公开(公告)号：US20180307181A1

公开(公告)日：2018-10-25

申请号：US15843830

申请日：2017-12-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mun Seob LEE ,  Gi Hyeon MIN ,  Byung-Tak LEE ,  Seihyoung LEE ,  Dongsoo LEE

IPC: G03H1/04 ,  G03H1/06

CPC classification number: G03H1/0443 ,  G03H1/06 ,  G03H2001/0447 ,  G03H2001/0452 ,  G03H2223/22 ,  G03H2226/13

Abstract: A hologram image acquiring apparatus may include: a linear polarizer that filters incident light reflected by an object into a polarized component of a specific angle; a spherical lens that partially converts light that is incident through the linear polarizer to a spherical waveform; and a phase shifter that converts a part of the light incident through the spherical lens to a plane waveform having a different phase per pixel unit.

公开(公告)号：US20160277100A1

公开(公告)日：2016-09-22

申请号：US15070390

申请日：2016-03-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yongseok YOO ,  Sung Chang KIM ,  Dongsoo LEE

IPC: H04B10/071 ,  H04Q11/00 ,  H04B10/079

CPC classification number: H04B10/071 ,  H04B10/272 ,  H04Q11/0067 ,  H04Q2011/0083

Abstract: Provided is an apparatus for testing an optical fiber in an optical distribution network, the apparatus being capable of synthetically testing an optical fiber by using a plurality of optical pulse signals. The apparatus includes a transmitter configured to transmit a first and a second optical pulse signal to an optical fiber connected to optical network units (ONU) through a coupler, and a receiver configured to receive, from the coupler, a first received optical pulse signal and a second received optical pulse signal The apparatus includes an analog to digital (A/D) converter configured to generate first and second received optical signals according to received intensities of the first and second received optical pulse signals to convert the first and second received optical signals into first and second digital received optical data, and a processor configured to process the first and second digital received optical data to generate a scale domain response to perform image visualization and optical fiber state analysis to monitor the optical fiber.

Abstract translation: 提供了一种用于在光分配网络中测试光纤的装置，该装置能够通过使用多个光脉冲信号来合成地测试光纤。 该装置包括：发射机，被配置为通过耦合器向连接到光网络单元（ONU）的光纤发送第一和第二光脉冲信号;以及接收机，被配置为从耦合器接收第一接收的光脉冲信号和 第二接收光脉冲信号该装置包括模数（A / D）转换器，被配置为根据第一和第二接收光脉冲信号的接收强度产生第一和第二接收光信号，以将第一和第二接收光信号 进入第一和第二数字接收光学数据，以及处理器，被配置为处理第一和第二数字接收光学数据以产生比例域响应以执行图像可视化和光纤状态分析以监视光纤。

公开(公告)号：US20190146296A1

公开(公告)日：2019-05-16

申请号：US15918718

申请日：2018-03-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： CHAN IL YEO ,  Dong Hoon SON ,  Hyun Seo KANG ,  Keo-Sik KIM ,  Kyeeun KIM ,  Sung Chang KIM ,  Ji Hyoung RYU ,  Gi Hyeon MIN ,  Si Woong PARK ,  Hyoungjun PARK ,  Dongsoo LEE ,  Young Soon HEO

IPC: G02F1/163 ,  G02F1/133 ,  G02F1/157 ,  G02F1/1335

Abstract: Disclosed is a variable optical attenuator. The variable optical attenuator includes an electrochromic device having a reflective property or a transflective property, a lens configured to convert input light to focused light or collimated light and input the focused light or the collimated light to the electrochromic device, and an outputter configured to output light reflected from the electrochromic device, in which the electrochromic device is configured to attenuate an intensity of the input light by controlling a reflectivity and a transmissivity of the input light based on an element included in the electrochromic device and a voltage to be applied to the electrochromic device.

