JPWO2021166686A5 - - Google Patents
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- 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
- Authority
- JP
- Japan
- Prior art keywords
- optical signal
- optical
- section
- level
- failure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000003287 optical effect Effects 0.000 claims 35
- 230000005540 biological transmission Effects 0.000 claims 11
- 238000001514 detection method Methods 0.000 claims 11
- 238000000034 method Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
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 |
Family
ID=77392130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022501792A Pending JPWO2021166686A1 (https=) | 2020-02-19 | 2021-02-05 |
Country Status (5)
| Country | Link |
|---|---|
| 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)
| 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)
| 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 |
-
2021
- 2021-02-05 EP EP21756194.3A patent/EP4109843B1/en active Active
- 2021-02-05 JP JP2022501792A patent/JPWO2021166686A1/ja active Pending
- 2021-02-05 US US17/797,492 patent/US11936423B2/en active Active
- 2021-02-05 CN CN202180014888.2A patent/CN115136514A/zh active Pending
- 2021-02-05 WO PCT/JP2021/004329 patent/WO2021166686A1/ja not_active Ceased
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