Inventor

NELSON DEREK T

US3 patents

⚠️ This page may combine multiple inventors who share the name “NELSON DEREK T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MACROVISION CORP

2 patents

US6381747B1Apr 30, 2002

Method for controlling copy protection in digital video networks

MACROVISION CORP407 citations96

US7395545B2Jul 1, 2008

Method and apparatus for providing copy protection using a transmittal mode command

MACROVISION CORP19 citations90

WONFOR PETER J

1 patent

US8250597B2Aug 21, 2012

Method and apparatus for providing copy protection using a transmittal mode command

WONFOR PETER J3 citations54