Granted Patent
Utility
US 6,198,822 · App. 09/034,960
Enhanced scrambling of slowly changing video signals
Inventors:
John F. Doyle, Stephen C. Snell, Mitchell Askenas, Ted Hartson
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Mar 4, 1998
Inventors
John F. Doyle
Stephen C. Snell
Mitchell Askenas
Ted Hartson
Assignee (at issue)
ICTV, INC.
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.