IT1153596B - Sistema di trasmissione su portante fisico in fibra ottica, di un flusso di dati principale e di un flusso di dati secondario - Google Patents
Sistema di trasmissione su portante fisico in fibra ottica, di un flusso di dati principale e di un flusso di dati secondarioInfo
- Publication number
- IT1153596B IT1153596B IT23956/82A IT2395682A IT1153596B IT 1153596 B IT1153596 B IT 1153596B IT 23956/82 A IT23956/82 A IT 23956/82A IT 2395682 A IT2395682 A IT 2395682A IT 1153596 B IT1153596 B IT 1153596B
- Authority
- IT
- Italy
- Prior art keywords
- data flow
- data stream
- transmission system
- secondary data
- bit
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title abstract 4
- 239000013307 optical fiber Substances 0.000 title 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
- H04L25/4908—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes
- H04L25/491—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes using 1B2B codes
- H04L25/4912—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes using 1B2B codes using CMI or 2-HDB-3 code
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/07—Monitoring an optical transmission system using a supervisory signal
- H04B2210/074—Monitoring an optical transmission system using a supervisory signal using a superposed, over-modulated signal
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Dc Digital Transmission (AREA)
- Time-Division Multiplex Systems (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT23956/82A IT1153596B (it) | 1982-10-27 | 1982-10-27 | Sistema di trasmissione su portante fisico in fibra ottica, di un flusso di dati principale e di un flusso di dati secondario |
US06/524,024 US4524462A (en) | 1982-06-24 | 1983-08-17 | System for jointly transmitting high-frequency and low-frequency digital signals over a fiber-optical carrier |
FR8317152A FR2535556A1 (fr) | 1982-10-27 | 1983-10-27 | Systeme de transmission sur porteur physique en fibre optique, d'un flux de donnees principal et d'un flux de donnees secondaire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT23956/82A IT1153596B (it) | 1982-10-27 | 1982-10-27 | Sistema di trasmissione su portante fisico in fibra ottica, di un flusso di dati principale e di un flusso di dati secondario |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8223956A0 IT8223956A0 (it) | 1982-10-27 |
IT1153596B true IT1153596B (it) | 1987-01-14 |
Family
ID=11211127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23956/82A IT1153596B (it) | 1982-06-24 | 1982-10-27 | Sistema di trasmissione su portante fisico in fibra ottica, di un flusso di dati principale e di un flusso di dati secondario |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2535556A1 (it) |
IT (1) | IT1153596B (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH666150A5 (de) * | 1984-09-28 | 1988-06-30 | Bbc Brown Boveri & Cie | Verfahren zur zusaetzlichen uebertragung von informationen ueber einen digitalen hilfskanal sowie anwendung des verfahrens. |
FR2573941A1 (fr) * | 1984-11-27 | 1986-05-30 | Inf Milit Spatiale Aeronaut | Procede de reconnaissance de debut de message dans une transmission d'informations numeriques par paquets, et dispositifs de mise en oeuvre de ce procede |
CA1258130A (en) * | 1985-07-11 | 1989-08-01 | Nec Corporation | Cmi signal transmission system |
DE3527181A1 (de) * | 1985-07-30 | 1987-02-19 | Ant Nachrichtentech | Umcodierverfahren |
EP0403856B1 (de) * | 1989-06-15 | 1995-01-04 | Siemens-Albis Aktiengesellschaft | Verfahren und Schaltungsanordnung zur Übertragung eines Hilfsdatenstroms |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4215245A (en) * | 1978-12-29 | 1980-07-29 | Bell Telephone Laboratories, Incorporated | Variable rate synchronous digital transmission system |
-
1982
- 1982-10-27 IT IT23956/82A patent/IT1153596B/it active
-
1983
- 1983-10-27 FR FR8317152A patent/FR2535556A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
IT8223956A0 (it) | 1982-10-27 |
FR2535556A1 (fr) | 1984-05-04 |
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