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1. 发明授权

US08705402B2 Clocking of client signals output from an egress node in a network 有权
标题翻译：从网络中的出口节点输出的客户端信号的时钟
公开(公告)号：US08705402B2
公开(公告)日：2014-04-22
申请号：US12647342
申请日：2009-12-24
申请人： Tulasi Veguru , Gopal Rao , Prasad Paranjape , Ting-Kuang Chiang , Konstantin Saunichev
发明人： Tulasi Veguru , Gopal Rao , Prasad Paranjape , Ting-Kuang Chiang , Konstantin Saunichev
IPC分类号： H04J3/07 , H04L12/50 , G06F15/173
CPC分类号： H04L47/22 , H04L47/365
摘要： Consistent with the present disclosure, client data, which may include multiplexed data sub-streams, is supplied to an ingress node of a network. Each sub-stream typically has a corresponding data rate, i.e., an original data rate, prior to multiplexing. The client data is encapsulated in a plurality of successive frames that are output from the ingress node and propagate, typically through one or more intermediate nodes, to an egress node. At the egress node, data rates associated with the sub-streams included in each frame are determined based on the amount of client data in each frame. The data rates are then averaged over a given number of frames to thereby filter any wander or deviation in the client data rate. Based on the averaged data rate, justification opportunities are added to the client data in each sub-stream, which are then multiplexed into frames that are output from the egress node. By including the justification opportunities, the effective rate of each sub-stream may be set equal to the original data rate when the sub-streams are demultiplexed after being output from the egress node. An advantage of the present disclosure is that the justification opportunities, are not generated based solely on clock signals generated by PLL circuits. As a result, fewer PLL circuits are required, thereby simplifying system design and minimizing power consumption.
摘要翻译：根据本公开，可以将包括多路复用数据子流的客户端数据提供给网络的入口节点。每个子流在复用之前通常具有对应的数据速率，即原始数据速率。客户端数据被封装在从入口节点输出并且通常通过一个或多个中间节点传播到出口节点的多个连续帧中。在出口节点处，基于每帧中的客户端数据的量来确定与包括在每个帧中的子流相关联的数据速率。然后在给定数量的帧上对数据速率进行平均，从而过滤客户端数据速率中的任何漂移或偏差。基于平均数据速率，将每个子流中的客户端数据加入调整机会，然后将其合并到从出口节点输出的帧中。通过包括调整机会，在从出口节点输出之后子流被解复用时，每个子流的有效速率可被设置为等于原始数据速率。本公开的优点在于，调整机会不是仅仅由PLL电路产生的时钟信号产生。因此，需要更少的PLL电路，从而简化系统设计并最大限度地降低功耗。

2. 发明申请

US20110158229A1 CLOCKING OF CLIENT SIGNALS OUTPUT FROM AN EGRESS NODE IN A NETWORK 有权
标题翻译：在网络中从客户端节点输出消息
公开(公告)号：US20110158229A1
公开(公告)日：2011-06-30
申请号：US12647342
申请日：2009-12-24
申请人： Tulasi Veguru , Gopal Rao , Prasad Paranjape , Ting-Kuang Chiang , Konstantin Saunichev
发明人： Tulasi Veguru , Gopal Rao , Prasad Paranjape , Ting-Kuang Chiang , Konstantin Saunichev
IPC分类号： H04L12/50
CPC分类号： H04L47/22 , H04L47/365
摘要： Consistent with the present disclosure, client data, which may include multiplexed data sub-streams, is supplied to an ingress node of a network. Each sub-stream typically has a corresponding data rate, i.e., an original data rate, prior to multiplexing. The client data is encapsulated in a plurality of successive frames that are output from the ingress node and propagate, typically through one or more intermediate nodes, to an egress node. At the egress node, data rates associated with the sub-streams included in each frame are determined based on the amount of client data in each frame. The data rates are then averaged over a given number of frames to thereby filter any wander or deviation in the client data rate. Based on the averaged data rate, justification opportunities are added to the client data in each sub-stream, which are then multiplexed into frames that are output from the egress node. By including the justification opportunities, the effective rate of each sub-stream may be set equal to the original data rate when the sub-streams are demultiplexed after being output from the egress node. An advantage of the present disclosure is that the justification opportunities, are not generated based solely on clock signals generated by PLL circuits. As a result, fewer PLL circuits are required, thereby simplifying system design and minimizing power consumption.
摘要翻译：根据本公开，可以将包括多路复用数据子流的客户端数据提供给网络的入口节点。每个子流在复用之前通常具有对应的数据速率，即原始数据速率。客户端数据被封装在从入口节点输出并且通常通过一个或多个中间节点传播到出口节点的多个连续帧中。在出口节点处，基于每帧中的客户端数据的量来确定与包括在每个帧中的子流相关联的数据速率。然后在给定数量的帧上对数据速率进行平均，从而过滤客户端数据速率中的任何漂移或偏差。基于平均数据速率，将每个子流中的客户端数据加入调整机会，然后将其合并到从出口节点输出的帧中。通过包括调整机会，在从出口节点输出之后子流被解复用时，每个子流的有效速率可被设置为等于原始数据速率。本公开的优点在于，调整机会不是仅仅由PLL电路产生的时钟信号产生。因此，需要更少的PLL电路，从而简化系统设计并最大限度地降低功耗。

