Pay-per-view (PPV) Copy Protection In The Cable System Environment (1989)

By Graham S. Stubbs, Executive Vice President, Eidak Corporation

Video copy protection has become an essential component of cable's PPV technology infrastructure necessary for PPV to attract the competitive programming required for healthy growth. A specially designed modification of the PPV video signal assures non-recordability of copy protected programming, but still permits normal viewing operation of television receivers. The signal modification is optimized for compatible operation with cable system plant, with particular emphasis on the addressable descramblers used to control viewing of authorized PPV programs. Particular emphasis is placed on copy protection throughout cable plant, including distribution to multiple hubs.

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