Granted Patent
Utility
US 6,442,278 · App. 09/580,203
Voice-to-remaining audio (VRA) interactive center channel downmix
Inventors:
Michael A. Vaudrey, William R. Saunders
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: May 26, 2000
Inventors
Michael A. Vaudrey
William R. Saunders
Assignee (at issue)
Hearing Enhancement Group
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.