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1. 发明申请

US20180120354A1 Digital oscilloscope and a method with parallel acquisition and signal post-processing 审中-公开
公开(公告)号：US20180120354A1
公开(公告)日：2018-05-03
申请号：US15858649
申请日：2017-12-29
申请人： Rohde & Schwarz GmbH & Co. KG
发明人： Andrew Schaefer , Thomas Kuhwald , Bernhard Nitsch
IPC分类号： G01R13/02
CPC分类号： G01R13/02 , G01R13/0254
摘要： A method for measuring at least one signal with a digital oscilloscope according to the invention acquires sampled values of the at least one signal in individual time ranges which are each defined in relation to a trigger time of a trigger event, which is detected in the at least one signal in each case by the digital oscilloscope. A post-processing of the sampled values acquired in each case in the individual time ranges then takes place. According to the invention, the acquisition and the post-processing are implemented in parallel.

2. 发明授权

US09958486B2 Circuit for detecting a knee of waveform 有权
公开(公告)号：US09958486B2
公开(公告)日：2018-05-01
申请号：US14923115
申请日：2015-10-26
申请人： Feeling Technology Corp.
发明人： Hsiwen Lee
IPC分类号： G01R23/00 , G01R19/25 , G01R13/02
CPC分类号： G01R23/005 , G01R13/0254 , G01R19/2509
摘要： A circuit for detecting a knee of waveform is disclosed in the present invention. The circuit detects the knee and a total oscillation time of a voltage waveform as a load switch of load circuit is turned off. In the circuit, a filter filters the voltage waveform to transmit a reference voltage to a first and a second comparator. When the first and the second comparator determine that the voltage waveform achieves a sum of the reference voltage and a set voltage, the first and the second comparator transmit a first and a second signal to a knee detection module. When the knee detection module receives the first signal rather than the second signal in an oscillation time, or receives the second signal rather than the first signal in the oscillation time, the knee detection module records the knee and trigger a time recorder computes the total oscillation time.

3. 发明授权

US09589377B1 Real-time gap free time domain density histogram display with arbitrary sample rate 有权
标题翻译：实时无间隙时域密度直方图显示，任意采样率
公开(公告)号：US09589377B1
公开(公告)日：2017-03-07
申请号：US13974531
申请日：2013-08-23
申请人： Keysight Technologies, Inc.
发明人： Robin A. Bordow
IPC分类号： G06T11/20
CPC分类号： G01R23/18 , G01R13/0254 , G01R13/0272
摘要： A real-time spectrum analyzer for measuring time domain data of an input signal includes an ADC, a resampler and a density histogram memory unit. The ADC has a first sample rate and is configured to acquire and digitize the input signal at the first sample rate to provide first samples. The resampler has a second sample rate and is configured to acquire the first samples at the second sample rate to provide second samples grouped in sample sets, where the second sample rate is selected so that each sample set includes an integer number of second samples per an integer number of periods at a frequency of interest of the input signal. The density histogram memory unit is configured to store at least a portion of the second samples output by the resampler for generating a continuous real-time gap-free density histogram corresponding to the time domain data.
摘要翻译：用于测量输入信号的时域数据的实时频谱分析仪包括ADC，重采样器和密度直方图存储器单元。 ADC具有第一采样率，并被配置为以第一采样率采集和数字化输入信号以提供第一采样。重采样器具有第二采样率并且被配置为以第二采样率获取第一采样以提供分组在采样集中的第二采样，其中选择第二采样率，使得每个采样集包括每一个采样率的第二采样的整数个输入信号感兴趣频率的整数个周期数。密度直方图存储单元被配置为存储由重采样器输出的第二采样的至少一部分，用于产生对应于时域数据的连续实时无间隙密度直方图。

4. 发明申请

US20170059618A1 WIRELESS OSCILLOSCOPE 审中-公开
标题翻译：无线OSCILLOSCOPE
公开(公告)号：US20170059618A1
公开(公告)日：2017-03-02
申请号：US15252456
申请日：2016-08-31
申请人： Aeroscope Labs LLC
发明人： Alexander L. LEE , Jonathan R. WARD
IPC分类号： G01R13/02 , G01R31/36
CPC分类号： G01R13/0254
摘要： A wireless handheld oscilloscope includes a casing and oscilloscope circuitry within the casing. The wireless handheld oscilloscope processes an electronic signal and wireless transmits digital waveform data representative of the electronic signal for display on the electronic device. The wireless handheld oscilloscope optionally includes circuitry configured to transmit an external trigger signal to a second wireless oscilloscope to synchronize with the second wireless oscilloscope.
摘要翻译：无线手持示波器包括壳体内的外壳和示波器电路。无线手持式示波器处理电子信号，并且无线发送表示电子信号的数字波形数据，以在电子设备上显示。无线手持示波器可选地包括经配置以将外部触发信号传输到第二无线示波器以与第二无线示波器同步的电路。

