Granted Patent
Utility
US 5,608,799 · App. 08/401,014
Method and apparatus for scrambling and descrambling of video signal with edge fill
Inventors:
John O. Ryan, Ronald Quan, James R. Holzgrafe, Peter Wonfor
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Mar 8, 1995
Inventors
John O. Ryan
Ronald Quan
James R. Holzgrafe
Peter Wonfor
Assignee (at issue)
Macrovision Corporation
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.