Granted Patent
Utility
US 5,457,783 · App. 07/927,137
Adaptive speech coder having code excited linear prediction
Inventor:
Harprit Singh Chhatwal
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Aug 7, 1992
Inventor
Harprit Singh Chhatwal
Assignee (at issue)
Pacific Communication Sciences, 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.