Granted Patent
Utility
US 6,507,734 · App. 09/216,086
Method and system which uses sound wave based communication to generate a secure wireless link between a handset and base station
Inventors:
Doug Berger, Norman Beamish, Xiaohua Joseph Xie
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Dec 18, 1998
Inventors
Doug Berger
Norman Beamish
Xiaohua Joseph Xie
Assignee (at issue)
Skyworks Solutions, 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.