Granted Patent
Utility
US 6,208,970 · App. 09/216,971
Method and system for estimation of a source of a voice signal
Inventor:
Kandiah Ramanan
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Dec 21, 1998
Inventor
Kandiah Ramanan
Assignee (at issue)
Nortel Networks Limited
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.