公开(公告)号：US20150323419A1

公开(公告)日：2015-11-12

申请号：US14682416

申请日：2015-04-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  TELACE, INC.

Inventor： Seung Il MYONG ,  Jyung Chan LEE ,  Hun Sik KANG ,  Won Kyoung LEE ,  Jin Hee HAN

IPC: G01M11/00

CPC classification number: G01M11/3145 ,  G01M11/31 ,  H04B10/071

Abstract: Provided is an apparatus and a method for partial monitoring of an optical fiber, wherein the optical fiber monitoring apparatus includes a monitoring light transmitter to continuously output a monitoring light to the optical fiber based on a number of measuring time sections generated by dividing an optical fiber monitoring time section, a monitoring light receiver to receive a monitoring light fed back from the optical fiber, measure a monitoring light received based on different measuring time sections for each monitoring light, and store a result of the measuring in a storage medium, and an optical fiber monitor to monitor a status of the optical fiber based on the result of the measuring stored in the storage medium.

Abstract translation: 本发明提供了一种用于部分监视光纤的装置和方法，其中，光纤监视装置包括：监视光发射机，其基于通过对光纤进行分割而产生的多个测量时间段，连续向光纤输出监视光 监视时间部分，用于接收从光纤反馈的监视光的监视光接收器，针对每个监视光，测量基于不同测量时间段接收到的监视光，并将测量结果存储在存储介质中，以及 光纤监视器，用于基于存储在存储介质中的测量结果监视光纤的状态。

公开(公告)号：US20190079196A1

公开(公告)日：2019-03-14

申请号：US15809391

申请日：2017-11-10

Applicant: TELACE, INC.

Inventor： Jin-Hee Han ,  Byeong-Gyu An ,  Hak-Du Kim ,  Kang-Suk Kim

IPC: G01S19/11

Abstract: A pseudo satellite navigation signal repeating device includes a communication interface configured to collect orbit information of navigation satellites from a global navigation satellite information server through a network, a controller configured to calculate pseudo ranges from associated navigation satellites based on associated orbit information of the associated navigation satellites among orbit information of all the navigation satellites, a signal generator configured to generate global navigation satellite baseband digital signals of the associated navigation satellites based on the pseudo ranges, a signal converter configured to convert the navigation signals into analog baseband or intermediate frequency band signals, and a modulator configured to modulate the analog baseband or intermediate frequency band signals using a wireless carrier signal.