EP 0695051 A1 19960131 - Digital satellite transmission system
Title (en)
Digital satellite transmission system
Title (de)
Digitales Satellitenrundfunksystem
Title (fr)
Système d'émission numérique par satellite
Publication
Application
Priority
FR 9409438 A 19940729
Abstract (en)
The system includes a number of individual ground stations (E1-E4) located in different geographical positions. The ground stations transmit digital television signals via antennae (A1-A4) to a satellite (SAT) at a first rate. A satellite receiver dish (AR) collects the signals and passes them to a multiplexer (MMUX). The multiplexer receives the digital signals at the first rate, multiplexes the signal, and outputs the signals through a transmitter dish (AE) at a second, higher rate. The signals are then received by individual receiver satellite dishes. <IMAGE>
Abstract (fr)
L'invention concerne un système d'émission numérique par satellite comprenant une liaison envoyant des informations numériques à destination du satellite, ledit satellite réémettant un multiplex d'émission. Selon l'invention la liaison comporte une pluralité d'émetteurs individuels (E1...E4) dont chacun émet un signal d'émission à un premier débit correspondant à au moins un programme et en ce que le satellite (SAT) comporte un module multiplexeur embarqué (MMUX) combinant lesdits signaux d'émission pour former ledit multiplex d'émission à un deuxième débit plus élevé que le premier débit. <IMAGE>
IPC 1-7
IPC 8 full level
H04H 1/00 (2006.01); H04H 20/28 (2008.01); H04H 20/51 (2008.01); H04H 20/74 (2008.01); H04N 7/00 (2006.01); H04N 7/20 (2006.01); H04N 7/26 (2006.01); H04N 19/00 (2014.01); H04N 21/647 (2011.01)
CPC (source: EP US)
H04H 20/02 (2013.01 - EP US); H04H 20/28 (2013.01 - EP US); H04H 20/51 (2013.01 - EP US); H04H 20/74 (2013.01 - EP US)
Citation (search report)
- [X] DE 3200249 A1 19820812 - WESTERN ELECTRIC CO [US]
- [X] US 4145573 A 19790320 - ARNOLD HAMILTON W
- [A] DE 4034979 A1 19920507 - MESSERSCHMITT BOELKOW BLOHM [DE]
- [A] EP 0306918 A2 19890315 - NEC CORP [JP]
- [A] GB 2232561 A 19901212 - BRITISH AEROSPACE [GB]
Designated contracting state (EPC)
DE ES FR GB IT LU SE
DOCDB simple family (publication)
EP 0695051 A1 19960131; EP 0695051 B1 20031112; CA 2154123 A1 19960130; CA 2154123 C 20050906; DE 69532100 D1 20031218; DE 69532100 T2 20040909; ES 2208669 T3 20040616; FR 2723279 A1 19960202; FR 2723279 B1 19960906; JP H08298647 A 19961112; US 5712850 A 19980127
DOCDB simple family (application)
EP 95401703 A 19950718; CA 2154123 A 19950718; DE 69532100 T 19950718; ES 95401703 T 19950718; FR 9409438 A 19940729; JP 19349495 A 19950728; US 50906195 A 19950731