Inventor
ELLIS TIMOTHY F
US16 patents
Patents
16 patentsUS6181505B1Jan 30, 2001
Synchronous digital demodulator with integrated read and servo channels
SEAGATE TECHNOLOGY LLC104 citations97
US7119981B2Oct 10, 2006
Method and apparatus for tracking radially-dependent repeatable run-out
SEAGATE TECHNOLOGY LLC24 citations92
US6469849B1Oct 22, 2002
Field ratioing demodulation circuit for a null-type servo pattern
SEAGATE TECHNOLOGY LLC34 citations92
US6426845B1Jul 30, 2002
Asynchronous analog demodulator and method for a null-type servo pattern
SEAGATE TECHNOLOGY LLC50 citations92
US6392834B1May 21, 2002
Concentric spacing of virtual data tracks using run-out compensation
SEAGATE TECHNOLOGY LLC27 citations92
US6249392B1Jun 19, 2001
Head instability detection method and apparatus
SEAGATE TECHNOLOGY LLC22 citations92
US6243224B1Jun 5, 2001
Asynchronous digital demodulator and method for a null-type servo pattern
SEAGATE TECHNOLOGY LLC45 citations92
US6195220B1Feb 27, 2001
Method and apparatus utilizing field ratioing demodulation techniques for a null-type servo pattern
SEAGATE TECHNOLOGY LLC33 citations92
US6510015B2Jan 21, 2003
Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same
SEAGATE TECHNOLOGY LLC39 citations91
US6882487B2Apr 19, 2005
Compensation for timing variation in disc drives employing servo tracking systems
SEAGATE TECHNOLOGY LLC15 citations83
US10255943B1Apr 9, 2019
Independent head, dual reader control logic
SEAGATE TECHNOLOGY LLC8 citations82
US9865291B1Jan 9, 2018
Primary and secondary servo timing gates used with simultaneously operating readers
SEAGATE TECHNOLOGY LLC3 citations68
US11646057B2May 9, 2023
Estimating recording head fly height using machine learning
SEAGATE TECHNOLOGY LLC0 citations62
US6327108B1Dec 4, 2001
Filter calibration method in a disc drive and apparatus
SEAGATE TECHNOLOGY LLC2 citations62
US9373355B1Jun 21, 2016
Compensating for interference via a multi-reader system
SEAGATE TECHNOLOGY LLC2 citations61
US7589930B2Sep 15, 2009
Zone based repeated runout error compensation
SEAGATE TECHNOLOGY LLC4 citations61