Granted Patent
Utility
US 6,456,935 · App. 09/537,005
Voice guidance intonation in a vehicle navigation system
Inventor:
Yik-Mien Ng
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Mar 28, 2000
Inventor
Yik-Mien Ng
Assignee (at issue)
Horizon Navigation, 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.