JPS6362148B2 - - Google Patents
Info
- Publication number
- JPS6362148B2 JPS6362148B2 JP57032145A JP3214582A JPS6362148B2 JP S6362148 B2 JPS6362148 B2 JP S6362148B2 JP 57032145 A JP57032145 A JP 57032145A JP 3214582 A JP3214582 A JP 3214582A JP S6362148 B2 JPS6362148 B2 JP S6362148B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- relay transmission
- monitoring
- code string
- transmission line
- 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.)
- Expired
Links
- 238000012544 monitoring process Methods 0.000 claims description 67
- 230000005540 biological transmission Effects 0.000 claims description 61
- 230000001172 regenerating effect Effects 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 18
- 239000000284 extract Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 11
- 239000013307 optical fiber Substances 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
- H04B17/401—Monitoring; Testing of relay systems with selective localization
- H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
- H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc Digital Transmission (AREA)
- Optical Communication System (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57032145A JPS58148548A (ja) | 1982-03-01 | 1982-03-01 | デジタル中継伝送路の監視方式 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57032145A JPS58148548A (ja) | 1982-03-01 | 1982-03-01 | デジタル中継伝送路の監視方式 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58148548A JPS58148548A (ja) | 1983-09-03 |
| JPS6362148B2 true JPS6362148B2 (en, 2012) | 1988-12-01 |
Family
ID=12350725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57032145A Granted JPS58148548A (ja) | 1982-03-01 | 1982-03-01 | デジタル中継伝送路の監視方式 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58148548A (en, 2012) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2574202B1 (fr) * | 1984-11-30 | 1987-04-24 | Cit Alcatel | Procede et dispositif de telesignalisation par substitution de message a des donnees acheminees par une liaison de transmission numerique |
| FR2574201B1 (fr) * | 1984-11-30 | 1987-04-24 | Cit Alcatel | Procede et dispositif de telesignalisation pour une liaison de transmission numerique |
| US6929831B2 (en) | 2001-09-15 | 2005-08-16 | Trikon Holdings Limited | Methods of forming nitride films |
-
1982
- 1982-03-01 JP JP57032145A patent/JPS58148548A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58148548A (ja) | 1983-09-03 |
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