Granted Patent
Utility
US 6,614,907 · App. 09/484,947
Echo canceller employing dual-H architecture having variable adaptive gain settings
Inventors:
Kenneth P. Laberteaux, Richard C. Younce, Bruce E. Dunne, David Farrell
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Jan 18, 2000
Inventors
Kenneth P. Laberteaux
Richard C. Younce
Bruce E. Dunne
David Farrell
Assignee (at issue)
Tellabs Operations, 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.