Granted Patent
Utility
US 5,734,792 · App. 08/161,796
Enhancement method for a coarse quantizer in the ATRAC
Inventor:
Do Hui Teh
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Dec 6, 1993
Inventor
Do Hui Teh
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.