Granted Patent
Utility
US 5,617,508 · App. 08/105,755
Speech detection device for the detection of speech end points based on variance of frequency band limited energy
Inventor:
Benjamin Reaves
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Aug 12, 1993
Inventor
Benjamin Reaves
Assignees (at issue)
Panasonic Technologies, Inc.
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.