John F. Peruzzi

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Redwood City, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for disabling anti-copy protection system in v...
- Patent number RE40689
- Issue date Mar 31, 2009
- Macrovision Corporation
- Ronald Quan
- 386 - Motion video signal processing for recording or reproducing
Information Patent Grant
Method and apparatus for disabling anti-copy protection system in v...
- Patent number 5,194,965
- Issue date Mar 16, 1993
- Macrovision Corporation
- Ronald Quan
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method and apparatus for disabling anti-copy protection system in v...
- Patent number 5,157,510
- Issue date Oct 20, 1992
- Macrovision Corporation
- Ronald Quan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE