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公开(公告)号：KR1020090025020A
公开(公告)日：2009-03-10
申请号：KR1020070090041
申请日：2007-09-05
Applicant: 한국전자통신연구원
CPC classification number: G06Q10/08 , G06Q10/087 , G06K17/00 , G06K19/0723
Abstract: A container freight loading or unloading management system using RFID and a method thereof are provided to automatically transfer a loading or unloading position of a container, thereby providing rapid vehicle pass in a port gate. A container freight loading or unloading management system includes freight information and recognizes the freight information of an RFID tag attached to a container(S510). The container freight loading or unloading management system transmits loading or unloading position information corresponding to the recognized freight information(S520). The container freight loading or unloading management system receives the transmitted loading or unloading position information and displays the loading or unloading position information on a display unit installed in the vehicle in which the container is mounted(S530).
Abstract translation: 提供使用RFID的集装箱货物装卸管理系统及其方法，以自动地传送容器的装载或卸载位置，从而在端口门中提供快速车辆通行。 集装箱货物装卸管理系统包括货运信息，并识别附着在集装箱上的RFID标签的货运信息（S510）。 集装箱货物装卸管理系统发送对应于认可货运信息的装卸位置信息（S520）。 集装箱货物装载/卸载管理系统接收传送的装载或卸载位置信息，并在安装在其中安装有集装箱的车辆中的显示单元上显示装载或卸载位置信息（S530）。
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公开(公告)号：KR100860415B1
公开(公告)日：2008-09-26
申请号：KR1020070071023
申请日：2007-07-16
Applicant: 한국전자통신연구원
IPC: G02F2/00
Abstract: 본 발명은 두 개의 광 변조기가 직렬로 연결되어 이루어진 광 변조 장치에서 광 출력 특성이 일정하게 유지되도록 직렬 연결된 두 변조기에 대한 바이어스 전압을 동시에 제어할 수 있는 광 변조 장치 및 그의 바이어스 제어 장치 및 방법에 관한 것으로서, 본 발명은 광원을 발생시키는 광원 발생기와, 상기 광원을 기준 클럭에 따라 온오프하여 일정 주기의 광 펄스 신호로 변조하는 제1 광 변조기와, 상기 제1 광 변조기에서 출력된 광 펄스 신호를 데이터에 따라 온오프시켜 데이터가 실린 광 신호로 변조하는 제2 광 변조기를 포함하는 광 변조 장치에서, 저주파의 제1,2 RF 신호를 제1,2 바이어스 전압과 함께 각각 제1,2 변조기에 인가하면서, 상기 제2 광 변조기의 광 출력 신호에서 상기 제1 RF 신호의 4차 고조파 성분을 검출하여, 상기 4차 고조파 성분의 전류값이 최소가 되도록 상기 제1,2 변조기의 바이어스 전압을 조정하는 것이다.
광 변조기, 바이어스 전압, 고조파, 전달 특성,-
公开(公告)号：KR100462407B1
公开(公告)日：2004-12-17
申请号：KR1020020068913
申请日：2002-11-07
Applicant: 한국전자통신연구원
IPC: H04B10/60
CPC classification number: H04B10/695 , H04B10/0799 , H04B10/69 , H04L1/0047 , H04L25/063
Abstract: Optical signals transmitted through an optical cable are converted into digital data of bits "1" and "0" on the basis of a reference voltage, and errors generated during transmission of the optical signals are corrected using Forward Error Correction (FEC). A method includes extracting numbers of occurrence of errors for bits "1" and "0" recovered through the FEC. Thereafter, the extracted numbers of occurrence of errors for bits "1" and "0" are compared with each other. A reference voltage used to judge levels of the signals to be level "1" or "0" is controlled if the numbers of occurrence of errors for bits "1" and "0" are not equal to each other. The current reference voltage is maintained if the numbers of occurrence of errors for bits "1" and "0" are rendered equal to each other.
Abstract translation: 通过光缆传输的光信号被转换成比特“1”的数字数据， 和“0” 基于参考电压，并且使用前向纠错（FEC）来校正光信号传输期间产生的误差。 一种方法包括提取比特“1”的错误发生次数。 和“0” 通过FEC恢复。 之后，提取比特“1”的错误出现次数。 和“0” 相互比较。 用于判断信号电平为电平“1”的参考电压 或“0” 如果用于比特“1”的错误出现的次数被控制， 和“0” 彼此不相等。 如果用于比特“1”的错误发生的次数保持当前基准电压， 和“0” 彼此相等。
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公开(公告)号：KR100407825B1
公开(公告)日：2003-12-01
申请号：KR1020020009739
申请日：2002-02-23
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: H01S3/302 , H01S3/06725 , H01S3/06758 , H01S3/094011 , H01S3/094096 , H01S3/1608 , H01S3/2375 , H01S2301/04
Abstract: A low-noise optical fiber amplifier for performing a long-distance optical transmission in a wavelength division multiplexing optical transmission apparatus is provided. This amplifier includes a first optical fiber amplifier having a pre-stage optical fiber, and a first coupler for supplying pump light to the pre-stage optical fiber; a dispersion compensating Raman amplifier (DCRA) connected to the first optical fiber amplifier and having a dispersion compensating optical fiber (DCF) that compensates for the dispersion accumulated in an optical line and generates a Raman gain, and a second coupler for supplying Raman pump light onto the DCF; and a second optical fiber amplifier connected to the DCRA, and including a post-stage optical fiber and a third coupler for supplying pump light onto the post-stage optical fiber. Accordingly, this optical fiber amplifier is used for terrestrial WDM optical transmission, and thus has remarkably low noise figure compared to the existing optical amplifiers. For this reason, the optical fiber amplifier is available in long-distance transmission, and can be used in optical networks.
