Granted Patent
Utility
US 4,631,746 · App. 06/466,250
Compression and expansion of digitized voice signals
Inventors:
Lawrence E. Bergeron, Daniel F. Daly, Elaine C. Grosso
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Feb 14, 1983
Inventors
Lawrence E. Bergeron
Daniel F. Daly
Elaine C. Grosso
Assignee (at issue)
Wang Laboratories, 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.