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    Method and apparatus for constructing a forwarding database for a data communications network
    3.
    发明授权
    Method and apparatus for constructing a forwarding database for a data communications network 有权
    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

    Applicant: Matthew James Collins ,  Neil Alasdair James Jarvis

    Inventor： Matthew James Collins ,  Neil Alasdair James Jarvis

    IPC: H04L12/28

    CPC classification number: H04L45/54 ,  H04L45/02

    Abstract: 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.

    Abstract translation: 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。

    Receiver circuit
    4.
    发明授权
    Receiver circuit 有权
    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

    Applicant: Douglas Roger Pulley ,  Matthew James Collins

    Inventor： Douglas Roger Pulley ,  Matthew James Collins

    IPC: H04L2706

    CPC classification number: H04N5/455 ,  H04L27/2662 ,  H04L27/2678 ,  H04N21/42607 ,  H04N21/4382 ,  H04N21/6112

    Abstract: 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.

    Abstract translation: 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。

    Demodulator circuit
    5.
    发明授权
    Demodulator circuit 有权
    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

    Applicant: Matthew James Collins

    Inventor： Matthew James Collins

    IPC: H04L27/06

    CPC classification number: H04L27/38 ,  H04L25/067 ,  H04L27/2647

    Abstract: 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.

    Abstract translation: 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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