Abstract translation: 提供一种用于在波分复用光传输设备中执行长距离光传输的低噪声光纤放大器。 该放大器包括具有前级光纤的第一光纤放大器和用于将泵浦光提供给前级光纤的第一耦合器; 色散补偿拉曼放大器（DCRA），连接到第一光纤放大器并且具有色散补偿光纤（DCF），该色散补偿光纤补偿光线中累积的色散并产生拉曼增益;以及第二耦合器，用于提供拉曼泵浦光 到DCF上; 以及连接到DCRA的第二光纤放大器，并且包括后级光纤和用于将泵浦光提供到后级光纤上的第三耦合器。 因此，该光纤放大器用于地面WDM光传输，因此与现有的光放大器相比具有显着低的噪声系数。 为此，光纤放大器可用于长距离传输，并可用于光网络。
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公开(公告)号：KR1020030070272A
公开(公告)日：2003-08-30
申请号：KR1020020009739
申请日：2002-02-23
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: H01S3/302 , H01S3/06725 , H01S3/06758 , H01S3/094011 , H01S3/094096 , H01S3/1608 , H01S3/2375 , H01S2301/04
Abstract: PURPOSE: A low noise dispersion compensating hybrid type optical fiber amplifier is provided to reduce largely the noise by coupling a DCRA(Dispersion Compensating Raman Amplifier) to an EDFA(Erbium Doped Fiber Amplifier) and installing an EDFA of short length at a front end thereof. CONSTITUTION: A low noise dispersion compensating hybrid type optical fiber amplifier includes the first optical fiber amplifier, a DCRA(12), and the second optical fiber amplifier. The first optical fiber amplifier includes a front end fiber(11) and the first coupler(114) for supplying the pumping light to the front end fiber. The DCRA is connected to the first optical fiber amplifier. The DCRA includes a DCF(Dispersion Compensating Fiber)(122) for generating a Raman gain and the second coupler(128) for supplying the Raman pumping light to the DCF. The second optical fiber amplifier is connected to the DCRA. The second optical fiber amplifier includes the third coupler for supplying the pumping light to a rear end fiber.
Abstract translation: 目的：提供一种低噪声色散补偿混合型光纤放大器，通过将DCRA（色散补偿拉曼放大器）耦合到EDFA（掺铒光纤放大器）并在其前端安装短长度的EDFA来大大减少噪声 。 构成：低噪声色散补偿混合型光纤放大器包括第一光纤放大器，DCRA（12）和第二光纤放大器。 第一光纤放大器包括用于向前端光纤提供泵浦光的前端光纤（11）和第一耦合器（114）。 DCRA连接到第一个光纤放大器。 DCRA包括用于产生拉曼增益的DCF（色散补偿光纤）（122）和用于向DCF提供拉曼泵浦光的第二耦合器（128）。 第二个光纤放大器连接到DCRA。 第二光纤放大器包括用于向后端光纤提供泵浦光的第三耦合器。
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Patent Agency Ranking
公开(公告)号：KR100381014B1
公开(公告)日：2003-04-26
申请号：KR1020000064731
申请日：2000-11-01
Applicant: 한국전자통신연구원
IPC: G02F1/00
CPC classification number: G02F1/0123 , H04B10/5051 , H04B10/50575 , H04B10/58
Abstract: An apparatus and a method for modulating the optical intensity, with the noises suppressed by using a linear optical modulator, are disclosed, so that the characteristics of signals transmitted from an optical communication system can be improved, and that the resolution of the measured physical quantities can be improved in an optical measuring instrument. The method is carried out in the following manner. That is, the magnitude of frequency is measured by utilizing pilot signals and electrical signals to transfer negatively fed-back signals to an optical intensity modulator. The phase is delayed by generating pilot signals so as to suppress an amplitude noise from the pilot signal caused by nonlinear modulation at the optical intensity modulator. A linear modulation is carried out on the phase-delayed signals and on optical signals from an external source to provide a linear component. The bias voltage is adjusted in accordance with the negatively fed-back signals, and an optical intensity modulation is carried out on the linearly modulated signals and on the added signals, the added signals having been formed by combining the data signals and the pilot signals.
