Granted Patent
Utility
US 6,337,907 · App. 09/717,932
Echo canceller employing dual-H architecture having improved coefficient transfer
Inventors:
Kenneth P. Laberteaux, Richard C. Younce
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Nov 21, 2000
Inventors
Kenneth P. Laberteaux
Richard C. Younce
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.