display, and one or more processors configured to execute code that causes the one or more processors to measure a noise component of the input signal, compensate the measured noise component based on the measurement population and a relative amount of noise generated by the test and measurement instrument and a total noise measurement, and produce the compensated measured noise component as a noise measurement on the output display. Methods are also described.

6. 发明公开

US20240094272A1 MEASUREMENT APPLICATION DEVICE, MEASUREMENT APPLICATION SETUP AND METHOD 审中-公开
公开(公告)号：US20240094272A1
公开(公告)日：2024-03-21
申请号：US18450880
申请日：2023-08-16
申请人： Rohde & Schwarz GmbH & Co. KG
发明人： Tobias FASTNER , Yassen MIKHAILOV , Mohamed Nizar MELLOULI
IPC分类号： G01R27/28 , G01R13/02
CPC分类号： G01R27/28 , G01R13/029
摘要： The present disclosure provides a measurement application device, comprising a number of signal measurement paths, each one of the number of signal measurement paths comprising a plurality of signal processing components, and a scheduler coupled to the number of signal measurement paths, wherein the scheduler is configured to selectively control at least one of the signal measurement paths depending on a selected one of a number of operating modes to power down at least one of the signal processing components, or to power up at least one of the signal processing components. The present disclosure further provides a measurement application setup and a respective method.

7. 发明公开

US20240069070A1 DE-SKEW METHOD FOR DYNAMIC TESTING USING TRANSFER FUNCTION OF CURRENT SENSOR 审中-公开
公开(公告)号：US20240069070A1
公开(公告)日：2024-02-29
申请号：US18214063
申请日：2023-06-26
申请人： Keysight Technologies, Inc.
发明人： Takamasa Arai
IPC分类号： G01R13/02
CPC分类号： G01R13/0218
摘要： A dynamic test method includes configuring a dynamic test set-up for a device under test (DUT), the dynamic test set-up including at least one de-skewed voltage probe and at least one de-skewed current measurement cable connected to respective channels of an oscilloscope, and a current sensor connected to the de-skewed current measurement cable and configured to measure a current of the DUT. The method further includes conducting a dynamic test set-up for the DUT using the dynamic test set-up to obtain a current waveform for display on the oscilloscope, and applying a transfer function of the current sensor to the current waveform to display a corresponding de-embedded current waveform on the oscilloscope.

8. 发明公开

US20240027497A1 HIGH SPEED WAVEFORM ACQUISITIONS AND HISTOGRAMS USING GRAPHICS PROCESSING UNIT IN A TEST AND MEASUREMENT INSTRUMENT 审中-公开
公开(公告)号：US20240027497A1
公开(公告)日：2024-01-25
申请号：US18353638
申请日：2023-07-17
申请人： Tektronix, Inc.
发明人： Andy K. Lim , Daniel G. Knierim
IPC分类号： G01R13/02 , G06T1/20
CPC分类号： G01R13/0218 , G01R13/029 , G06T1/20
摘要： A test and measurement instrument has an acquisition system to receive and digitize a batch of waveforms into a batch of digitized waveforms, a memory configured as a raster plane having rows and columns, a graphics processing unit (GPU) capable of processing multiple threads to rasterize the batch of digitized waveforms to the raster plane to form a batch histogram and to group multiple threads into groups of a first type of group, assign each thread group of the first type of group to one column in the raster plane, execute a common instruction per thread group of the first type to populate the raster plane, and transfer the batch histogram upon completion, and a central processing unit (CPU) to receive the batch histogram from the GPU, and display a map of the batch histogram on a display.

9. 发明授权

US11874302B2 Digital oscilloscope and oscillogram generation system 有权
公开(公告)号：US11874302B2
公开(公告)日：2024-01-16
申请号：US17418374
申请日：2020-12-29
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Congrui Wu , Lihua Geng , Xitong Ma
IPC分类号： G01R13/02
CPC分类号： G01R13/0236 , G01R13/0245
摘要： A digital oscilloscope includes a video input interface, a data processing system, a video output interface, and a clock system. The video input interface is configured to receive a digital video signal; the data processing system receives the digital video signal and processes the digital video signal to generate an oscillogram signal, which includes an oscillogram image and further includes one of a menu image and a frame image of the digital video signal; and the video output interface is connected to the data processing system, receives the oscillogram signal and outputs it to external terminals. The oscilloscope can display a variety of image information, with high intuitiveness, simplified structure, improved portability, and is convenient to use in outdoor places.

10. 发明授权

US11867725B2 Measurement instrument 有权
公开(公告)号：US11867725B2
公开(公告)日：2024-01-09
申请号：US17091775
申请日：2020-11-06
申请人： Rohde & Schwarz GmbH & Co. KG
发明人： Bernhard Sterzbach
IPC分类号： G01R13/02
CPC分类号： G01R13/0218 , G01R13/02 , G01R13/029
摘要： The invention relates to a measurement instrument, such as an oscilloscope, comprising a measurement unit adapted to receive an input signal, and a processing unit adapted to classify the input signal, preferably based on signal parameters or characteristics of the input signal. wherein the processing unit is adapted to determine a signal analysis category for the input signal based on said classification of the input signal, and to match the determined signal analysis category to a control configuration, which defines settings and/or configurations of the measurement instrument, based on an adjustment function. The measurement instrument further comprises a user interface configured to display at least one graphical representation, in particular a waveform, of the input signal based on the control configuration, wherein the user interface is adapted to receive a user input to modify the settings and/or configurations of the measurement instrument, and wherein the processing unit is configured to dynamically adapt the adjustment function based on said user input.

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