Granted Patent
Utility
US 6,041,290 · App. 08/969,735
Method of adaptively adjusting the coefficients of a digital filter in an echo canceller
Inventors:
Hans Jurgen Matt, Michael D. Walker, Uwe Ackermann
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Nov 13, 1997
Inventors
Hans Jurgen Matt
Michael D. Walker
Uwe Ackermann
Assignee (at issue)
ALCATEL
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.