Device for broadcasting digital information via satellite

Details Device for broadcasting digital information via satellite Device for broadcasting digital information via satellite

1997-09-17

2000-10-17

Bost, Dwayne D.

Multiplex communications

Communication over free space

Repeater

370326, 455 32, 455 121, H04B 7185

Patent

active

061342254

ABSTRACT:
The device comprises at least one set of links that send packet formatted digital information to the satellite on at least two different frequencies, at least one second set of links on board the satellite receives the digital information packets, at least one packet time multiplexing module connected both to output of the second set of links and to input of a digital information formatting module comprising a scrambler connected to input of a part of a broadcasting DVB-S chain beginning by a convolutive interleaving block and terminating by a QPSK modulator, at least one clock on board the satellite, this clock, working in asynchronism with all earth clocks and driving the satellite-borne assembly.

REFERENCES:
patent: 4145573 (1979-03-01), Arnold
patent: 4425639 (1984-01-01), Acampora et al.
patent: 5506903 (1996-04-01), Yamashita
patent: 5712850 (1998-01-01), Elia et al.
patent: 5721778 (1998-02-01), Kubota et al.
patent: 5838668 (1998-11-01), Okada et al.
SMPTE Journal, vol. 103, No. 11, Nov. 01, 1994, US, pp. 741-747, XP000475. 0
Reimers, U., "Concept of a European System for the Transmission of Digitized Television Signals via Satellite".

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