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公开(公告)号：KR1020130126808A
公开(公告)日：2013-11-21
申请号：KR1020120042858
申请日：2012-04-24
Applicant: 한국전자통신연구원
CPC classification number: H04J14/0212 , H04J14/022 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0265 , H04J14/0268 , H04J14/0282 , H04J14/0283 , H04J14/0286
Abstract: An optical line terminal of a passive optical network system senses the failures in an optical path comprising ring-shaped single optical fiber cores and divides the optical path into a right path and a left path based on the failure position. The optical line terminal outputs a plurality of downstream optical wavelength signals, which is transmitted to one or more optical terminals of each group according to failure position, to one or more optical terminals of each group by demultiplexing the downstream optical wavelength signals with the optical wavelength signals of the right path and the left path.
Abstract translation: 无源光网络系统的光线路终端感测包括环形单个光纤芯的光路中的故障，并且基于故障位置将光路划分为右路径和左路径。 光线路终端根据故障位置将多个下行光波长信号发送到各组的一个或多个光学终端，通过对光波长的下行光波长信号进行解复用，将每个组的一个或多个光学终端 右路径和左路径的信号。
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公开(公告)号：KR101310906B1
公开(公告)日：2013-09-25
申请号：KR1020090116855
申请日：2009-11-30
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/00
CPC classification number: H04Q11/0067 , H04Q2011/0064
Abstract: 수동 광 가입자 망의 동적 대역폭 할당 장치는 동적으로 대역폭을 할당하기 위해 동적 대역폭 할당 장치와 연결된 적어도 하나의 가입자 단말의 각T-CONT 큐에 대한 보장 협약 정보를 검출한다. 동적 대역폭 할당 장치는 적어도 하나의 가입자 단말의 각 T-CONT큐의 버퍼 크기에 따라 큐 임계값을 설정하고, 보장 협약 정보와 큐 임계값을 이용하여 적어도 하나의 가입자 단말의 SLA 파라미터를 각각 계산한다. 동적 대역폭 할당 장치는 적어도 하나의 가입자 단말의 각 SLA 파라미터를 이용하여 각 가입자 단말의 매 프레임 별 대역폭을 할당한다.
동적 대역폭, 능동 광 가입자망, 수동 광 가입자망-
公开(公告)号：KR101294516B1
公开(公告)日：2013-08-07
申请号：KR1020110082209
申请日：2011-08-18
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/60
Abstract: 무음 구간이 포함된 광 신호로부터 패킷 데이터 및 클럭을 복원하는 광 회선 단말이 개시된다. 상기 광 회성 단말은 적어도 하나 이상의 광 네트워크 유닛으로부터 패킷 데이터 및 클럭을 수신할 수 있다. 광 네트워크 유닛이 패킷 데이터를 전송하지 않는 무음 구간에도, 본 발명에서 제안된 광 회선 단말은 성공적으로 클럭을 복구할 수 있다.
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公开(公告)号：KR1020130037568A
公开(公告)日：2013-04-16
申请号：KR1020110102033
申请日：2011-10-06
Applicant: 한국전자통신연구원
IPC: H04B10/00
CPC classification number: G02B6/4246 , H04J14/0232 , H04J14/0252
Abstract: PURPOSE: An OLT(Optical Line Terminal) in a TDMA(Time Division Multiple Access)-PON(Passive Optical Network) and an optical signal processing method thereof are provided to minimize technical difficulties and to satisfy a performance demand of a system in the OLT. CONSTITUTION: A first WDM(Wavelength Division Multiplexing) optical filter(116) reflects upward traffic optical signals inputted from one or more subscriber devices. The first WDM optical filter outputs a downward traffic optical signal of a single wavelength through the subscriber device. A plurality of second WDM optical filters(1211~121n-1) outputs the upward traffic optical signal reflected by the first WDM optical filter. The first WDM optical filter and the second WDM optical filter are formed in one WDM filter array. [Reference numerals] (118) Serialization unit; (125_1,125_2,125_n-1,125_n) Parallelization unit;
