Granted Patent
Utility
US 6,469,732 · App. 09/187,081
Acoustic source location using a microphone array
Inventors:
Pi Sheng Chang, Aidong Ning, Michael Lambert, Wayne J. Haas
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Nov 6, 1998
Inventors
Pi Sheng Chang
Aidong Ning
Michael Lambert
Wayne J. Haas
Assignee (at issue)
VTEL 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.