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    • 22. 发明授权
    • 서비스 품질 보장형 스위치드 라우터 시스템
    • 交换路由器系统具有QoS保证
    • KR100799574B1
    • 2008-01-31
    • KR1020060071647
    • 2006-07-28
    • 한국전자통신연구원
    • 강태규정태식최우영김법중주범순
    • H04L12/28H04L12/24
    • 본 발명은 서비스 품질 보장형 스위치드 라우터 시스템을 개시한다.
      본 발명에 의하면, 10개 포트의 1기가비트 이더넷 또는 10개 포트의 m 기가비트 이더넷의 라인 인터페이스를 통해 선택적으로 수신한 인터넷 프로토콜(Internet Protocol) 또는 멀티 프로토콜 레이블 스위치(Multi-Protocol Label Switch) 패킷을 애플리케이션별로 플로우 기반 프로세싱하는 제1 및 제2 라인 처리부 및 제1 및 제2 라인 처리부의 부팅 프로세스 및 소프트웨어 로드 데이터를 다운로드하며, 제1 및 제2 라인 처리부로부터 관리 정보를 취합하여 알람, 로그, 통계, 성능 모니터링을 포함하는 시스템 관리를 하며, 시스템을 관리할 수 있는 외부 인터페이스를 제공하는 응용처리부를 포함하여, 20 Gbps 전이중 방식(Full-duplex)으로 선속 스위칭 및 라우팅을 제공하여 출력하여, 비동기전송방식의 서비스 품질과 인터넷 프로토콜의 확장성 및 보편성을 결합시킨 플로우 단위 전송 방식으로 플로우 기반 패킷 분류, 지능적인 폭주 제어를 제공할 수 있어 광대역 통합망(Broadband Convergence Network) 구축시 기존의 인터넷 액세스 망을 변경하지 않고도 서비스 품질 보장형(QoS Guaranteed)의 네트워크를 구축할 수 있는 이점을 제공한다.
    • 25. 发明公开
    • 라우터의 라인 인터페이스 모듈 및 이를 구비한 라우팅시스템
    • 线路接口模块在路由器和路由系统中具有相同的功能
    • KR1020030094464A
    • 2003-12-12
    • KR1020020031365
    • 2002-06-04
    • 한국전자통신연구원
    • 김법중최우영전종암변성혁김학서장원석김재영안병준이형호
    • H04L12/02
    • H04L45/60G06F13/4004H04L49/351
    • PURPOSE: A line interface module in a router and a routing system having the same are provided to integrate many line interfaces into a single line interface module and to execute fault management, inter-processor connection, switch interfacing, etc., through the line interface module. CONSTITUTION: A line interface module(10) consists of a sub switching card(13) and a backplane(14). The sub switching card(13) comprises line cards(11,12), a sub switch(131), and switch input-output buffers(133,134). The backplane(14) connects between the line cards(11,12) and the sub switching card(13). Each line card(11,12) comprises physical link ports(111,114,121,124), physical layer interface parts(112,15,122,125), and network processors(113,116,123,126). The network processors(113,116,123,126) process the packet switching and forwarding function of an OSI(Open System Interconnection) 3/4+ layer. The sub switch(131) executes sub switching to target data channels for the data supplied from the line cards(11,12) and the switch input-output buffers(133,134). The switch input-output buffers(133,134) buffer the data inputted/outputted between the switch of a routing system and the sub switch(131).