5. 发明授权

US09523717B2 Method for measuring the waveform capture rate of parallel digital storage oscilloscope 有权
标题翻译：并行数字存储示波器波形捕获率测量方法
公开(公告)号：US09523717B2
公开(公告)日：2016-12-20
申请号：US14057544
申请日：2013-10-18
申请人： University of Electronic Science and Technology of China
发明人： Hao Zeng , Peng Ye , Kuojun Yang , Guang Yang , Qinchuan Zhang
IPC分类号： G01R29/00 , G01R13/02
CPC分类号： G01R13/0272 , G01R13/0254
摘要： The present invention provides a method for measuring the waveform capture rate of parallel digital storage oscilloscope. On the basis of double pulse measurement, and in consideration of the asymmetry of acquisition and the refreshing time of parallel DSO, the present invention provides a step amplitude-frequency combined pulse measurement to measure the time for waveform acquisition and mapping Tmap, the number of captured waveforms before LCD refreshing Wacq and the dead time caused by LCD refreshing TDDT, and then calculates the measured average WCR of parallel DSO, according to the measured data, so that the WCR of parallel can be measured.
摘要翻译：本发明提供了一种用于测量并行数字存储示波器的波形捕获率的方法。在双脉冲测量的基础上，考虑到并行DSO的采集不对称性和刷新时间，本发明提供了一种步进幅度 - 频率组合脉冲测量，以测量波形采集和映射时间Tmap，数量在LCD刷新Wacq之前捕获的波形和由LCD刷新TDDT引起的死区时间，然后根据测量数据计算并行DSO的测量平均WCR，从而可以测量并行的WCR。

6. 发明申请

US20160363614A1 SAMPLING CIRCUIT, SAMPLING METHOD, SAMPLING OSCILLOSCOPE, AND WAVEFORM DISPLAY METHOD 审中-公开
标题翻译：采样电路，采样方法，采样振荡器和波形显示方法
公开(公告)号：US20160363614A1
公开(公告)日：2016-12-15
申请号：US15082332
申请日：2016-03-28
申请人： ANRITSU CORPORATION
发明人： Ken Mochizuki , Takashi Murakami , Seiya Suzuki
IPC分类号： G01R13/02 , H03L7/18
CPC分类号： G01R13/0272 , G01R13/0254
摘要： A frequency synthesizer 11a outputs a periodic signal r(t) at a frequency detuned by a predetermined frequency Δf [Hz] from a frequency of 1/integer of a frequency of a reference clock signal f0 synchronized with a signal to be measured ws. A first sampler unit 12 samples the signal to be measured ws at a timing of the trigger signal CLK. A second sampler unit 13a samples an I signal I(t) at the timing of the trigger signal CLK. A phase shifter 13b outputs a Q signal Q(t) obtained by shifting a phase of the reference clock signal f0 by 90°. A third sampler unit 13c samples the Q signal at the timing of the trigger signal CLK. A correction value calculation unit 13d calculates a correction value Δt(n) based on sampling data I(n) and Q(n) and a set value t(n) of a sampling time.
摘要翻译：频率合成器11a以与要测量的信号ws同步的参考时钟信号f0的频率的1 /整数的频率，输出以预定频率Δf[Hz]失谐的频率的周期信号r（t）。第一采样单元12在触发信号CLK的定时对采样的信号ws进行采样。第二取样器单元13a在触发信号CLK的定时对I信号I（t）进行采样。移相器13b输出通过将参考时钟信号f0的相位偏移90°而获得的Q信号Q（t）。第三取样器单元13c在触发信号CLK的定时对Q信号进行采样。校正值计算单元13d基于采样数据I（n）和Q（n）和采样时间的设定值t（n）来计算校正值Δt（n）。

7. 发明授权

US09442136B2 Real-time oscilloscope for generating a fast real-time eye diagram 有权
标题翻译：用于生成快速实时眼图的实时示波器
公开(公告)号：US09442136B2
公开(公告)日：2016-09-13
申请号：US14016129
申请日：2013-09-01
申请人： Keysight Technologies, Inc.
发明人： Christopher P. Duff
IPC分类号： G06F19/00 , G01R13/02 , G01R31/317
CPC分类号： G01R13/0254 , G01R13/0236 , G01R31/3171
摘要： Disclosed is an improved real-time oscilloscope (“IRTO”) for generating a fast worst-case real-time eye diagram from an input signal. The IRTO may include signal conditioning circuitry, a digitizer, an acquisition memory, a clock and data recovery (“CDR”) module, a worst-case real-time eye diagram rendering (“WRTER”) module, and a display.
摘要翻译：公开了一种改进的实时示波器（“IRTO”），用于从输入信号生成快速最差情况的实时眼图。 IRTO可以包括信号调节电路，数字转换器，采集存储器，时钟和数据恢复（“CDR”）模块，最坏情况的实时眼图呈现（“WRTER”）模块和显示器。

