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    Modular adaptation and configuration of a nework node architecture
    22.
    发明申请
    Modular adaptation and configuration of a nework node architecture 有权
    一种nework节点架构的模块化适配和配置

    公开(公告)号：US20070009262A1

    公开(公告)日：2007-01-11

    申请号：US11479778

    申请日：2006-06-30

    申请人： Drew Perkins ,  Ting-Kuang Chiang ,  Marco Sosa ,  Mark Yin ,  Edward Sprague

    发明人： Drew Perkins ,  Ting-Kuang Chiang ,  Marco Sosa ,  Mark Yin ,  Edward Sprague

    IPC分类号： H04B10/20

    CPC分类号： H04J14/0201 ,  H04J14/0219 ,  H04L49/40 ,  H04L49/405 ,  H04L49/45

    摘要： The present invention provides a system, apparatus and method for modularly adapting a network node architecture to function in one of a plurality of potential node types. The architecture includes a configurable switching element, integrated optics, and a plurality of modules that allow a “type” of node to be adapted and configured within the base architecture. The module interfaces may be optical or electrical and be used to construct various different types of nodes including regenerators, add/drop nodes, terminal nodes, and multi-way nodes using the same base architecture.

    摘要翻译： 本发明提供了一种用于模块化地适应网络节点体系结构以在多个潜在节点类型之一起作用的系统，装置和方法。 该架构包括可配置的开关元件，集成光学元件和允许在基础架构内适配和配置节点“类型”的多个模块。 模块接口可以是光学的或电的，并且可以用于构造各种不同类型的节点，包括再生器，添加/分出节点，终端节点和使用相同基础架构的多路节点。

    Clocking of client signals output from an egress node in a network
    26.
    发明授权
    Clocking of client signals output from an egress node in a network 有权
    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。

    PROVIDING ACCESS TO CLIENT OVERHEAD WHILE TRANSPARENTLY TRANSMITTING THE CLIENT SIGNAL
    27.
    发明申请
    PROVIDING ACCESS TO CLIENT OVERHEAD WHILE TRANSPARENTLY TRANSMITTING THE CLIENT SIGNAL 有权
    在客户端发送信息时提供客户端访问权限

    公开(公告)号：US20110004700A1

    公开(公告)日：2011-01-06

    申请号：US12496246

    申请日：2009-07-01

    申请人： Edward E. Sprague ,  Radhakrishna Valiveti ,  Jan Bialkowski ,  Ting-Kuang Chiang ,  Biao Lu ,  Rajan Rao ,  Parthiban Kandappan

    发明人： Edward E. Sprague ,  Radhakrishna Valiveti ,  Jan Bialkowski ,  Ting-Kuang Chiang ,  Biao Lu ,  Rajan Rao ,  Parthiban Kandappan

    IPC分类号： G06F15/16

    CPC分类号： H04J3/1652 ,  H04J2203/0046 ,  H04J2203/0057

    摘要： A method includes receiving client data; extracting overhead data from the client data; mapping the client data into one or more frames, where each of the one or more frames has a frame payload section and a frame overhead section, where the client data is mapped into the frame payload section of the one or more frames; inserting the overhead data into the frame overhead section of the one or more frames; transporting the one or more frames across a network; extracting the overhead data from the frame overhead section of the one or more frames; recovering the client data from the one or more frames; inserting the extracted overhead data into the recovered client data to create modified client data; and outputting the modified client data.

    摘要翻译： 一种方法包括接收客户数据; 从客户端数据提取开销数据; 将客户端数据映射到一个或多个帧，其中一个或多个帧中的每一个具有帧有效载荷部分和帧开销部分，其中客户端数据被映射到一个或多个帧的帧有效载荷部分; 将开销数据插入到一个或多个帧的帧开销部分中; 通过网络传送一个或多个帧; 从所述一个或多个帧的帧开销部分提取开销数据; 从一个或多个帧恢复客户端数据; 将提取的开销数据插入到恢复的客户端数据中以创建修改的客户端数据; 并输出修改的客户端数据。

    Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same
    28.
    发明授权
    Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same 有权
    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。

    Recovery of Client Clock Without Jitter
    30.
    发明申请
    Recovery of Client Clock Without Jitter 有权
    恢复客户端时钟无抖动

    公开(公告)号：US20070001722A1

    公开(公告)日：2007-01-04

    申请号：US11426481

    申请日：2006-06-26

    申请人： Scott Young ,  Ting-Kuang Chiang

    发明人： Scott Young ,  Ting-Kuang Chiang

    IPC分类号： H03L7/06

    CPC分类号： H03L7/081 ,  H03L7/185 ,  H03L2207/12 ,  H04J3/076

    摘要： The present invention provides a system, apparatus and method for recovering a client signal clock. The present invention is able to more effectively remove jitter within a clock signal by providing a phase shifting element in the feedback of a PLL system to compensate for sudden changes in an input reference clock. The PLL system provides flexible clock recovery so that it can accommodate various payload types because it extracts a client clock signal independent of a corresponding justification count number.

    摘要翻译： 本发明提供一种用于恢复客户端信号时钟的系统，装置和方法。 通过在PLL系统的反馈中提供相移元件来补偿输入参考时钟的突然变化，本发明能够更有效地消除时钟信号内的抖动。 PLL系统提供灵活的时钟恢复，使得它可以适应各种有效载荷类型，因为它提取独立于对应对齐计数的客户端时钟信号。