This definition appears somewhat frequently
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Samples in periodicals archive:
Links, articles and the definition of subscriber authorization system, sas, in regard to Interactive Television and Internet TV.
A subscriber authorization system includes an authorization control system and a plurality of terminal devices...
Digital Video Broadcasting Conditional Access Architecture. A Presentation for SJSU-CS265; Subscriber Authorization System (SAS) Enforcement of access control;
A subscriber authorization system arranged to maintain subscriber entitlement data separately from the subscriber identification data. The...