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1. 发明授权

US08155165B2 Method of characterizing parameters and removing spectral components of a spread spectrum clock in a communications signal 有权
标题翻译：在通信信号中表征参数和去除扩频时钟的频谱分量的方法
公开(公告)号：US08155165B2
公开(公告)日：2012-04-10
申请号：US12211009
申请日：2008-09-15
申请人： Maria Agoston , Laszlo J. Dobos , Pavel R. Zivny
发明人： Maria Agoston , Laszlo J. Dobos , Pavel R. Zivny
IPC分类号： H04B1/00
CPC分类号： H04B15/02 , H04B2215/067
摘要： Parameters of a spread spectrum clock signal in a communication signal are characterized by acquiring voltage samples of the communication signal at a nominal time location of an edge of the communication signal. The voltage samples are converted to time samples and the difference between the maximum and minimum time values is determined at the nominal time location. A spread spectrum clock magnitude number is generated by dividing the difference between the maximum and minimum time values by the nominal time location of the acquired voltage samples of the spread spectrum clock signal. A spread spectrum modulation profile of a spread spectrum clock signal is estimated by over sampling the time samples using an aliased index value to generate over sampled triangular waveforms representing the spread spectrum clock modulation profile. One of the over sampled triangular waveforms is use to generate the spread spectrum clock modulation profile.
摘要翻译：通信信号中的扩频时钟信号的参数的特征在于在通信信号的边缘的标称时间位置处获取通信信号的电压采样。将电压样本转换为时间采样，并在标称时间位置确定最大和最小时间值之间的差值。通过将最大和最小时间值之间的差除以所获取的扩频时钟信号的电压样本的标称时间位置来产生扩频时钟幅度数。通过使用混叠索引值对时间采样进行过采样来估计扩频时钟信号的扩频调制分布，以产生表示扩频时钟调制分布的过采样三角波。一个过采样三角波形用于产生扩频时钟调制曲线。

2. 发明申请

US20090074030A1 Method of Characterizing Parameters and Removing Spectral Components of a Spread Spectrum Clock in a Communications Signal 有权
标题翻译：表征通信信号中扩频时钟的参数和去除频谱分量的方法
公开(公告)号：US20090074030A1
公开(公告)日：2009-03-19
申请号：US12211009
申请日：2008-09-15
申请人： Maria Agoston , Laszlo J. Dobos , Pavel R. Zivny
发明人： Maria Agoston , Laszlo J. Dobos , Pavel R. Zivny
IPC分类号： H04B1/69
CPC分类号： H04B15/02 , H04B2215/067
摘要： Parameters of a spread spectrum clock signal in a communication signal are characterized by acquiring voltage samples of the communication signal at a nominal time location of an edge of the communication signal. The voltage samples are converted to time samples and the difference between the maximum and minimum time values is determined at the nominal time location. A spread spectrum clock magnitude number is generated by dividing the difference between the maximum and minimum time values by the nominal time location of the acquired voltage samples of the spread spectrum clock signal. A spread spectrum modulation profile of a spread spectrum clock signal is estimated by over sampling the time samples using an aliased index value to generate over sampled triangular waveforms representing the spread spectrum clock modulation profile. One of the over sampled triangular waveforms is use to generate the spread spectrum clock modulation profile.
摘要翻译：通信信号中的扩频时钟信号的参数的特征在于在通信信号的边缘的标称时间位置处获取通信信号的电压采样。将电压样本转换为时间采样，并在标称时间位置确定最大和最小时间值之间的差值。通过将最大和最小时间值之间的差除以所获取的扩频时钟信号的电压样本的标称时间位置来产生扩频时钟幅度数。通过使用混叠索引值对时间采样进行过采样来估计扩频时钟信号的扩频调制分布，以产生表示扩频时钟调制分布的过采样三角波。一个过采样三角波形用于产生扩频时钟调制曲线。

