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公开(公告)号：US07916653B2
公开(公告)日：2011-03-29
申请号：US11516933
申请日：2006-09-06
CPC分类号： H04L12/66
摘要： In one embodiment, a first audio waveform is produced at a first side of a network connection and then encoded and sent by a first endpoint device to a second endpoint device at a second side of the network connection. A second audio waveform is then detected after being played out by the first endpoint device, the second audio waveform having been produced at the second side of the network connection in response to the second endpoint device playing out the first audio waveform. A round-trip delay is then calculating based on a time period measured from output of the first audio waveform to detection of the second audio waveform. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
摘要翻译： 在一个实施例中，在网络连接的第一侧产生第一音频波形，然后由第一端点设备编码并发送到网络连接的第二侧的第二端点设备。 然后在由第一端点设备播放之后检测第二音频波形，响应于第二端点设备播放第一音频波形，已经在网络连接的第二侧产生了第二音频波形。 然后基于从第一音频波形的输出测量到第二音频波形的检测的时间周期来计算往返延迟。 要强调的是，该摘要被提供以符合要求抽象的规则，允许搜索者或其他读者快速确定技术公开内容的主题。
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2.发明授权Architecture to support a single system image across multiple network access servers 失效架构支持跨多个网络访问服务器的单个系统映像公开(公告)号：US06256305B1
公开(公告)日：2001-07-03
申请号：US09328191
申请日：1999-06-08
申请人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
发明人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
IPC分类号： H04L1202
摘要： The present invention provides a modular architecture for connecting a plurality of telephone lines to a computer network. The invention binds a plurality of network access servers together so that they form a single system image to clients dialing into the plurality of network access servers. The invention operates by providing a tunneling mechanism for communication between the network access servers. The tunneling mechanism facilitates packet re-forwarding so that a call dialed into a physical port in a network access server can be re-forwarded through a logical port in another network access server. This allows a call to be routed through a physical port in a network access server even if no logical port is available in the network access server. Packet re-forwarding also allows multilink connections through physical ports in multiple network access servers to be routed through a single logical port in a network access server. Packet re-forwarding also provides support for spoofing; if the telephone line is torn down during spoofing, the logical port is maintained so that the connection may be reestablished through a physical port in another network access server. Finally, the present invention supports authentication across multiple network access servers using a security server, by allowing the network access servers to share authentication information.
摘要翻译： 本发明提供了一种用于将多条电话线连接到计算机网络的模块化架构。 本发明将多个网络接入服务器绑定在一起，使得它们形成单个系统映像到客户端拨入多个网络接入服务器。 本发明通过提供用于网络访问服务器之间的通信的隧道机制来操作。 隧道机制有助于分组重传，使得拨入网络接入服务器的物理端口的呼叫可以通过另一个网络接入服务器中的逻辑端口重新转发。 这允许通过网络访问服务器中的物理端口路由呼叫，即使网络访问服务器中没有可用的逻辑端口。 分组重传还允许通过多个网络接入服务器中的物理端口的多链路连接通过网络接入服务器中的单个逻辑端口进行路由。 数据包转发还提供欺骗的支持; 如果在欺骗期间电话线被拆除，则维护逻辑端口，使得可以通过另一个网络接入服务器中的物理端口重新建立连接。 最后，本发明通过允许网络接入服务器共享认证信息来支持使用安全服务器的多个网络接入服务器的认证。
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公开(公告)号：US06147987A
公开(公告)日：2000-11-14
申请号：US835758
申请日：1997-04-08
申请人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
发明人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
CPC分类号： H04L12/2856 , H04L12/2859 , H04L63/083 , H04L67/1002 , H04L67/1008 , H04L2212/00 , H04L69/324
摘要： The present invention provides a modular architecture for connecting a plurality of telephone lines to a computer network. The invention binds a plurality of network access servers together so that they form a single system image to clients dialing into the plurality of network access servers. The invention operates by providing a tunneling mechanism for communication between the network access servers. The tunneling mechanism facilitates packet re-forwarding so that a call dialed into a physical port in a network access server can be re-forwarded through a logical port in another network access server. This allows a call to be routed through a physical port in a network access server even if no logical port is available in the network access server. Packet re-forwarding also allows multilink connections through physical ports in multiple network access servers to be routed through a single logical port in a network access server. Packet re-forwarding also provides support for spoofing; if the telephone line is torn down during spoofing, the logical port is maintained so that the connection may be reestablished through a physical port in another network access server. Finally, the present invention supports authentication across multiple network access servers using a security server, by allowing the network access servers to share authentication information.
