公开(公告)号：US06356566B1

公开(公告)日：2002-03-12

申请号：US09111235

申请日：1998-07-07

申请人： Tae Hee Lee ,  Jong Ho Kim ,  Jeong Hoon Ko ,  Yoo Kyoung Lee

发明人： Tae Hee Lee ,  Jong Ho Kim ,  Jeong Hoon Ko ,  Yoo Kyoung Lee

IPC分类号： H04J306

CPC分类号： H04J3/0685 ,  H04J3/047 ,  H04J2203/0089

摘要： A clock signal generating apparatus for a data communication channel is disclosed which includes a first clock signal generating unit for receiving an external input clock signal and a frame position informing signal and outputting a predetermined cycle first clock signal and a first timing signal, a second clock signal generating unit for receiving the first clock signal and the first timing signal and externally outputting a first offset signal, a second timing signal, and a predetermined cycle second clock signal, respectively, and a third clock signal generating unit for receiving the first clock signal and the first timing signal and externally outputting a second offset signal, a third timing signal and a predetermined cycle third clock signal, respectively, for thereby implementing a reliable serial/parallel conversion, extraction and insertion of a data by generating a stable clock and timing signal using a simple circuit and supplying a stable clock signal for matching with an external apparatus for thereby achieving a reliable data communication for a system.

摘要翻译： 公开了一种用于数据通信信道的时钟信号产生装置，包括：第一时钟信号产生单元，用于接收外部输入时钟信号和帧位置通知信号，并输出预定周期的第一时钟信号和第一定时信号;第二时钟 信号发生单元，用于分别接收第一时钟信号和第一定时信号，并分别外部输出第一偏移信号，第二定时信号和预定的周期第二时钟信号;第三时钟信号产生单元，用于接收第一时钟信号 和第一定时信号，并且分别从外部输出第二偏移信号，第三定时信号和预定的周期第三时钟信号，从而通过产生稳定的时钟和定时来实现可靠的串行/并行转换，数据的提取和插入 信号使用简单的电路并提供稳定的时钟信号以匹配 从而实现系统的可靠数据通信。

公开(公告)号：US07266124B2

公开(公告)日：2007-09-04

申请号：US10413177

申请日：2003-04-14

申请人： Mi Hui Kim ,  Jong Hyup Lee ,  Yoo Kyoung Lee

发明人： Mi Hui Kim ,  Jong Hyup Lee ,  Yoo Kyoung Lee

IPC分类号： H04L12/56

CPC分类号： H04L45/502 ,  H04L12/4641 ,  H04L45/04 ,  H04L45/302 ,  H04L45/507

摘要： The present invention presents a method for setting up a QoS (Quality-of-Service) supported bi-directional tunnel and distributing L2VPN (Layer-2 Virtual Private Network) membership information for an L2VPN using an extended LDP (Label Distribution Protocol). In a network providing MPLS based L2VPN service, which includes a plurality of VPN provider edges (PEs), a plurality of VPN customer edges (CEs) connected to the PEs and a VPN DNS (Domain Name Service) server for managing PE information associated with a plurality of VPNs, a PE registers information associated with the VPN DNS server to provide the L2VPN service, and uses the extended LDP for QoS supported bi-directional tunnel setup and the extended LDP for QoS supported L2VPN membership information distribution. A VPN CE needs only a simple Layer-2 connection providing function for the L2VPN service.

摘要翻译： 本发明提出了一种使用扩展LDP（标签分发协议）来建立QoS（服务质量）支持双向隧道并分发L2VPN（二层虚拟专用网）成员关系信息的方法。 在提供基于MPLS的L2VPN服务的网络中，其包括多个VPN提供商边缘（PE），连接到PE的多个VPN客户边缘（CE）和用于管理与PE相关联的PE信息的VPN DNS（域名服务）服务器 多个VPN，PE注册与VPN DNS服务器相关的信息，提供L2VPN业务，并使用扩展LDP进行QoS支持的双向隧道建立，扩展LDP进行QoS支持的L2VPN会员信息分发。 VPN CE只需要L2VPN服务的简单二层连接提供功能。