Inventor
WONFOR PETER J
US13 patents
⚠️ This page may combine multiple inventors who share the name “WONFOR PETER J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MACROVISION CORP
11 patentsUS6381747B1Apr 30, 2002
Method for controlling copy protection in digital video networks
MACROVISION CORP407 citations96
US5844988ADec 1, 1998
Method and apparatus for scrambling and descrambling of video signal with edge fill
MACROVISION CORP28 citations96
US5504815AApr 2, 1996
Method and apparatus for scrambling and descrambling
MACROVISION CORP36 citations96
US5583936ADec 10, 1996
Video copy protection process enhancement to introduce horizontal and vertical picture distortions
MACROVISION CORP67 citations95
US5841863ANov 24, 1998
Method and apparatus for scrambling and descrambling of video signals with edge fill
MACROVISION CORP18 citations92
US5608799AMar 4, 1997
Method and apparatus for scrambling and descrambling of video signal with edge fill
MACROVISION CORP24 citations92
US5438620AAug 1, 1995
Method and apparatus for scrambling and descrambling of video signal with edge fill
MACROVISION CORP21 citations92
US7620178B2Nov 17, 2009
Copy protection for video signal added pulses
MACROVISION CORP8 citations90
US7395545B2Jul 1, 2008
Method and apparatus for providing copy protection using a transmittal mode command
MACROVISION CORP19 citations90
US5579390ANov 26, 1996
Method and apparatus for vertically scrambling and descrambling of video signals
MACROVISION CORP17 citations82
US5581307ADec 3, 1996
Method and apparatus for scrambling and descrambling of video signals with edge fill
MACROVISION CORP3 citations74