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公开(公告)号：KR1020150000324A
公开(公告)日：2015-01-02
申请号：KR1020130072638
申请日：2013-06-24
Applicant: 한국전자통신연구원
IPC: H04L12/741 , H04L12/715
CPC classification number: H04L45/02
Abstract: ID(identification) 기반의 통신 시스템에서, 라우팅 장치는, 상위 계층의 도메인 및 하위 계층의 도메인, 그리고 동료 도메인들에 대한 링크 상태 정보를 사용하여, 계층적 네트워크 토폴로지를 생성한다. 그리고 계층적 네트워크 토폴로지를 토대로 라우팅 테이블을 구축하고, 라우팅 테이블을 이용하여 라우팅을 수행한다.
Abstract translation: 路由装置通过使用基于识别（ID）的通信系统中的上层和下层的域以及用于协作域的链路状态信息来生成分层网络拓扑。 路由设备基于分层网络拓扑构建路由表，并使用路由表进行路由。
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12.发明公开
公开(公告)号：KR1020140051777A
公开(公告)日：2014-05-02
申请号：KR1020130118051
申请日：2013-10-02
Applicant: 한국전자통신연구원
IPC: G10L21/02
CPC classification number: H04M9/082
Abstract: According to an embodiment of the present invention, a device which removes an acoustic echo signal caused by a long distance speaker signal is provided. An acoustic echo removing device comprises; a dispersion estimating unit which estimates the dispersion of a first voice signal of a short distance signal and the dispersion of a first noise signal of the short distance signal; a step size determining unit which determines the step size using the dispersion of the first voice signal and the dispersion of the first noise signal; an adaptive filter coefficient updating unit which updates an adaptive filter coefficient of an adaptive filter using the step size; and an acoustic echo removing unit which estimates an acoustic echo signal using the adaptive filter coefficient and removes the acoustic echo signal in a microphone input signal using the estimated acoustic echo signal which is produced through the estimation of the acoustic echo signal. The step size determining unit determines the step size so that a first residual signal becomes equal with the short distance speaker signal. The first residual signal is a signal which subtracts a first estimation acoustic echo signal which is the estimated acoustic echo signal from the microphone input signal.
Abstract translation: 根据本发明的实施例，提供一种去除由长距离扬声器信号引起的声学回波信号的装置。 声回波去除装置包括： 分散估计单元，其估计短距离信号的第一语音信号的分散和所述短距离信号的第一噪声信号的色散; 步长确定单元，其使用第一语音信号的色散和第一噪声信号的色散来确定步长; 自适应滤波器系数更新单元，其使用所述步长更新自适应滤波器的自适应滤波器系数; 声学回波消除单元，其使用自适应滤波器系数估计声学回波信号，并使用通过估计声学回波信号产生的估计的声学回波信号去除麦克风输入信号中的声学回波信号。 步长确定单元确定步长，使得第一残差信号与短距离扬声器信号相等。 第一残差信号是从麦克风输入信号中减去作为估计声回波信号的第一估计声回波信号的信号。
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Patent Agency Ranking
公开(公告)号：KR101269678B1
公开(公告)日：2013-05-30
申请号：KR1020090103409
申请日：2009-10-29
Applicant: 한국전자통신연구원
CPC classification number: H04L67/104 , H04L65/4076 , H04L67/1074 , H04L67/1091
Abstract: 본발명은 P2P 스트리밍프로그램을다른사용자와멀티미디어스트림을공유하기위한 P2P 통신을수행하는 P2P 엔진(engine) 부분및 P2P 통신으로수신한멀티미디어스트림을재생하는뷰어(viewer) 부분으로나누어, P2P 엔진부분은홈 네트워크등 사설망과인터넷등 공중망의접점에위치한네트워크장치에구현하고, 뷰어부분은사설망내 내부사용자단말에구현하는방식으로구성한 P2P 스트리밍시스템에관한것이다. 본발명의일 측면은, 사설망과공중망의접점(demarcation point)에위치하며, 다른사용자와멀티미디어스트림(multimedia stream)을공유하기위한 P2P(Peer-to-Peer) 통신을수행하는 P2P 로직(logic)부, 및상기멀티미디어스트림을상기사설망내 내부사용자단말에전달하는딜리버리(delivery)부를포함하는 P2P 스트리밍장치를제공한다. 본발명에따르면, 개별단말내에설치되던 P2P 엔진모듈이네트워크장치에구현됨으로써 Always-On 문제, Ownership 문제, Privacy 문제, Security 문제, QoS 제어문제가해결되는효과가있다.
