Granted Patent
Utility
US 6,285,798 · App. 09/210,107
Automatic tone adjustment by contrast gain-control on edges
Inventor:
Hsien-Che Lee
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Dec 11, 1998
Inventor
Hsien-Che Lee
Assignee (at issue)
EASTMAN KODAK COMPANY
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.