Granted Patent
Utility
US 5,602,692 · App. 08/320,021
Sampled position error signal demodulation system for banded data disk drives
Inventors:
David A. Freitas, Shih-Ming Shih
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Oct 7, 1994
Inventors
David A. Freitas
Shih-Ming Shih
Assignee (at issue)
International Business Machines 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.