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1. 发明授权

US06577594B1 Telecommunications system 失效
标题翻译：电信系统
公开(公告)号：US06577594B1
公开(公告)日：2003-06-10
申请号：US09327371
申请日：1999-06-04
申请人： Ghani A Abbas , Bernard J Goatly , Stephen T Chapman
发明人： Ghani A Abbas , Bernard J Goatly , Stephen T Chapman
IPC分类号： H04L12437
CPC分类号： H04J3/085 , H04J2203/0051 , H04J2203/006
摘要： A synchronous digital hierarchy (SDH) telecommunications system for transporting traffic with control bytes for indicating the sources of the traffic. The system comprises a plurality of interconnected nodes each capable of identifying undeliverable traffic by checking the sources indicated by the control bytes. The system also comprises a network management system (NMS) arranged to provide each node with information concerning the expected sources of the traffic. The system acts to identify undeliverable traffic by comparing the sources indicated by the control bytes with the expected sources.
摘要翻译：用于传输具有用于指示流量来源的控制字节的业务的同步数字层级（SDH）电信系统。该系统包括多个互连节点，每个节点能够通过检查由控制字节指示的源来识别不可投递的业务。该系统还包括网络管理系统（NMS），网络管理系统（NMS）被布置为向每个节点提供关于流量的预期来源的信息。该系统通过将控制字节指示的源与预期来源进行比较来识别不可投递的流量。

2. 发明授权

US06009530A Real time clock synchronization in a telecommunications network 失效
标题翻译：电信网络中的实时时钟同步
公开(公告)号：US06009530A
公开(公告)日：1999-12-28
申请号：US836865
申请日：1997-06-23
申请人： Bernard J Goatly
发明人： Bernard J Goatly
IPC分类号： G04G7/00 , G06F1/14 , H04J3/06 , H04L7/00 , G06F1/12
CPC分类号： H04J3/14 , G04G7/00 , H04J3/0647 , H04J2203/0058 , H04J2203/0089
摘要： In a telecommunication network, a method of determining the accuracy of the real time clocks associated with each element of the network is disclosed. The method comprises sending a marker signal at a predetermined reference time along with the traffic signals to one or more elements in the network, and arranging the element to record the time of the arrival of the marker signal using its clock. The recorded time is then compared with the reference time at the network management center so as to determine the accuracy. In order to correct an inaccurate clock, a message signal is sent, so as to cause the clock to be adjusted by the difference between the reference and its recorded time.
摘要翻译： PCT No.PCT / GB95 / 02784 Sec。 371日期：1997年6月23日 102（e）日期1997年6月23日PCT提交1995年11月28日PCT公布。公开号WO96 / 17278 日期1996年6月6日在电信网络中，公开了确定与网络的每个元件相关联的实时时钟的精度的方法。该方法包括将预定参考时间的标记信号与业务信号一起发送到网络中的一个或多个元件，并且使用其时钟来布置该元素记录标记信号的到达时间。然后将记录的时间与网络管理中心的参考时间进行比较，以确定准确性。为了校正不准确的时钟，发送消息信号，以便通过参考和其记录时间之间的差异来调整时钟。

3. 发明授权

US06810046B2 Method of communicating data in communication systems 有权
标题翻译：在通信系统中传送数据的方法
公开(公告)号：US06810046B2
公开(公告)日：2004-10-26
申请号：US09751294
申请日：2000-12-28
申请人： Ghani A. M Abbas , Peter J Livermore , Philip a Arnold , Bernard J Goatly
发明人： Ghani A. M Abbas , Peter J Livermore , Philip a Arnold , Bernard J Goatly
IPC分类号： H04J322
CPC分类号： H04J3/0602 , H04J3/06 , H04J3/0605 , H04J3/14
摘要： The invention pertains to a communication system (300) including one or more communication channels (10), each channel comprising a transmitter unit (20) and a receiver unit (40). Each transmitter unit (20) is connected through an optical fiber link (30) to its associated receiver unit (40). In operation, each receiver unit (20) receives payload data from its associated sending client and adds overhead data to the payload data to generate corresponding aggregate data (600). The aggregate data of each transmitter unit (20) is conveyed through the fiber link (30) to its associated receiver unit (40) which receives the aggregate data, decodes it to separate the payload data from the overhead data and then outputs the payload data to its associated receiving client. The receiver unit (40) interprets the overhead data and uses it for controlling and managing the payload data in the system (300). The one or more channels of the system (300) are capable of adapting to the bit data rate of their associate payload data; thus, the channels are capable of operating mutually asynchronously, thereby circumventing a need for justification in the aggregate data. Moreover, each transmitter unit (20) is operable to add the overhead data to the payload data when generating the aggregate data so that the number of payload bits relative to the number of overhead bits is in a fixed ratio of 31:1. Such a fixed ratio renders the aggregate data simpler to decode and bit error rate easier to determine therefrom.
摘要翻译：本发明涉及包括一个或多个通信信道（10）的通信系统（300），每个信道包括发射机单元（20）和接收机单元（40）。每个发射机单元（20）通过光纤链路（30）连接到其相关联的接收机单元（40）。在操作中，每个接收器单元（20）从其相关联的发送客户端接收有效载荷数据，并将开销数据添加到有效载荷数据以生成对应的聚合数据（600）。每个发射机单元（20）的聚合数据通过光纤链路（30）传送到其相关联的接收单元（40），接收单元（40）接收聚合数据，对其进行解码，以将有效载荷数据与开销数据分离，然后输出有效载荷数据到其相关联的接收客户端。接收器单元（40）解释开销数据并使用它来控制和管理系统（300）中的有效载荷数据。系统（300）的一个或多个信道能够适应其相关有效载荷数据的比特数据速率; 因此，信道能够相互异步地进行操作，从而避免了在汇总数据中的正当性的需要。此外，每个发射机单元（20）可操作以在生成聚合数据时将开销数据添加到有效载荷数据，使得相对于开销比特数的有效载荷比特数量为31:1的固定比例。这样的固定比例使得聚合数据更简单，从而更容易解码，误码率更容易确定。

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