Granted Patent
Utility
US 4,831,447 · App. 07/121,375
Method and apparatus for anti-aliasing an image boundary during video special effects
Inventor:
David E. Lake, Jr.
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Nov 16, 1987
Inventor
David E. Lake, Jr.
Assignee (at issue)
GRASS VALLEY LIMITED
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.