公开(公告)号：US20140186035A1

公开(公告)日：2014-07-03

申请号：US13895453

申请日：2013-05-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Han-Hyub Lee ,  Sang-Soo Lee

IPC: H04J14/02

CPC classification number: H04J14/0221 ,  H04B10/272

Abstract: An optical network unit (ONU) having a power saving function for reducing power consumption in an optical network and a power saving method thereof are provided. The ONU includes a first signal transmitter-receiver unit configured to transmit and receive a signal to and from an optical line terminal, a second signal transmitter-receiver unit configured to transmit and receive a signal to and from customer premises equipment through multiple communication ports, a signal processing unit configured to control a signal to be transmitted and received through the first signal transmitter-receiver unit and the second signal transmitter-receiver unit, and a processor configured to control powers of the first signal transmitter-receiver unit and the signal processing unit according to whether data traffic is received through the plurality of communication ports.

Abstract translation: 提供了具有用于降低光网络中的功耗的省电功能的光网络单元（ONU）及其省电方法。 ONU包括被配置为向光线路终端发送信号和从光线路终端接收信号的第一信号发射器 - 接收器单元，被配置为通过多个通信端口向客户驻地设备发送和从客户驻地设备接收信号的第二信号发射器 - 接收器单元， 信号处理单元，被配置为控制通过第一信号发送器 - 接收器单元和第二信号发送器 - 接收器单元发送和接收的信号;以及处理器，被配置为控制第一信号发送器 - 接收器单元的功率和信号处理 根据是否通过多个通信端口接收数据业务单元。

公开(公告)号：US09191142B2

公开(公告)日：2015-11-17

申请号：US13895453

申请日：2013-05-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Han-Hyub Lee ,  Sang-Soo Lee

IPC: H04J14/00 ,  H04J14/02

CPC classification number: H04J14/0221 ,  H04B10/272

Abstract: An optical network unit (ONU) having a power saving function for reducing power consumption in an optical network and a power saving method thereof are provided. The ONU includes a first signal transmitter-receiver unit configured to transmit and receive a signal to and from an optical line terminal, a second signal transmitter-receiver unit configured to transmit and receive a signal to and from customer premises equipment through multiple communication ports, a signal processing unit configured to control a signal to be transmitted and received through the first signal transmitter-receiver unit and the second signal transmitter-receiver unit, and a processor configured to control powers of the first signal transmitter-receiver unit and the signal processing unit according to whether data traffic is received through the plurality of communication ports.

Abstract translation: 提供了具有用于降低光网络中的功耗的省电功能的光网络单元（ONU）及其省电方法。 ONU包括被配置为向光线路终端发送信号和从光线路终端接收信号的第一信号发射器 - 接收器单元，被配置为通过多个通信端口向客户驻地设备发送和从客户驻地设备接收信号的第二信号发射器 - 接收器单元， 信号处理单元，被配置为控制通过第一信号发送器 - 接收器单元和第二信号发送器 - 接收器单元发送和接收的信号;以及处理器，被配置为控制第一信号发送器 - 接收器单元的功率和信号处理 根据是否通过多个通信端口接收数据业务单元。

公开(公告)号：US09136968B2

公开(公告)日：2015-09-15

申请号：US14092260

申请日：2013-11-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Han-Hyub Lee ,  Sang-Soo Lee

IPC: H04J3/06 ,  H04J14/02

CPC classification number: H04J3/0682 ,  H04J14/0226 ,  H04J14/0238 ,  H04J14/0282

Abstract: A Time Wavelength Division Multiplexing-Passive Optical Network (TWDM-PON) system and a communication link method thereof are provided. The communication link method is a method whereby an Optical Network Unit (ONU) which has established communication link to one Optical Line Terminal (OLT) establishes communication link to a different OLT. The ONU receives a wavelength change instruction to change a wavelength thereof to an operating wavelength assigned to the different OLT, and change the wavelength in response to the wavelength change instruction to synchronize to a downstream signal of the operating signal. In addition, the ONU receives an upstream discovery grant signal from the different OLT, and transmits an acknowledgement message to notify the receipt of the upstream discovery grant signal, so that the ONU establishes communication link to the different OLT.

Abstract translation: 提供了时间波分复用无源光网络（TWDM-PON）系统及其通信链路方法。 通信链路方法是建立与一个光线路终端（OLT）的通信链路的光网络单元（ONU）建立到不同OLT的通信链路的方法。 ONU接收波长改变指令，将其波长改变为分配给不同OLT的工作波长，并响应于波长改变指令改变波长以与操作信号的下行信号同步。 此外，ONU从不同的OLT接收到上游发现许可信号，并且发送确认消息以通知上游发现许可信号的接收，使得ONU建立到不同OLT的通信链路。

公开(公告)号：US09197351B2

公开(公告)日：2015-11-24

申请号：US14082796

申请日：2013-11-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyeong-Hwan Doo ,  Seung-Il Myong ,  Han-Hyub Lee ,  Seung-Hyun Cho ,  Jie-Hyun Lee ,  Sang-Soo Lee

IPC: H04B10/50 ,  H04B10/60 ,  H04B10/2587 ,  H04J3/16 ,  H04J14/02

CPC classification number: H04J14/0227 ,  H04J3/1694 ,  H04J14/0246 ,  H04J14/025

Abstract: Provided is a method of selecting a wavelength of an optical network unit including selecting a pre-loaded default wavelength as an available wavelength candidate or the wavelength that has been changed when a preset wavelength changing condition is satisfied as the available wavelength candidate, acquiring frame synchronization for a downstream signal having the same wavelength as the selected available wavelength candidate, and transmitting a registration request message to an optical line terminal (OLT) from which the downstream signal has been transmitted when the frame synchronization is acquired, assigning the available wavelength candidate to an available wavelength used for communication with the OLT and registering the terminal in the OLT when a registration allowance message is received from the OLT.

