公开(公告)号：US08249063B2

公开(公告)日：2012-08-21

申请号：US12494449

申请日：2009-06-30

申请人： Cheng Gang Duan ,  Lin Hua ,  Ze Mian Huang ,  Michael S. Shaffer ,  Tao Wang

发明人： Cheng Gang Duan ,  Lin Hua ,  Ze Mian Huang ,  Michael S. Shaffer ,  Tao Wang

IPC分类号： H04L12/50 ,  H04Q11/00

CPC分类号： H04J3/04 ,  H04J3/1611

摘要： A communication device comprises a signal combiner, first storage elements, second storage elements and a controller. The signal combiner is configured to combine overhead information with additional information in forming a frame of a signal. The first storage elements are adapted to receive respective portions of a given block of the overhead information to be applied to the signal combiner, and the second storage elements are coupled between respective ones of the first storage elements and respective inputs of the signal combiner. The controller is operative to monitor a count of portions of the frame as the frame is formed by the signal combiner and to control loading of the portions of the given block of the overhead information into the second storage elements from the first storage elements responsive to the monitored count. The disclosed techniques for guaranteed consistent overhead insertion can be implemented in any type of communication system which utilizes overhead insertion in its framing operations.

摘要翻译： 通信设备包括信号组合器，第一存储元件，第二存储元件和控制器。 信号组合器被配置为将开销信息与形成信号的帧的附加信息组合。 第一存储元件适于接收要施加到信号组合器的开销信息的给定块的相应部分，并且第二存储元件耦合在信号组合器的相应的第一存储元件和相应的输入端之间。 所述控制器可操作以在所述帧由所述信号组合器形成时监视所述帧的部分的计数，并且响应于所述第一存储元件控制所述开销信息的给定块的所述部分的部分到所述第二存储元件 监测数。 所公开的用于保证一致的开销插入的技术可以在任何类型的通信系统中实现，该系统在其成帧操作中利用开销插入。

公开(公告)号：US08179807B2

公开(公告)日：2012-05-15

申请号：US11935533

申请日：2007-11-06

申请人： Cheng Gang Duan ,  Lin Hua ,  Michael S. Shaffer

发明人： Cheng Gang Duan ,  Lin Hua ,  Michael S. Shaffer

IPC分类号： G01R31/08

CPC分类号： H04J3/14 ,  H04J2203/006 ,  H04L41/0668

摘要： Techniques are disclosed for in-band communication of alarm status information or other information between physical layer devices comprising a working device and a protection device in a network-based communication system. In one aspect, a protection receive signal is monitored in the protection device for the presence of alarm status information. The protection device encodes alarm status information extracted from the protection receive signal, and inserts the encoded alarm status information into one or more designated portions of a protection loop-back signal supplied from the protection device to the working device. The protection loop-back signal is monitored in the working device and the encoded alarm status information therein is decoded and utilized by the working device to initiate a protection switching operation.

摘要翻译： 公开了用于在基于网络的通信系统中的包括工作设备和保护设备的物理层设备之间的报警状态信息或其他信息的带内通信的技术。 在一个方面，在保护装置中监视保护接收信号以存在警报状态信息。 保护装置编码从保护接收信号提取的报警状态信息，并将编码的报警状态信息插入到从保护装置提供给工作装置的保护环回信号的一个或多个指定部分。 在工作装置中监视保护环回信号，并且其中的编码报警状态信息由工作装置解码和利用以启动保护切换操作。

公开(公告)号：US08169918B2

公开(公告)日：2012-05-01

申请号：US12494459

申请日：2009-06-30

申请人： Cheng Gang Duan ,  Lin Hua ,  Ze Mian Huang ,  Michael S. Shaffer ,  Qian Gao Xu

发明人： Cheng Gang Duan ,  Lin Hua ,  Ze Mian Huang ,  Michael S. Shaffer ,  Qian Gao Xu

IPC分类号： H04J1/16

CPC分类号： H04J3/14 ,  H04L49/90

摘要： An apparatus for monitoring of received information in a communication device comprises a first buffer having a plurality of storage elements adapted to store respective portions of the received information, a second buffer coupled to the first buffer and having a plurality of storage elements corresponding to respective ones of the storage elements of the first buffer, and controller circuitry coupled to the buffers and operative to detect a message sequence comprising a plurality of the portions of the received information. The second buffer stores a previously-detected message sequence loaded from the first buffer into the second buffer under control of the controller circuitry. The controller circuitry in detecting a current message sequence is configurable in at least first and second different monitoring modes each associated with a different message format. The monitoring mode of the controller circuitry may be adaptively configured based at least in part on a detected message sequence.

