Granted Patent
Utility
US 6,078,880 · App. 09/114,660
Speech coding system and method including voicing cut off frequency analyzer
Inventors:
Richard Louis Zinser, Mark Lewis Grabb, Steven R. Koch, Glen William Brooksby
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: Jul 13, 1998
Inventors
Richard Louis Zinser
Mark Lewis Grabb
Steven R. Koch
Glen William Brooksby
Assignee (at issue)
LOCKHEED MARTIN 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.