Granted Patent
Utility
US 4,897,832 · App. 07/297,668
Digital speech interpolation system and speech detector
Inventors:
Takao Suzuki, Yuichi Shiraki, Osamu Noguchi, Yasuo Shoji
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Jan 17, 1989
Inventors
Takao Suzuki
Yuichi Shiraki
Osamu Noguchi
Yasuo Shoji
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., 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.