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公开(公告)号：KR100478508B1
公开(公告)日：2005-03-28
申请号：KR1020020051387
申请日：2002-08-29
Applicant: 한국전자통신연구원
IPC: G02B6/293
CPC classification number: G02B6/2932 , G02B6/02057 , G02B6/29383
Abstract: 본 발명은 2개의 광분기결합장치와 1개의 광섬유 브라그 격자를 이용하여 파장분할다중화 기반의 광가입자망의 가입자 노드에서 광신호를 삽입/추출하는 장치에 관한 것이다. 본 발명은, 파장분할다중화 기반의 광가입자망에서 사용 가능한 광신호 삽입/추출장치에 있어서, 파장분할다중화된 다파장의 광신호를 입사하고 상기 입사한 다파장의 광신호 중 설정된 결합비에 상응하는 광신호를 분기하여 출력하며, 상기 출력된 파장의 광 신호 중 반사되어 되돌아오는 특정 파장의 광신호를 입사하고 상기 입사한 특정 파장의 광신호를 분기하여 추출하는 광입력 및 추출수단; 상기 광입력 및 추출수단으로부터 출력되는 다파장의 광신호 중 미리 설정된 자신의 공진파장과 일치하는 파장의 광신호를 상기 광입력 및 추출수단으로 다시 반사시키고, 나머지 파장의 광신호는 투과시키는 광투과 및 반사수단; 및 상기 광투과 및 반사수단을 투과한 다파장의 광신호를 입사하고 상기 입사된 다파장의 광신호 중 설정된 결합비에 상응하는 광신호를 분기하여 출력하며, 상기 추출된 파장의 광신호와 동일 파장대역의 광신호를 삽입하는 광삽입 및 출력수단을 구비한다.
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公开(公告)号：KR100419608B1
公开(公告)日：2004-02-25
申请号：KR1020010059006
申请日：2001-09-24
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/294
Abstract: PURPOSE: A channel equalization apparatus for a WDM(Wavelength Division Multiplexing) optical communication system and a method therefor are provided to actively execute the channel equalization in an intermediate node requested for exchanging and transmitting each WDM channel signal. CONSTITUTION: An optical fiber(150) without a jacket receives a WDM optical signal. A plurality of Bragg grids(141) are formed in series in the optical fiber(150) for reflecting WDM optical signals with the same wavelength using inter-different resonance wavelengths. A plurality of electric signal generators(200) generate an electric signal with a frequency and random amplitude identical to each resonance wavelength of a plurality of the Bragg grids(141), respectively. An electric signal mixer(190) mixes the electric signals generated in a plurality of the electric signal generators(200). A piezoelectric transducer(180) transduces the electric signal outputted from the electric signal mixer(190) into an elastic acoustic wave. A horn glass tube(170) gathers the elastic acoustic waves generated in the piezoelectric transducer(180), and provides the gathered elastic acoustic waves to one end of the optical fiber(150). An acoustic damper(140) is installed at the other end of the optical fiber(150) for damping the received elastic acoustic wave. A connection portion(160) outputs the WDM optical signal reflected by a plurality of the Bragg grids(141) as an equalized signal.