3. 发明授权

US08660020B2 Communication network with skew compensation 有权
标题翻译：具有偏斜补偿的通信网络
公开(公告)号：US08660020B2
公开(公告)日：2014-02-25
申请号：US11871934
申请日：2007-10-12
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Stephen G. Grubb , Prasad Paranjape
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Stephen G. Grubb , Prasad Paranjape
IPC分类号： H04J1/16
CPC分类号： H04B10/27 , H04J14/02
摘要： Embodiments of the present invention compensate for skew across a wavelength division multiplexed network. The network is a wavelength division multiplexed optical transport network. The skew compensation can be performed electrically or optically. It can be performed on the transmission side of the network, the receiver side of the network or at any intermediary node on the network.
摘要翻译：本发明的实施例补偿波分复用网络上的偏斜。该网络是波分复用光传输网络。偏斜补偿可以电或光学地执行。它可以在网络的发送侧，网络的接收机侧或网络上的任何中间节点上执行。

4. 发明申请

US20090052892A1 Communication Network with Co-Routed Multi-Channel Traffic 有权
标题翻译：具有协同多通道通信的通信网络
公开(公告)号：US20090052892A1
公开(公告)日：2009-02-26
申请号：US11851349
申请日：2007-09-06
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Spragua , Parthiban Kandappan , Stephen G. Grubb , Prasad Paranjape
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Spragua , Parthiban Kandappan , Stephen G. Grubb , Prasad Paranjape
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04J14/02
摘要： Embodiments of the present invention route a wavelength division multiplexed signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is a wavelength division multiplexed optical transport network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
摘要翻译：本发明的实施例使用至少一些通信路径的偏斜特性来跨越多个通信路径来路由波分复用信号。该网络是波分复用光传输网络。多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素两条路径之间。

5. 发明申请

US20080175586A1 Communication Network with Skew Compensation 有权
标题翻译：具有歪斜补偿的通信网络
公开(公告)号：US20080175586A1
公开(公告)日：2008-07-24
申请号：US11871934
申请日：2007-10-12
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Stephen G. Grubb , Prasad Paranjape
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Stephen G. Grubb , Prasad Paranjape
IPC分类号： H04J14/02
CPC分类号： H04B10/27 , H04J14/02
摘要： Embodiments of the present invention compensate for skew across a wavelength division multiplexed network. The network is a wavelength division multiplexed optical transport network. The skew compensation can be performed electrically or optically. It can be performed on the transmission side of the network, the receiver side of the network or at any intermediary node on the network.
摘要翻译：本发明的实施例补偿波分复用网络上的偏斜。该网络是波分复用光传输网络。偏斜补偿可以电或光学地执行。它可以在网络的发送侧，网络的接收机侧或网络上的任何中间节点上执行。

6. 发明授权

US09231798B2 Channel skew identification and notification 有权
标题翻译：频道偏斜识别和通知
公开(公告)号：US09231798B2
公开(公告)日：2016-01-05
申请号：US11962052
申请日：2007-12-20
申请人： Ting-Kuang Chiang , Prasad Paranjape , Michael D. Jarchi , Mallikarjun Chillal
发明人： Ting-Kuang Chiang , Prasad Paranjape , Michael D. Jarchi , Mallikarjun Chillal
IPC分类号： G11B5/00 , H04L25/14
CPC分类号： H04L25/14
摘要： Embodiments of the present invention analyze a plurality of parallel channels and identify specific channel(s) that have skew outside of an acceptable skew error margin. In certain embodiments, this skew is identified by determining the timing misalignment between a channel under test and a deskew channel. Other channels within the plurality of channels are masked by transmitting a repeating masked bit pattern. This timing misalignment may be measured by comparing a segment within the channel under test to a corresponding segment within the deskew channel and identifying a time differential between the two segments.
摘要翻译：本发明的实施例分析多个并行信道并且识别在可接受的偏移误差容限之外具有偏斜的特定信道。在某些实施例中，通过确定被测信道和歪斜通道之间的定时偏移来识别该偏斜。通过发送重复的屏蔽位模式来掩蔽多个通道内的其它通道。该定时未对准可以通过将被测通道内的段与对照段通信相比较，并且识别两段之间的时间差来测量。

