Granted Patent
Utility
US 6,021,197 · App. 08/665,605
Method and apparatus for controlling the operation of a signal decoder in a broadcasting system
Inventors:
Manfred von Willich, Simon Paul Ashley Rix
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Jun 18, 1996
Inventors
Manfred von Willich
Simon Paul Ashley Rix
Assignee (at issue)
IRDETO B.V.
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.