Granted Patent
Utility
US 4,143,396 · App. 05/765,563
Digital chrominance separating and processing system and method
Inventor:
Robert Mackenzie
Patented Case
View Patent ↗
Granted: Mar 6, 1979
Filed: Feb 4, 1977
Inventor
Robert Mackenzie
Assignee (at issue)
Ampex 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.