Granted Patent
Utility
US 5,907,623 · App. 08/562,287
Audio noise reduction system implemented through digital signal processing
Inventors:
Laura Mercs, Paul M. Embree
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Nov 22, 1995
Inventors
Laura Mercs
Paul M. Embree
Assignees (at issue)
SONY CORPORATION OF JAPAN
SONY PICTURES ENTERTAINMENT 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.