Granted Patent
Utility
US 5,533,133 · App. 08/037,946
Noise suppression in digital voice communications systems
Inventors:
Allan Lamkin, W. Robert Kepley, III, Prabhat K. Gupta, Adrian Morris
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Mar 26, 1993
Inventors
Allan Lamkin
W. Robert Kepley, III
Prabhat K. Gupta
Adrian Morris
Assignee (at issue)
Hughes Aircraft Company
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.