Ferris; Timothy A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ferris; Timothy A..The latest application filed is for "data storage device concurrently controlling and sensing a secondary actuator for actuating a head over a disk".

Company Profile

1.48.4

Ferris; Timothy A. - Mission Viejo CA
Ferris; Timothy A. - Lake Forest CA
Ferris; Timothy A. - Simi Valley CA

*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
Data storage device regulating BEMF power voltage during power failure Grant 10,242,698 - Byoun , et al.	2019-03-26
Data storage device detecting spindle motor position at increased resolution using mutual inductive sense Grant 10,242,706 - Johnson , et al.	2019-03-26
Data storage device employing predictive oversampling for servo control Grant 10,176,835 - Byoun , et al. J	2019-01-08
Current balancing circuit for multiple supply voltage systems Grant 10,013,032 - Ferris , et al. July 3, 2	2018-07-03
Data storage device employing smart braking to unload multiple voice coil motors Grant 9,972,348 - Ferris , et al. May 15, 2	2018-05-15
Shock sensor resonance detection for notch filter tuning Grant 9,832,050 - Eklund , et al. November 28, 2	2017-11-28
Analog-to-digital conversion circuitry with real-time adjusted gain and resolution Grant 9,793,912 - Ferris , et al. October 17, 2	2017-10-17
Data storage device measuring resonant frequency of a shock sensor by inserting the shock sensor into an oscillator circuit Grant 9,620,160 - Byoun , et al. April 11, 2	2017-04-11
Data Storage Device Concurrently Controlling And Sensing A Secondary Actuator For Actuating A Head Over A Disk App 20170092310 - FERRIS; TIMOTHY A. ; et al.	2017-03-30
Data storage device measuring resonant frequency of a shock sensor by applying differential excitation and measuring oscillation Grant 9,564,162 - Byoun , et al. February 7, 2	2017-02-07
Power control module for data storage device Grant 9,484,733 - Ferris , et al. November 1, 2	2016-11-01
Data storage device concurrently controlling and sensing a secondary actuator for actuating a head over a disk Grant 9,437,231 - Ferris , et al. September 6, 2	2016-09-06
Data storage device compensating for fabrication tolerances when measuring spindle motor current Grant 9,396,751 - Byoun , et al. July 19, 2	2016-07-19
Power failure management in disk drives Grant 9,390,749 - Ferris , et al. July 12, 2	2016-07-12
Self-heating integrated circuit Grant 9,275,927 - Ferris , et al. March 1, 2	2016-03-01
Power Failure Management In Disk Drives App 20150310886 - FERRIS; TIMOTHY A. ; et al.	2015-10-29
Disk drive charging capacitor using motor supply voltage during power failure Grant 9,093,105 - Ferris , et al. July 28, 2	2015-07-28
Data storage device detecting fly height instability of head during load operation based on microactuator response Grant 9,076,473 - Liu , et al. July 7, 2	2015-07-07
Detecting startup fault of SDRAM voltage regulator Grant 9,063,714 - Ryan , et al. June 23, 2	2015-06-23
Power architecture for low power modes in storage devices Grant 9,058,834 - Ferris , et al. June 16, 2	2015-06-16
Disk drive employing digital accumulators to limit velocity and/or acceleration of microactuator Grant 9,025,273 - Ferris , et al. May 5, 2	2015-05-05
Data storage device compensating for repeatable disturbance when commutating a spindle motor Grant 8,982,501 - Nicholls , et al. March 17, 2	2015-03-17
Disk drive implementing hysteresis for primary shock detector based on a more sensitive secondary shock detector Grant 8,947,819 - Ferris , et al. February 3, 2	2015-02-03
Disk drive adjusting fly height based on air density measured from rate of temperature change Grant 8,947,822 - Rice , et al. February 3, 2	2015-02-03
Data storage device comprising dual mode independent/parallel voltage regulators Grant 8,937,404 - Ferris January 20, 2	2015-01-20
Data storage device reducing spindle motor voltage boost during power failure Grant 8,922,940 - Ferris December 30, 2	2014-12-30
Data storage device adjusting range of microactuator digital-to-analog converter based on operating temperature Grant 8,913,342 - Liu , et al. December 16, 2	2014-12-16
Data storage device employing cascaded voltage regulators during power failure Grant 8,767,354 - Ferris , et al. July 1, 2	2014-07-01
Voltage quadrupler comprising a second charging capacitor charged using a first charging capacitor Grant 8,717,699 - Ferris May 6, 2	2014-05-06
Disk Drive Charging Capacitor Using Motor Supply Voltage During Power Failure App 20130148240 - FERRIS; TIMOTHY A. ; et al.	2013-06-13
Output capacitor current as feedback to control a hysteretic voltage regulator Grant 8,358,114 - Ferris , et al. January 22, 2	2013-01-22
Self-heating integrated circuit Grant 8,358,145 - Ferris , et al. January 22, 2	2013-01-22
Soft start sequencer for starting multiple voltage regulators Grant 8,145,934 - Ferris , et al. March 27, 2	2012-03-27
Continuous digital offset cancellation Grant 8,081,395 - Ferris December 20, 2	2011-12-20
Disk drive adjusting gain of shock detector relative to resonant frequency amplitude Grant 7,852,588 - Ferris , et al. December 14, 2	2010-12-14
Disk drive compensating for rotational vibrations, physical shocks, and thermal popping Grant 7,471,483 - Ferris , et al. December 30, 2	2008-12-30
Disk drive employing commutation phase modulation and current modulation of a spindle motor Grant 6,972,539 - Codilian , et al. December 6, 2	2005-12-06
Methods, systems and devices for converting the kinetic energy of a rotating disk drive spindle motor into electrical energy to charge a rechargeable battery Grant 6,865,049 - Codilian , et al. March 8, 2	2005-03-08
Disk drive comprising a programmable inverting voltage regulator configured relative to the disk drive's mode of operation Grant 6,788,483 - Ferris , et al. September 7, 2	2004-09-07
Disk drive employing spindle motor commutation time variation for reducing acoustic noise Grant 6,493,169 - Ferris , et al. December 10, 2	2002-12-10
Rapid prototyping apparatus with enhanced thermal and/or vibrational stability for production of three dimensional objects Grant 6,261,077 - Bishop , et al. July 17, 2	2001-07-17
Control for gas metal arc welding system Grant 4,794,232 - Kimbrough , et al. December 27, 1	1988-12-27
High performance incremental motion system using a closed loop stepping motor Grant 4,591,774 - Ferris , et al. May 27, 1	1986-05-27

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