Granted Patent
Utility
US 4,933,784 · App. 07/265,189
Automatic head position tracking system for video signals recorded in a segmented format
Inventors:
Reginald W. Oldershaw, Robert B. Steele
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Oct 31, 1988
Inventors
Reginald W. Oldershaw
Robert B. Steele
Assignee (at issue)
Ampex 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.