Granted Patent
Utility
US 6,604,071 · App. 09/499,985
Speech enhancement with gain limitations based on speech activity
Inventors:
Richard Vandervoort Cox, Rainer Martin
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Feb 8, 2000
Inventors
Richard Vandervoort Cox
Rainer Martin
Assignee (at issue)
AT&T CORP.
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.