3. 发明申请

US20110103451A1 System for Independently Modifying Jitter and Noise Components in a Signal Measurement Device 审中-公开
标题翻译：用于独立修改信号测量装置中的抖动和噪声组件的系统
公开(公告)号：US20110103451A1
公开(公告)日：2011-05-05
申请号：US12610085
申请日：2009-10-30
申请人： Maria Agoston , Ronald M. Henricksen , Pavel R. Zivny
发明人： Maria Agoston , Ronald M. Henricksen , Pavel R. Zivny
IPC分类号： H04B17/00
CPC分类号： G01R31/31709 , H04L1/205
摘要： A digitizing instrument is used for modifying pattern data and jitter and noise components of a communication signal. In a typical implementation, the midpoints of a rising edge slope and horizontal portion of the communication signal are determined and multiple digital data records are acquired at the midpoints. The data sample records are transformed to frequency components and the random jitter and noise, and periodic jitter and noise components are determined. A correlated pattern data and the jitter and noise components are matrix elements in a simulated signal channel having communication system elements. Each correlated pattern data and jitter and noise component may be modified for each of the communication system element. The selectively modified correlated pattern data and jitter and noise components are combined to produce a modified communication signal that is displayed as a numeric table, eye diagram or bit error rate presentation.
摘要翻译：数字化仪器用于修改通信信号的模式数据和抖动和噪声分量。在典型的实现中，确定通信信号的上升沿和水平部分的中点，并在中点获取多个数字数据记录。将数据采样记录转换为频率分量，并确定随机抖动和噪声，并确定周期性抖动和噪声分量。相关图案数据和抖动和噪声分量是具有通信系统元件的模拟信号通道中的矩阵元素。可以为每个通信系统元件修改每个相关图案数据和抖动和噪声分量。选择性地修改的相关图案数据和抖动和噪声分量被组合以产生被显示为数字表，眼图或误码率显示的修改的通信信号。

4. 发明申请

US20120158334A1 System for Independently Modifying Jitter and Noise Components in a Signal Digitizing Instrument 有权
标题翻译：用于独立修改信号数字化仪器中的抖动和噪声分量的系统
公开(公告)号：US20120158334A1
公开(公告)日：2012-06-21
申请号：US13333970
申请日：2011-12-21
申请人： Maria Agoston , Ronald M. Henricksen , Pavel R. Zivny
发明人： Maria Agoston , Ronald M. Henricksen , Pavel R. Zivny
IPC分类号： G06F19/00 , G01R13/02
CPC分类号： G01R31/31709 , H04L1/205
摘要： A digitizing instrument is used for modifying pattern data and jitter and noise components of a communication signal. In a typical implementation, the midpoints of a rising edge slope and horizontal portion of the communication signal are determined and multiple digital data records are acquired at the midpoints. The data sample records are transformed to frequency components and the random jitter and noise, and periodic jitter and noise components are determined. A correlated pattern data and the jitter and noise components are matrix elements in a simulated signal channel having communication system elements. Each correlated pattern data and jitter and noise component may be modified for each of the communication system element. The selectively modified correlated pattern data and jitter and noise components are combined to produce a modified communication signal that is displayed as a numeric table, eye diagram or bit error rate presentation.
摘要翻译：数字化仪器用于修改通信信号的模式数据和抖动和噪声分量。在典型的实现中，确定通信信号的上升沿和水平部分的中点，并在中点获取多个数字数据记录。将数据采样记录转换为频率分量，并确定随机抖动和噪声，并确定周期性抖动和噪声分量。相关图案数据和抖动和噪声分量是具有通信系统元件的模拟信号通道中的矩阵元素。可以为每个通信系统元件修改每个相关图案数据和抖动和噪声分量。选择性地修改的相关图案数据和抖动和噪声分量被组合以产生被显示为数字表，眼图或误码率显示的修改的通信信号。