    • 目的:提供路由器中的线路接口模块和具有该线路接口模块的路由系统,以将许多线路接口集成到单线接口模块中,并通过线路接口执行故障管理,处理器间连接,交换机接口等 模块。 构成:线路接口模块(10)由子交换卡(13)和背板(14)组成。 副开关卡(13)包括线路卡(11,12),子开关(131)和开关输入输出缓冲器(133,134)。 背板(14)连接在线路卡(11,12)和子交换卡(13)之间。 每个线卡(11,12)包括物理链路端口(111,114,121,124),物理层接口部分(112,15,122,125)和网络处理器(113,116,123,126)。 网络处理器(113,116,123,126)处理OSI(开放系统互连)3/4 +层的分组交换和转发功能。 子开关(131)对从线卡(11,12)和开关输入 - 输出缓冲器(133,134)提供的数据执行对目标数据通道的子切换。 开关输入输出缓冲器(133,134)缓冲在路由系统的交换机和子交换机(131)之间输入/输出的数据。
    • 26. 发明公开
    • 전송라인보드의 가변적 이중화가 가능한 ATM 스위치시스템 및 그 방법
    • 具有可变变换传输线的ATM开关系统及其方法
    • KR1020030021024A
    • 2003-03-12
    • KR1020010054454
    • 2001-09-05
    • 한국전자통신연구원
    • 최우영김법중안병준이형호
    • H04L12/50
    • PURPOSE: An ATM switch system capable of variably dualizing transmission line boards and a method thereof are provided to add variable dualization function of the transmission line boards, thereby reducing transmission cost of a system and reducing cost for expanding switch boards. CONSTITUTION: Switching elements(201a,201b) receive ATM(Asynchronous Transfer Mode) cells for switching the ATM cells. Input switch interfaces(203-1a,...,203-na,203-1b,...,203-nb) receive the ATM cells through a plurality of paths for transmitting to the switching elements(201a,201b). Output switch interfaces(204-1a,...,204-na,204-1b,...,204-nb) receive the switched ATM cells from the switching elements(201a,201b) to transmit to the outside. Switch interface control units(202a,202b) controls to transmit the ATM cells in the first mode or the second mode. In the first mode, only ATM cells input through any one path are transmitted to the switching element(201a,201b). In the second mode, the ATM cells are transmitted through each independent path in the switching element(201a,201b).
    • 目的:提供一种能够对传输线路板进行可变二元化的ATM交换机系统及其方法,以增加传输线路板的可变二元化功能,从而降低系统的传输成本,降低扩展交换板的成本。 构成:开关元件(201a,201b)接收用于切换ATM单元的ATM(异步传输模式)单元。 输入开关接口(203-1a,...,203-na,203-1b,...,203-nb)通过多条路径接收ATM信元,以便传送给开关元件(201a,201b)。 输出开关接口(204-1a,...,204-na,204-1b,...,204-nb)从开关元件(201a,201b)接收切换的ATM信元以向外部发送。 开关接口控制单元(202a,202b)控制以第一模式或第二模式发送ATM信元。 在第一模式中,仅通过任何一个路径输入的ATM信元被传送到开关元件(201a,201b)。 在第二模式中,ATM信元通过开关元件(201a,201b)中的每个独立路径发送。
    • 27. 发明公开
    • 전류누설 차단기능을 가지는 차동 전하펌프 회로
    • 具有电流泄漏功能的差动充电电路
    • KR1020010064022A
    • 2001-07-09
    • KR1019990062136
    • 1999-12-24
    • 한국전자통신연구원주식회사 케이티
    • 최은창이명수정태식최우영이범철
    • H03L7/06
    • PURPOSE: A differential charge pump circuit having a current leakage blocking function is provided which blocks leakage current path of a loop filter using a self-bias technique to improve the performance of a phase locked loop. CONSTITUTION: A differential charge pump circuit having a current leakage blocking function includes a pair of NMOS switching elements(309,312) for receiving input signals, a pair of PMOS switching elements(305,308) for receiving differential input signals, and a pair of NMOS switching elements(310,311) and PMOS switching elements(306,307) constructing a cross-coupled drain structure. The circuit further has a loop filter(320) for generating an output signal, and current imaging devices (330,340,350,360) for receiving the output signal. The current imaging devices are horizontally symmetrically located in order to control the magnitude of charge and discharge current of the switching elements.
