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1. 发明授权

US06958995B1 Non-blocking high capacity fine grain switch 有权
标题翻译：无阻塞大容量细粒开关
公开(公告)号：US06958995B1
公开(公告)日：2005-10-25
申请号：US09754041
申请日：2000-12-29
申请人： David M Goodman , Kim B Roberts
发明人： David M Goodman , Kim B Roberts
IPC分类号： H04L12/28 , H04L12/50 , H04L12/56 , H04Q11/00
CPC分类号： H04Q11/0005 , H04L49/15 , H04L49/357 , H04Q2011/0016 , H04Q2011/0075
摘要： A high capacity switch for switching communications traffic. The high capacity switch has a plurality of differing granularity switching levels, each switching level having at least one switch node capable of performing a switching operation at the granularity of the switching level and at least two primary connections, each connecting one of the switching levels to another one of the switching levels. At one of the switching levels, at least one switch node is capable of switching communications traffic along at least one switch connection path established along one of the primary connections, and is also capable of switching communications traffic along at least one secondary connection to another switch node within the same switching level, such that each of the at least one switch connection paths established is filled to a predetermined level.
摘要翻译：用于切换通信流量的高容量交换机。高容量交换机具有多个不同的粒度切换级别，每个交换级别具有能够以切换级别的粒度执行切换操作的至少一个交换节点和至少两个主要连接，每个连接将一个交换级别连接到另一个切换级别。在一个交换级别中，至少一个交换节点能够沿着沿主要连接之一建立的至少一个交换机连接路径来切换通信业务，并且还能够将至少一个辅助连接的通信业务切换到另一个交换机节点，使得所建立的至少一个交换机连接路径中的每一个被填充到预定的水平。

2. 发明授权

US06999470B2 Methods and apparatus for transmitting synchronous data 失效
公开(公告)号：US06999470B2
公开(公告)日：2006-02-14
申请号：US09894612
申请日：2001-06-28
申请人： Chris Murton , David M Goodman
发明人： Chris Murton , David M Goodman
IPC分类号： H04J3/16 , H04J3/04 , H04L12/28
CPC分类号： H04J3/1611
摘要： In order to allow geographically separate SONET/SDH networks to be interconnected transparently without changes in clock content, payload and overhead, it has conventionally necessary to use dark fiber. For relatively low bandwidth operators this is prohibitively expensive. The present invention proposes a scheme using a mapping and virtual concatenation scheme to allow SONET/SDH to be carried in a bandwidth efficient manner over a SONET/SDH link whilst maintaining clock integrity.

3. 发明授权

US06606362B1 Synchronization in a telecommunications network 有权
标题翻译：电信网络中的同步
公开(公告)号：US06606362B1
公开(公告)日：2003-08-12
申请号：US09342363
申请日：1999-06-29
申请人： Gareth Dalzell , David M Goodman
发明人： Gareth Dalzell , David M Goodman
IPC分类号： H04L700
CPC分类号： H04J3/0641 , H04J3/0647 , H04J3/0688 , H04L12/422 , H04L12/437
摘要： A synchronous digital communications network incorporating a number of nodes arranged in path protected rings and has two or more timing reference sources. The reference sources each allocated an artificial ranking of unique quality level values and these quality level values are transmitted as a section overhead message to provide a unique identifier for each source. Identification of the source to a node enables that node to be aware of a synchronization signal that has in fact originated from that node so as to prevent the setting up of synchronization loops. In a further embodiment the technique is extended to protection path identification for signals coupled between adjacent rings in a network having ring topology.
摘要翻译：一种并入数字节点的同步数字通信网络，其布置在路径保护环中并且具有两个或更多个定时参考源。每个分配了唯一质量等级值的人为排序的参考源被发送为部分开销消息，以为每个源提供唯一的标识符。对节点的源的识别使得该节点能够知道实际上源于该节点的同步信号，以便防止建立同步环路。在另一实施例中，该技术被扩展到在具有环形拓扑的网络中耦合在相邻环之间的信号的保护路径识别。

4. 发明授权

US06636529B1 Semi transparent tributary for synchronous transmission 有权
标题翻译：半透明支路用于同步传输
公开(公告)号：US06636529B1
公开(公告)日：2003-10-21
申请号：US09414367
申请日：1999-10-07
申请人： David M Goodman , Jayne Brady , Chris Murton
发明人： David M Goodman , Jayne Brady , Chris Murton
IPC分类号： H04J316
CPC分类号： H04J3/1617 , H04J2203/0073 , H04J2203/0085 , H04J2203/0094
摘要： An interface for converting a variety of incoming digital signals into SDH/SONET format for transmission on a synchronous digital network, by identifying the line code of the incoming digital signal, without identifying the information for OSI layer 2 or 3 processing, i.e. format of each packet. Headers are used to encapsulate incoming packets, and enable packets to be discriminated at the receiver. Advantages of performance monitoring capability and transparency are combined. Identifying line codes enables a greater degree of error detection, than a bit based interface. Also synchronisation can be simpler since line codes for padding can be added or deleted more easily than adding or subtracting bits. The interface is semi-transparent in the sense that identification of line codes limits the interface to those formats that use identifiable line codes, but without limiting to a particular OSI layer 2 or 3 frame format.
摘要翻译：一种接口，用于通过识别输入数字信号的线路代码，而不用识别OSI第2层或第3层处理的信息，即将各种输入数字信号转换成SDH / SONET格式，以便在同步数字网络上进行传输，即每个包。头部用于封装输入的数据包，并使接收器能够区分数据包。性能监控能力和透明度的优势相结合。识别线路码比基于位的接口能够进行更大程度的错误检测。同步可以更简单，因为用于填充的行代码可以比添加或减去位更容易地添加或删除。界面是半透明的，因为线代码的标识将界面限制为使用可识别行代码的格式，但不限于特定的OSI层2或3帧格式。

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