Abstract translation: 提供了一种选择光网络单元的波长的方法，包括选择预先加载的默认波长作为可用波长候选，或当满足预设波长变化条件时已经改变的波长作为可用波长候选，获取帧同步 对于与选择的可用波长候选具有相同波长的下行信号，并且当获取帧同步时，向已经发送了下行信号的光线路终端（OLT）发送注册请求消息，将可用波长候选分配给 用于与OLT通信的可用波长，并且当从OLT接收到注册允许消息时，在OLT中注册终端。

公开(公告)号：US09112600B2

公开(公告)日：2015-08-18

申请号：US13866647

申请日：2013-04-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jie-Hyun Lee ,  Seung-II Myong ,  Han-Hyub Lee ,  Sang-Soo Lee

IPC: H04B10/00 ,  H04B10/07 ,  H04B10/079 ,  H04J14/02

CPC classification number: H04B10/07 ,  H04B10/07957 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0256 ,  H04J14/0257 ,  H04J14/0258

Abstract: A wavelength tuning time measurement apparatus and method for a multi-wavelength passive optical network (MW PON) are provided. The wavelength tuning time measurement apparatus for measuring a wavelength tuning time of a wavelength-variable light source included in the MW PON system includes an optical filter configured to pass only light of a certain wavelength bandwidth and a photo detector configured to sense light passing through the optical filter. The wavelength tuning time is a time taken from a time when a wavelength change signal is transferred to the wavelength-variable light source, to a time when light starts to be successively sensed by the photo detector.

Abstract translation: 提供了一种用于多波长无源光网络（MW PON）的波长调谐时间测量装置和方法。 用于测量MW PON系统中包括的波长可变光源的波长调谐时间的波长调谐时间测量装置包括被配置为仅通过一定波长带宽的光的光学滤波器和被配置为感测通过 滤光片 波长调谐时间是从波长变化信号传输到波长可变光源的时间到光开始被光电检测器连续感测的时间。

公开(公告)号：US09136941B2

公开(公告)日：2015-09-15

申请号：US13838309

申请日：2013-03-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Han-Hyub Lee ,  Seung-Il Myong ,  Eui-Suk Jung ,  Sang-Soo Lee

IPC: H04B10/08 ,  H04B10/071

CPC classification number: H04B10/071

Abstract: An optical layer monitoring apparatus and method thereof are provided. According to an embodiment of the present invention, an optical layer monitoring apparatus including an optical time domain reflectometer (OTDR) function so as to monitor an optical path of a passive optical network (PON), and a method for improving accuracy of measured monitoring results using the optical layer monitoring apparatus are provided. Therefore, it is possible to enable a user to continuously detect distortion or attenuation along the optical path, and to quickly recover from the distortion or attenuation along the optical path when distortion or attenuation is detected.

Abstract translation: 提供了一种光学层监测装置及其方法。 根据本发明的实施例，包括光时域反射计（OTDR）功能以监视无源光网络（PON）的光路的光层监视装置以及用于提高测量监视结果精度的方法 提供了使用光学层监视装置。 因此，可以使用户能够连续地检测沿着光路的失真或衰减，并且当检测到失真或衰减时，可以沿着光路的失真或衰减快速恢复。

公开(公告)号：US09093811B2

公开(公告)日：2015-07-28

申请号：US14094113

申请日：2013-12-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eun-Gu Lee ,  Eui-Suk Jung ,  Sil-Gu Mun ,  Han-Hyub Lee ,  Jyung-Chan Lee ,  Sang-Soo Lee ,  Jong-Hyun Lee

IPC: H01S5/42 ,  H01S5/022 ,  H01S5/02 ,  H01S5/40 ,  H01S5/024 ,  H01S5/068 ,  H01S5/026 ,  H01S5/042

CPC classification number: H01S5/02272 ,  H01S5/0212 ,  H01S5/02212 ,  H01S5/02276 ,  H01S5/02415 ,  H01S5/0261 ,  H01S5/0425 ,  H01S5/06804 ,  H01S5/4025

Abstract: A multi-channel transmitter optical sub-assembly (TOSA) is provided. The multi-channel TOSA includes a stem including a sub-mount, a plurality of light sources mounted on the sub-mount, a common ground pad disposed at the sub-mount and connected to ground electrodes of the light sources in common, a common lead pin installed at the stem, and connected to the common ground pad, and a thermistor mounted on the sub-mount along with the light sources.

Abstract translation: 提供多通道发射机光学子组件（TOSA）。 多通道TOSA包括一个杆，它包括一个副安装座，多个安装在子座上的光源，一个共同的接地焊盘，设置在子座上并共同连接到光源的接地电极，一个共同的 引脚安装在杆上，并连接到公共接地垫，以及与光源一起安装在子安装座上的热敏电阻。