Hampshire; Randall D.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hampshire; Randall D..The latest application filed is for "suppression of seek repeatable runout".

Company Profile

0.14.2

Hampshire; Randall D. - Prior Lake MN
Hampshire; Randall D. - Agra OK
Hampshire; Randall D. - San Marcos TX
Hampshire; Randall D. - Edmond OK

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Suppression of seek repeatable runout Grant 8,730,614 - Wernow , et al. May 20, 2	2014-05-20
Suppression Of Seek Repeatable Runout App 20140063651 - Wernow; Josiah N. ; et al.	2014-03-06
Microactuator servo system in a disc drive Grant 6,768,610 - Morris , et al. July 27, 2	2004-07-27
Servo control using continuous position error signal with high order polynomial component Grant 6,574,068 - Hampshire , et al. June 3, 2	2003-06-03
Servo processor code evaluation using a virtual disc drive Grant 6,389,384 - Hampshire , et al. May 14, 2	2002-05-14
Method for adapting seeks of a disc drive transducer to the maximum actuator current available to accelerate and decelerate the transducer Grant 6,115,205 - Waugh , et al. September 5, 2	2000-09-05
Object positioning using discrete sliding mode control with variable parameters Grant 6,046,878 - Liu , et al. April 4, 2	2000-04-04
Compensating for variations in torque capability of voice coil motors Grant 5,835,302 - Funches , et al. November 10, 1	1998-11-10
Data track following method for disc drives Grant 5,777,816 - Hampshire , et al. July 7, 1	1998-07-07
Detection of mechanical defects in a disc drive using injected test signals Grant 5,654,841 - Hobson , et al. August 5, 1	1997-08-05
Method for reducing noise during seeks in a hard disk drive Grant 5,475,545 - Hampshire , et al. December 12, 1	1995-12-12
Correction of current feedback offset for disc drive servo systems Grant 5,329,409 - Hampshire July 12, 1	1994-07-12
Multi-task operating system for a disc drive Grant 5,305,447 - Hampshire April 19, 1	1994-04-19
Compensating for variations in torque capability of voice coil motors Grant 5,305,160 - Funches , et al. April 19, 1	1994-04-19

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