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Inventor
CORCORAN JEREMY J
GB
2 patents
Patents
2 patents
US5583936A
Dec 10, 1996
Video copy protection process enhancement to introduce horizontal and vertical picture distortions
MACROVISION CORP
67 citations
95
US7620178B2
Nov 17, 2009
Copy protection for video signal added pulses
MACROVISION CORP
8 citations
90