摘要翻译： 一种用于在通信设备中监视接收到的信息的装置包括具有多个存储元件的第一缓冲器，其适于存储接收到的信息的相应部分;耦合到第一缓冲器的第二缓冲器，并且具有对应于相应信息的多个存储元件 的第一缓冲器的存储元件以及耦合到缓冲器的控制器电路，并且可操作以检测包括所接收信息的多个部分的消息序列。 第二缓冲器在控制器电路的控制下存储先前检测到的从第一缓冲器加载到第二缓冲器中的消息序列。 检测当前消息序列中的控制器电路可配置在至少第一和第二不同监视模式中，每个与不同的消息格式相关联。 可以至少部分地基于检测到的消息序列来自适应地配置控制器电路的监视模式。

公开(公告)号：US07792132B2

公开(公告)日：2010-09-07

申请号：US12331807

申请日：2008-12-10

申请人： Si Ruo Chen ,  Chenggang Duan ,  Lin Hua ,  Michael S. Shaffer ,  Qian Gao Xu

发明人： Si Ruo Chen ,  Chenggang Duan ,  Lin Hua ,  Michael S. Shaffer ,  Qian Gao Xu

IPC分类号： H04L12/56

CPC分类号： H04J3/1611 ,  H04J3/14

摘要： In one embodiment, the present invention is a framer/mapper/multiplexor (FMM) device that can simultaneously (i) send protection copies of both its working incoming high-speed (e.g., STS-12) signal and incoming low-speed signals to a protection FMM device, and (ii) receive corresponding protection signals from the protection FMM device. Furthermore, the FMM device can select between working and protection signals at a switching level (e.g., STS-1) lower than the high-speed level, allowing for 1+1 APS/MSP protection and equipment protection at the board level, the device level, and at the STS-1 level. Yet further, four or more FMM devices can be configured so that all FMM devices can communicate with their corresponding protection FMM devices using a single, shared, 4-pin link (e.g., quad-OC-3 mode), and still select between working and protection signals at the switching level (e.g., STS-1).

摘要翻译： 在一个实施例中，本发明是一种成帧器/映射器/多路复用器（FMM）装置，其可以同时（i）将工作进入的高速（例如，STS-12）信号和进入的低速信号的保护副本发送到 保护FMM设备，以及（ii）从保护FMM设备接收相应的保护信号。 此外，FMM设备可以在低于高速电平的开关电平（例如，STS-1）之间选择工作和保护信号，从而允许在电路板级别进行1 + 1 APS / MSP保护和设备保护，设备 级别和STS-1级别。 此外，可以配置四个或更多个FMM设备，使得所有FMM设备可以使用单个共享的4引脚链路（例如，quad-OC-3模式）与其相应的保护FMM设备进行通信，并且仍然在工作之间进行选择 和开关电平的保护信号（例如，STS-1）。

公开(公告)号：US20100221001A1

公开(公告)日：2010-09-02

申请号：US12394270

申请日：2009-02-27

申请人： Cheng Gang Duan ,  Lin Hua ,  Michael S. Shaffer ,  Tao Wang ,  Qian G. Xu

发明人： Cheng Gang Duan ,  Lin Hua ,  Michael S. Shaffer ,  Tao Wang ,  Qian G. Xu

IPC分类号： H04J14/00

CPC分类号： H04J3/14 ,  H04J3/0623 ,  H04J3/0685 ,  H04J2203/006

摘要： Methods and apparatus are provided for framing synchronization control for a framer/mapper/multiplexor (FMM) device with 1+1 and equipment protection. FMM device are disclosed that synchronize one or more internal signals by changing a phase of the one or more internal signals without changing a frequency of the one or more internal signals based on a desired phase at a destination of each of the one or more internal signals. A programmable synchronization signal may optionally be employed for the synchronization.

摘要翻译： 提供了用于具有1 + 1和设备保护的成帧器/映射/多路复用器（FMM）装置的成帧同步控制的方法和装置。 FMM装置被公开，其通过改变一个或多个内部信号的相位来同步一个或多个内部信号，而不改变一个或多个内部信号的频率，基于在一个或多个内部信号中的每一个的目的地的期望相位 。 可选地可以采用可编程同步信号来进行同步。

公开(公告)号：US06775302B1

公开(公告)日：2004-08-10

申请号：US09459439

申请日：1999-12-13

申请人： Michael S. Shaffer ,  Himanshu Mahendra Thaker ,  Charles Albert Webb, III ,  Lesley Jen-Yuan Wu

发明人： Michael S. Shaffer ,  Himanshu Mahendra Thaker ,  Charles Albert Webb, III ,  Lesley Jen-Yuan Wu

