An improved pay-TV-system

An improved pay-TV-system, comprising a centrally located obfuscation signal generator, adapted to periodically pass to at least some TV-channels obfuscation signals, and control and communication devices (12) to set which ones of the channels at the respective subscriber where unobfuscated receivin...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	JAGFORS, ULF, LJUNGDAHL, ARNE, FAGERLIN, PETER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
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