Abstract translation: 目的：提供TDMA（时分多址）-PON（无源光网络）中的OLT（Optical Line Terminal，光线路终端）及其光信号处理方法，以最小化技术难题，满足OLT中系统的性能需求 。 构成：第一WDM（波分复用）滤光器（116）反射从一个或多个用户设备输入的上行业务光信号。 第一个WDM光滤波器通过用户设备输出单个波长的向下流量光信号。 多个第二WDM光滤波器（1211〜121n-1）输出由第一WDM光滤波器反射的上行业务光信号。 第一WDM光滤波器和第二WDM滤光器形成在一个WDM滤波器阵列中。 （附图标记）（118）序列化单元; （125_1,125_2,125_n-1,125_n）并联单元;
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公开(公告)号：KR1020130031565A
公开(公告)日：2013-03-29
申请号：KR1020110095219
申请日：2011-09-21
Applicant: 한국전자통신연구원
IPC: G02B6/42
CPC classification number: H04B10/40 , G02B6/4214 , G02B6/4215 , G02B6/4256 , G02B6/4271 , G02B6/4274
Abstract: PURPOSE: A both directions optical transceiver is provided to integrate an optical transmitter and an optical receiver as one apparatus, thereby have a decreased effect of the manufacturing cost and reduce the noise by including a cooling function. CONSTITUTION: The light transmitted from an optical fiber(200) to a both directions optical transceiver(100) is converted to a first balanced light through a first lens(120), and it is incoming to a second lens(160) passing the optical fiber through a filter(150), and induced to the filter. A third lens(170) converts the light reflected from the filter to a second electric signal by a light receiving element(141), amplified by a preamplifier(143) and it is outputted to the outside. The elements of a transmission unit(110) is formed at an upper part of a thermo-electric cooler(TEC), improves the stability and reliability. A transmitter and a receiver is comprised in one piece, thereby reduce the cost. [Reference numerals] (AA) First direction
Abstract translation: 目的：提供双向光收发器以将光发射机和光接收机集成为一个装置，由此具有降低的制造成本的影响并且通过包括冷却功能来降低噪声。 构成：将从光纤（200）传输到双向光收发器（100）的光通过第一透镜（120）转换成第一平衡光，并且其进入通过光学器件的第二透镜（160） 纤维通过过滤器（150），并诱导到过滤器。 第三透镜（170）通过光接收元件（141）将从滤光器反射的光转换成第二电信号，由前置放大器（143）放大并输出到外部。 传动单元（110）的元件形成在热电冷却器（TEC）的上部，提高了稳定性和可靠性。 发射机和接收机组成一体，从而降低成本。 （附图标记）（AA）第一方向
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Patent Agency Ranking
公开(公告)号：KR101242417B1
公开(公告)日：2013-03-12
申请号：KR1020090116952
申请日：2009-11-30
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/50
Abstract: 수동형 광 가입자 망에서의 광 송신 장치에 관한 것으로, 출력 광신호를 증폭하는 광 증폭기; 및 모니터링 다이오드로부터 획득되는 광 출력 세기 정보에 기초하여, 상기 광 증폭기의 증폭 이득을 제어하는 증폭 제어부;를 포함하는 것을 특징으로 하는 수동형 광 가입자 망에서의 광 송신 장치에 의해 병렬적으로 광 신호를 증폭하는 구조를 제안함으로써 보다 센 광신호를 출력하여 가입자 수를 증가시킬 수 있는 효과가 있다.
PON, 광증폭, 포토다이오드, OLT-
公开(公告)号：KR1020120071099A
公开(公告)日：2012-07-02
申请号：KR1020100132701
申请日：2010-12-22
Applicant: 한국전자통신연구원
IPC: H04B10/2581
CPC classification number: H04B10/272 , H04L12/4633
Abstract: PURPOSE: An optical line terminal device for controlling power and an optical network end device are provided to include traffic monitoring units for monitoring uplink and downlink traffics of the optical line terminal. CONSTITUTION: A MAC(Media Access Control) block(120) converts port IDs and Ethernet packets into a downlink frame or converts an uplink frame into the port IDs and the Ethernet packets. A traffic monitoring unit(123) of the MAC block supplies ID information of an ONT(Optical Network Terminal) or an ONU(Optical Network Unit). A CPU(Central Processing Unit)(130) generates a control frame according to ID information.
