Granted Patent
Utility
US 6,542,604 · App. 09/144,820
Scaled impedance replica for echo attenuation in digital transmission systems
Inventors:
Thomas Blon, Martin Gröpl, Michael Moyal, Daniel M. Joffe
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Aug 31, 1998
Inventors
Thomas Blon
Martin Gröpl
Michael Moyal
Daniel M. Joffe
Assignee (at issue)
Infineon Technologies AG
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.