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Alain Gelly
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Paris, FR
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last 30 patents
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Patent Grant
Method and system of controlling the mode of access to signals, in...
Patent number
5,621,792
Issue date
Apr 15, 1997
Telediffusion de France
Roger Charton
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Process for the broadcasting of conditional access programs permitt...
Patent number
5,442,701
Issue date
Aug 15, 1995
France Telecom Establissement Autonome de Droit Public
Louis Guillou
H04 - ELECTRIC COMMUNICATION TECHNIQUE