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1. 发明申请

US20050058076A1 Packet network monitoring device 有权
标题翻译：分组网监控设备
公开(公告)号：US20050058076A1
公开(公告)日：2005-03-17
申请号：US10797984
申请日：2004-03-11
申请人： William Richardson , Leslie Swanson , Ashwin Kovummal , Sandeepan Mukherjee
发明人： William Richardson , Leslie Swanson , Ashwin Kovummal , Sandeepan Mukherjee
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L43/022 , H04L43/0847 , H04L43/12 , H04L43/16 , H04L43/18
摘要： A network diagnostic device is disclosed that digitally samples the voltages on the cabling of the network, but does so at a much higher rate and with greater resolution then is required to minimally detect digital transmissions on the cabling. This sampling provides information on the analog characteristics of digital, noise, and interference signals on the network. Thus, network problems can be precisely diagnosed. The device includes a fast digitizer with a long memory and a system processor that statistically analyzes the signal events captured by the digitizer. The invention is also capable of performing time domain reflectometry (TDR) analysis of a functioning network. This is accomplished by placing a TDR signal on the network surrounded by a transmission that the network devices will interpret as a broadcast diagnostic packet. This will cause the network nodes to ignore the transmission. The digitizer, however, is able to detect the networks response to the TDR signal. Methods for identifying unknown network sources and Manchester decoding are also disclosed.
摘要翻译：公开了一种网络诊断装置，其数字地采样网络布线上的电压，但以更高的速率进行这样的测试，并且需要更高的分辨率来最小化地检测电缆上的数字传输。该采样提供有关网络上数字，噪声和干扰信号的模拟特性的信息。因此，可以精确诊断网络问题。该设备包括具有长存储器的快速数字转换器和统计分析数字转换器捕获的信号事件的系统处理器。本发明还能够对功能性网络进行时域反射（TDR）分析。这是通过将TDR信号放置在由网络设备围绕的网络上来实现的，网络设备将被解释为广播诊断分组。这将导致网络节点忽略传输。然而，数字化仪能够检测网络对TDR信号的响应。还公开了用于识别未知网络源和曼彻斯特解码的方法。

2. 发明申请

US20080225745A1 PACKET NETWORK MONITORING DEVICE 有权
标题翻译：分组网络监控设备
公开(公告)号：US20080225745A1
公开(公告)日：2008-09-18
申请号：US12050232
申请日：2008-03-18
申请人： WILLIAM M. RICHARDSON , LESLIE H. SWANSON , ASHWIN KOVUMMAL , SANDEEPAN MUKHERJEE
发明人： WILLIAM M. RICHARDSON , LESLIE H. SWANSON , ASHWIN KOVUMMAL , SANDEEPAN MUKHERJEE
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L43/022 , H04L43/0847 , H04L43/12 , H04L43/16 , H04L43/18
摘要： A network analysis device for a digital communication network includes a digitizer to digitize a waveform representing a signal to produce a plurality of digital samples indicative of the waveform. The signal is communicated on the network. The network analysis device also includes a processor operable to analyze the digital samples to identify signal events, determine analog characteristics of the signal events, and decode the signal events, which are digital communications between network devices, based on the data, to selectively predict a failure mode.
摘要翻译：用于数字通信网络的网络分析装置包括数字化器，用于数字化表示信号的波形以产生指示波形的多个数字样本。信号在网络上通信。网络分析装置还包括处理器，其可操作以分析数字样本以识别信号事件，确定信号事件的模拟特性，以及基于该数据对作为网络设备之间的数字通信的信号事件进行解码，以选择性地预测故障模式。

3. 发明授权

US08811186B2 Packet network monitoring device 有权
标题翻译：分组网监控设备
公开(公告)号：US08811186B2
公开(公告)日：2014-08-19
申请号：US12050232
申请日：2008-03-18
申请人： William Richardson , Leslie Swanson , Ashwin Kovummall , Sandeepan Mukherjee
发明人： William Richardson , Leslie Swanson , Ashwin Kovummall , Sandeepan Mukherjee
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L43/022 , H04L43/0847 , H04L43/12 , H04L43/16 , H04L43/18
摘要： A network analysis device for a digital communication network includes a digitizer to digitize a waveform representing a signal to produce a plurality of digital samples indicative of the waveform. The signal is communicated on the network. The network analysis device also includes a processor operable to analyze the digital samples to identify signal events, determine analog characteristics of the signal events, and decode the signal events, which are digital communications between network devices, based on the data, to selectively predict a failure mode.
摘要翻译：用于数字通信网络的网络分析装置包括数字化器，用于数字化表示信号的波形以产生指示波形的多个数字样本。信号在网络上通信。网络分析装置还包括处理器，其可操作以分析数字样本以识别信号事件，确定信号事件的模拟特性，以及基于该数据对作为网络设备之间的数字通信的信号事件进行解码，以选择性地预测故障模式。

