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1. 发明公开

EP2999968A1 VERFAHREN UND SCHALTUNG ZUR BEWERTUNG PULSWEITENMODULIERTER SIGNALE 审中-公开
公开(公告)号：EP2999968A1
公开(公告)日：2016-03-30
申请号：EP14720075.2
申请日：2014-04-23
申请人： ZF Friedrichshafen AG
发明人： WEINL, Florian
IPC分类号： G01R29/027
CPC分类号： G01R29/0273 , G01R29/023 , G01R29/0276 , G01R29/0892
摘要： Method for assessing a pulse-width-modulated signal, wherein a pulse-width-modulated signal to be assessed is provided at a first input (10) of a microcontroller (8) and a signal dependent on the pulse-width-modulated signal to be assessed is provided at a second input (11) of the microcontroller (8) for assessment by the microcontroller, wherein the pulse-width-modulated signal to be assessed is applied to a voltage divider (13) in order to use the pulse-width-modulated signal to be assessed to generate the signal dependent on the latter, wherein the microcontroller (8) respectively determines an interval of time between signal edges in the pulse-width-modulated signal to be assessed and between signal edges in the signal dependent on the pulse-width-modulated signal, and wherein the signal assessment is carried out on the basis of a difference between the interval of time between the signal edges in the pulse-width-modulated signal to be assessed and the interval of time between the signal edges in the signal dependent on the pulse-width-modulated signal.
摘要翻译：一种评估脉冲宽度调制信号的方法，其中要评估的脉宽调制信号被施加到微控制器的第一输入端和取决于被评估的脉宽调制信号的信号，应用于微控制器的第二输入用于评估。被评估的脉冲宽度调制信号被施加到分压器以产生取决于其的信号。对于要评估的脉冲宽度调制信号和对于依赖于相同信号的信号，在每种情况下，微控制器确定相应信号的信号边沿之间的时间间隔，并且基于差异来评估信号在要评估的脉冲宽度调制信号中的信号边沿之间的时间间隔与依赖于该信号的信号中的信号边沿之间的时间间隔之间。

2. 发明公开

EP2656111A1 PROCEDE DE MESURE DU TAUX DE COMPTAGE DE COÏNCIDENCES, UTILISANT UNE CONVERSION TEMPS-NUMERIQUE ET UNE METHODE DE TEMPS MORT RECONDUCTIBLE AVEC MESURE DU TEMPS ACTIF 审中-公开
标题翻译：测量巧合方法计算使用时间数值转换和复位TOTZEITVERFAHRENS有测量活动时间
公开(公告)号：EP2656111A1
公开(公告)日：2013-10-30
申请号：EP11804670.5
申请日：2011-12-19
申请人： Commissariat à l'Énergie Atomique et aux Énergies Alternatives
发明人： BOBIN, Christophe
IPC分类号： G01T1/17 , G01T1/172
CPC分类号： G01R29/0273 , G01T1/171 , G01T1/172
摘要： Method for measuring the coincidence count rate, using a time-numeric conversion and a resettable dead time method with measurement of the active time. The count rate of events that coincide between radiation detectors (4, 6, 8) operating in parallel is measured, the time-based fluctuations in the coinciding events are converted to a numerical form and the resettable dead time method with measurement of the active time is used to eliminate all the other correlated events likely to occur in the same detector. According to the invention, the time-based distributions of the intervals of time separating pulses are logged and the count rate of the coinciding events is measured using the logged time-based distributions. The invention applies notably to the triple to double coincidences ratio method.

3. 发明公开

EP1701169A1 A method and apparatus for measuring duty cycle 审中-公开
标题翻译： Verfahren und Vorrichtung zur Messung desTastverhältnisses
公开(公告)号：EP1701169A1
公开(公告)日：2006-09-13
申请号：EP06004564.8
申请日：2006-03-07
申请人： Synthesys Research, Inc.
发明人： Willis, Andre
IPC分类号： G01R23/10 , H03K5/19
CPC分类号： G01R29/0273
摘要： Disclosed herein is a method and apparatus used to the measure duty cycle of a clocking waveform utilizing minimal hardware and achieving high accuracy. This invention utilizes digital sampling of the signal to be measured at a rate that can be significantly lower then the clocking frequency of the signal to be measured. It accomplishes broad-band, multi-frequency use by using a time-varying frequency for the sampling clock to make sure that the sampling clock is asynchronous with the frequency of the clocking signal to be measured. The average ratio of the sampled ones (or zeros) as compared to the total number of samples is then computed to derive the measurement of duty cycle.
摘要翻译：本文公开了一种用于利用最小硬件并实现高精度来测量占空比波形的占空比的方法和装置。本发明利用待测信号的数字采样，其速度可以明显低于待测信号的时钟频率。它通过对采样时钟使用时变频率来实现宽带，多频使用，以确保采样时钟与要测量的时钟信号的频率异步。然后计算与样本总数相比的采样（或零）的平均比例，以得出占空比的测量。

