IN154980B - - Google Patents
Info
- Publication number
- IN154980B IN154980B IN1478/CAL/81A IN1478CA1981A IN154980B IN 154980 B IN154980 B IN 154980B IN 1478CA1981 A IN1478CA1981 A IN 1478CA1981A IN 154980 B IN154980 B IN 154980B
- Authority
- IN
- India
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
- H04B14/006—Angle modulation
-
- 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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813106682 DE3106682A1 (de) | 1981-02-23 | 1981-02-23 | Nachrichtenuebertragungssystem fuer duplex-betrieb ueber eine lichtleitfaser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN154980B true IN154980B (it) | 1984-12-22 |
Family
ID=6125530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1478/CAL/81A IN154980B (it) | 1981-02-23 | 1981-12-30 |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0058764A3 (it) |
| JP (1) | JPS57155850A (it) |
| AU (1) | AU529470B2 (it) |
| BR (1) | BR8200920A (it) |
| DE (1) | DE3106682A1 (it) |
| GR (1) | GR78216B (it) |
| IN (1) | IN154980B (it) |
| NO (1) | NO154618C (it) |
| YU (1) | YU39982A (it) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3201375A1 (de) * | 1982-01-19 | 1983-07-28 | Siemens AG, 1000 Berlin und 8000 München | Traegerfrequenzsystem fuer vierdrahtbetrieb |
| WO1987002205A1 (en) * | 1985-09-25 | 1987-04-09 | Australian Telecommunications Commission | Optical distribution system |
| DE3643834C2 (de) * | 1986-12-20 | 1994-10-06 | Rheydt Kabelwerk Ag | Verfahren zur bidirektionalen Übertragung von digitalen Signalen |
| DE3907497A1 (de) * | 1989-03-08 | 1990-09-13 | Standard Elektrik Lorenz Ag | Optisches nachrichtenuebertragungssystem fuer den teilnehmeranschlussbereich |
| DE3907495A1 (de) * | 1989-03-08 | 1990-09-13 | Standard Elektrik Lorenz Ag | Optisches nachrichtenuebertragungssystem fuer den teilnehmeranschlussbereich |
| DE3930067A1 (de) * | 1989-09-09 | 1991-03-21 | Rheydt Kabelwerk Ag | Optisches signaluebertragungssystem |
| US5005212A (en) * | 1989-12-12 | 1991-04-02 | At&T Bell Laboratories | Interference suppression in optical communication systems |
| US5459607A (en) * | 1993-04-19 | 1995-10-17 | C-Cor/Comlux, Inc. | Synchronous optical digital transmission system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53138605A (en) * | 1977-05-10 | 1978-12-04 | Nec Corp | Optical communication device |
| JPS5527749A (en) * | 1978-08-17 | 1980-02-28 | Nec Corp | Optical fiber two-way transmission system |
| US4289373A (en) * | 1978-08-17 | 1981-09-15 | Nippon Electric Co., Ltd. | Bidirectional optical fiber transmission system |
-
1981
- 1981-02-23 DE DE19813106682 patent/DE3106682A1/de not_active Withdrawn
- 1981-10-30 EP EP81109424A patent/EP0058764A3/de not_active Ceased
- 1981-12-30 IN IN1478/CAL/81A patent/IN154980B/en unknown
-
1982
- 1982-02-19 BR BR8200920A patent/BR8200920A/pt unknown
- 1982-02-19 NO NO820518A patent/NO154618C/no unknown
- 1982-02-22 AU AU80658/82A patent/AU529470B2/en not_active Ceased
- 1982-02-22 GR GR67356A patent/GR78216B/el unknown
- 1982-02-22 JP JP57026187A patent/JPS57155850A/ja active Pending
- 1982-02-23 YU YU00399/82A patent/YU39982A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57155850A (en) | 1982-09-27 |
| AU8065882A (en) | 1982-10-21 |
| NO154618B (no) | 1986-08-04 |
| NO154618C (no) | 1986-11-12 |
| EP0058764A3 (de) | 1983-09-07 |
| AU529470B2 (en) | 1983-06-09 |
| BR8200920A (pt) | 1982-12-28 |
| YU39982A (en) | 1984-12-31 |
| NO820518L (no) | 1982-08-24 |
| GR78216B (it) | 1984-09-26 |
| EP0058764A2 (de) | 1982-09-01 |
| DE3106682A1 (de) | 1982-09-09 |