Abstract translation: 目的：提供一种用于WDM（波分复用）光通信系统的信道均衡装置及其方法，用于在请求交换和发送每个WDM信道信号的中间节点中主动执行信道均衡。 构成：没有护套的光纤（150）接收WDM光信号。 在光纤（150）中串联形成多个布拉格栅格（141），用于使用不同的谐振波长反射具有相同波长的WDM光信号。 多个电信号发生器（200）分别产生具有与多个布拉格栅格（141）的每个谐振波长相同的频率和随机振幅的电信号。 电信号混合器（190）混合在多个电信号发生器（200）中产生的电信号。 压电传感器（180）将从电信号混合器（190）输出的电信号转换成弹性声波。 喇叭形玻璃管（170）聚集在压电换能器（180）中产生的弹性声波，并将聚集的弹性声波提供给光纤（150）的一端。 消声器（140）安装在光纤（150）的另一端，用于衰减所接收的弹性声波。 连接部分（160）输出由多个布拉格网格（141）反射的WDM光信号作为均衡信号。
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93.发明公开
公开(公告)号：KR1020030010969A
公开(公告)日：2003-02-06
申请号：KR1020010045673
申请日：2001-07-28
IPC: H04B10/2581
CPC classification number: H04J14/0247 , H04J14/0283
Abstract: PURPOSE: A device of a wavelength-shared type ONIC(Optical Network Interface Card) of a token ring network using DWDM(Dense Wavelength Division Multiplexing) and a method thereof are provided to allow ONICs sharing wavelength to control wavelength use time and share wavelength receiving, without collision between the ONICs, so as to extend subscriber channels and increase a bandwidth utilization rate. CONSTITUTION: A wavelength token management module(307) manages token information classifying a plurality of ONICs, to decide the use sequence of identical wavelength of optical signals. A jumbo packet frame generation module(313) converts data to be transmitted into a jumbo packet frame composed of at least one packet. A jumbo frame control module(309) receives a size level of the generated jumbo packet frame from the jumbo packet frame generation module(313) and receives the token information of an ONIC which is to use the identical wavelength of optical signals next from the wavelength token management module(307). A jumbo preamble frame generation module(311) receives the information on the packet size and the token information of the ONIC which is to use the identical wavelength of optical signals next from the jumbo frame control module(309), to generate a jumbo preamble frame. And optical transmission and receiving modules(101,109) receive the jumbo preamble frame and the jumbo packet frame respectively from the jumbo preamble frame generation module(311) and a jumbo packet frame generation module(313), to convert the received frame into predetermined wavelength of optical signals and transmit the converted signals to the network.
Abstract translation: 目的：提供使用DWDM（密集波分复用）的令牌环网络的波长共享型ONIC（光网络接口卡）的设备及其方法，以允许ONIC共享波长来控制波长使用时间并共享波长接收 在ONIC之间没有冲突，从而扩展用户信道并提高带宽利用率。 构成：波长令牌管理模块（307）管理对多个ONIC进行分类的令牌信息，以决定相同波长的光信号的使用顺序。 巨型分组帧生成模块（313）将要发送的数据转换成由至少一个分组组成的巨型分组帧。 巨型帧控制模块（309）从巨型分组帧生成模块（313）接收所生成的巨型分组帧的大小级别，并接收使用与波长相同的光信号波长相同的ONIC的令牌信息 令牌管理模块（307）。 巨型前同步码帧生成模块（311）从巨型帧控制模块（309）接收关于使用相同波长的光信号的分组大小和ONIC的令牌信息的信息，以生成巨型前导码帧 。 并且光发送和接收模块（101,109）分别从巨型前导码帧生成模块（311）和巨型分组帧生成模块（313）接收巨型前导帧和巨型分组帧，以将接收的帧转换成预定波长的 光信号并将转换的信号传送到网络。
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公开(公告)号：KR102025199B1
公开(公告)日：2019-11-04
申请号：KR1020160135166
申请日：2016-10-18
Applicant: 한국전자통신연구원
IPC: H04B10/2575 , H04B10/2507 , H04B7/26
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公开(公告)号：KR1020170132682A
公开(公告)日：2017-12-04
申请号：KR1020170063567
申请日：2017-05-23
Applicant: 한국전자통신연구원
IPC: H04N19/139 , H04N19/51 , H04N19/124 , H04N19/117 , H04N19/91
CPC classification number: H04N19/117 , H04N19/124 , H04N19/139 , H04N19/51 , H04N19/91
Abstract: 본발명은움직임벡터예측을이용하여움직임보상을수행하는방법에관한것이다. 이를위한영상복호화방법은, 현재블록의화면간 예측방향에따라, 복수의움직임벡터후보리스트를생성하는단계, 상기복수의움직임벡터후보리스트를이용하여, 상기현재블록에대한복수의움직임벡터를유도하는단계, 상기복수의움직임벡터를이용하여, 상기현재블록에대한복수의예측블록을결정하는단계, 및상기복수의예측블록을기초로, 상기현재블록에대한최종예측블록을획득하는단계를포함할수 있다.
Abstract translation: 本发明涉及一种使用运动矢量预测来执行运动补偿的方法。 该运动矢量解码方法包括：根据当前块的图片间预测方向来生成多个运动矢量候选者列表;使用多个运动矢量候选者列表来导出当前块的多个运动矢量; 使用多个运动矢量确定当前块的多个预测块，并基于多个预测块获得当前块的最终预测块 你可以。
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Patent Agency Ranking
公开(公告)号：KR1020160092411A
公开(公告)日：2016-08-04
申请号：KR1020150013001
申请日：2015-01-27
Applicant: 한국전자통신연구원
IPC: H04B10/07 , H04B10/2575
CPC classification number: H04B10/07953 , H04B10/25759 , H04B10/50572 , H04B10/50575 , H04B10/564 , H04B10/07 , H04B10/2575 , H04B2210/07
Abstract: 본발명에따른아날로그광링크감시제어장치광무선(Radio over Fiber, RoF) 기반의모바일프론트홀시스템의광섬유선로를감시한다. 광링크감시제어장치는광섬유선로를통과하는광신호를감시하는광신호감시부및 광신호감시결과에기초하여광신호를제어하는시스템제어부를포함한다. 광신호감시부는광신호에서추출된전기신호로부터평균광파워, 캐리어대 신호잡음비(Carrier to Noise Ratio, CNR) 및비선형성분의크기를검출한다. 그리고, 검출된평균광파워, CNR 및비선형성분에기초하여광신호를제어한다.
Abstract translation: 根据本发明，模拟光链路监视和控制设备监视基于无线光纤（RoF）的移动前端整个系统的光纤轨道。 光链路监视和控制设备包括：光信号监控单元，监视通过光纤通道的光信号; 以及系统控制单元，其基于光信号监视结果来控制光信号。 光信号监控单元从所提取的电信号中检测平均光功率，载波噪声比（CNR）和非线性分量。 基于检测到的平均光功率，CNR和非线性分量，本发明控制光信号。
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公开(公告)号：KR1020160035925A
公开(公告)日：2016-04-01
申请号：KR1020140127902
申请日：2014-09-24
Applicant: 한국전자통신연구원
CPC classification number: H04J14/0298 , H04L27/2602 , H04L27/2613 , H04L27/2655 , H04L27/2697
Abstract: 광가입자망에서의직교주파수분할다중신호전송방법및 그장치가개시된다. 본발명의일 실시예에따른광가입자망에서의직교주파수분할다중신호전송방법은수동형광가입자망의매체접근제어계층으로부터직교주파수분할다중방식기반의수동형광가입자망의물리계층으로전달되는매체접근제어프레임을이용하여매체접근제어프레임을물리레벨프리앰블을포함한직교주파수분할다중프레임으로변환하는단계와, 변환된직교주파수분할다중프레임을전송하는단계를포함한다.
