IP Library › Granted Patent US 5,157,510
Granted Patent Utility
US 5,157,510 · App. 07/631,858

Method and apparatus for disabling anti-copy protection system in video signals using pulse narrowing

Inventors: Ronald Quan, John F. Peruzzi
Patented Case View Patent ↗
Granted: Oct 20, 1992 Filed: Dec 20, 1990
Inventors
Ronald Quan
John F. Peruzzi
Assignee (at issue)
Macrovision Corporation

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Quick Facts
Patent No.
US 5,157,510
App. No.
07/631,858
Filed
1990-12-20
Granted
1992-10-20
Kind
A