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1. 发明授权

US08223666B2 Method of constructing a forwarding database for a data communications network 有权
标题翻译：构建数据通信网络转发数据库的方法
公开(公告)号：US08223666B2
公开(公告)日：2012-07-17
申请号：US11211109
申请日：2005-08-23
申请人： Neil Alasdair James Jarvis , Crispin Nicholas Dent-Young , Alan J. Cheilek , Matthew James Collins , Christian Cassar , Jesper Skriver
发明人： Neil Alasdair James Jarvis , Crispin Nicholas Dent-Young , Alan J. Cheilek , Matthew James Collins , Christian Cassar , Jesper Skriver
IPC分类号： H04L12/28
CPC分类号： H04L45/54 , H04L45/02 , H04L45/7457
摘要： A method of constructing a forwarding database for a data communications network comprising a plurality of network components and supporting at least first and second topologies having one or more common network components is described. The forwarding database includes a plurality of entries providing forwarding information for data destined for a related network component. The method comprises the step, performed at a constructing network component, of deriving topology dependent forwarding information for data destined for a network component. The method further comprises the step of including the topology dependent forwarding information at the related forwarding database entry.
摘要翻译：描述了构建包括多个网络组件并且支持具有一个或多个公共网络组件的至少第一和第二拓扑的数据通信网络的转发数据库的方法。转发数据库包括多个条目，提供用于相关网络组件的数据的转发信息。该方法包括在构造网络组件处执行的针对网络组件的数据导出与拓扑相关的转发信息的步骤。该方法还包括在相关转发数据库条目处包括拓扑相关转发信息的步骤。

2. 发明授权

US07106810B2 Method and apparatus for a demodulator circuit 有权
公开(公告)号：US07106810B2
公开(公告)日：2006-09-12
申请号：US10105731
申请日：2002-03-22
申请人： Matthew James Collins , Jonathan Parker
发明人： Matthew James Collins , Jonathan Parker
IPC分类号： H04L27/06 , H04J11/00
CPC分类号： H04L25/067 , H04L1/20 , H04L27/2649
摘要： A method and apparatus for a demodulator circuit in a communication system is described. The invention relates to a demodulator circuit in a communication system using a multi-carrier modulation scheme. The demodulator makes efficient use of channel state information for respective carriers in the multi-carrier modulation to de-map the received data. An efficient method of calculating channel state information is also disclosed.

3. 发明授权

US07969995B2 Method and apparatus for constructing a forwarding database for a data communications network 有权
标题翻译：用于构建数据通信网络的转发数据库的方法和装置
公开(公告)号：US07969995B2
公开(公告)日：2011-06-28
申请号：US11211105
申请日：2005-08-23
申请人： Matthew James Collins , Neil Alasdair James Jarvis
发明人： Matthew James Collins , Neil Alasdair James Jarvis
IPC分类号： H04L12/28
CPC分类号： H04L45/54 , H04L45/02
摘要： A method of constructing a forwarding database for a data communications network comprising a plurality of network components and supporting at least first and second topologies having one or more common network components is described. The forwarding database includes at least first and second database structures having records including forwarding information for data destined for related network components in the respective topologies. Each database structure has a plurality of elements including a pointer to one of a succeeding element or a record including said forwarding information. The method comprises the step, performed at a constructing network component of identifying a network component common to the first and second topologies for which a record exists in the second database structure. The method further comprises the step of including a pointer from the related element in the first database structure to a corresponding element or record in the second database structure.
摘要翻译：描述了构建包括多个网络组件并且支持具有一个或多个公共网络组件的至少第一和第二拓扑的数据通信网络的转发数据库的方法。转发数据库至少包括具有记录的至少第一和第二数据库结构，包括用于相应拓扑中的相关网络组件的数据的转发信息。每个数据库结构具有多个元素，包括指向后续元素之一的指针或包括所述转发信息的记录。该方法包括以下步骤：在构建网络组件处执行识别在第二数据库结构中存在记录的第一和第二拓扑共同的网络组件。该方法还包括将来自第一数据库结构中的相关元素的指针包括到第二数据库结构中的相应元素或记录的步骤。

4. 发明授权

US06754292B1 Receiver circuit 有权
标题翻译：接收电路
公开(公告)号：US06754292B1
公开(公告)日：2004-06-22
申请号：US09617588
申请日：2000-07-18
申请人： Douglas Roger Pulley , Matthew James Collins
发明人： Douglas Roger Pulley , Matthew James Collins
IPC分类号： H04L2706
CPC分类号： H04N5/455 , H04L27/2662 , H04L27/2678 , H04N21/42607 , H04N21/4382 , H04N21/6112
摘要： A receiver circuit is for processing a received signal which includes at least a first portion and a second portion which repeats the content of the first portion after a repeat interval. For example, the receiver may be for DVB-T signals using COFDM. Two correlation values are measured. The first is between the first portion of the received signal, delayed by the repeat interval plus a difference interval, and the second portion. The second is between the first portion of the received signal, delayed by the repeat interval minus a difference interval, and the second portion. Any difference between the correlation values represents a difference between the receiver sampling rate, and the required sampling rate, and can be used to adjust the receiver sampling rate.
摘要翻译：接收机电路用于处理接收信号，该接收信号至少包括在重复间隔之后重复第一部分的内容的第一部分和第二部分。例如，接收机可以是使用COFDM的DVB-T信号。测量两个相关值。第一个是在接收信号的第一部分之间，延迟重复间隔加上差异间隔，以及第二部分。第二个是在接收信号的第一部分之间延迟重复间隔减去差分间隔和第二部分。相关值之间的任何差异表示接收机采样率和所需采样率之间的差异，可用于调整接收机采样率。

5. 发明授权

US07912155B2 Demodulator circuit 有权
标题翻译：解调器电路
公开(公告)号：US07912155B2
公开(公告)日：2011-03-22
申请号：US10250353
申请日：2000-12-28
申请人： Matthew James Collins
发明人： Matthew James Collins
IPC分类号： H04L27/06
CPC分类号： H04L27/38 , H04L25/067 , H04L27/2647
摘要： The invention relates to a demodulator circuit in a communication system using a multi-carrier modulation scheme. The demodulator uses channel state information for respective carriers in the multi-carrier modulation to de-map the received data.
摘要翻译：本发明涉及使用多载波调制方案的通信系统中的解调器电路。解调器在多载波调制中使用各个载波的信道状态信息来对接收的数据进行去映射。

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