Abstract translation: 公开了一种利用线性光学调制器来抑制噪声的光强度调制装置和方法，从而可以提高从光通信系统传输的信号的特性，并且测量的物理量的分辨率 可以在光学测量仪器中得到改进。 该方法按照以下方式进行。 即，通过利用导频信号和电信号来将负反馈信号传送到光强度调制器来测量频率的大小。 通过产生导频信号来延迟相位，以抑制由光强度调制器处的非线性调制引起的导频信号的幅度噪声。 对相位延迟的信号和来自外部信号源的光信号进行线性调制，以提供线性分量。 根据负反馈信号调节偏置电压，并且对线性调制信号和相加信号执行光强度调制，相加信号是通过组合数据信号和导频信号而形成的。
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公开(公告)号：KR1020170104690A
公开(公告)日：2017-09-18
申请号：KR1020160027041
申请日：2016-03-07
Applicant: 한국전자통신연구원
Abstract: 본발명은위치추적기술에관한것으로, 본발명의일 측면에따른라이프라인기반위치추적시스템은, 롤러에감겨있으며, 구조대원이사고현장에투입하면서가지고가는라이프라인기반의위치추적시스템에있어서, 상기라이프라인의끝단에설치되며, 자신의위치추적을통해상기라이프라인의이동거리를계산하는위치추적부; 상기라이프라인을통해상기위치추적부와통신하며, 상기위치추적부로부터전송되는위치추적정보및 이동거리정보를바탕으로상기구조대원의위치를표시하는모니터링부; 및상기위치추적부와의무선통신을통해각종신호를송수신하는무선통신부를포함한다.
Abstract translation: 本发明根据的是，生命线基于位置的系统中，与辊卷绕，营救基于圆生命线定位系统采取作为输入到现场，根据本发明的一个方面涉及的定位技术， 位置追踪单元，其安装在救生索的一端并通过其自身的位置追踪来计算救生索的移动距离; 监测单元，用于显示九个万亿韩元的经由生命线与定位单元在通信发送的跟踪信息，行驶距离信息的基础上的位置，并且从位置跟踪单元; 以及无线通信单元，用于通过与位置跟踪单元的无线通信发送/接收各种信号。
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公开(公告)号：KR101738698B1
公开(公告)日：2017-05-23
申请号：KR1020110147678
申请日：2011-12-30
Applicant: 한국전자통신연구원
Abstract: 파장분할다중화방식이적용된유무선융합네트워크및 신호전송방법이개시된다. 유무선융합네트워크에서상기유선네트워크는광 회선단말기(OLT)와광 네트워크유닛(ONU)를포함하고, 상기무선네트워크는파장분할다중화방식에따라공공무선인터페이스(CPRI)를통해광 신호를송수신하는무선장비제어기(REC)와무선장비(RE)를포함한다.
Abstract translation: 公开了应用波分复用方案的有线/无线汇聚网络和信号传输方法。 该有线网络包括光线路终端（OLT）的固定移动融合网络中wagwang网络单元（ONU），所述无线网络是无线装置时，控制器，用于发送和通过公共无线电接口（CPRI）接收光信号根据波分复用 （REC）和无线电设备（RE）。
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公开(公告)号：KR1020160123137A
公开(公告)日：2016-10-25
申请号：KR1020150053297
申请日：2015-04-15
Applicant: 한국전자통신연구원
IPC: H04B10/071 , H04B10/50
CPC classification number: H04B10/071
Abstract: 광선로감시장치를위한광원구동장치및 방법이개시된다. 일양상에따른광선로감시장치를위한광원구동장치는, 양극(bipolar) 코드감시신호에대응하는양극형태의감시광을출력하는레이저부와, 광선로로부터수신된감시광의반사광을전기신호로변환하는광수신부와, 변환된전기신호에서 DC 오프셋성분을제거하는 DC 제거부를포함할수 있다.
Abstract translation: 一种用于驱动光纤链路监视装置的光源的装置和方法。 用于驱动光纤链路监视装置的光源的装置包括被配置为输出对应于双极码探测信号的探测光的激光部分; 光接收器，被配置为将在双极探测光传输之后从光纤链路返回的反射光转换成电信号; 以及直流（DC）消除器，被配置为从由光接收器产生的电信号中去除DC偏移分量。
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公开(公告)号：KR1020150128433A
公开(公告)日：2015-11-18
申请号：KR1020140055808
申请日：2014-05-09
CPC classification number: G01M11/3145 , G01M11/31 , H04B10/071
Abstract: 광선로분할감시장치및 방법이개시된다. 광선로감시장치는광선로의감시시간구간을분할한측정시간구간들의개수에따라감시광을반복하여광선로에출력하는감시광송신부; 광선로에서피드백된 감시광을수신하고, 감시광별로각각다른측정시간구간에따라수신한감시광을측정하여저장매체에저장하는감시광수신부; 및저장매체에저장된감시광의측정결과를기초로광선로의상태를감시하는광선로감시부를포함할수 있다.
Abstract translation: 公开了一种部分地监视光纤的装置和方法。 光纤监视装置包括：监视光接收单元，用于根据测量时间段的数量重复地向光纤输出监视光，分割光纤的监视时间段; 监视光接收单元，用于接收来自光纤的监视光反馈，通过监视光测量根据每个不同的测量时间段接收到的监视光，并将监视光存储到存储介质; 以及光纤监视单元，用于基于存储在存储介质中的监视光的测量结果监视光纤的状态。
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