Granted Patent
Utility
US 5,841,863 · App. 08/401,015
Method and apparatus for scrambling and descrambling of video signals with edge fill
Inventors:
John O. Ryan, James R. Holzgrafe
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Mar 8, 1995
Inventors
John O. Ryan
James R. Holzgrafe
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.