公开(公告)号：US07003690B2

公开(公告)日：2006-02-21

申请号：US10099470

申请日：2002-03-12

申请人： Valentino Liva ,  Isaac Wingfield

发明人： Valentino Liva ,  Isaac Wingfield

IPC分类号： G06F11/00

CPC分类号： H04M3/005 ,  H04M3/08

摘要： A system for redundancy switching of line cards in a communications system. When a line card needs to be replaced or serviced or becomes inoperable, signal traffic is switched to and through a redundant line card. This is achieved by implementing a switching fabric on I/O cards, where the I/O cards carry signal traffic to and from line cards. The switching fabric enables traffic to and from an I/O card servicing the line card to be replaced to instead service the redundant line card.

摘要翻译： 一种用于通信系统中线卡冗余切换的系统。 当线卡需要更换或维修或变得不可操作时，信号流量将切换到并通过冗余线路卡。 这是通过在I / O卡上实现交换结构来实现的，其中I / O卡将线路卡上的信号流量传送到线卡。 交换结构使得能够更换服务于线路卡的I / O卡的流量替代为冗余线路卡服务。

公开(公告)号：US07103047B1

公开(公告)日：2006-09-05

申请号：US10072625

申请日：2002-02-06

申请人： Isaac Wingfield

发明人： Isaac Wingfield

IPC分类号： H04L12/28 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04B1/66 ,  H04N21/2383 ,  H04N21/4305 ,  H04N21/4344 ,  H04N21/4382

摘要： In a cable modem system, increasing or decreasing the rate of an MPEG Transport Stream involves two separate, but related, tasks: 1) incorporating a sufficient number of additional packets (or discarding packets) to make up for the difference in data rates between input and output, and 2) altering timing information (for instance, PCR (Program Clock Reference) values) present in some incoming packets to reflect their altered positions in the output stream. Both of these tasks can be facilitated by the use of a FIFO (First-In, First-Out) structure, through which the data flows.

公开(公告)号：US07983268B1

公开(公告)日：2011-07-19

申请号：US12579530

申请日：2009-10-15

申请人： Isaac Wingfield

发明人： Isaac Wingfield

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04J3/02 ,  G06F15/16

CPC分类号： H04B1/66 ,  H04N21/2383 ,  H04N21/4305 ,  H04N21/4344 ,  H04N21/4382

摘要： In a cable modem system, increasing or decreasing the rate of an MPEG Transport Stream involves two separate, but related, tasks: 1) incorporating a sufficient number of additional packets (or discarding packets) to make up for the difference in data rates between input and output, and 2) altering timing information (for instance, PCR (Program Clock Reference) values) present in some incoming packets to reflect their altered positions in the output stream. Both of these tasks can be facilitated by the use of a FIFO (First-In, First-Out) structure, through which the data flows.

摘要翻译： 在电缆调制解调器系统中，增加或减少MPEG传输流的速率涉及两个单独但相关的任务：1）结合足够数量的附加分组（或丢弃分组）来弥补输入之间的数据速率差异 并且输出，以及2）改变存在于一些输入分组中的定时信息（例如，PCR（程序时钟参考）值）以反映其在输出流中的改变的位置。 这些任务都可以通过使用FIFO（先入先出）结构来实现，数据流通过该结构。