摘要翻译： 本发明提供了一种用于将多条电话线连接到计算机网络的模块化架构。 本发明将多个网络接入服务器绑定在一起，使得它们形成单个系统映像到客户端拨入多个网络接入服务器。 本发明通过提供用于网络访问服务器之间的通信的隧道机制来操作。 隧道机制有助于分组重传，使得拨入网络接入服务器的物理端口的呼叫可以通过另一个网络接入服务器中的逻辑端口重新转发。 这允许通过网络访问服务器中的物理端口路由呼叫，即使网络访问服务器中没有可用的逻辑端口。 分组重传还允许通过多个网络接入服务器中的物理端口的多链路连接通过网络接入服务器中的单个逻辑端口进行路由。 数据包转发还提供欺骗的支持; 如果在欺骗期间电话线被拆除，则维护逻辑端口，使得可以通过另一个网络接入服务器中的物理端口重新建立连接。 最后，本发明通过允许网络接入服务器共享认证信息来支持使用安全服务器的多个网络接入服务器的认证。
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公开(公告)号：US20080056154A1
公开(公告)日：2008-03-06
申请号：US11516933
申请日：2006-09-06
CPC分类号： H04L12/66
摘要： In one embodiment, a first audio waveform is produced at a first side of a network connection and then encoded and sent by a first endpoint device to a second endpoint device at a second side of the network connection. A second audio waveform is then detected after being played out by the first endpoint device, the second audio waveform having been produced at the second side of the network connection in response to the second endpoint device playing out the first audio waveform. A round-trip delay is then calculating based on a time period measured from output of the first audio waveform to detection of the second audio waveform. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
摘要翻译： 在一个实施例中，在网络连接的第一侧产生第一音频波形，然后由第一端点设备编码并发送到网络连接的第二侧的第二端点设备。 然后在由第一端点设备播放之后检测第二音频波形，响应于第二端点设备播放第一音频波形，已经在网络连接的第二侧产生了第二音频波形。 然后基于从第一音频波形的输出测量到第二音频波形的检测的时间周期来计算往返延迟。 要强调的是，该摘要被提供以符合要求抽象的规则，允许搜索者或其他读者快速确定技术公开内容的主题。
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公开(公告)号：US6011910A
公开(公告)日：2000-01-04
申请号：US833663
申请日：1997-04-08
申请人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
发明人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
CPC分类号： H04L63/08 , H04L12/2856 , H04L12/2874
摘要： The present invention provides a modular architecture for connecting a plurality of telephone lines to a computer network. The invention binds a plurality of network access servers together so that they form a single system image to clients dialing into the plurality of network access servers. The invention operates by providing a tunneling mechanism for communication between the network access servers. The tunneling mechanism facilitates packet re-forwarding so that a call dialed into a physical port in a network access server can be re-forwarded through a logical port in another network access server. This allows a call to be routed through a physical port in a network access server even if no logical port is available in the network access server. Packet re-forwarding also allows multilink connections through physical ports in multiple network access servers to be routed through a single logical port in a network access server. Packet re-forwarding also provides support for spoofing; if the telephone line is torn down during spoofing, the logical port is maintained so that the connection may be reestablished through a physical port in another network access server. Finally, the present invention supports authentication across multiple network access servers using a security server, by allowing the network access servers to share authentication information.
摘要翻译： 本发明提供了一种用于将多条电话线连接到计算机网络的模块化架构。 本发明将多个网络接入服务器绑定在一起，使得它们形成单个系统映像到客户端拨入多个网络接入服务器。 本发明通过提供用于网络访问服务器之间的通信的隧道机制来操作。 隧道机制有助于分组重传，使得拨入网络接入服务器的物理端口的呼叫可以通过另一个网络接入服务器中的逻辑端口重新转发。 这允许通过网络访问服务器中的物理端口路由呼叫，即使网络访问服务器中没有可用的逻辑端口。 分组重传还允许通过多个网络接入服务器中的物理端口的多链路连接通过网络接入服务器中的单个逻辑端口进行路由。 数据包转发还提供欺骗的支持; 如果在欺骗期间电话线被拆除，则维护逻辑端口，使得可以通过另一个网络接入服务器中的物理端口重新建立连接。 最后，本发明通过允许网络接入服务器共享认证信息来支持使用安全服务器的多个网络接入服务器的认证。
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6.发明授权
公开(公告)号：US5805827A
公开(公告)日：1998-09-08
申请号：US610706
申请日：1996-03-04
申请人： Wing Cheong Chau , Dar-Ren Leu
发明人： Wing Cheong Chau , Dar-Ren Leu
CPC分类号： H04Q11/0435
摘要： A communication server includes one or more ISDN ports or other wide area network ports, one or more local area network ports, a plurality of processors and data channel resources which execute a process for distributing data channel signal processing among the plurality of processors. The process includes maintaining resource information for a set of processors on the communication server, the resource information concerning levels of utilization of processors in said set of processors; detecting, in processors corresponding to particular input/output ports of the server, activity in data channels through input/output ports managed by the processors; sending requests in response to the detected activity from the corresponding processors to a managing processor on the communication server, said requests identifying compression or decompression services needed for the detected activity; selecting in the managing processor in response to the resource information and the request, service processors from the set of processors in the server to provide compression or decompression services identified in the request for the detected activity on the data channel; and routing the detected activity on the data channels to the selected service processors.
