JPWO2021166686A5 - - Google Patents

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Publication number
JPWO2021166686A5
JPWO2021166686A5 JP2022501792A JP2022501792A JPWO2021166686A5 JP WO2021166686 A5 JPWO2021166686 A5 JP WO2021166686A5 JP 2022501792 A JP2022501792 A JP 2022501792A JP 2022501792 A JP2022501792 A JP 2022501792A JP WO2021166686 A5 JPWO2021166686 A5 JP WO2021166686A5
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JP
Japan
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optical signal
optical
section
level
failure
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JP2022501792A
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English (en)
Japanese (ja)
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JPWO2021166686A1 (https=
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Priority claimed from PCT/JP2021/004329 external-priority patent/WO2021166686A1/ja
Publication of JPWO2021166686A1 publication Critical patent/JPWO2021166686A1/ja
Publication of JPWO2021166686A5 publication Critical patent/JPWO2021166686A5/ja
Pending legal-status Critical Current

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JP2022501792A 2020-02-19 2021-02-05 Pending JPWO2021166686A1 (https=)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020025893 2020-02-19
PCT/JP2021/004329 WO2021166686A1 (ja) 2020-02-19 2021-02-05 障害検出装置、障害検出方法及び海底ケーブルシステム

Publications (2)

Publication Number Publication Date
JPWO2021166686A1 JPWO2021166686A1 (https=) 2021-08-26
JPWO2021166686A5 true JPWO2021166686A5 (https=) 2022-10-04

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ID=77392130

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JP2022501792A Pending JPWO2021166686A1 (https=) 2020-02-19 2021-02-05

Country Status (5)

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US (1) US11936423B2 (https=)
EP (1) EP4109843B1 (https=)
JP (1) JPWO2021166686A1 (https=)
CN (1) CN115136514A (https=)
WO (1) WO2021166686A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025059276A1 (en) * 2023-09-12 2025-03-20 California Institute Of Technology Optical fiber-based tsunami warning system using submarine telecommunication cables

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2719654B2 (ja) * 1989-07-10 1998-02-25 日本電信電話株式会社 光増幅中継伝送路の監視方式
JP4152125B2 (ja) * 2002-05-30 2008-09-17 富士通株式会社 光信号レベル制御装置
US20040047629A1 (en) * 2002-08-20 2004-03-11 Red Sky Systems, Inc. Adaptor arrangement for detecting faults in an optically amplified multi-span transmission system using a remotely located OTDR
US20040047295A1 (en) * 2002-08-20 2004-03-11 Morreale Jay P. Method and apparatus for providing a common optical line monitoring and service channel over an WDM optical transmission system
JP4414800B2 (ja) * 2004-03-25 2010-02-10 株式会社日立コミュニケーションテクノロジー 光伝送装置およびその制御方法
JP4782667B2 (ja) * 2006-12-26 2011-09-28 三菱電機株式会社 光受信器
US8135274B2 (en) * 2008-02-11 2012-03-13 Tyco Electronics Subsea Communications Llc System and method for fault identification in optical communication systems
JP2012015736A (ja) 2010-06-30 2012-01-19 Nec Corp 障害検知装置、光伝送装置、および障害検知方法
CN102801464B (zh) * 2011-05-27 2015-03-25 华为海洋网络有限公司 检测海底光缆线路的方法、传送装置和系统
US8417114B1 (en) * 2011-11-18 2013-04-09 Level 3 Communications, Llc Apparatus, system and method for network monitoring
US9749041B2 (en) * 2011-11-23 2017-08-29 Tyco Electronics Subsea Communications Llc System and method using fault injection into line monitoring system baselines
US9002197B2 (en) * 2012-11-14 2015-04-07 Telefonaktiebolaget L M Ericsson (Publ) Sequence-based link fault localization
US10382123B2 (en) * 2018-01-12 2019-08-13 Subcom, Llc Techniques for parameter reporting of elements in an optical transmission system using high loss loopback (HLLB) data and a line monitoring system implementing the same
US10644792B2 (en) * 2018-07-16 2020-05-05 Juniper Networks, Inc. Methods and apparatus for adaptively detecting signal degradation in an optical communication system using the pre-forward error correction bit error rate
US11476930B2 (en) * 2018-08-30 2022-10-18 Nec Corporation Optical time domain reflectometer, method of testing optical transmission line, and test system of optical transmission line
JP6831600B2 (ja) 2019-09-15 2021-02-17 株式会社サンセイアールアンドディ 遊技機

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