JPS5017108A - - Google Patents
Info
- Publication number
- JPS5017108A JPS5017108A JP4862274A JP4862274A JPS5017108A JP S5017108 A JPS5017108 A JP S5017108A JP 4862274 A JP4862274 A JP 4862274A JP 4862274 A JP4862274 A JP 4862274A JP S5017108 A JPS5017108 A JP S5017108A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/10—Control of transmission; Equalising by pilot signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732321838 DE2321838A1 (en) | 1973-04-30 | 1973-04-30 | CIRCUIT ARRANGEMENT FOR MONITORING A VARIETY OF STATIONS IN A PILOT-MONITORED MESSAGE TRANSMISSION NETWORK |
| DE19732344759 DE2344759A1 (en) | 1973-04-30 | 1973-09-05 | CIRCUIT ARRANGEMENT FOR MONITORING A VARIETY OF STATIONS IN A PILOT-MONITORED MESSAGE TRANSMISSION NETWORK |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5017108A true JPS5017108A (en) | 1975-02-22 |
| JPS5538862B2 JPS5538862B2 (en) | 1980-10-07 |
Family
ID=25765068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4862274A Expired JPS5538862B2 (en) | 1973-04-30 | 1974-04-30 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5538862B2 (en) |
| AT (1) | AT352184B (en) |
| BE (1) | BE814408A (en) |
| CH (1) | CH576213A5 (en) |
| DE (1) | DE2344759A1 (en) |
| FR (1) | FR2227691B1 (en) |
| IL (1) | IL44714A (en) |
| IT (1) | IT1010191B (en) |
| NL (1) | NL7405704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5493911A (en) * | 1978-01-09 | 1979-07-25 | Kokusai Denshin Denwa Co Ltd | Optical repeating transmission line trouble monitoring system |
-
1973
- 1973-09-05 DE DE19732344759 patent/DE2344759A1/en active Pending
-
1974
- 1974-04-23 AT AT335274A patent/AT352184B/en not_active IP Right Cessation
- 1974-04-24 FR FR7414275A patent/FR2227691B1/fr not_active Expired
- 1974-04-24 IL IL44714A patent/IL44714A/en unknown
- 1974-04-26 NL NL7405704A patent/NL7405704A/xx not_active Application Discontinuation
- 1974-04-29 CH CH582674A patent/CH576213A5/xx not_active IP Right Cessation
- 1974-04-29 IT IT22026/74A patent/IT1010191B/en active
- 1974-04-30 JP JP4862274A patent/JPS5538862B2/ja not_active Expired
- 1974-04-30 BE BE143796A patent/BE814408A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5493911A (en) * | 1978-01-09 | 1979-07-25 | Kokusai Denshin Denwa Co Ltd | Optical repeating transmission line trouble monitoring system |
| JPS593051B2 (en) * | 1978-01-09 | 1984-01-21 | ケイディディ株式会社 | Fault monitoring method for optical relay transmission lines |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5538862B2 (en) | 1980-10-07 |
| ATA335274A (en) | 1979-02-15 |
| FR2227691A1 (en) | 1974-11-22 |
| BE814408A (en) | 1974-10-30 |
| AT352184B (en) | 1979-09-10 |
| NL7405704A (en) | 1974-11-01 |
| CH576213A5 (en) | 1976-05-31 |
| IL44714A (en) | 1978-06-15 |
| IL44714A0 (en) | 1974-06-30 |
| DE2344759A1 (en) | 1975-03-13 |
| FR2227691B1 (en) | 1978-06-02 |
| IT1010191B (en) | 1977-01-10 |