Granted Patent
Utility
US 6,480,819 · App. 09/258,115
Automatic search of audio channels by matching viewer-spoken words against closed-caption/audio content for interactive television
Inventors:
Robert Boman, Jean-Claude Junqua
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Feb 25, 1999
Inventors
Robert Boman
Jean-Claude Junqua
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.