FR2135029B1 - - Google Patents
Info
- Publication number
- FR2135029B1 FR2135029B1 FR7112142A FR7112142A FR2135029B1 FR 2135029 B1 FR2135029 B1 FR 2135029B1 FR 7112142 A FR7112142 A FR 7112142A FR 7112142 A FR7112142 A FR 7112142A FR 2135029 B1 FR2135029 B1 FR 2135029B1
- 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
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
- H04B7/18508—Communications with or from aircraft, i.e. aeronautical mobile service with satellite system used as relay, i.e. aeronautical mobile satellite service
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7112142A FR2135029B1 (fr) | 1971-04-06 | 1971-04-06 | |
US00235548A US3761813A (en) | 1971-04-06 | 1972-03-17 | Method of telecommunication via satellite and systems using this method |
DE19722215394 DE2215394A1 (de) | 1971-04-06 | 1972-03-29 | Verfahren und System zur Nachrichtenübertragung zwischen Luftfahrzeugen über aktive stationäre Satelliten |
GB1578272A GB1376357A (en) | 1971-04-06 | 1972-04-05 | Method of telecommunication via satellite and systems using this method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7112142A FR2135029B1 (fr) | 1971-04-06 | 1971-04-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2135029A1 FR2135029A1 (fr) | 1972-12-15 |
FR2135029B1 true FR2135029B1 (fr) | 1974-03-22 |
Family
ID=9074834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7112142A Expired FR2135029B1 (fr) | 1971-04-06 | 1971-04-06 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3761813A (fr) |
DE (1) | DE2215394A1 (fr) |
FR (1) | FR2135029B1 (fr) |
GB (1) | GB1376357A (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2615198C3 (de) * | 1976-04-08 | 1979-08-16 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Nachrichtenübertragungssystem zum zweiseitig gerichteten Nachrichtenverkehr zwischen einer Hauptstation und mehreren Unterstationen über einen Satelliten |
US4397019A (en) * | 1977-10-13 | 1983-08-02 | Ibm Corporation | TDMA Intertransponder communication |
US4455651A (en) * | 1980-10-20 | 1984-06-19 | Equatorial Communications Company | Satellite communications system and apparatus |
USRE32905F1 (en) * | 1980-10-20 | 1992-11-10 | Satellite communications system and apparatus | |
US4467468A (en) * | 1981-12-28 | 1984-08-21 | At&T Bell Laboratories | Optical communication system |
US4901307A (en) * | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
DE3707960C1 (de) * | 1987-03-12 | 1988-10-20 | Ant Nachrichtentech | Vieltraeger-Demodulator |
FR2712095B1 (fr) * | 1993-11-05 | 1995-12-22 | Europ Agence Spatiale | Procédé de mesures altimétriques aériennes ou spatiales, notamment destiné à l'altimétrie des océans, et dispositif mettant en Óoeuvre un tel procédé. |
US5699069A (en) * | 1996-08-19 | 1997-12-16 | Northrop Grumman Corporation | Plural beam reduction of multipath reflections |
US5966442A (en) * | 1996-11-15 | 1999-10-12 | Worldspace, Inc. | Real-time information delivery system for aircraft |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB585263A (en) * | 1944-02-12 | 1947-02-03 | Standard Telephones Cables Ltd | Improvements in or relating to radio frequency carrier current communication systems |
US2705795A (en) * | 1949-07-06 | 1955-04-05 | Fisk Bert | Data transmission system |
US3178643A (en) * | 1960-11-21 | 1965-04-13 | Bell Telephone Labor Inc | Pulse transmission echo suppression system |
CH497089A (de) * | 1968-07-26 | 1970-09-30 | Autophon Ag | Anlage zur Übermittlung von kontinuierlichen Signalen |
US3678387A (en) * | 1970-08-05 | 1972-07-18 | Us Air Force | Satellite communications system |
-
1971
- 1971-04-06 FR FR7112142A patent/FR2135029B1/fr not_active Expired
-
1972
- 1972-03-17 US US00235548A patent/US3761813A/en not_active Expired - Lifetime
- 1972-03-29 DE DE19722215394 patent/DE2215394A1/de active Pending
- 1972-04-05 GB GB1578272A patent/GB1376357A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2135029A1 (fr) | 1972-12-15 |
GB1376357A (en) | 1974-12-04 |
DE2215394A1 (de) | 1972-10-12 |
US3761813A (en) | 1973-09-25 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property |