Method of copy protecting signals

Details Method of copy protecting signals Method of copy protecting signals

H - Electricity

04

L

H04L 12/22 (2006.01) G06F 12/14 (2006.01) G11B 20/00 (2006.01) H04L 9/00 (2006.01) H04N 5/913 (2006.01) H04N 7/16 (2006.01)

Patent

CA 2434702

Embodiments of the present invention provide for the copy protection of distributed material after conditional access is applied, regardless of where the material is distributed. The solutions described provide the advantage of being sufficiently simple in implementation to qualify as "curb high" solutions. "Curb high" solutions provide a range of security from minimal security to a high level of security while requiring relatively fewer system resources to implement than prior approaches.

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