4. 发明授权

EP1051631B1 METHOD AND APPARATUS FOR JITTER ANALYSIS 有权
标题翻译：抖动仪和方法的抖动分析
公开(公告)号：EP1051631B1
公开(公告)日：2005-01-12
申请号：EP99904494.4
申请日：1999-01-29
申请人： Wavecrest Corporation
发明人： WILSTRUP, Jan, Brian , PETRICH, Dennis
IPC分类号： G01R29/02
CPC分类号： G01R29/26 , G01R29/0273 , H04L1/205

5. 发明公开

EP1051631A1 METHOD AND APPARATUS FOR JITTER ANALYSIS 有权
标题翻译：抖动仪和方法的抖动分析
公开(公告)号：EP1051631A1
公开(公告)日：2000-11-15
申请号：EP99904494.4
申请日：1999-01-29
申请人： Wavecrest Corporation
发明人： WILSTRUP, Jan, Brian , PETRICH, Dennis
IPC分类号： G01R29/02
CPC分类号： G01R29/26 , G01R29/0273 , H04L1/205
摘要： A method, apparatus, and article of manufacture for separating the components of a jitter signal. The method includes the steps of obtaining measurements of the spans of a signal, generating variation measurements for each of the spans, transforming the variation estimates from a time domain to a frequency domain, and determining the random component and the periodic component of the jitter signal.

6. 发明公开

EP1007983A4 ANALYSIS OF NOISE IN REPETITIVE WAVEFORMS 失效
标题翻译：在重复波形噪声分析
公开(公告)号：EP1007983A4
公开(公告)日：2000-07-12
申请号：EP98911765
申请日：1998-03-13
申请人： WAVECREST CORP
发明人： WILSTRUP JAN B , PETRICH DENNIS M , ULSUND STEVEN H , KIMSAL CHRISTOPHER , EMINETH MARK J
IPC分类号： G01R23/10 , G01R29/02 , G01R29/027 , G01R29/26 , G01R31/319 , G04F10/10 , G06F17/14 , G06F17/15
CPC分类号： G01R29/0273 , G01R29/02 , G01R29/26
摘要： A system is disclosed for precisely measuring time intervals, used to either characterize or diminish noise components in repetitive waveforms. An interval timer generates a whole number count of cycles in combination with beginning and ending ramps capable of resolving fractions of a cycle, to accurately register the time interval. Selection logic can be implemented to time either single periods or spans of multiple consecutive periods of the waveforms. Multiple time measurements are arranged in sets, each set corresponding to a different span of 'N' consecutive periods over a range of values for N. A variance of each set is generated, and an array of variance vs N provides a function having properties of an auto-correlation function. Instrument jitter can be reduced based on measurements of period spans rather than individual periods, and is reduced in proportion to the increasing size of the measured span. These techniques are enhanced by random statistical samples, obtained by a dithering of the measurement rate. This also diminishes the impact of aliasing products.

7. 发明公开

EP0651535A3 Multi-port repeater. 失效
标题翻译：中继器与多个栅极。
公开(公告)号：EP0651535A3
公开(公告)日：1998-07-08
申请号：EP94203613
申请日：1991-09-24
申请人： ADVANCED MICRO DEVICES INC
发明人： STAAB DAVID , VIJEH NADER
IPC分类号： H04B3/36 , G01R29/027 , H03K5/02 , H03K5/156 , H03K5/26 , H03K19/0185 , H04L12/28 , H04L12/44 , H04L12/46 , H04L25/02 , H04L25/08 , H04L25/49
CPC分类号： H04L12/44 , G01R29/0273 , H03K5/023 , H03K5/156 , H03K19/018578 , H04L12/46 , H04L25/0272 , H04L25/08 , H04L25/085 , H04L25/4904
摘要： A discrete integrated repeater device (50) and port MAU/AUI functions shares resources among its several ports. The device satisfies an IEEE 802.3 specification for execution of a link integrity test. The device is able to selectively disable or enable the link integrity test function for particular ports. A plurality of latches, one associated with each port, is set upon carrier sense detection at the particular port. A token passing mechanism implemented with a daisy chained line coupled to each latch enables a polling of each latch to provide carrier sense information about each port in a serial format. The device shares a single PLL among all its ports by producing a logical sum of carrier sense inputs to enable activation of the PLL. A collision indication signal will override operation of the PLL to ensure data integrity and to allow the PLL to reacquire lock on its reference clock.

