Distributed Processing Encoder for Pay Per View (1993)

By Larry K. Moreland, Zenith Electronics Corporat1on

This paper describes a distributed processing encoder for efficient conditional access control of Pay Per View (PPV) events. The encoder provides rapid deauthorization of subscriber terminals at the end of each PPV event. This permits immediate reuse of a program tag without loss of signal security. This encoder becomes an active part of a distributed intelligence conditional access control system in the CATV headend instead of the conventional passive encoder systems currently in use.

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