8. 发明授权

US09423426B1 Sampling and control circuit board for an inertial measurement unit 有权
标题翻译：用于惯性测量单元的采样和控制电路板
公开(公告)号：US09423426B1
公开(公告)日：2016-08-23
申请号：US13565890
申请日：2012-08-03
申请人： David T Chelmins , Richard T. Powis, Jr. , Obed Sands
发明人： David T Chelmins , Richard T. Powis, Jr. , Obed Sands
IPC分类号： G01D21/00 , G01R13/02
CPC分类号： G01R13/0254 , G01C21/265
摘要： A circuit board that serves as a control and sampling interface to an inertial measurement unit (“IMU”) is provided. The circuit board is also configured to interface with a local oscillator and an external trigger pulse. The circuit board is further configured to receive the external trigger pulse from an external source that time aligns the local oscillator and initiates sampling of the inertial measurement device for data at precise time intervals based on pulses from the local oscillator. The sampled data may be synchronized by the circuit board with other sensors of a navigation system via the trigger pulse.
摘要翻译：提供用作惯性测量单元（“IMU”）的控制和采样接口的电路板。电路板还配置为与本地振荡器和外部触发脉冲进行接口。电路板还被配置为从外部源接收外部触发脉冲，该时间对准本地振荡器并且基于来自本地振荡器的脉冲以精确的时间间隔启动用于数据的惯性测量装置的采样。采样数据可以通过电路板与导航系统的其它传感器经由触发脉冲同步。

9. 发明申请

US20160179073A1 Real Time Trigger Using A Finite State Machine Having A Counting State 审中-公开
标题翻译：具有计数状态的有限状态机实时触发
公开(公告)号：US20160179073A1
公开(公告)日：2016-06-23
申请号：US14578198
申请日：2014-12-19
申请人： Keysight Technologies, Inc.
发明人： Andrew Robert Lehane , Antony J. A. Kirkham
IPC分类号： G05B19/045
CPC分类号： G01R13/0254 , G05B2219/23289
摘要： An apparatus that searches for a pattern in a signal is disclosed. The apparatus can be used to implement a real time trigger in an instrument such as a high speed oscilloscope. The apparatus includes a symbol generator and a finite state machine (FSM). The symbol generator receives an ordered sequence of signal values and converts the ordered sequence of signal values into an ordered sequence of symbols, each symbol having a plurality of states. The FSM receives the ordered sequence of symbols and generates a match signal if the ordered sequence of symbols includes a target sequence specified by a regular expression that includes a counting limitation on one of the symbol states. The FSM includes a counting state that includes a counter that counts instances of the one of the symbol states.
摘要翻译：公开了一种在信号中搜索图案的装置。该装置可用于在诸如高速示波器的仪器中实现实时触发。该装置包括符号发生器和有限状态机（FSM）。符号发生器接收信号值的有序序列，并且将有序序列的信号值转换成有序的符号序列，每个符号具有多个状态。 FSM接收有序的符号序列，并且如果有序的符号序列包括由包括对符号状态之一的计数限制的正则表达式指定的目标序列，则产生匹配信号。 FSM包括计数状态，其包括计数符号状态之一的计数器。

10. 发明授权

US09285395B2 Synchronizer for a data acquisition system 有权
标题翻译：用于数据采集系统的同步器
公开(公告)号：US09285395B2
公开(公告)日：2016-03-15
申请号：US12605964
申请日：2009-10-26
申请人： Nelson Hall
发明人： Nelson Hall
IPC分类号： G01R13/02 , G01R31/12 , G01R31/14
CPC分类号： G01R13/0254 , G01R31/1272 , G01R31/14
摘要： A data acquisition system is provided that in one example comprises a sensor electrically coupled to a data acquisition unit via a signal splitter. In use, the sensor senses one or more signals transmitted over a “live” power cable carrying, for example, 50 Hz or 60 Hz, medium voltage power. The one or more signals are then transmitted to the data acquisition unit to be stored, displayed, and/or analyzed. The data acquisition system includes a synchronizer that allows the data acquisition unit to synchronize the storage of the sensed signals to the frequency of the power transmitted over the tested power cable or system. In one embodiment, the synchronizer provides an accurate phase angle reference or trigger signal for accurate phase resolved data acquisition and testing.
摘要翻译：提供了一种数据采集系统，其在一个示例中包括经由信号分离器电耦合到数据采集单元的传感器。在使用中，传感器感测通过承载例如50Hz或60Hz的中等电压功率的“带电”电力电缆传输的一个或多个信号。然后将一个或多个信号发送到数据获取单元以进行存储，显示和/或分析。数据采集系统包括同步器，其允许数据采集单元将感测到的信号的存储与通过测试的电力电缆或系统传输的功率的频率同步。在一个实施例中，同步器提供精确的相位角参考或触发信号，用于精确的相位解析数据采集和测试。

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