Granted Patent
Utility
US 5,659,581 · App. 08/354,978
Modem receiver pre-emphasis
Inventors:
William L. Betts, Keith A. Souders
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Dec 13, 1994
Inventors
William L. Betts
Keith A. Souders
Assignee (at issue)
PARADYNE CORPORATION
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.