BE853633A - Systeme de communication par satellite entre une station principale et un ensemble de stations secondaires - Google Patents
Systeme de communication par satellite entre une station principale et un ensemble de stations secondairesInfo
- Publication number
- BE853633A BE853633A BE2055837A BE2055837A BE853633A BE 853633 A BE853633 A BE 853633A BE 2055837 A BE2055837 A BE 2055837A BE 2055837 A BE2055837 A BE 2055837A BE 853633 A BE853633 A BE 853633A
- Authority
- BE
- Belgium
- Prior art keywords
- communication system
- satellite communication
- main station
- secondary stations
- stations
- Prior art date
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
- H04B7/204—Multiple access
- H04B7/212—Time-division multiple access [TDMA]
- H04B7/2125—Synchronisation
- H04B7/2126—Synchronisation using a reference station
-
- 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)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2615198A DE2615198C3 (de) | 1976-04-08 | 1976-04-08 | Nachrichtenübertragungssystem zum zweiseitig gerichteten Nachrichtenverkehr zwischen einer Hauptstation und mehreren Unterstationen über einen Satelliten |
Publications (1)
Publication Number | Publication Date |
---|---|
BE853633A true BE853633A (fr) | 1977-10-17 |
Family
ID=5974763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE2055837A BE853633A (fr) | 1976-04-08 | 1977-04-15 | Systeme de communication par satellite entre une station principale et un ensemble de stations secondaires |
Country Status (6)
Country | Link |
---|---|
US (1) | US4117267A (de) |
BE (1) | BE853633A (de) |
DE (1) | DE2615198C3 (de) |
FR (1) | FR2347836A1 (de) |
GB (1) | GB1555613A (de) |
IT (1) | IT1078090B (de) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54158810A (en) * | 1978-06-06 | 1979-12-15 | Nec Corp | Time-division multidirectional multiplex communication system |
US4301530A (en) * | 1978-12-18 | 1981-11-17 | The United States Of America As Represented By The Secretary Of The Army | Orthogonal spread spectrum time division multiple accessing mobile subscriber access system |
US4292683A (en) * | 1979-11-06 | 1981-09-29 | Satellite Business Systems | Guard band reduction in open loop TDMA communications |
DE3013252A1 (de) * | 1980-04-03 | 1981-10-08 | Steuerungstechnik GmbH, 8000 München | Anlage zur zeitmultiplex-funkfernsteuerung mehrerer geraete |
GB2140254B (en) * | 1980-11-21 | 1985-09-25 | Western Electric Co | Mobile radio system |
FR2502426A1 (fr) * | 1981-03-20 | 1982-09-24 | Trt Telecom Radio Electr | Systeme de transmission d'informations entre une station principale et des stations secondaires operant selon un procede amrt |
US4411007A (en) * | 1981-04-29 | 1983-10-18 | The Manitoba Telephone System | Distributed network synchronization system |
US4528656A (en) * | 1982-07-02 | 1985-07-09 | Harris Corporation | Radio communication system using frequency division multiplexing for transmission between a master station and a plurality of remote stations |
US4587661A (en) * | 1983-03-04 | 1986-05-06 | Rca Corporation | Apparatus for synchronizing spread spectrum transmissions from small earth stations used for satellite transmission |
JPS61170150A (ja) * | 1985-01-24 | 1986-07-31 | Nec Corp | 時分割多元接続方式における基準局の従局制御装置 |
US4805189A (en) * | 1986-02-13 | 1989-02-14 | Signatron, Inc. | Signal processing system |
US4823341A (en) * | 1986-08-14 | 1989-04-18 | Hughes Aircraft Company | Satellite communications system having frequency addressable high gain downlink beams |
US4872015A (en) * | 1986-12-01 | 1989-10-03 | Hughes Aircraft Company | Satellite communications system for mobile users |
US4928274A (en) * | 1988-01-19 | 1990-05-22 | Qualcomm, Inc. | Multiplexed address control in a TDM communication system |
US4979170A (en) * | 1988-01-19 | 1990-12-18 | Qualcomm, Inc. | Alternating sequential half duplex communication system |
US5278891A (en) * | 1988-04-29 | 1994-01-11 | Mobile Telecommunication Technologies | Ground-to-air telephone calling system and related method |
