Granted Patent
Utility
US 5,097,331 · App. 07/573,242
Multiple block-size transform video coding using an asymmetric sub-band structure
Inventors:
Ting-Chung Chen, Paul Fleischer
Patented Case
View Patent ↗
Granted: Mar 17, 1992
Filed: Aug 24, 1990
Inventors
Ting-Chung Chen
Paul Fleischer
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.