Timothy A. Ferris

Person

Mission Viejo, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Data storage device detecting spindle motor position at increased r...
- Patent number 10,242,706
- Issue date Mar 26, 2019
- Western Digital Technologies, Inc.
- Brian A. Johnson
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device regulating BEMF power voltage during power failure
- Patent number 10,242,698
- Issue date Mar 26, 2019
- Western Digital Technologies, Inc.
- Jaesoo Byoun
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device employing predictive oversampling for servo con...
- Patent number 10,176,835
- Issue date Jan 8, 2019
- Western Digital Technologies, Inc.
- Jaesoo Byoun
- G11 - INFORMATION STORAGE
Information Patent Grant
Current balancing circuit for multiple supply voltage systems
- Patent number 10,013,032
- Issue date Jul 3, 2018
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Data storage device employing smart braking to unload multiple voic...
- Patent number 9,972,348
- Issue date May 15, 2018
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Shock sensor resonance detection for notch filter tuning
- Patent number 9,832,050
- Issue date Nov 28, 2017
- Western Digital Technologies, Inc.
- Erik J. Eklund
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Analog-to-digital conversion circuitry with real-time adjusted gain...
- Patent number 9,793,912
- Issue date Oct 17, 2017
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Data storage device measuring resonant frequency of a shock sensor...
- Patent number 9,620,160
- Issue date Apr 11, 2017
- Jaesoo Byoun
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device measuring resonant frequency of a shock sensor...
- Patent number 9,564,162
- Issue date Feb 7, 2017
- Western Digital Technologies, Inc.
- Jaesoo Byoun
- G11 - INFORMATION STORAGE
Information Patent Grant
Power control module for data storage device
- Patent number 9,484,733
- Issue date Nov 1, 2016
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Data storage device concurrently controlling and sensing a secondar...
- Patent number 9,437,231
- Issue date Sep 6, 2016
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device compensating for fabrication tolerances when me...
- Patent number 9,396,751
- Issue date Jul 19, 2016
- Western Digital Technologies, Inc.
- Jaesoo Byoun
- G11 - INFORMATION STORAGE
Information Patent Grant
Power failure management in disk drives
- Patent number 9,390,749
- Issue date Jul 12, 2016
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Self-heating integrated circuit
- Patent number 9,275,927
- Issue date Mar 1, 2016
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G01 - MEASURING TESTING
Information Patent Grant
Disk drive charging capacitor using motor supply voltage during pow...
- Patent number 9,093,105
- Issue date Jul 28, 2015
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device detecting fly height instability of head during...
- Patent number 9,076,473
- Issue date Jul 7, 2015
- Western Digital Technologies, Inc.
- Yanning Liu
- G11 - INFORMATION STORAGE
Information Patent Grant
Detecting startup fault of SDRAM voltage regulator
- Patent number 9,063,714
- Issue date Jun 23, 2015
- Western Digital Technologies, Inc.
- Robert P. Ryan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Power architecture for low power modes in storage devices
- Patent number 9,058,834
- Issue date Jun 16, 2015
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive employing digital accumulators to limit velocity and/or...
- Patent number 9,025,273
- Issue date May 5, 2015
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device compensating for repeatable disturbance when co...
- Patent number 8,982,501
- Issue date Mar 17, 2015
- Western Digital Technologies, Inc.
- Michael T. Nicholls
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive implementing hysteresis for primary shock detector based...
- Patent number 8,947,819
- Issue date Feb 3, 2015
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive adjusting fly height based on air density measured from...
- Patent number 8,947,822
- Issue date Feb 3, 2015
- Western Digital Technologies, Inc.
- Alan P. Rice
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device comprising dual mode independent/parallel volta...
- Patent number 8,937,404
- Issue date Jan 20, 2015
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device reducing spindle motor voltage boost during pow...
- Patent number 8,922,940
- Issue date Dec 30, 2014
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device adjusting range of microactuator digital-to-ana...
- Patent number 8,913,342
- Issue date Dec 16, 2014
- Western Digital Technologies, Inc.
- Yanning Liu
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device employing cascaded voltage regulators during po...
- Patent number 8,767,354
- Issue date Jul 1, 2014
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Voltage quadrupler comprising a second charging capacitor charged u...
- Patent number 8,717,699
- Issue date May 6, 2014
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Output capacitor current as feedback to control a hysteretic voltag...
- Patent number 8,358,114
- Issue date Jan 22, 2013
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Self-heating integrated circuit
- Patent number 8,358,145
- Issue date Jan 22, 2013
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G11 - INFORMATION STORAGE
Information Patent Grant
Soft start sequencer for starting multiple voltage regulators
- Patent number 8,145,934
- Issue date Mar 27, 2012
- Western Digital Technologies, Inc.
- Timothy A. Ferris
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
DATA STORAGE DEVICE CONCURRENTLY CONTROLLING AND SENSING A SECONDAR...
- Publication number 20170092310
- Publication date Mar 30, 2017
- WESTERN DIGITAL TECHNOLOGIES, INC.
- TIMOTHY A. FERRIS
- G11 - INFORMATION STORAGE
Information Patent Application
POWER FAILURE MANAGEMENT IN DISK DRIVES
- Publication number 20150310886
- Publication date Oct 29, 2015
- WESTERN DIGITAL TECHNOLOGIES, INC.
- TIMOTHY A. FERRIS
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE CHARGING CAPACITOR USING MOTOR SUPPLY VOLTAGE DURING POW...
- Publication number 20130148240
- Publication date Jun 13, 2013
- WESTERN DIGITAL TECHNOLOGIES, INC.
- TIMOTHY A. FERRIS
- G11 - INFORMATION STORAGE

Timothy A. Ferris

Person

Patents Grantslast 30 patents

Data storage device detecting spindle motor position at increased r...

Data storage device regulating BEMF power voltage during power failure

Data storage device employing predictive oversampling for servo con...

Current balancing circuit for multiple supply voltage systems

Data storage device employing smart braking to unload multiple voic...

Shock sensor resonance detection for notch filter tuning

Analog-to-digital conversion circuitry with real-time adjusted gain...

Data storage device measuring resonant frequency of a shock sensor...

Data storage device measuring resonant frequency of a shock sensor...

Power control module for data storage device

Data storage device concurrently controlling and sensing a secondar...

Data storage device compensating for fabrication tolerances when me...

Power failure management in disk drives

Self-heating integrated circuit

Disk drive charging capacitor using motor supply voltage during pow...

Data storage device detecting fly height instability of head during...

Detecting startup fault of SDRAM voltage regulator

Power architecture for low power modes in storage devices

Disk drive employing digital accumulators to limit velocity and/or...

Data storage device compensating for repeatable disturbance when co...

Disk drive implementing hysteresis for primary shock detector based...

Disk drive adjusting fly height based on air density measured from...

Data storage device comprising dual mode independent/parallel volta...

Data storage device reducing spindle motor voltage boost during pow...

Data storage device adjusting range of microactuator digital-to-ana...

Data storage device employing cascaded voltage regulators during po...

Voltage quadrupler comprising a second charging capacitor charged u...

Output capacitor current as feedback to control a hysteretic voltag...

Self-heating integrated circuit

Soft start sequencer for starting multiple voltage regulators

Patents Applicationslast 30 patents

DATA STORAGE DEVICE CONCURRENTLY CONTROLLING AND SENSING A SECONDAR...

POWER FAILURE MANAGEMENT IN DISK DRIVES

DISK DRIVE CHARGING CAPACITOR USING MOTOR SUPPLY VOLTAGE DURING POW...