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21. 发明申请

US20080175590A1 Communication Network with Skew Path Monitoring and Adjustment 有权
标题翻译：具有倾斜路径监测和调整的通信网络
公开(公告)号：US20080175590A1
公开(公告)日：2008-07-24
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： 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。

22. 发明授权

US08111685B2 Communication network with co-routed multi-channel traffic 有权
标题翻译：具有协同路由多通道通信的通信网络
公开(公告)号：US08111685B2
公开(公告)日：2012-02-07
申请号：US11851349
申请日：2007-09-06
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： H04L12/28
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。

23. 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。

24. 发明授权

US08655169B2 Degradation adaptation network 有权
标题翻译：降解适应网络
公开(公告)号：US08655169B2
公开(公告)日：2014-02-18
申请号：US12239896
申请日：2008-09-29
申请人： Drew D. Perkins , David F. Welch
发明人： Drew D. Perkins , David F. Welch
IPC分类号： H04B17/00
CPC分类号： H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0279 , H04L1/0009 , H04L1/0057
摘要： Consistent with the present disclosure, based on system requirements or in response to an increase in optical signal-to-noise level of an optical channel, such as a WDM channel, additional FEC bits are inserted into and replace selected data payload bits in each frame carried by the channel. The replaced data payload bits may then be transmitted in subsequent frames on the same channel. As a result, the transmitted frames have a reduced data payload rate, but a higher coding gain. Alternatively, the replaced data payload bits may be included in frames transmitted on another optical channel. In that case, the frames carried by the two channels typically have the same bit length or number of bits and may thus be compliant with the frame length requirements of G.709, for example. Preferably, the number of coding bits may be changed dynamically to obtain different coding gains.
摘要翻译：与本公开一致，基于系统要求或响应于诸如WDM信道的光信道的光信噪比水平的增加，附加的FEC比特被插入并替换每个帧中的选定数据有效载荷比特由频道携带然后可以在相同信道上的后续帧中发送替换的数据有效载荷比特。结果，所发送的帧具有减少的数据有效载荷速率，但是编码增益更高。或者，替换的数据有效载荷比特可以包括在另一光信道上发送的帧中。在这种情况下，由两个信道携带的帧通常具有相同的比特长度或比特数，并且因此可以符合例如G.709的帧长度要求。优选地，可以动态地改变编码比特的数量以获得不同的编码增益。

25. 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。

26. 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。

27. 发明授权

US08249463B2 Skew compensation across polarized optical channels 有权
标题翻译：偏振光通道偏移补偿
公开(公告)号：US08249463B2
公开(公告)日：2012-08-21
申请号：US11952687
申请日：2007-12-07
申请人： Drew D. Perkins
发明人： Drew D. Perkins
IPC分类号： H04B10/00
CPC分类号： H04B10/676 , H04B10/5053 , H04B10/5057 , H04B10/532 , H04B10/697
摘要： Embodiments of the present invention provide systems, devices and methods for managing skew within a polarized multi-channel optical transport system. In a DP-QPSK system, skew between polarized channels is compensated within the transport system by adding latency to at least one of the polarized channels. The amount of added latency may depend on various factors including the skew tolerance of the transport system and the amount of skew across the channels without compensation. This latency may be added optically or electrically, and at various locations on a channel signal path within a transport node, such as a terminal transmitter or receiver. Additionally, various embodiments of the invention provide for novel methods of inserting frame alignment bit sequences within the transport frame overhead so that alignment and skew compensation may be more efficiently and accurately performed at the transport receiver.
摘要翻译：本发明的实施例提供了一种用于管理偏振多通道光传输系统内的偏斜的系统，装置和方法。在DP-QPSK系统中，通过向至少一个极化信道增加等待时间，在传输系统内补偿极化信道之间的偏斜。增加的等待时间的数量可能取决于各种因素，包括传输系统的偏斜容限和跨越通道的偏移量，无需补偿。这种延迟可以光传输或电气地以及传输节点内诸如终端发射机或接收机之间的信道信号路径上的各个位置。此外，本发明的各种实施例提供了在传输帧开销内插入帧对准比特序列的新颖方法，使得可以在传输接收机处更有效和更准确地执行对准和偏斜补偿。

