Granted Patent
Utility
US 4,802,221 · App. 06/887,492
Digital system and method for compressing speech signals for storage and transmission
Inventor:
Mahmoud K. Jibbe
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Jul 21, 1986
Inventor
Mahmoud K. Jibbe
Assignee (at issue)
NCR Corporation
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.