公开(公告)号：US20190128733A1

公开(公告)日：2019-05-02

申请号：US15870012

申请日：2018-01-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Seo KANG ,  Kyeeun KIM ,  Keo-Sik KIM ,  Sung Chang KIM ,  Ji Hyoung RYU ,  Gi Hyeon MIN ,  Si Woong PARK ,  Hyoungjun PARK ,  Dong Hoon SON ,  CHAN IL YEO ,  Dongsoo LEE ,  Young Soon HEO

IPC: G01J3/02

Abstract: Disclosed is a spectroscopic device including a planar lightwave circuit to which light passing through an optical fiber is input, a wavelength divider configured to divide a wavelength of light passing through the planar lightwave circuit, a beam splitter configured to divide a traveling direction of light passing through the wavelength divider into an external sample inlet and an internal sample inlet and adjust power of the divided light, a charge-coupled device (CCD) image sensor configured to covert light transmitted from the internal sample inlet to an electrical signal or convert light reflected by the external sample inlet to an electrical signal, a control and signal processor configured to process the electrical signal to indicate a light intensity based on each wavelength, and an input and output interface configured to perform a spectrum analysis for each wavelength using the processed electrical signal.

公开(公告)号：US20140270768A1

公开(公告)日：2014-09-18

申请号：US13872612

申请日：2013-04-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hark YOO ,  Youngsuk LEE ,  Geun Yong KIM ,  Sung Chang KIM ,  Dongsoo LEE

IPC: H04J14/02

CPC classification number: H04J14/0227 ,  H04J14/08 ,  H04Q3/0066 ,  H04Q11/0067 ,  H04Q2011/0083 ,  H04Q2011/0086 ,  H04Q2213/13332

Abstract: Disclosed are an apparatus and a method capable of adjusting an upstream band for a corresponding ONU by detecting a quantity of bands occupied by a packet, not an effective user packet, among upstream transmission bands for each target object of allocation of each band in the OLT to examine whether a queue report is normal, and detecting an ONU, which transmits an abnormal queue report, according to the examination. An OLT of a PON according to an exemplary embodiment of the present disclosure includes: a frame monitoring unit configured to monitor upstream frame data received for each T-CONT; an error detection unit configured to determine whether a queue report error is generated for each T-CONT according to a result of the monitoring; and a band allocation controller configured to allocate an upstream band for an ONU, in which the queue report error is generated, separately from a normal ONU.

Abstract translation: 公开了一种能够通过在OLT的每个频带的每个目标对象的分配的上行传输频带中检测分组而不是有效用户分组占用的频带的数量来调整相应ONU的上行频带的装置和方法 检查队列报告是否正常，根据检查检测发送异常队列报告的ONU。 根据本公开的示例性实施例的PON的OLT包括：帧监视单元，被配置为监视针对每个T-CONT接收的上行帧数据; 错误检测单元，被配置为根据监视结果确定是否为每个T-CONT生成队列报告错误; 以及频带分配控制器，被配置为与正常ONU分开地分配其中生成队列报告错误的ONU的上行频带。

公开(公告)号：US20180131436A1

公开(公告)日：2018-05-10

申请号：US15805236

申请日：2017-11-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byung-Hee SON ,  Geun Yong KIM ,  Jae In KIM ,  Hee Do KIM ,  Moon Kyun OH ,  Hark YOO ,  Dongsoo LEE

IPC: H04B10/071 ,  H04B10/079 ,  H04B10/27

CPC classification number: H04B10/071 ,  H04B10/0779 ,  H04B10/0791 ,  H04B10/0793 ,  H04B10/07955 ,  H04B10/27

Abstract: A terminal status monitoring apparatus connected to a terminal at an optical subscriber side in an optical network is provided. A signal transferring unit transfers a downlink optical signal to the terminal and receives, as a reflected optical signal, the downlink optical signal which is reflected at the terminal. A signal receiving unit measures an intensity of the reflected optical signal. A signal processing unit determines a connection status of a terminal device at the terminal by comparing an intensity of the downlink optical signal with the intensity of the reflected optical signal. A signal output unit outputs the connection status.

公开(公告)号：US20170026111A1

公开(公告)日：2017-01-26

申请号：US15142626

申请日：2016-04-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hark YOO ,  Yongseok YOO ,  Geun Yong KIM ,  Dongsoo LEE

IPC: H04B10/03 ,  H04B10/27

CPC classification number: H04B10/03 ,  H04B10/272 ,  H04B2210/071 ,  H04J14/0282

Abstract: Disclosed herein are an optical network unit and a method for controlling the unit. In a passive optical network system, an optical transceiver of the optical network unit performs a wavelength change of an optical signal according to a wavelength setting command transferred from a media access control (MAC) unit and monitors a wavelength change state and reports the monitored wavelength change state to the MAC unit. When the wavelength malfunction occurs, the MAC unit blocks an uplink optical transmission of the optical transceiver.

