Thales

Alcatel Lucent

Régis Lenormand

Nicolas Chuberre

Ronan Sauleau

Jean Farineau

Erwan Corbel

Laurent Roullet

Christian Rigal

Jean-Luc Almeida

Luc Delamotte

Xavier Denis

Antonin Hirsch

Olivier Maillet

Jean-Michel Mateus

Alejandro Valero-Nogueria

Jacques Decroix

Gérard Raguenet

Grégory Maman

Gilles Garnier

Jérome Fabre

Rémi Schneegans

Mickael Haddad

Jean-Michel Merour

Mauro Ettorre

José Ignacio Herranz-Herruzo

A broadband multi-beam satellite radiocommunication system configured to implement a scheme for re-use of frequencies from a total band allocated to an uplink comprises a satellite with a multi-beam receive antenna that forms adjacent reception spots of a terrestrial coverage. Each reception spot consists of a central inner zone and a peripheral zone. Each central inner zone is a cellular pattern identical except for a scale factor to geographical cells wherein the principal frequency sub-bands of a bundle of separate or adjacent principal sub-bands are unitarily distributed and the combination of which is equal to a principal band, included in the total band.

Broadband multi-beam satellite radiocommunication system configured for improved frequency re-use and improved frequency re-use method

An onboard directional plane antenna comprises at least one array of radiating-slot waveguides comprising an alternating succession of three superposed metallic plates and of two dielectric substrates. The two substrates each comprise at least four adjacent waveguides, corresponding and communicating with one another pairwise by way of coupling slots. Each waveguide of the upper substrate furthermore comprises a plurality of radiating slots passing through the upper metallic plate, all the radiating slots of one and the same waveguide being parallel to one another and oriented in one and the same direction, the radiating slots of two adjacent waveguides being disposed in chevrons. Each waveguide of the lower substrate comprises an internal individual feed circuit comprising an individual electronic circuit for phase shifting and amplification.

On-board directional flat-plate antenna, vehicle comprising such an antenna, and satellite telecommunication system comprising such a vehicle

A relay for use in telecommunications equipment, said relay comprising:

Relay including a mass memory for temporarily storing differed-time information streams

The invention relates to a multiplexing device comprising a data compressor. The compressed data block leaving said compressor occupies a particular bandwidth. According to the invention, a bandwidth prediction unit calculates said bandwidth and deduces from it the available bandwidth for conveyance in a time space dedicated to Internet traffic. The invention also relates to a multiplexing device and a multiplexing/demultiplexing system. Particular application in a satellite telecommunication system.

Multiplexing device, a demultiplexing device, and a multiplexing/demultiplexing system

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Blagnac, France

Régis Lenormand