Granted Patent
Utility
US 6,157,679 · App. 08/954,348
Method of adding encryption/encoding element to the modulation/demodulation process
Inventor:
Christopher L. Johnson
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Oct 17, 1997
Inventor
Christopher L. Johnson
Assignee (at issue)
Motorola, 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.