Granted Patent
Utility
US 6,163,420 · App. 09/156,020
Interleaved analog tracking timing and gain feedback loops for partial response maximum likelihood (PRML) data detection for direct access storage device (DASD)
Inventor:
Joe M. Poss
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Sep 17, 1998
Inventor
Joe M. Poss
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.