Granted Patent
Utility
US 5,680,508 · App. 08/060,710
Enhancement of speech coding in background noise for low-rate speech coder
Inventor:
Yu-Jih Liu
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: May 12, 1993
Inventor
Yu-Jih Liu
Assignee (at issue)
ITT 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.