Granted Patent
Utility
US 4,829,378 · App. 07/204,626
Sub-band coding of images with low computational complexity
Inventor:
Didier LeGall
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Jun 9, 1988
Inventor
Didier LeGall
Assignee (at issue)
Bell Communications Research, Inc.
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.