4. 发明授权

US07362714B2 Packet network monitoring device 有权
标题翻译：分组网监控设备
公开(公告)号：US07362714B2
公开(公告)日：2008-04-22
申请号：US10797984
申请日：2004-03-11
申请人： William M. Richardson , Leslie H. Swanson , Ashwin Kovummal , Sandeepan Mukherjee
发明人： William M. Richardson , Leslie H. Swanson , Ashwin Kovummal , Sandeepan Mukherjee
IPC分类号： G01R31/28
CPC分类号： H04L43/50 , H04L43/022 , H04L43/0847 , H04L43/12 , H04L43/16 , H04L43/18
摘要： A network diagnostic device is disclosed that digitally samples the voltages on the cabling of the network, but does so at a much higher rate and with greater resolution then is required to minimally detect digital transmissions on the cabling. This sampling provides information on the analog characteristics of digital, noise, and interference signals on the network. Thus, network problems can be precisely diagnosed. The device includes a fast digitizer with a long memory and a system processor that statistically analyzes the signal events captured by the digitizer. The invention is also capable of performing time domain reflectometry (TDR) analysis of a functioning network. This is accomplished by placing a TDR signal on the network surrounded by a transmission that the network devices will interpret as a broadcast diagnostic packet. This will cause the network nodes to ignore the transmission. The digitizer, however, is able to detect the networks response to the TDR signal. Methods for identifying unknown network sources and Manchester decoding are also disclosed.
摘要翻译：公开了一种网络诊断装置，其数字地采样网络布线上的电压，但以更高的速率进行这样的测试，并且需要更高的分辨率来最小化地检测电缆上的数字传输。该采样提供有关网络上数字，噪声和干扰信号的模拟特性的信息。因此，可以精确诊断网络问题。该设备包括具有长存储器的快速数字转换器和统计分析数字转换器捕获的信号事件的系统处理器。本发明还能够对功能性网络进行时域反射（TDR）分析。这是通过将TDR信号放置在由网络设备围绕的网络上来实现的，网络设备将被解释为广播诊断分组。这将导致网络节点忽略传输。然而，数字化仪能够检测网络对TDR信号的响应。还公开了用于识别未知网络源和曼彻斯特解码的方法。

5. 发明授权

US06795402B1 Packet network monitoring device 有权
标题翻译：分组网监控设备
公开(公告)号：US06795402B1
公开(公告)日：2004-09-21
申请号：US09429458
申请日：1999-10-28
申请人： William M. Richardson , Leslie H. Swanson , Ashwin Kovummal , Sandeepan Mukherjee
发明人： William M. Richardson , Leslie H. Swanson , Ashwin Kovummal , Sandeepan Mukherjee
IPC分类号： H04L1226
CPC分类号： H04L43/50 , H04L43/022 , H04L43/0847 , H04L43/12 , H04L43/16 , H04L43/18
摘要： A network diagnostic device is disclosed that digitally samples the voltages on the cabling of the network, but does so at a much higher rate and with greater resolution then is required to minimally detect digital transmissions on the cabling. This sampling provides information on the analog characteristics of digital, noise, and interference signals on the network. Thus, network problems can be precisely diagnosed. The device includes a fast digitizer with a long memory and a system processor that statistically analyzes the signal events captured by the digitizer. The invention is also capable of performing time domain reflectometry (TDR) analysis of a functioning network. This is accomplished by placing a TDR signal on the network surrounded by a transmission that the network devices will interpret as a broadcast diagnostic packet. This will cause the network nodes to ignore the transmission. The digitizer, however, is able to detect the networks response to the TDR signal. Methods for identifying unknown network sources and Manchester decoding are also disclosed.
摘要翻译：公开了一种网络诊断装置，其数字地采样网络布线上的电压，但以更高的速率进行这样的测试，并且需要更高的分辨率来最小化地检测电缆上的数字传输。该采样提供有关网络上数字，噪声和干扰信号的模拟特性的信息。因此，可以精确诊断网络问题。该设备包括具有长存储器的快速数字转换器和统计分析数字转换器捕获的信号事件的系统处理器。本发明还能够对功能性网络进行时域反射（TDR）分析。这是通过将TDR信号放置在由网络设备围绕的网络上来实现的，网络设备将被解释为广播诊断分组。这将导致网络节点忽略传输。然而，数字化仪能够检测网络对TDR信号的响应。还公开了用于识别未知网络源和曼彻斯特解码的方法。

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