IPC分类号： H04J306

CPC分类号： H04Q11/0478 ,  H04L2012/5674

摘要： A communications system includes a physical layer device (PLD) and a logical link device (LLD), each having respective send and receive interfaces being substantially identical to define symmetrical interfaces for the system. Accordingly, design and manufacturing is simplified compared to conventional systems. In addition, advantages are also provided in terms of loopback capability and packaging options. The PLD comprises a PLD send interface including PLD parallel information outputs, and a PLD receive interface including PLD parallel information inputs. Similarly, the LLD comprises an LLD receive interface including LLD parallel information inputs, and an LLD send interface including LLD parallel information outputs. Parallel communications channels connect the PLD information outputs to respective LLD information inputs, and connect the LLD information outputs to respective PLD information inputs. The PLD send interface and the LLD send interface are substantially identical, and the PLD receive interface and the LLD receive interface are substantially identical to thereby define the symmetrical interfaces for the system. In view of the symmetrical interfaces, the PLD and the LLD may operate in a push-push configuration. Deskewing features are also provided.

摘要翻译： 通信系统包括物理层设备（PLD）和逻辑链路设备（LLD），每个物理层设备（LLD）各自具有相同的发送和接收接口，以定义用于系统的对称接口。 因此，与常规系统相比，设计和制造被简化。 此外，还提供了环回能力和封装选项方面的优势。 PLD包括包括PLD并行信息输出的PLD发送接口和包括PLD并行信息输入的PLD接收接口。 类似地，LLD包括包括LLD并行信息输入的LLD接收接口和包括LLD并行信息输出的LLD发送接口。 并行通信通道将PLD信息输出连接到相应的LLD信息输入，并将LLD信息输出连接到相应的PLD信息输入。 PLD发送接口和LLD发送接口基本相同，PLD接收接口和LLD接收接口基本相同，从而定义了系统的对称接口。 鉴于对称接口，PLD和LLD可以以推 - 推配置运行。 还提供脱色功能。

公开(公告)号：US20100329122A1

公开(公告)日：2010-12-30

申请号：US12494459

申请日：2009-06-30

申请人： Cheng Gang Duan ,  Lin Hua ,  Ze Mian Huang ,  Michael S. Shaffer ,  Qian Gao Xu

发明人： Cheng Gang Duan ,  Lin Hua ,  Ze Mian Huang ,  Michael S. Shaffer ,  Qian Gao Xu

IPC分类号： H04L12/26 ,  H04L12/56

CPC分类号： H04J3/14 ,  H04L49/90

摘要： An apparatus for monitoring of received information in a communication device comprises a first buffer having a plurality of storage elements adapted to store respective portions of the received information, a second buffer coupled to the first buffer and having a plurality of storage elements corresponding to respective ones of the storage elements of the first buffer, and controller circuitry coupled to the buffers and operative to detect a message sequence comprising a plurality of the portions of the received information. The second buffer stores a previously-detected message sequence loaded from the first buffer into the second buffer under control of the controller circuitry. The controller circuitry in detecting a current message sequence is configurable in at least first and second different monitoring modes each associated with a different message format. The monitoring mode of the controller circuitry may be adaptively configured based at least in part on a detected message sequence.

摘要翻译： 一种用于在通信设备中监视接收到的信息的装置包括具有多个存储元件的第一缓冲器，其适于存储接收到的信息的相应部分;耦合到第一缓冲器的第二缓冲器，并且具有对应于相应信息的多个存储元件 的第一缓冲器的存储元件以及耦合到缓冲器的控制器电路，并且可操作以检测包括所接收信息的多个部分的消息序列。 第二缓冲器在控制器电路的控制下存储先前检测到的从第一缓冲器加载到第二缓冲器中的消息序列。 检测当前消息序列中的控制器电路可配置在至少第一和第二不同监视模式中，每个与不同的消息格式相关联。 可以至少部分地基于检测到的消息序列来自适应地配置控制器电路的监视模式。

公开(公告)号：US20100034247A1

公开(公告)日：2010-02-11

申请号：US12187692

申请日：2008-08-07

申请人： Michael S. Shaffer ,  Jay P. Wilshire ,  Harold J. Wilson

发明人： Michael S. Shaffer ,  Jay P. Wilshire ,  Harold J. Wilson

IPC分类号： H04B17/00

CPC分类号： H04L47/824 ,  H04L47/70 ,  H04L47/72 ,  H04L47/822 ,  H04L47/826 ,  H04W24/00 ,  H04W76/10

摘要： Methods and apparatus are provided for evaluating the throughput limit of a communication system, such as a network node or system. A throughput limit of a communication system is evaluated by receiving a request to allocate at least one connection of a given data type; obtaining an assigned weight for the at least one connection, wherein the assigned weight is based on the throughput limit and a processing limit indicating a throughput of the communication system for the given data type within a given time window; and determining whether to allocate the at least one connection of a given data type based on whether a sum of the assigned weights for each existing allocated connection for each data type exceeds the throughput limit. The assigned weight for a given data type can be subtracted from the sum upon receiving a request to de-allocate a connection.