28. 发明授权

US07684399B2 Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same 有权
标题翻译：光传输网络与异步映射和解映射以及数字包装框架相同
公开(公告)号：US07684399B2
公开(公告)日：2010-03-23
申请号：US11876727
申请日：2007-10-22
申请人： Drew D. Perkins , Ting-Kuang Chiang , Edward E. Sprague , Daniel P. Murphy
发明人： Drew D. Perkins , Ting-Kuang Chiang , Edward E. Sprague , Daniel P. Murphy
IPC分类号： H04L12/28
CPC分类号： H04L1/0057 , H04J3/0691 , H04J3/07 , H04J3/1611 , H04J3/1652 , H04J2203/0085
摘要： An optical transmission network is inherently asynchronous due to the utilization of a variable overhead ratio (V-OHR). The network architecture makes extensive use of OEO regeneration, i.e., deals with any electronic reconditioning to correct for transmission impairments, such as, for example, FEC encoding, decoding and re-encoding, signal reshaping, retiming as well as signal regeneration. The optical transmission network includes a plesiochronous clocking system with intermediate nodes designed to operate asynchronously with a single local frequency clock without complicated network synchronization schemes employing high cost clocking devices such as phase locked loop (PLL) control with crystal oscillators and other expensive system components. The asynchronous network operation provides for asynchronous remapping or remapping of any client signal utilizing any type of transmission protocol where the line side rate or frequency is always the same frequency for the payload signal and the local frequency at an intermediate node is set to a local reference clock in accordance with the payload type and its overhead ratio, i.e., the overhead ratio is varied to meet the desired difference between the line rate or frequency and the desired client signal payload rate or frequency for the particular client signal payload type.
摘要翻译：由于使用可变开销比（V-OHR），光传输网络固有地是异步的。网络架构广泛使用OEO再生，即处理任何电子修复以校正传输损伤，例如FEC编码，解码和重新编码，信号整形，重新定时以及信号再生。光传输网络包括一个专用时钟系统，其中间节点设计成与单个本地频率时钟异步运行，而无需采用高成本时钟设备（如晶体振荡器和其他昂贵的系统组件的锁相环（PLL））控制）的复杂网络同步方案。异步网络操作提供使用任何类型的传输协议的任何客户端信号的异步重映射或重新映射，其中线路边速率或频率对于有效载荷信号总是相同的频率，并且中间节点处的本地频率被设置为本地参考根据有效载荷类型和其开销比，即，开销比被改变以满足线速率或频率与特定客户端信号有效载荷类型的期望的客户端信号有效载荷速率或频率之间的期望差。

29. 发明授权

US08274892B2 Universal digital framer architecture for transport of client signals of any client payload and format type 有权
标题翻译：用于传输任何客户端有效载荷和格式类型的客户端信号的通用数字成帧器架构
公开(公告)号：US08274892B2
公开(公告)日：2012-09-25
申请号：US11154455
申请日：2005-06-16
申请人： Ting-Kuang Chiang , Drew D. Perkins , Edward E. Sprague , Daniel P. Murphy
发明人： Ting-Kuang Chiang , Drew D. Perkins , Edward E. Sprague , Daniel P. Murphy
IPC分类号： H04L12/26
CPC分类号： H04J3/1652 , H04J3/08 , H04J3/14
摘要： A transmission network includes network elements which accept client signals to be transported over a transmission network, particularly an optical transmission network, each of the client signals having one of a plurality of payload rates. The client signals are digitally mapped into first transport frames and, subsequently, digitally mapped into second transport frames for transport across the network infrastructure. The second transport frames having a universal frame rate throughout the transmission network infrastructure supporting a client signal of any frequency, whether the client signal includes a standard client payload or a proprietary client payload.
摘要翻译：传输网络包括接收客户信号通过传输网络，特别是光传输网络传输的网络元件，每个客户端信号具有多个有效载荷率中的一个。客户端信号被数字地映射到第一传输帧中，并且随后被数字地映射到第二传输帧中以便跨网络基础设施进行传输。第二传输帧具有在支持任何频率的客户端信号的整个传输网络基础设施中的通用帧速率，无论客户端信号是否包括标准客户端有效载荷或专有客户机有效载荷。

30. 发明授权

US09729946B2 High-capacity switch 有权
公开(公告)号：US09729946B2
公开(公告)日：2017-08-08
申请号：US12418283
申请日：2009-04-03
申请人： Drew D. Perkins , Ting-Kuang Chiang , Curtis Villamizar
发明人： Drew D. Perkins , Ting-Kuang Chiang , Curtis Villamizar
IPC分类号： H04J14/00 , H04Q11/00 , H04J14/02
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0221 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0032
摘要： Consistent with the present disclosure, an optical switch is provided that switches multiple wavelength division multiplexed (WDM) optical signals. Each of the WDM signals includes optical signals having the same wavelengths. The WDM signals are supplied to optical splitters, which supply power split portions of the WDM signals to corresponding optical gates. Groups of the optical gates are associated with a corresponding switching block, which may include a cyclical arrayed waveguide grating (AWG), and the optical gates within each group are controlled so that one gate passes a received WDM signal portion while the remaining optical gates in the group are in a blocking configuration. As a result, the WDM portion received by the non-blocking gate is demultiplexed in the switching block and each of the wavelength components that constitute the selected WDM portion are supplied to corresponding outputs within the switching block. In a later time interval, a different optical gate may be rendered non-blocking so that a different WDM signal portion, supplied from a different optical splitter and carrying different information over the same wavelengths, may be input to the switching block. Thus, by controlling the optical gates, different WDM signal portions may be switched to, and thus demultiplexed by, a particular switching block. In addition, portions of the same WDM signal may be selectively supplied to different AWGs by appropriately control of the optical gates.

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