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Patent Agency Ranking
公开(公告)号：US10885604B2
公开(公告)日：2021-01-05
申请号：US16435465
申请日：2019-06-08
Inventor： Wuhuang Huang , Pan Wang , Jun Jiang , Peng Ye , Kuojun Yang , Lianping Guo , Hao Zeng , Shuo Wang , Jian Gao
Abstract: The present invention provides a method for 3D waveform mapping of full-parallel structure, first, a 3D waveform mapping database is created according to the size of a 3D waveform image, the number of bits of probability value and the ADC's resolution of data acquisition module, then the 3D waveform mapping database is divided into Mt×Ma independent mapping storage areas along the time axis and the amplitude axis, and each independent mapping storage area is assigned a RAM, then RAMs are selected and addresses are calculated based on the sampling values and the structure of created 3D waveform mapping database, finally, parallel mappings are performed simultaneously on the time axis and the amplitude axis according to the selected RAMs and calculated addresses. Thus, the mapping time are shorten, especially in vector mapping mode, several RAMs are used for mapping, so the WCR of DSO is improved.
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公开(公告)号：US09130583B2
公开(公告)日：2015-09-08
申请号：US14584599
申请日：2014-12-29
Inventor： Wuhuang Huang , Kuojun Yang , Houjun Wang , Jun Jiang , Hao Zeng , Duyu Qiu , Peng Ye , Qinchuan Zhang , Shulin Tian
CPC classification number: H03M1/128 , G06F3/038 , G06F3/044 , G06T17/20 , H03M1/00 , H03M1/12 , H03M1/1285
Abstract: For the signal under acquisition which varies monotonically before and after the trigger time, a method for full-digital random sampling employs first sampled data before the trigger time and first sampled data after the trigger time to fit a curve, and obtains an intersection point of triggering level and the fitted curve, then, calculates the time interval between sampled data after the trigger time and the intersection point in the end, reconstructs the original signal, i.e. the signal under acquisition by a time interval of each acquisition. Thus, an analog trigger circuit and a time measurement circuit of conventional random sampling system can be eliminated, that simplifies the circuit design of data acquisition system and decreases its hardware complexity. Moreover, the higher sampling rate for the signal under acquisition is attained, and more waveform details are obtained.
Abstract translation: 对于在触发时间之前和之后单调变化的信号，全数字随机采样的方法在触发时间之前采用第一采样数据，并在触发时间之后采用第一采样数据以拟合曲线，并获得 触发电平和拟合曲线，然后计算触发时间之后的采样数据与最终交点之间的时间间隔，重建原始信号，即每次采集时间间隔内的采集信号。 因此，可以消除常规随机采样系统的模拟触发电路和时间测量电路，简化了数据采集系统的电路设计，降低了硬件复杂度。 此外，获得获取信号的较高采样率，并获得更多的波形细节。
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3.发明授权公开(公告)号：US10145819B2
公开(公告)日：2018-12-04
申请号：US14933648
申请日：2015-11-05
Inventor： Feng Tan , Duyu Qiu , Peng Ye , Hao Zeng , Yong Zhao , Jun Jiang , Huiqing Pan , Lianping Guo , Shuhao Wu
IPC: G01N29/02 , G01N29/036 , G01N29/44
Abstract: The present invention provides a method for a method for measuring the properties of liquid based on a quartz crystal microbalance sensor, which employs two measurements to obtain two frequency shifts of the QCM sensor induced by two different volume of the sample liquid. The present invention creatively established the relationship between the density and viscosity of sample liquid and the frequency shifts of QCM sensor. With present invention, the density and viscosity of sample liquid can be obtained through two frequency shifts. Comparing to the conventional liquid property measurement. The measuring procedure of present invention are more simple, and the measuring results are more accurate. Moreover, the present invention consumes less volume of sample liquid, and has the features such as online, real time and quantitative.
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公开(公告)号：US10677817B2
公开(公告)日：2020-06-09
申请号：US15879146
申请日：2018-01-24
Inventor： Kuojun Yang , Wuhuang Huang , Peng Ye , Qinchuan Zhang , Hao Zeng , Duyu Qiu , Jun Jiang , Huiqing Pan , Lianping Guo , Feng Tan
IPC: G01R13/02
Abstract: A method for oscilloscope 3D mapping in scan mode. The input signal is acquired using a real-time sampling rate which is Dr times higher, thus more sampling points, i.e. Dr acquired data can be obtained during the time interval between two consecutive horizontal pixels. The Dr acquired data are mapped into a same column of the screen to implement fluorescent waveform display. In addition, to realize the scanning display, a flag X is introduced into the three-dimensional database, when the screen refresh signal arrives, the first Ds acquired data are read out from the unread acquired data in FIFO memory. The three-dimensional database is updated from the flag X, which make the leftmost waveform always be the oldest waveform, the rightmost waveform always be the newest waveform. Thus the 3D mapping is realized in scan mode, letting the DSO have a fluorescent waveform display at slow time-base.
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公开(公告)号：US10775418B2
公开(公告)日：2020-09-15
申请号：US15859987
申请日：2018-01-02
Inventor： Jun Jiang , Lianping Guo , Xiaoman Jiao , Wuhuang Huang , Hao Zeng , Feng Tan
IPC: G01R13/02
Abstract: The present invention provides a method and system for oscilloscope triggering. The power spectrum entropy threshold Gp and the singular spectrum entropy threshold Gs are obtained by calculating the averages of the power spectrum entropy Hi and the singular spectrum entropy Ei of the first a waveform data frames respectively. Then, for the waveform data frame xa+1(τ) and thereafter, If the power spectrum entropy Hi is greater than power spectrum entropy threshold Gp and the singular spectrum entropy Ei is greater than the singular spectrum entropy threshold Gs, the waveform data frame xi(τ) is an abnormal signal, the second trigger occurs, storing and displaying the waveform data frame. Thus the storage and display of abnormal signal is realized.
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