Granted Patent
Utility
US 4,400,720 · App. 06/271,034
Dynamic de-emphasis compensation system
Inventor:
Werner Hinn
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Jun 4, 1981
Inventor
Werner Hinn
Assignee (at issue)
RCA 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.