Granted Patent
Utility
US 5,442,407 · App. 08/215,683
Video signal noise reduction system using time-varying filter coefficients
Inventor:
Siu-Leong Iu
Patented Case
View Patent ↗
Granted: Aug 15, 1995
Filed: Mar 22, 1994
Inventor
Siu-Leong Iu
Assignee (at issue)
Matsushita Electric Corporation of America
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.