摘要翻译： 通信服务器包括一个或多个ISDN端口或其他广域网端口，一个或多个局域网端口，多个处理器和数据信道资源，其执行在多个处理器之间分配数据信道信号处理的处理。 所述过程包括维护所述通信服务器上的一组处理器的资源信息，所述资源信息涉及所述一组处理器中的处理器的使用级别; 在对应于服务器的特定输入/输出端口的处理器中检测通过由处理器管理的输入/输出端口在数据通道中的活动; 响应于来自相应处理器的检测到的活动向所述通信服务器上的管理处理器发送请求，所述请求识别所检测到的活动所需的压缩或解压缩服务; 响应于所述资源信息和所述请求，在所述管理处理器中选择来自所述服务器中的所述一组处理器的服务处理器，以提供在所述数据信道上检测到的活动请求中标识的压缩或解压缩服务; 以及将检测到的活动在数据信道上路由到所选择的服务处理器。
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7.发明授权Integrated architecture to support a single system image across multiple network access servers 失效集成架构支持跨多个网络访问服务器的单个系统映像公开(公告)号：US06278705B1
公开(公告)日：2001-08-21
申请号：US08835532
申请日：1997-04-08
申请人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
发明人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
IPC分类号： H04L1266
CPC分类号： H04L12/2874 , H04L12/2856 , H04L12/4633 , H04L69/324
摘要： The present invention provides a modular architecture for connecting a plurality of telephone lines to a computer network. The invention binds a plurality of network access servers together so that they form a single system image to clients dialing into the plurality of network access servers. The invention operates by providing a tunneling mechanism for communication between the network access servers. The tunneling mechanism facilitates packet re-forwarding so that a call dialed into a physical port in a network access server can be re-forwarded through a logical port in another network access server. This allows a call to be routed through a physical port in a network access server even if no logical port is available in the network access server. Packet re-forwarding also allows multilink connections through physical ports in multiple network access servers to be routed through a single logical port in a network access server. Packet re-forwarding also provides support for spoofing; if the telephone line is torn down during spoofing, the logical port is maintained so that the connection may be reestablished through a physical port in another network access server. Finally, the present invention supports authentication across multiple network access servers using a security server, by allowing the network access servers to share authentication information.
摘要翻译： 本发明提供了一种用于将多条电话线连接到计算机网络的模块化架构。 本发明将多个网络接入服务器绑定在一起，使得它们形成单个系统映像到客户端拨入多个网络接入服务器。 本发明通过提供用于网络访问服务器之间的通信的隧道机制来操作。 隧道机制有助于分组重传，使得拨入网络接入服务器的物理端口的呼叫可以通过另一个网络接入服务器中的逻辑端口重新转发。 这允许通过网络访问服务器中的物理端口路由呼叫，即使网络访问服务器中没有可用的逻辑端口。 分组重传还允许通过多个网络接入服务器中的物理端口的多链路连接通过网络接入服务器中的单个逻辑端口进行路由。 数据包转发还提供欺骗的支持; 如果在欺骗期间电话线被拆除，则维护逻辑端口，使得可以通过另一个网络接入服务器中的物理端口重新建立连接。 最后，本发明通过允许网络接入服务器共享认证信息来支持使用安全服务器的多个网络接入服务器的认证。
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8.发明授权公开(公告)号：US06233232B1
公开(公告)日：2001-05-15
申请号：US08835534
申请日：1997-04-08
申请人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
发明人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
IPC分类号： H04L1266
CPC分类号： H04L29/06 , H04L12/4633 , H04L12/66 , H04L45/00 , H04L45/245 , H04L47/10 , H04L47/125 , H04L63/083 , H04L69/14
摘要： The present invention provides a modular architecture for connecting a plurality of telephone lines to a computer network. The invention binds a plurality of network access servers together so that they form a single system image to clients dialing into the plurality of network access servers. The invention operates by providing a tunneling mechanism for communication between the network access servers. The tunneling mechanism facilitates packet re-forwarding so that a call dialed into a physical port in a network access server can be re-forwarded through a logical port in another network access server. This allows a call to be routed through a physical port in a network access server even if no logical port is available in the network access server. Packet re-forwarding also allows multilink connections through physical ports in multiple network access servers to be routed through a single logical port in a network access server. Packet re-forwarding also provides support for spoofing; if the telephone line is torn down during spoofing, the logical port is maintained so that the connection may be reestablished through a physical port in another network access server. Finally, the present invention supports authentication across multiple network access servers using a security server, by allowing the network access servers to share authentication information.