摘要翻译： 提供了用于评估诸如网络节点或系统的通信系统的吞吐量极限的方法和装置。 通过接收分配给定数据类型的至少一个连接的请求来评估通信系统的吞吐量限制; 获得所述至少一个连接的分配权重，其中所述分配权重基于所述吞吐量限制，以及处理限制，其指示给定数据类型在给定时间窗内的所述通信系统的吞吐量; 以及基于每个数据类型的每个现有分配的连接的分配权重的和是否超过吞吐量限制来确定是否分配给定数据类型的至少一个连接。 在接收到解除分配连接的请求时，可以从总和中减去给定数据类型的分配权重。

公开(公告)号：US20090115596A1

公开(公告)日：2009-05-07

申请号：US11935533

申请日：2007-11-06

申请人： Cheng Gang Duan ,  Lin Hua ,  Michael S. Shaffer

发明人： Cheng Gang Duan ,  Lin Hua ,  Michael S. Shaffer

IPC分类号： G08B29/00

CPC分类号： H04J3/14 ,  H04J2203/006 ,  H04L41/0668

摘要： Techniques are disclosed for in-band communication of alarm status information or other information between physical layer devices comprising a working device and a protection device in a network-based communication system. In one aspect, a protection receive signal is monitored in the protection device for the presence of alarm status information. The protection device encodes alarm status information extracted from the protection receive signal, and inserts the encoded alarm status information into one or more designated portions of a protection loop-back signal supplied from the protection device to the working device. The protection loop-back signal is monitored in the working device and the encoded alarm status information therein is decoded and utilized by the working device to initiate a protection switching operation.

摘要翻译： 公开了用于在基于网络的通信系统中的包括工作设备和保护设备的物理层设备之间的报警状态信息或其他信息的带内通信的技术。 在一个方面，在保护装置中监视保护接收信号以存在警报状态信息。 保护装置编码从保护接收信号提取的报警状态信息，并将编码的报警状态信息插入到从保护装置提供给工作装置的保护环回信号的一个或多个指定部分。 在工作装置中监视保护环回信号，并且其中的编码报警状态信息由工作装置解码和利用以启动保护切换操作。

公开(公告)号：US06678842B1

公开(公告)日：2004-01-13

申请号：US09459848

申请日：1999-12-13

申请人： Michael S. Shaffer ,  Himanshu Mahendra Thaker ,  Charles Albert Webb, III ,  Lesley Jen-Yuan Wu

发明人： Michael S. Shaffer ,  Himanshu Mahendra Thaker ,  Charles Albert Webb, III ,  Lesley Jen-Yuan Wu

IPC分类号： G11B500

CPC分类号： H04L25/14 ,  H04L1/0061

摘要： A communications system includes first and second devices connected by parallel communications channels. The first device preferably comprises a string-based framing coder for determining and appending a string-based framing code to each information symbol string of information symbol strings to be transmitted in parallel over respective parallel communications channels. Each string-based framing code is preferably based upon at least some of the information symbols in the respective information symbol string. In addition, the second device preferably includes a deskewer for aligning received parallel information symbol strings based upon the string-based framing codes. In other words, the string-based framing codes and their use to align received information symbol strings permit the information symbol to be transmitted at high rates and over relatively long distances and thereby be subject skew. The information symbols may be binary bits. The string-based coder may comprise a cyclic redundancy checking (CRC) coder for determining and appending CRC codes to respective information bit strings. Thus, the deskewer may comprise a CRC framer for framing the information bit strings based upon the CRC codes.

摘要翻译： 通信系统包括通过并行通信信道连接的第一和第二设备。 第一设备优选地包括基于串的成帧编码器，用于确定并将基于串的成帧代码附加到要在各个并行通信信道上并行发送的信息符号串的每个信息符号串。 每个基于字符串的成帧代码优选地基于相应信息符号串中的至少一些信息符号。 此外，第二装置优选地包括用于基于基于字符串的成帧代码对准所接收的并行信息符号串的偏移台。 换句话说，基于串的成帧代码及其用于对准接收到的信息符号串的使用允许以高速率和相对长的距离传输信息符号，从而受到偏差。 信息符号可以是二进制位。 基于串的编码器可以包括循环冗余校验（CRC）编码器，用于确定和附加到相应信息比特串的CRC码。 因此，台式电脑可以包括用于基于CRC码对信息位串进行成帧的CRC成帧器。