Granted Patent
Utility
US 6,507,652 · App. 09/483,988
Echo canceller employing dual-H architecture having improved non-linear echo path detection
Inventor:
Kenneth P. Laberteaux
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Jan 18, 2000
Inventor
Kenneth P. Laberteaux
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.