CA1310699C (en) * | 1988-04-29 | 1992-11-24 | Jai P. Bhagat | Ground-to-air telephone calling system and related method |
US5408515A (en) * | 1988-04-29 | 1995-04-18 | Mobile Telecommunication Technologies | Ground-to-air telephone calling system and related method for directing a call to a particular passenger |
US5714948A (en) * | 1993-05-14 | 1998-02-03 | Worldwide Notifications Systems, Inc. | Satellite based aircraft traffic control system |
US5586150A (en) * | 1993-11-24 | 1996-12-17 | Rajupandaram K. Balasubramaniam | Method and apparatus for symbol synchronization in multi-level digital FM radio |
WO1996002905A1 (en) * | 1994-07-15 | 1996-02-01 | Worldwide Notification Systems, Inc. | Satellite based aircraft traffic control system |
GB2317074B (en) * | 1996-09-09 | 1998-10-28 | I Co Global Communications | Communications apparatus and method |
US5995043A (en) * | 1996-12-06 | 1999-11-30 | The Boeing Company | Aircraft satellite navigation precision-approach system including CDMA datalink |
GB2320992B (en) * | 1997-01-03 | 2001-11-21 | Motorola Inc | Global aviation communication system |
US6560461B1 (en) | 1997-08-04 | 2003-05-06 | Mundi Fomukong | Authorized location reporting paging system |
US6940978B2 (en) * | 2001-05-02 | 2005-09-06 | The Boeing Company | Transmit authorization |
EP1804399B1 (de) * | 2005-12-30 | 2014-02-12 | Alcatel Lucent | Verfahren zur Synchronisierung von Basisstationen eines terrestrischen zellularen Kommunikationsnetzes |
US9084276B2 (en) * | 2009-09-11 | 2015-07-14 | Aerovironment, Inc. | Dynamic transmission control for a wireless network |
US10836483B2 (en) | 2009-09-11 | 2020-11-17 | Aerovironment, Inc. | Ad hoc dynamic data link repeater |
US10054686B2 (en) | 2015-12-31 | 2018-08-21 | Spire Global, Inc. | System and method for remote satellite and ground station constellation management |
CN112511212B (zh) * | 2020-11-17 | 2024-07-02 | 南京控维通信科技有限公司 | 一种基于星下点实现tdma的方法及系统 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3566267A (en) * | 1968-10-30 | 1971-02-23 | Communications Satellite Corp | Burst synchronization method and apparatus |
FR2135029B1 (de) * | 1971-04-06 | 1974-03-22 | Thomson Csf | |
US3818453A (en) * | 1971-08-11 | 1974-06-18 | Communications Satellite Corp | Tdma satellite communications system |
DE2203575C3 (de) * | 1972-01-26 | 1975-11-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schaltungsanordnung zur Synchronisation der Impulsbündel bei Nachrichtenübertragung nach dem Zeitmultiplexverfahren über Fernmeldesatelliten mit mehreren schmalbündelnden Richtantennen |
IT1037853B (it) * | 1974-05-21 | 1979-11-20 | Licentia Gmbh | Procedimento e disposizione dei circuiti per la sincronizzazione di quadri di impulsi nella trasmissione delle informazioni secondo il sistema multiplex a divisione di tempo attraverso satelliti di telecomunicazione |
US3982075A (en) * | 1974-09-09 | 1976-09-21 | The Post Office | Synchronization system for time division multiple access relay communications system |
US4001690A (en) * | 1975-08-15 | 1977-01-04 | Rca Corporation | Method and apparatus for compensation of doppler effects in satellite communication systems |
-
1976
- 1976-04-08 DE DE2615198A patent/DE2615198C3/de not_active Expired
-
1977
- 1977-03-28 US US05/781,911 patent/US4117267A/en not_active Expired - Lifetime
- 1977-04-07 IT IT22210/77A patent/IT1078090B/it active
- 1977-04-07 FR FR7710534A patent/FR2347836A1/fr not_active Withdrawn
- 1977-04-07 GB GB14819/77A patent/GB1555613A/en not_active Expired
- 1977-04-15 BE BE2055837A patent/BE853633A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB1555613A (en) | 1979-11-14 |
US4117267A (en) | 1978-09-26 |
IT1078090B (it) | 1985-05-08 |
DE2615198B2 (de) | 1978-12-21 |
FR2347836A1 (fr) | 1977-11-04 |
DE2615198C3 (de) | 1979-08-16 |
DE2615198A1 (de) | 1977-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: INTERNATIONAL STANDARD ELECTRIC CORP. Effective date: 19840415 |