Abstract translation: 本文公开了一种光网络单元和用于控制该单元的方法。 在无源光网络系统中，光网络单元的光收发器根据从介质访问控制（MAC）单元传送的波长设置命令来执行光信号的波长变化，并监视波长变化状态并报告所监视的波长 将状态更改为MAC单元。 当发生波长故障时，MAC单元阻止光收发器的上行光传输。

公开(公告)号：US20160277122A1

公开(公告)日：2016-09-22

申请号：US15070340

申请日：2016-03-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Geun Yong KIM ,  Sung Chang KIM ,  Jae In KIM ,  Dongsoo LEE

IPC: H04B10/80

CPC classification number: H04B10/808 ,  H04B10/0773 ,  H04B10/272

Abstract: Provided is an apparatus of recognizing optical connector connection including an IC tag connection unit configured to provide bus power and detect whether the optical connector is connected to an optical adapter, an IC tag configured to store an IC tag ID uniquely given to the optical connector, which is connected to a corresponding optical cable, and to receive the bus power to be driven for bus communication, and an IC tag ID obtaining unit configured to obtain the IC tag ID stored in the IC tag through the IC tag connection unit, when the optical connector is connected to the optical adapter.

Abstract translation: 提供一种识别光连接器连接的装置，包括配置成提供总线电力并检测光连接器是否连接到光适配器的IC标签连接单元，被配置为存储唯一给予光连接器的IC标签ID的IC标签， 连接到对应的光缆，并且接收要驱动的总线电力进行总线通信;以及IC标签ID获取单元，被配置为通过IC标签连接单元获得存储在IC标签中的IC标签ID，当 光学连接器连接到光学适配器。

公开(公告)号：US20160277102A1

公开(公告)日：2016-09-22

申请号：US15070778

申请日：2016-03-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae In KIM ,  Sung Chang KIM ,  Geun Yong KIM ,  Dongsoo LEE

IPC: H04B10/077 ,  H04B10/071

CPC classification number: H04B10/0775 ,  H04B10/071

Abstract: Disclosed is a smart remote node optical network node including an optical layer monitoring unit configured to transmit a monitoring light signal to an optical network unit through an optical switch and receive a monitoring light signal reflected from the optical network unit, an infra recognition unit configured to recognize whether an optical connector is connected to an output port of a remote node and an identification number of the optical connector when the optical connector is connected thereto, and a control unit connected to the optical layer monitoring unit and the infra recognition unit and configured to control recognition and monitoring operations of the remote node according to a remote node application.

Abstract translation: 公开了一种智能远程节点光网络节点，包括：光层监视单元，被配置为通过光开关向光网络单元发送监控光信号，并接收从光网络单元反射的监控光信号;下位识别单元， 识别光连接器是否连接到远程节点的输出端口，以及连接光连接器时的光连接器的识别号，以及连接到光层监视单元和基础设施识别单元的控制单元， 根据远程节点应用控制远程节点的识别和监控操作。

公开(公告)号：US20140178072A1

公开(公告)日：2014-06-26

申请号：US13873910

申请日：2013-04-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hark YOO ,  Geun Yong KIM ,  Youngsuk LEE ,  Sung Chang KIM ,  Dongsoo LEE

IPC: H04B10/27

CPC classification number: H04Q11/0067 ,  H04Q2011/0079

Abstract: The inventive concept relates to an optical line terminal registering optical network terminals having overlapping serial numbers. The optical line terminal may include a memory storing serial number information of optical network terminals of which a registration is completed in a storage region; and a control part that if a serial number by a serial number request is received from optical network terminals, the received serial number is compared with the serial number information of the memory and if they overlap each other, a previously set preliminary identifier is allocated to the optical network terminal having an overlapping serial number.

Abstract translation: 本发明构思涉及注册具有重叠序列号的光网络终端的光线路终端。 光线路终端可以包括存储在存储区域中完成注册的光网络终端的序列号信息的存储器; 以及控制部，如果从光网络终端接收到序列号请求的序列号，则将接收到的序列号与存储器的序列号信息进行比较，并且如果它们彼此重叠，则将预先设置的初步标识符分配给 该光网络终端具有重叠的序列号。