摘要翻译： 本发明提供了一种用于将多条电话线连接到计算机网络的模块化架构。 本发明将多个网络接入服务器绑定在一起，使得它们形成单个系统映像到客户端拨入多个网络接入服务器。 本发明通过提供用于网络访问服务器之间的通信的隧道机制来操作。 隧道机制有助于分组重传，使得拨入网络接入服务器的物理端口的呼叫可以通过另一个网络接入服务器中的逻辑端口重新转发。 这允许通过网络访问服务器中的物理端口路由呼叫，即使网络访问服务器中没有可用的逻辑端口。 分组重传还允许通过多个网络接入服务器中的物理端口的多链路连接通过网络接入服务器中的单个逻辑端口进行路由。 数据包转发还提供欺骗的支持; 如果在欺骗期间电话线被拆除，则维护逻辑端口，使得可以通过另一个网络接入服务器中的物理端口重新建立连接。 最后，本发明通过允许网络接入服务器共享认证信息来支持使用安全服务器的多个网络接入服务器的认证。
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9.发明授权Architecture to support a single system image across multiple network access servers 失效架构支持跨多个网络访问服务器的单个系统映像
公开(公告)号：US6026085A
公开(公告)日：2000-02-15
申请号：US835536
申请日：1997-04-08
申请人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
发明人： Wing Cheong Chau , Darren Leu , Tze-jian Liu , Chandy Nilakantan , Jeffrey Kaiping Pao , Tsyr-Shya Joe Sun , Wayming Daniel Tai , Xiaohu Wang
摘要： The present invention provides a modular architecture for connecting a plurality of telephone lines to a computer network. The invention binds a plurality of network access servers together so that they form a single system image to clients dialing into the plurality of network access servers. The invention operates by providing a tunneling mechanism for communication between the network access servers. The tunneling mechanism facilitates packet re-forwarding so that a call dialed into a physical port in a network access server can be re-forwarded through a logical port in another network access server. This allows a call to be routed through a physical port in a network access server even if no logical port is available in the network access server. Packet re-forwarding also allows multilink connections through physical ports in multiple network access servers to be routed through a single logical port in a network access server. Packet re-forwarding also provides support for spoofing; if the telephone line is torn down during spoofing, the logical port is maintained so that the connection may be reestablished through a physical port in another network access server. Finally, the present invention supports authentication across multiple network access servers using a security server, by allowing the network access servers to share authentication information.
摘要翻译： 本发明提供了一种用于将多条电话线连接到计算机网络的模块化架构。 本发明将多个网络接入服务器绑定在一起，使得它们形成单个系统映像到客户端拨入多个网络接入服务器。 本发明通过提供用于网络访问服务器之间的通信的隧道机制来操作。 隧道机制有助于分组重传，使得拨入网络接入服务器的物理端口的呼叫可以通过另一个网络接入服务器中的逻辑端口重新转发。 这允许通过网络访问服务器中的物理端口路由呼叫，即使网络访问服务器中没有可用的逻辑端口。 分组重传还允许通过多个网络接入服务器中的物理端口的多链路连接通过网络接入服务器中的单个逻辑端口进行路由。 数据包转发还提供欺骗的支持; 如果在欺骗期间电话线被拆除，则维护逻辑端口，使得可以通过另一个网络接入服务器中的物理端口重新建立连接。 最后，本发明通过允许网络接入服务器共享认证信息来支持使用安全服务器的多个网络接入服务器的认证。
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