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公开(公告)号：US10648860B2
公开(公告)日：2020-05-12
申请号：US15870012
申请日：2018-01-12
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
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.
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公开(公告)号：US10270526B2
公开(公告)日：2019-04-23
申请号：US15805236
申请日：2017-11-07
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 , H04B10/077
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.
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公开(公告)号：US10205524B2
公开(公告)日：2019-02-12
申请号：US15461214
申请日：2017-03-16
Inventor： Geun Yong Kim , Hark Yoo , Sung Chang Kim , Dongsoo Lee
IPC: H04B10/27 , H04J14/02 , H04B10/079
Abstract: A method and an apparatus for setting a quiet window in a passive optical network system are provided. A first response time from a time after an optical line terminal (OLT) transmits a serial number request up to a time in which the OLT receives a first response signal to the serial number request is measured, and a second response time up to a time in which the OLT receives a final response signal to the serial number request is measured. In addition, distance information of an optical network unit (ONU) including the first response time and the second response time is acquired.
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4.发明授权Optical line terminal of passive optical network, and method for controlling upstream band using the same 有权无源光网络的光线路终端，以及用于控制上行带的方法公开(公告)号：US09088382B2
公开(公告)日：2015-07-21
申请号：US13872612
申请日：2013-04-29
Inventor： Hark Yoo , Youngsuk Lee , Geun Yong Kim , Sung Chang Kim , Dongsoo Lee
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。
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5.发明申请OPTICAL LINE TERMINAL AND OPTICAL NETWORK UNIT FOR SUPPORTING SLEEP MODE THEREOF 有权用于支持睡眠模式的光线终端和光网络单元公开(公告)号：US20140133843A1
公开(公告)日：2014-05-15
申请号：US13798298
申请日：2013-03-13
Inventor： Geun Yong KIM , Sung Chang Kim , Hark Yoo , Youngsuk Lee , Dongsoo Lee , Young Sun Kim
IPC: H04B10/564
CPC classification number: H04B10/564 , H04B10/272
Abstract: An optical line terminal is provided which includes an upward band allocating unit configured to send an upward bandwidth allocation map to an optical network unit and to determine a sleep mode of the optical network unit according to whether a response message corresponding to the upward bandwidth allocation map is received; and an alarm unit configured to determine an upward bandwidth allocation map transfer operation as a normal operation according to an operation of the sleep mode.
Abstract translation: 提供了一种光线路终端，其包括向上频带分配单元，被配置为向光网络单元发送向上带宽分配映射，并且根据对应于向上带宽分配映射的响应消息来确定光网络单元的睡眠模式 被收到 以及警报单元，被配置为根据睡眠模式的操作来确定向上带宽分配映射传送操作为正常操作。
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Patent Agency Ranking
公开(公告)号：US10209443B2
公开(公告)日：2019-02-19
申请号：US15804653
申请日：2017-11-06
Inventor： Hyun Seo Kang , Eun Kyoung Jeon , Jaisang Koh , Keo-Sik Kim , Sung Chang Kim , Jeong Eun Kim , Ji Hyoung Ryu , Hyoungjun Park , Dong Hoon Son , Chan Il Yeo , Dongsoo Lee , Seihyoung Lee , Young Soon Heo
IPC: H04J14/02 , H04B10/2513 , G02B6/12
Abstract: Disclosed is a multi-wavelength transmission apparatus including a wavelength divider to divide an optical signal by wavelength and output wavelength-divided optical signals to different positions, the optical signal being received from an optical circulator, a first cylindrical lens to diverge the wavelength-divided optical signals along an X axis and a Y axis and allow the wavelength-divided optical signals to be promoted in a Z-direction, a second cylindrical lens to diverge optical signals output from the first cylindrical lens along the X axis and the Y axis and allow the output optical signals to be promoted in the Z-direction, and a reflector to reflect optical signals output from the second cylindrical lens toward the second cylindrical lens, the first cylindrical lens being identical in shape to the second cylindrical lens and rotated by 90° in an Y-axial direction based on the second cylindrical lens.
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公开(公告)号：US09774404B2
公开(公告)日：2017-09-26
申请号：US15070340
申请日：2016-03-15
Inventor： Geun Yong Kim , Sung Chang Kim , Jae In Kim , Dongsoo Lee
IPC: H04B10/272 , H04B10/80 , H04B10/077
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.
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公开(公告)号：US09755736B2
公开(公告)日：2017-09-05
申请号：US15070778
申请日：2016-03-15
Inventor： Jae In Kim , Sung Chang Kim , Geun Yong Kim , Dongsoo Lee
IPC: H04B10/073 , H04J14/02 , 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.
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公开(公告)号：US11009830B2
公开(公告)日：2021-05-18
申请号：US15843830
申请日：2017-12-15
Inventor： Mun Seob Lee , Gi Hyeon Min , Byung-Tak Lee , Seihyoung Lee , Dongsoo Lee
Abstract: A hologram image acquiring apparatus includes 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 respective phase per pixel unit.
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公开(公告)号：US09698900B2
公开(公告)日：2017-07-04
申请号：US15142626
申请日：2016-04-29
Inventor： Hark Yoo , Yongseok Yoo , Geun Yong Kim , Dongsoo Lee
IPC: H04B10/00 , H04B10/03 , H04B10/272 , H04J14/02 , H04J14/00
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.
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