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1. 发明授权

EP1100234B1 ATM service disruption measurement 有权
标题翻译： ATM服务中断测量
公开(公告)号：EP1100234B1
公开(公告)日：2005-02-09
申请号：EP00309671.6
申请日：2000-11-01
申请人： Agilent Technologies, Inc. (a Delaware corporation)
发明人： Carder, Norman , Johnstone, Colin
IPC分类号： H04L12/56
CPC分类号： H04Q11/0478 , H04L2012/5627 , H04L2012/5628

2. 发明公开

EP1329732A1 Determining cable attenuation and loss of signal threshold 审中-公开
标题翻译： Bestimmung vonKabeldämpfungund Signalschwellenverlust
公开(公告)号：EP1329732A1
公开(公告)日：2003-07-23
申请号：EP02250347.8
申请日：2002-01-18
申请人： Agilent Technologies, Inc. (a Delaware corporation)
发明人： Stephen, Alexander , Rasaratnam, Daya , Johnstone, Colin
IPC分类号： G01R31/02 , G01R29/027
CPC分类号： H04B3/48
摘要： Attenuation of a pulsed signal traversing a cable is assessed by identifying a pulse in a signal received after traversing the cable, measuring the slope of the pulse between first and second reference signal levels, such as 25% and 75% of the peak pulse magnitude, and determining an indication of the cable attenuation from the measured slope. The cable attenuation may in turn be used to determine a threshold for indicating loss of signal during a measurement operation.
摘要翻译：穿过电缆的脉冲信号的衰减通过识别在穿过电缆之后接收到的信号中的脉冲来测量第一和第二参考信号电平之间的脉冲的斜率，例如峰值脉冲幅度的25％和75％以及从测量的斜率确定电缆衰减的指示。电缆衰减又可用于确定在测量操作期间指示信号损失的阈值。

3. 发明公开

EP1722306A2 Apparatus and method for generating a Complementary Cumulative Distribution Function (CCDF) curve 审中-公开
标题翻译：装置和方法，用于产生互补累积分布函数（CCDF）曲线
公开(公告)号：EP1722306A2
公开(公告)日：2006-11-15
申请号：EP06112944.1
申请日：2006-04-21
申请人： Agilent Technologies, Inc. - a Delaware corporation -
发明人： Johnstone, Colin , Breakenridge, Eric
IPC分类号： G06F17/18 , H04L1/20
CPC分类号： G06F17/18 , G11C7/16
摘要： In apparatus for generating a Complementary Cumulative Distribution Function (CCDF) curve for an input signal, an analog to digital converter (ADC) samples the input signal at sampling points to provide a parameter value corresponding to a desired parameter of the input signal at each sampled point. A memory element provides a frequency count of occurrence of each received parameter value from an address in the memory corresponding to the received parameter value. An adder receives the frequency count, increments the count and provides the incremented count to an input of the memory element for writing back into the address corresponding to the received parameter value. A CCDF curve generating module reads the frequency count stored in the memory element corresponding to each parameter value and generates a CCDF curve therefrom.
摘要翻译：在用于在输入信号产生一个互补累积分布函数（CCDF）曲线在采样点到模拟到数字转换器（ADC）采样输入信号，以提供一个参数值在每个采样对应于输入信号的期望参数装置点。一种存储元件从在存储器对应于所述接收到的参数值的地址提供每一接收到的参数值的出现的计数频率。加法器接收所述频率计数，递增计数，并提供增加的计数在所述存储元件的输入写回地址对应于接收到的参数值。甲CCDF曲线生成模块读取存储在存储器元件对应于每个参数值与基因率从CCDF曲线有频率计数。

4. 发明公开

EP1100234A3 ATM service disruption measurement 有权
标题翻译： ATM服务中断测量
公开(公告)号：EP1100234A3
公开(公告)日：2003-06-11
申请号：EP00309671.6
申请日：2000-11-01
申请人： Agilent Technologies, Inc. (a Delaware corporation)
发明人： Carder, Norman , Johnstone, Colin
IPC分类号： H04L12/56
CPC分类号： H04Q11/0478 , H04L2012/5627 , H04L2012/5628
摘要： A data analyzer system (60) is used to measure the duration of a service disruption event in an asynchronous transfer mode (ATM) data transmission channel (67) carrying an ATM stream of identifiable data cells in a defined order. The data analyzer system (60) comprises error detection means (70) for determining whether or not any of the data cells have been corrupted in transmission through the data transmission channel when the transmission is disrupted, and a disruption timer (73) for timing the service disruption event starting when a first corrupted data cell is detected by the error detection means (70). The data analyzer system has a guard timer (74) for timing a guard time interval when uncorrupted data cells are detected by the error detection means (70), and control means (71) for controlling the operation of the disruption timer (73) and guard timer (74) in response to the determination by the error detection means (70) of whether or not any data cells have been corrupted. The disruption timer (73) is operable to time a service disruption event from the start of the disruption event until the guard timer (74) has timed a predetermined guard time, and the guard timer (74) is operable to time the guard time interval when corrupted data cells are followed by a resumption of uncorrupted data cells.

5. 发明公开

EP1313277A1 Method for determining the magnitude of AMI-pulses by calculating the median value 审中-公开
标题翻译： Verfahren zur Bestimmung derGrösseum AMI-pulsen durch Berechnung eines medians
公开(公告)号：EP1313277A1
公开(公告)日：2003-05-21
申请号：EP01309711.8
申请日：2001-11-16
申请人： Agilent Technologies, Inc. (a Delaware corporation)
发明人： Johnstone, Colin , Stephen, Alexander John
IPC分类号： H04L25/06 , H04L25/49
CPC分类号： H04L25/062 , H04L25/4925
摘要： The magnitude of a pulse in a signal having both positive and negative polarity pulses (for example, a ternary PDH signal) is determined by measuring the magnitude of multiple samples of the signal. A reference level for the signal is determined from a plurality of these sample magnitudes, and the magnitude of a pulse in the signal is determined from the sample magnitudes and the reference level.
摘要翻译：通过测量信号的多个样本的幅度来确定具有正极性和负极性脉冲（例如，三元PDH信号）的信号中的脉冲的幅度。从多个这些采样幅度确定信号的参考电平，并根据采样幅度和参考电平确定信号中脉冲的幅度。

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