Granted Patent
Utility
US 6,603,622 · App. 09/796,838
Disk drive employing a sync mark detector comprising a matched filter and a dual polarity correlator
Inventors:
Grant S. Christiansen, Mark David Hagen
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Feb 28, 2001
Inventors
Grant S. Christiansen
Mark David Hagen
Assignee (at issue)
WESTERN DIGITAL TECHNOLOGIES, INC.
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.