Granted Patent
Utility
US 5,644,637 · App. 08/534,723
Method and apparatus for recovering synchronizing signals in scrambled television pictures
Inventor:
Henry S. Landgraf
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Sep 27, 1995
Inventor
Henry S. Landgraf
Assignee (at issue)
General Instrument Corporation of Delaware
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.