MediaGuard is aconditional access system fordigital television developed bySECA (Société Européenne de Contrôle d'Accès; renamed to Canal+ Technologies SA) (CEOFrançois Carayol), a subsidiary of Canal+ Group, sold toThomson (CEOThierry Breton). Then Canal+ Technologies SA was broken in two pieces byThomson in 2003, the MediaGuard sold toNagra France and theMediaHighway to NDS France.
MediaGuard has been on the European market since 1996. It is also used in Middle-East and Asia. MediaGuard is notably used byCanal+.
Manufacturers which incorporate MediaGuard into their equipment are notablyHitachi, Ltd.,Humax,JVC,Kenwood Electronics,Nokia,Pace Micro Technology,Philips,Pioneer Corporation,Sagem,Samsung Electronics,Sony Corporation, Strong,Thomson, andToshiba.
The original MediaGuard system has been broken by the end of the 1990s, allegedly by rivalNDS Group, which resulted in new cards being distributed to customers in 2002.[1][2]
This original version of MediaGuard in the set-top-box is composed of two elements:
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