Granted Patent
Utility
US 5,664,055 · App. 08/482,715
CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
Inventor:
Peter Kroon
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: Jun 7, 1995
Inventor
Peter Kroon
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.