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公开(公告)号：KR1020150136184A
公开(公告)日：2015-12-07
申请号：KR1020140063043
申请日：2014-05-26
Applicant: 한국전자통신연구원
IPC: H04L12/28
CPC classification number: H04L61/3025 , G06F17/30958 , H04L61/2007
Abstract: 본발명은 AS 구조기반인터-도메인라우팅(inter-domain routing)을위한방법및 장치에관한것이다. 본발명에따른인터도메인라우팅방법은, 소스호스트로부터수신된데이터패킷의목적지 IP 주소에대한경로정보를포워딩정보베이스(Forwarding Information Base: FIB)에서검색하는단계; 상기목적지 IP 주소에대응하는경로정보가검색되지않은경우에매핑시스템에상기목적지 IP 주소에대응하는도메인로케이터를요청하여획득하는단계; 및상기획득된도메인로케이터와상기소스호스트가존재하는도메인의라우팅정보를이용하여경로설정을수행하는단계를포함한다.
Abstract translation: 本发明涉及一种基于自治系统（AS）架构的域间路由选择方法和装置。 根据本发明，域间路由方法包括以下步骤：在转发信息库（FIB）中搜索从源主机接收的数据分组的目的地IP地址的路径信息; 向映射系统请求与目的IP地址相对应的域定位符，并且在不搜索与目的IP地址相对应的路径信息时获得相同的域定位符; 并通过使用获取的域定位器和在源主机所在的域上的路由信息来设置路径。
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公开(公告)号：KR1020130068051A
公开(公告)日：2013-06-25
申请号：KR1020110135214
申请日：2011-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04L41/083 , H04L45/7457
Abstract: PURPOSE: An identifier management device and an identifier management method thereof are provided to improve the searching speed and the searching performance of an identifier. CONSTITUTION: A storage unit(114) stores the location information of an identifier or the identifier of a communication terminal. A volume filter management unit(120) updates or registers a volume filter list indicating the storage space of the identifier by referring to the identifier. A control unit(111) controls the storage unit and the volume filter management unit. The control unit receives a volume filter list of an external identifier management device. The control unit updates or registers the volume filter list.
Abstract translation: 目的：提供标识符管理装置及其标识符管理方法，以提高标识符的搜索速度和搜索性能。 构成：存储单元（114）存储标识符的位置信息或通信终端的标识符。 体积过滤器管理单元（120）通过参照该标识符更新或者注册表示该标识符的存储空间的体积过滤器列表。 控制单元（111）控制存储单元和体积过滤器管理单元。 控制单元接收外部标识符管理装置的卷过滤器列表。 控制单元更新或注册音量过滤器列表。
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公开(公告)号：KR1020110046763A
公开(公告)日：2011-05-06
申请号：KR1020090103409
申请日：2009-10-29
Applicant: 한국전자통신연구원
CPC classification number: H04L67/104 , H04L65/4076 , H04L67/1074 , H04L67/1091
Abstract: PURPOSE: A P2P streaming apparatus, method thereof, and system configuring method are provided to resolve a problem with Always-on due to installing a P2P engine in a network device such as a router and a gateway. CONSTITUTION: A P2P logic unit(332) is located in a private network(320) and a demarcation point. The P2P logic unit performs P2P communication in order to share multimedia stream with the other user. A delivery unit(336) transfers the multimedia stream to an internal user terminal(340). The P2P logic unit receives a request about a first multimedia stream from the internal user terminal. The P2P logic unit receives a relay list of the user.
Abstract translation: 目的：提供一种P2P流式传输设备及其方法，以及系统配置方法，以解决由于在诸如路由器和网关之类的网络设备中安装P2P引擎而导致的Always-on问题。 构成：P2P逻辑单元（332）位于专用网（320）和分界点中。 P2P逻辑单元执行P2P通信，以便与其他用户共享多媒体流。 传送单元（336）将多媒体流传输到内部用户终端（340）。 P2P逻辑单元从内部用户终端接收关于第一多媒体流的请求。 P2P逻辑单元接收用户的中继列表。
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