Granted Patent
Utility
US 5,608,466 · App. 08/360,292
Color picture synthesizer producing an accurate chroma-key despite variations in the intensity level of a designated color signal
Inventor:
Nobuya Nakamoto
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Dec 21, 1994
Inventor
Nobuya Nakamoto
Assignee (at issue)
NEC 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.