Granted Patent
Utility
US 5,752,229 · App. 08/671,746
Intelligent near-end speech detection
Inventors:
Donald L. Duttweiler, Toshiro Kawahara, Cheng Kim, Toshio Miki
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Jun 28, 1996
Inventors
Donald L. Duttweiler
Toshiro Kawahara
Cheng Kim
Toshio Miki
Assignee (at issue)
LUCENT TECHNOLOGIES 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.