5. 发明授权

US09130751B2 Methods and systems for analyzing decomposed uncorrelated signal impairments 有权
标题翻译：分析不相关信号损伤的方法和系统
公开(公告)号：US09130751B2
公开(公告)日：2015-09-08
申请号：US13337052
申请日：2011-12-24
申请人： Pavel R. Zivny , Maria Agoston , Kan Tan
发明人： Pavel R. Zivny , Maria Agoston , Kan Tan
IPC分类号： G06F17/10 , H04L1/20
CPC分类号： H04L43/087 , H04L1/205 , H04L43/045
摘要： Method and systems are described for estimating signal impairments, in particular jitter that includes uncorrelated, non-periodic signal impairments. One system may take the form of an oscilloscope. The estimates may take the form of a probability density function (PDF) for uncorrelated signal impairments that has been modified to replace low probability regions with a known approximation and an extrapolation of the known approximation.
摘要翻译：描述了用于估计信号损伤的方法和系统，特别是包括不相关的非周期信号损伤的抖动。一个系统可能采用示波器的形式。估计可以采用未相关信号损伤的概率密度函数（PDF）的形式，其已经被修改以用已知近似的已知近似和外推来代替低概率区域。

6. 发明授权

US08332172B2 System for independently modifying jitter and noise components in a signal digitizing instrument 有权
标题翻译：用于独立修改信号数字化仪器中的抖动和噪声分量的系统
公开(公告)号：US08332172B2
公开(公告)日：2012-12-11
申请号：US13333970
申请日：2011-12-21
申请人： Maria Agoston , Ronald M. Henricksen , Pavel R. Zivny
发明人： Maria Agoston , Ronald M. Henricksen , Pavel R. Zivny
IPC分类号： G01R13/00 , H04B3/46
CPC分类号： G01R31/31709 , H04L1/205
摘要： A digitizing instrument is used for modifying pattern data and jitter and noise components of a communication signal. In a typical implementation, the midpoints of a rising edge slope and horizontal portion of the communication signal are determined and multiple digital data records are acquired at the midpoints. The data sample records are transformed to frequency components and the random jitter and noise, and periodic jitter and noise components are determined. A correlated pattern data and the jitter and noise components are matrix elements in a simulated signal channel having communication system elements. Each correlated pattern data and jitter and noise component may be modified for each of the communication system element. The selectively modified correlated pattern data and jitter and noise components are combined to produce a modified communication signal that is displayed as a numeric table, eye diagram or bit error rate presentation.
摘要翻译：数字化仪器用于修改通信信号的模式数据和抖动和噪声分量。在典型的实现中，确定通信信号的上升沿和水平部分的中点，并在中点获取多个数字数据记录。将数据采样记录转换为频率分量，并确定随机抖动和噪声，并确定周期性抖动和噪声分量。相关图案数据和抖动和噪声分量是具有通信系统元件的模拟信号通道中的矩阵元素。可以为每个通信系统元件修改每个相关图案数据和抖动和噪声分量。选择性地修改的相关图案数据和抖动和噪声分量被组合以产生被显示为数字表，眼图或误码率显示的修改的通信信号。

7. 发明授权

US07216046B2 Method of generating a variable persistence waveform database 失效
标题翻译：生成可变持久波形数据库的方法
公开(公告)号：US07216046B2
公开(公告)日：2007-05-08
申请号：US10392602
申请日：2003-03-19
申请人： Maria Agoston , William Bruce Harrington , Scott L. Halsted
发明人： Maria Agoston , William Bruce Harrington , Scott L. Halsted
IPC分类号： G01R13/00
CPC分类号： G01R13/0227
摘要： A variable persistence waveform database is generated by defining a First-In-First-Out (FIFO) time-ordered queue buffer for maintaining a selected number of waveform records. Digital data samples of a measurement signal are acquired and stored in a plurality of waveform records in the FIFO time-ordered queue buffer. Counts of the digital data samples for the plurality of waveform records are accumulated in a waveform database. Upon filling FIFO time-ordered queue buffer with waveform records, the digital data samples of the oldest acquired waveform record are subtracted from the accumulated counts of the waveform database and deleted from the FIFO time-ordered queue buffer and the digital data samples of the newest acquired waveform record are stored in the FIFO time-ordered queue buffer and added to the accumulated counts in the waveform database.
摘要翻译：通过定义一个先进先出（FIFO）时间排列的队列缓冲器来生成可变持续波形数据库，用于维持选定数量的波形记录。获取测量信号的数字数据样本并存储在FIFO时间排列队列缓冲器中的多个波形记录中。多个波形记录的数字数据样本的计数被累积在波形数据库中。在填充具有波形记录的FIFO时间排序队列缓冲器时，从波形数据库的累计计数中减去最早采集波形记录的数字数据样本，并从FIFO时间排序队列缓冲区中删除，并将最新采集的数据样本获取的波形记录存储在FIFO时间排序队列缓冲器中，并被加到波形数据库中的累加计数。