Abstract translation: 目的：提供一种用于控制电力的光线路终端设备和光网络终端设备，以包括用于监视光线路终端的上行链路和下行链路业务的业务监控单元。 构成：MAC（媒体访问控制）块（120）将端口ID和以太网数据包转换为下行链路帧，或将上行链路帧转换为端口ID和以太网数据包。 MAC块的流量监控单元（123）提供ONT（Optical Network Terminal）或ONU（Optical Network Unit，光网络单元）的ID信息。 CPU（中央处理单元）（130）根据ID信息生成控制帧。
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公开(公告)号：KR1020110060381A
公开(公告)日：2011-06-08
申请号：KR1020090116952
申请日：2009-11-30
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/50
CPC classification number: H04B10/564 , H04B10/0799 , H04B10/503
Abstract: PURPOSE: An optical transmission equipment in a PON is provided to amplify an optical signal in parallel. CONSTITUTION: An optical transmitting apparatus in a PON(Passive Optical Network) includes optical amplification units(320-1~320-N) and an amplification controller(300). The optical amplification unit amplifies an output light signal. The amplification controller controls the amplification gain of the optical amplification unit based on optical output strength information obtained from a monitoring diode. The measurement of the intensity of an optical signal and the adjustment of output beam power operate through the monitoring diode of DL(DownLink) optical transmitters(210-1~210-N).
Abstract translation: 目的：提供PON中的光传输设备，并行放大光信号。 构成：PON（Optical Passive Optical Network，无源光网络）中的光发送装置包括光放大单元（320-1〜320-N）和放大控制器（300）。 光放大单元放大输出光信号。 放大控制器基于从监视二极管获得的光输出强度信息来控制光放大单元的放大增益。 通过DL（DownLink）光发射机（210-1〜210-N）的监控二极管测量光信号的强度和输出光束功率的调整。
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公开(公告)号：KR1020110060309A
公开(公告)日：2011-06-08
申请号：KR1020090116854
申请日：2009-11-30
Applicant: 한국전자통신연구원
Inventor： 김종덕
CPC classification number: H04Q11/0066 , H04B10/60 , H04Q11/04
Abstract: PURPOSE: A sensing signal generator for a burst mode packet signal is provided to operate on the basis of a burst packet sensing signal and an initialization control signal and to obtain high-speed response characteristics. CONSTITUTION: A delay unit(41) delays a data signal corresponding to a burst mode packet signal for a predetermined time. A comparison unit(42) compares the data signal and an applied reference signal. The comparison unit outputs a sensing signal in communication with the reception start time and reception end time of the burst mode packet signal. A latch unit(44) outputs a timing sensing signal including timing information about the start and end of the burst mode packet signal.
Abstract translation: 目的：提供用于突发模式分组信号的感测信号发生器，用于基于突发分组感测信号和初始化控制信号进行操作并获得高速响应特性。 构成：延迟单元（41）将对应于突发模式分组信号的数据信号延迟预定时间。 比较单元（42）比较数据信号和施加的参考信号。 比较单元输出与突发模式分组信号的接收开始时间和接收结束时间通信的感测信号。 锁存单元（44）输出包括关于突发模式分组信号的开始和结束的定时信息的定时感测信号。
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公开(公告)号：KR1020110060305A
公开(公告)日：2011-06-08
申请号：KR1020090116850
申请日：2009-11-30
Applicant: 한국전자통신연구원
IPC: H04B10/60 , H04B10/2581
CPC classification number: H04B10/69 , H04B10/6933
Abstract: PURPOSE: A burst mode receiver and a timing control method thereof are provided to perform differential conversion of burst packets having wide area input strength in the quick and exact timing. CONSTITUTION: A differential signal converter(200) converts the single voltage signal of a transimpedance amplifier(100) into a differential information signal. A gain controller(400) creates a gain control signal for the control of the gain value of the transimpedance amplifier. A burst detection unit(500) creates a burst sensing signal for the start timing of each burst packet. A controller(600) creates a control signal through an external MAC reset signal, the gain control signal, and the burst sensing signal.
Abstract translation: 目的：提供一种突发模式接收机及其定时控制方法，以在快速准确的定时进行具有广域输入强度的突发分组的差分转换。 构成：差分信号转换器（200）将跨阻抗放大器（100）的单电压信号转换成差分信息信号。 增益控制器（400）创建用于控制跨阻抗放大器的增益值的增益控制信号。 突发检测单元（500）创建用于每个突发分组的开始定时的突发感测信号。 控制器（600）通过外部MAC复位信号，增益控制信号和突发感测信号产生控制信号。
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