    • 目的:提供具有电流泄漏阻断功能的差分电荷泵电路,其利用自偏置技术阻止环路滤波器的漏电流路径,以提高锁相环的性能。 构成:具有漏电阻塞功能的差分电荷泵电路包括用于接收输入信号的一对NMOS开关元件(309,312),用于接收差分输入信号的一对PMOS开关元件(305,308)和一对NMOS开关元件 (310,311)和构成交叉耦合漏极结构的PMOS开关元件(306,307)。 电路还具有用于产生输出信号的环路滤波器(320)和用于接收输出信号的当前成像设备(330,340,350,360)。 当前的成像装置水平对称地定位,以便控制开关元件的充电和放电电流的大小。
    • 28. 发明公开
    • 고속으로 동작하는 충전 펌프 장치
    • 充气泵在高速运行
    • KR1020010010391A
    • 2001-02-05
    • KR1019990029262
    • 1999-07-20
    • 한국전자통신연구원주식회사 케이티
    • 이범철최은창박권철정태식최우영
    • H02M3/07
    • PURPOSE: A charging pump operated in high speed is provided to solve a contradictory problem of operation velocity and leakage current generated from a charging pump circuit by installing an anti-leakage circuit and a feedback circuit. CONSTITUTION: Simple structured anti-leakage circuits(232,233) are installed between a high charging pump circuit(200) and a differential loop filter(220). A leakage current take place in a differential mode due to current variations of a current driving source as output voltage variations of the differential loop filter(220) varies. A feedback circuit is installed to prevent the leakage current. The differential loop filter(220) and the charging pump circuit are connected during charging or pumping, and separated during hold. So, the leakage current does not take place even if operated in high speed. The charging and pumping of the differential loop filter(220) are controlled by up/down signals. The differential leakage current can be completely interrupted in the hold mode.
    • 目的:提供高速运行的充电泵,通过安装防漏电路和反馈电路来解决从充电泵电路产生的运行速度和漏电流的矛盾问题。 构成:在高充电泵电路(200)和差动环路滤波器(220)之间安装简单的结构化防漏电路(232,233)。 由于差动环路滤波器(220)的输出电压变化变化,由于电流驱动源的电流变化,在差分模式中发生漏电流。 安装反馈电路以防止漏电流。 差分环路滤波器(220)和充电泵电路在充电或泵送期间连接,并在保持期间分离。 因此,即使高速运行,也不会发生漏电流。 差分环路滤波器(220)的充电和泵浦由上/下信号控制。 在保持模式下,差分漏电流可以完全中断。
    • 30. 发明公开
    • 센서네트워크의 싱크노드와 그 운용방법
    • SINK节点及其操作方法
    • KR1020100135074A
    • 2010-12-24
    • KR1020090053529
    • 2009-06-16
    • 한국전자통신연구원
    • 최우영김법중안병준
    • H04W84/18H04W24/00
    • H04W84/18H04W24/08
    • PURPOSE: A sink node and an operating method thereof are provided to classify detection values in effective ranges by judging the validity of the detected value of each sensor node. CONSTITUTION: A sensor node(100) detects the peripheral information periodically, and transmits a detection value to a sync node(110). A wired/wireless communication unit(112) performs the communication with the sensor node or a cluster head node and a host. For the detection value, a detection value management unit(114) process the detection value according to first and second threshold values for each preset sensor node. A detection value storage unit(116) generates the detection value for each unit time in record.
    • 目的:提供汇聚节点及其操作方法,通过判断每个传感器节点的检测值的有效性对检测值进行有效范围分类。 构成:传感器节点(100)周期性地检测周边信息,并将检测值发送到同步节点(110)。 有线/无线通信单元(112)执行与传感器节点或簇头节点和主机的通信。 对于检测值,检测值管理单元(114)根据每个预设传感器节点的第一和第二阈值来处理检测值。 检测值存储单元(116)生成记录中的每个单位时间的检测值。