8. 发明申请

US20050200347A1 Real-time time drift adjustment for a TDR step stimulus 失效
标题翻译： TDR步进刺激的实时时间漂移调整
公开(公告)号：US20050200347A1
公开(公告)日：2005-09-15
申请号：US10852924
申请日：2004-05-24
申请人： Maria Agoston , Kenneth Lester
发明人： Maria Agoston , Kenneth Lester
IPC分类号： G01R13/14
CPC分类号： G01R27/04 , G01R31/2841
摘要： A method for reducing drift in a step stimulus from a sampling system, such as an oscilloscope, is described having an initial step of setting a calibration repetition rate. A step stimulus stabilization calibration is performed to acquire a reference mid-crossing time and the current mid-crossing time. Acquisition cycles of TDR/TDT waveform samples are acquired equal to the repetition rate with the initial strobe delay interval in the sampling system being adjusted by the difference between the reference mid-crossing time and the current mid-crossing time. The step stimulus stabilization calibration is performed again to acquire a new current mid-crossing time and initial strobe delay interval and more acquisition cycles of TDR waveform samples are acquired equal to the repetition rate. The process continues until a stop command is activated for the sampling system.
摘要翻译：描述了一种用于减少来自采样系统（例如示波器）的步进激励中的漂移的方法，其具有设置校准重复率的初始步骤。执行阶跃刺激稳定校准以获取参考中交时间和当前中交时间。获取TDR / TDT波形样本的采集周期等于重复率，采样系统中的初始选通延迟间隔由参考中跨时间与当前中交时间之间的差值进行调整。再次执行阶跃刺激稳定校准以获取新的当前中交时间和初始选通延迟间隔，并获取等于重复率的TDR波形样本的更多采集周期。该过程一直持续到采样系统的停止命令被激活为止。

9. 发明授权

US06998834B2 Real-time time drift adjustment for a TDR step stimulus 失效
标题翻译： TDR步进刺激的实时时间漂移调整
公开(公告)号：US06998834B2
公开(公告)日：2006-02-14
申请号：US10852924
申请日：2004-05-24
申请人： Maria Agoston , Kenneth J. Lester
发明人： Maria Agoston , Kenneth J. Lester
IPC分类号： G01R13/14 , G01R35/00 , G01R13/00
CPC分类号： G01R27/04 , G01R31/2841
摘要： A method for reducing drift in a step stimulus from a sampling system, such as an oscilloscope, is described having an initial step of setting a calibration repetition rate. A step stimulus stabilization calibration is performed to acquire a reference mid-crossing time and the current mid-crossing time. Acquisition cycles of TDR/TDT waveform samples are acquired equal to the repetition rate with the initial strobe delay interval in the sampling system being adjusted by the difference between the reference mid-crossing time and the current mid-crossing time. The step stimulus stabilization calibration is performed again to acquire a new current mid-crossing time and initial strobe delay interval and more acquisition cycles of TDR waveform samples are acquired equal to the repetition rate. The process continues until a stop command is activated for the sampling system.
摘要翻译：描述了一种用于减少来自采样系统（例如示波器）的步进激励中的漂移的方法，其具有设置校准重复率的初始步骤。执行阶跃刺激稳定校准以获取参考中交时间和当前中交时间。获取TDR / TDT波形样本的采集周期等于重复率，采样系统中的初始选通延迟间隔由参考中跨时间与当前中交时间之间的差值进行调整。再次执行阶跃刺激稳定校准以获取新的当前中交时间和初始选通延迟间隔，并获取等于重复率的TDR波形样本的更多采集周期。该过程一直持续到采样系统的停止命令被激活为止。

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