Abstract translation: 公开了在到家庭（FTTH）网络的光纤中使用的正交频分复用（OFDM）信号发送方法及其装置。 根据本发明的实施例，正交频分多路复用信号发送方法包括以下步骤：使用从手动FTTH网络的媒体接入控制层级发送到基于OFDM的物理层级的媒体接入控制帧 手动FTTH网络，将媒体接入控制帧转换为包括物理级别前同步码的OFDM帧; 以及发射所转换的OFDM帧。
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公开(公告)号：KR1020140100163A
公开(公告)日：2014-08-14
申请号：KR1020130013087
申请日：2013-02-05
Applicant: 한국전자통신연구원
IPC: H04J14/02
CPC classification number: H04J14/0227 , H04J3/1694 , H04J14/0246 , H04J14/025
Abstract: The present invention relates to a method for selecting a wavelength of an optical network terminal in a passive optical network, comprising: a usage wavelength candidate selecting step where a prestored basic wavelength is selected as a usage wavelength candidate or a wavelength is changed and the changed wavelength is selected as a usage wavelength candidate in a case that a predetermined wavelength changing condition is satisfied; a downward synchronizing step where frame synchronization is obtained for a downward signal having the same wavelength as the selected usage wavelength candidate; and a terminal registering step where a registration request message is transmitted to an optical line terminal (OLT) which has transmitted the downward signal in the case that the frame synchronization is obtained, and allocating the usage wavelength candidate as a usage wavelength used in communications with the optical line terminal and registering the usage wavelength in the optical line terminal in a case that a registration admission message is received from the optical line terminal.
Abstract translation: 本发明涉及一种用于选择无源光网络中的光网络终端的波长的方法，包括：使用波长候选选择步骤，其中预先存储的基本波长被选择为使用波长候选或波长改变并且改变 在满足预定波长变化条件的情况下，选择波长作为使用波长候选; 向下同步步骤，对于与所选择的使用波长候选具有相同波长的向下信号获得帧同步; 以及终端登记步骤，其中在获得帧同步的情况下向已经发送了向下信号的光线路终端（OLT）发送注册请求消息，并且将使用波长候选分配为与通信中使用的使用波长 在从光线路终端接收到登记许可消息的情况下，将光线路终端注册到光线路终端中的使用波长。
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公开(公告)号：KR1020140072231A
公开(公告)日：2014-06-13
申请号：KR1020120134287
申请日：2012-11-26
Applicant: 한국전자통신연구원
IPC: H04N19/50 , H04N19/176 , H04N19/119 , H04N19/147 , H04N19/103 , H04N19/159
CPC classification number: H04N19/00569 , H04N19/103 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/50 , H04N19/96 , H04N19/159
Abstract: The present invention provides a method of determining a fast prediction mode of a video encoder capable of selectively terminating or omitting a splitting or pruning process based on a probability distribution of rate-distortion values to remove unnecessary calculation of the encoder, so that the encoder is enabled to determine the prediction at high speeds. The present invention includes: a method which can adaptively change termination and omission determination references of the splitting and pruning processes according to characteristics of an input video. When the method provided by the present invention is used, it is possible to set the reliability of termination and omission determination of the splitting and pruning processes, so that the trade-off between the decreased calculation quantity of the encoder and the deterioration of a video quality can be controlled.
Abstract translation: 本发明提供了一种确定视频编码器的快速预测模式的方法，该视频编码器能够基于速率失真值的概率分布选择性地终止或省略分割或修剪过程，以消除编码器的不必要的计算，从而编码器 能够在高速度下确定预测。 本发明包括：根据输入视频的特征，可以自适应地改变分割和修剪过程的终止和省略确定参考的方法。 当使用本发明提供的方法时，可以设定分割和修剪过程的终止和省略确定的可靠性，使得编码器的计算量减少与视频的劣化之间的折衷 质量可以控制。
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公开(公告)号：KR101310455B1
公开(公告)日：2013-09-24
申请号：KR1020090120900
申请日：2009-12-08
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/43
CPC classification number: H04J14/0282 , H04B10/2587 , H04B10/506
Abstract: 본 발명은 씨앗 광원으로부터 수신한 씨앗광을 파장 역다중화 하는 제1 파장 다중화 장치, 및 적어도 하나의 가입자측 단말 장치로부터 상기 파장 역다중화된 씨앗광을 이용하여 생성된 상향 광신호를 수신하여 파장 역다중화 하는 제2 파장 다중화 장치를 포함하는 국사용 광장치(OLT)를 제안한다.
파장분할 다중화, 수동형 광가입자망, 씨앗 광원
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