Granted Patent
Utility
US 5,590,194 · App. 08/287,800
Method of and apparatus for scrambling a video signal with full network transmission and recording capability
Inventor:
John O. Ryan
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Aug 9, 1994
Inventor
John O. Ryan
Assignee (at issue)
Macrovision Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.