Granted Patent
Utility
US 6,445,686 · App. 09/146,788
Method and apparatus for improving the quality of speech signals transmitted over wireless communication facilities
Inventors:
Joseph Hoffbeck, Martin Howard Meyers, Al-Nasir Premji, Ahmed A. Tarraf, Kevin G. Tracy
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Sep 3, 1998
Inventors
Joseph Hoffbeck
Martin Howard Meyers
Al-Nasir Premji
Ahmed A. Tarraf
Kevin G. Tracy
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.