FR2394936B1 - - Google Patents
Info
- Publication number
- FR2394936B1 FR2394936B1 FR7625831A FR7625831A FR2394936B1 FR 2394936 B1 FR2394936 B1 FR 2394936B1 FR 7625831 A FR7625831 A FR 7625831A FR 7625831 A FR7625831 A FR 7625831A FR 2394936 B1 FR2394936 B1 FR 2394936B1
- Authority
- FR
- France
- 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
Classifications
-
- 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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/2933—Signal power control considering the whole optical path
- H04B10/2935—Signal power control considering the whole optical path with a cascade of amplifiers
-
- 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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/524—Pulse modulation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Time-Division Multiplex Systems (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50102524A JPS5227208A (en) | 1975-08-26 | 1975-08-26 | Optical pcm group transmission relay system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2394936A1 FR2394936A1 (fr) | 1979-01-12 |
| FR2394936B1 true FR2394936B1 (US07135483-20061114-C00121.png) | 1983-05-13 |
Family
ID=14329712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7625831A Granted FR2394936A1 (fr) | 1975-08-26 | 1976-08-26 | Repeteur de transmission optique en modulation par impulsions codees |
Country Status (5)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1534786A (en) * | 1976-06-29 | 1978-12-06 | Standard Telephones Cables Ltd | Data transmission system |
| JPS53113401A (en) * | 1977-03-16 | 1978-10-03 | Hitachi Ltd | Light communication system |
| DE2716788A1 (de) * | 1977-04-15 | 1978-10-19 | Spinner Georg | Optisches informationssystem |
| US4183054A (en) * | 1977-09-30 | 1980-01-08 | Harris Corporation | Digital, frequency-translated, plural-channel, vestigial sideband television communication system |
| JPS593051B2 (ja) * | 1978-01-09 | 1984-01-21 | ケイディディ株式会社 | 光中継伝送路の障害監視方式 |
| US4317614A (en) * | 1980-02-20 | 1982-03-02 | General Dynamics, Pomona Division | Fiber optic bus manifold |
| JPS57104339A (en) * | 1980-12-19 | 1982-06-29 | Ricoh Co Ltd | Optical communication network |
| US4679252A (en) * | 1984-01-11 | 1987-07-07 | Chevron Research Company | Fiber optic receiver having a method and an apparatus for data clock extraction |
| US4688268A (en) * | 1984-01-11 | 1987-08-18 | Chevron Research Company | Fiber optic receiver having a combined baseline clamp and automatic gain control detector |
| US4641371A (en) * | 1985-01-16 | 1987-02-03 | Westinghouse Electric Corp. | Multi-star fiber optic network |
| US4727600A (en) * | 1985-02-15 | 1988-02-23 | Emik Avakian | Infrared data communication system |
| US5023942A (en) * | 1987-06-26 | 1991-06-11 | Martin Marietta | Fault tolerant data transmission network |
| DE3818168A1 (de) * | 1988-05-26 | 1990-04-05 | Krone Ag | Empfangsvorverstaerker fuer eine optische nachrichtenuebertragungsstrecke |
| DE3905547A1 (de) * | 1989-02-23 | 1990-09-06 | Standard Elektrik Lorenz Ag | Eingangsstufe fuer einen optischen breitbandempfaenger |
| JP2986613B2 (ja) * | 1992-05-27 | 1999-12-06 | 株式会社日立製作所 | 光伝送モジュール |
| US5792545A (en) * | 1994-02-04 | 1998-08-11 | Dai Nippon Printing Co., Ltd. | Decorative paper/embossing plate in which uneven structure of vessel perforation is reproduced, and preparing method and preparing apparatus therefor |
| JP2003134055A (ja) * | 2001-10-29 | 2003-05-09 | Yokogawa Electric Corp | 光ディジタル通信用測定装置 |
| US7002131B1 (en) | 2003-01-24 | 2006-02-21 | Jds Uniphase Corporation | Methods, systems and apparatus for measuring average received optical power |
| US7215883B1 (en) | 2003-01-24 | 2007-05-08 | Jds Uniphase Corporation | Methods for determining the performance, status, and advanced failure of optical communication channels |
| JP2008252310A (ja) * | 2007-03-29 | 2008-10-16 | Fujitsu Component Ltd | 中継装置及び中継システム |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3727061A (en) * | 1970-07-06 | 1973-04-10 | Us Army | Pulse laser communication system |
| DE2144780A1 (de) * | 1971-09-08 | 1973-03-15 | Licentia Gmbh | Nachrichtenuebertragungssystem mit einem kabel mit parallelgefuehrten glasfaserlichtleitungen |
| JPS4922015A (US07135483-20061114-C00121.png) * | 1972-06-16 | 1974-02-27 | ||
| DE2248211C3 (de) * | 1972-10-02 | 1980-01-03 | Allgemeine Elektricitaets-Gesellschaft Aeg-Telefunken, 1000 Berlin Und 6000 Frankfurt | Faserleitungs-Nachrichtenübertragungssystem |
| US3851167A (en) * | 1972-12-11 | 1974-11-26 | Itt | Light-guide communication system with image intensifier repeater elements |
| CH559990A5 (US07135483-20061114-C00121.png) * | 1973-06-12 | 1975-03-14 | Patelhold Patentverwertung | |
| FR2239063B1 (US07135483-20061114-C00121.png) * | 1973-07-27 | 1977-09-16 | Thomson Csf |
-
1975
- 1975-08-26 JP JP50102524A patent/JPS5227208A/ja active Pending
-
1976
- 1976-08-23 GB GB35001/76A patent/GB1548974A/en not_active Expired
- 1976-08-24 US US05/717,273 patent/US4074127A/en not_active Expired - Lifetime
- 1976-08-24 DE DE2638079A patent/DE2638079C2/de not_active Expired
- 1976-08-26 FR FR7625831A patent/FR2394936A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5227208A (en) | 1977-03-01 |
| DE2638079A1 (de) | 1977-03-10 |
| DE2638079C2 (de) | 1983-10-13 |
| US4074127A (en) | 1978-02-14 |
| GB1548974A (en) | 1979-07-18 |
| FR2394936A1 (fr) | 1979-01-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |