Granted Patent
Utility
US 5,072,314 · App. 07/504,519
Image enhancement techniques using selective amplification of spatial frequency components
Inventor:
Tallis Young Chang
Patented Case
View Patent ↗
Granted: Dec 10, 1991
Filed: Apr 4, 1990
Inventor
Tallis Young Chang
Assignee (at issue)
Rockwell International 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.