8. 发明公开

EP0668509A1 Procédé et dispositif pour mesurer la gigue d'un signal numérique 失效
标题翻译： Verfahren und Anordnung zum Messen des Jitters eines digitalen Signals。
公开(公告)号：EP0668509A1
公开(公告)日：1995-08-23
申请号：EP95400339.8
申请日：1995-02-17
申请人： AUDIO VISUEL SYSTEMES, Société Anonyme dite:
发明人： Martin, Bruno Jean-Marie
IPC分类号： G01R29/027
CPC分类号： G01R29/0273
摘要： La présente invention concerne un procédé et un dispositif (1) pour déterminer la gigue d'un signal numérique, notamment utilisé dans le domaine de la télévision.
Selon l'invention, ledit dispositif (1) comporte :

un séquenceur (8) déterminant une fenêtre temporelle récurrente ;
un convertisseur temps amplitude (2) engendrant des rampes de mesure en fonction de la position des transitions positives dudit signal numérique par rapport à ladite fenêtre temporelle récurrente ;
un convertisseur analogique numérique (4) convertissant les amplitudes desdites rampes de mesure en valeurs numériques ; et
un système de traitement numérique (6) déterminant la gigue du signal à partir desdites valeurs numériques.
摘要翻译：输入数字信号（3）被提供给时间振幅转换器（2）和定序器（8）。转换器（2）的输出被馈送到A / D转换器（4），然后馈送到数字处理器（6）。定序器（8）为其他单元产生一个复现窗口和时钟时间。时间振幅转换器（2）接收要测量的信号，并产生斜波波形，其是复现窗口内的信号的正转换位置的函数。处理器（6）使用斜坡波形的幅度来确定信号抖动。

9. 发明授权

EP0226631B1 METHOD AND APPARATUS FOR EDITING PARTICLE PRODUCED ELECTRICAL PULSES 失效
标题翻译：用于编制颗粒生产电脉冲的方法和装置
公开(公告)号：EP0226631B1
公开(公告)日：1993-03-17
申请号：EP86904494.1
申请日：1986-05-30
申请人： COULTER ELECTRONICS, LTD.
发明人： DUNSTAN, Harvey, J. , HARFIELD, John, G. , KNIGHT, Paul , PODGORNEY, Harvey, J.
IPC分类号： H03K5/22 , H03K5/153 , G01N15/12 , G01R29/02 , G01R29/027 , G01R19/04
CPC分类号： G01R29/02 , G01N15/1227 , G01R19/04 , G01R29/0273 , H03K5/1532
摘要： Particle produced pulses (10, 12, 14) are evaluated on an individual basis for shape symmetry, with significantly asymmetric pulses, becoming subject to editing, i.e. exclusion. Pulse symmetry is determined by measuring the areas (A, B) under the pulse before and after the first pulse before and after the first pulse amplitude peak (16, 20, 24) and then by comparing those pulse areas with respect to pre-established limits which are not based upon any of the pulses then being evaluted.

10. 发明公开

EP0425303A3 Delay measuring circuit 失效
标题翻译：延时测量电路
公开(公告)号：EP0425303A3
公开(公告)日：1992-08-05
申请号：EP90311759.6
申请日：1990-10-26
申请人： AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL INC.
发明人： van Driest, Hans , Kruithof, Richard , van Bokhorst, Hendrik
IPC分类号： G01R31/18
CPC分类号： G01R25/08 , G01R29/0273
摘要： In a delay measuring circuit (10), an input clock signal (13) is applied to a multitapped delay line (14), the output taps of which are connected to a switch (26) which selects one of the switch inputs for connection to a phase comparator (34) which compares the input clock signal (13), delayed in a delay device (38) to compensate for the delay inherent in the switch (26), with the output of the switch (26). The input clock signal is also applied to a counter (22), and when the phase comparator (34) detects a phase match, the counter value is stored in a latch (32), the counter 122) is reset to a predetermined value, and the counting procedure resumed. The latch (32) thus always stores a value dependent on the delay of an individual delay cell (16-1 to 16-N). This stored value can be applied to various uses, such as in a timing watchdog circuit or for generating accurate delays.

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