Granted Patent
Utility
US 4,823,209 · App. 07/116,989
1,7,2,3 Encoding/decoding employing 3/2 frequency division
Inventor:
Vadim B. Minuhin
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Nov 5, 1987
Inventor
Vadim B. Minuhin
Assignee (at issue)
Magnetic Peripherals, 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.