7. 发明授权

US08259703B2 Communication network with skew determination 有权
标题翻译：具有偏差确定的通信网络
公开(公告)号：US08259703B2
公开(公告)日：2012-09-04
申请号：US11856692
申请日：2007-09-17
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Steven G. Grubb , Prasad Paranjape , Biao Lu
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Steven G. Grubb , Prasad Paranjape , Biao Lu
IPC分类号： H04L12/28
CPC分类号： H04J14/02
摘要： Embodiments of the present invention determine skew relative to a plurality of communication paths on a network system. The network is a wavelength division multiplexed optical transport network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
摘要翻译：本发明的实施例确定了相对于网络系统上的多个通信路径的偏斜。该网络是波分复用光传输网络。多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素两条路径之间。

8. 发明授权

US08175113B2 Communication network with node bypassed co-routed multi-channel traffic 有权
标题翻译：具有节点的通信网络绕过共路由的多信道流量
公开(公告)号：US08175113B2
公开(公告)日：2012-05-08
申请号：US12164550
申请日：2008-06-30
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Charles H. Joyner , Edward E. Sprague , Parthiban Kandappan , Stephen Grubb , Prasad Paranjape
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Charles H. Joyner , Edward E. Sprague , Parthiban Kandappan , Stephen Grubb , Prasad Paranjape
IPC分类号： H04J3/22
CPC分类号： H04J14/0241 , H04J3/0629 , H04J14/0257 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0275 , H04J14/0279 , H04J14/0284 , H04L25/14
摘要： Embodiments of the present invention route a wavelength division multiplexed signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is a wavelength division multiplexed optical transport network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
摘要翻译：本发明的实施例使用至少一些通信路径的偏斜特性来跨越多个通信路径来路由波分复用信号。该网络是波分复用光传输网络。多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素两条路径之间。

9. 发明授权

US07751713B2 Communication network with skew path monitoring and adjustment 有权
标题翻译：通信网络具有歪斜路径监控和调整
公开(公告)号：US07751713B2
公开(公告)日：2010-07-06
申请号：US11781912
申请日：2007-07-23
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Charles H. Joyner , Edward E. Sprague , Parthiban Kandappan , Stephen G. Grubb , Biao Lu , Prasad Paranjape
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Charles H. Joyner , Edward E. Sprague , Parthiban Kandappan , Stephen G. Grubb , Biao Lu , Prasad Paranjape
IPC分类号： H04J14/00 , H04J14/02 , H04B10/12 , H04B10/00
CPC分类号： H04J14/02
摘要： Embodiments of the present invention route a WDM signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is an optical transport network, using either circuit or packet based switching, and wavelength division multiplexed wavelengths and/or optical carrier groups (“OCGs”) over a fiber link to another node in the network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
摘要翻译：本发明的实施例使用至少一些通信路径的偏斜特性来跨越多个通信路径来路由WDM信号。该网络是光传输网络，其使用电路或分组交换，以及波分复用波长和/或光载波组（“OCG”），通过光纤链路到网络中的另一个节点。多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素两条路径之间。

10. 发明申请

US20090324220A1 COMMUNICATION NETWORK WITH NODE BYPASSED CO-ROUTED MULTI-CHANNEL TRAFFIC 有权
标题翻译：具有节点旁路多路通信通信的通信网络
公开(公告)号：US20090324220A1
公开(公告)日：2009-12-31
申请号：US12164550
申请日：2008-06-30
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Charles H. Joyner , Edward E. Sprague , Parthiban Kandappan , Stephen Grubb , Prasad Paranjape
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Charles H. Joyner , Edward E. Sprague , Parthiban Kandappan , Stephen Grubb , Prasad Paranjape
IPC分类号： H04J14/00 , H04L12/26
CPC分类号： H04J14/0241 , H04J3/0629 , H04J14/0257 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0275 , H04J14/0279 , H04J14/0284 , H04L25/14
摘要： Embodiments of the present invention route a wavelength division multiplexed signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is a wavelength division multiplexed optical transport network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
摘要翻译：本发明的实施例使用至少一些通信路径的偏斜特性来跨越多个通信路径来路由波分复用信号。该网络是波分复用光传输网络。多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素两条路径之间。

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