Duc T. Phan

Person

Santa Clara County, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Disk drive measuring stroke difference between heads by detecting a...
- Patent number 9,355,666
- Issue date May 31, 2016
- Western Digital Technologies, Inc.
- Yanan Huang
- G11 - INFORMATION STORAGE
Information Patent Grant
Electronic system with media scan mechanism and method of operation...
- Patent number 9,349,401
- Issue date May 24, 2016
- Western Digital Technologies, Inc.
- Alexander Babinski
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device demodulating servo burst by computing slope of...
- Patent number 9,286,927
- Issue date Mar 15, 2016
- Western Digital Technologies, Inc.
- Shan Tang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive characterizing microactuator by injecting sinusoidal dis...
- Patent number 9,142,235
- Issue date Sep 22, 2015
- Western Digital Technologies, Inc.
- Alexander Babinski
- G11 - INFORMATION STORAGE
Information Patent Grant
Electronic system with actuator control mechanism and method of ope...
- Patent number 9,142,225
- Issue date Sep 22, 2015
- Western Digital Technologies, Inc.
- Min Chen
- 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
Disk drive toggling VCM inductor compensation to reduce acoustic noise
- Patent number 8,988,811
- Issue date Mar 24, 2015
- Western Digital Technologies, Inc.
- Jianghong Ding
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive detecting microactuator degradation by evaluating freque...
- Patent number 8,929,022
- Issue date Jan 6, 2015
- Western Digital Technologies, Inc.
- Yanan Huang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive releasing variable amount of buffered write data based o...
- Patent number 8,922,931
- Issue date Dec 30, 2014
- Western Digital Technologies, Inc.
- Chuanwen Ji
- G11 - INFORMATION STORAGE
Information Patent Grant
Adaptive track follow control
- Patent number 8,896,955
- Issue date Nov 25, 2014
- Western Digital Technologies, Inc.
- Min Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive predicting spindle motor failure by evaluating current d...
- Patent number 8,804,267
- Issue date Aug 12, 2014
- Western Digital Technologies, Inc.
- Yanan Huang
- G11 - INFORMATION STORAGE
Information Patent Grant
Polarity detection of piezoelectric actuator in disk drive
- Patent number 8,797,664
- Issue date Aug 5, 2014
- Western Digital Technologies, Inc.
- Hengchang Guo
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive increasing integrator output range to complete seek oper...
- Patent number 8,767,343
- Issue date Jul 1, 2014
- Western Digital Technologies, Inc.
- Daniel L. Helmick
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive detecting track squeeze when circular tracks are defined...
- Patent number 8,743,495
- Issue date Jun 3, 2014
- Western Digital Technologies, Inc.
- Min Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive adjusting noise spectrum to reduce resonance excitation...
- Patent number 8,717,696
- Issue date May 6, 2014
- Western Digital Technologies, Inc.
- Robert P. Ryan
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive performing lifetime logging of microactuator sensitivity
- Patent number 8,605,384
- Issue date Dec 10, 2013
- Western Digital Technologies, Inc.
- Yanning Liu
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive correcting track ID in response to an estimated radial l...
- Patent number 8,553,351
- Issue date Oct 8, 2013
- Western Digital Technologies, Inc.
- Aswartha Narayana
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive upsampling servo control signal
- Patent number 8,542,455
- Issue date Sep 24, 2013
- Western Digital Technologies, Inc.
- Yanan Huang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive employing system inversion for tuning seek to settle ser...
- Patent number 8,508,881
- Issue date Aug 13, 2013
- Western Digital Technologies, Inc.
- Alexander Babinski
- G11 - INFORMATION STORAGE
Information Patent Grant
Adaptive data writing mode based on drive environment
- Patent number 8,315,006
- Issue date Nov 20, 2012
- Western Digital Technologies, Inc.
- Alain Chahwan
- G11 - INFORMATION STORAGE
Information Patent Grant
Adaptive shock detection
- Patent number 8,179,626
- Issue date May 15, 2012
- Western Digital Technologies, Inc.
- Robert P. Ryan
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive computing data center off-track from repeatable runout o...
- Patent number 7,961,422
- Issue date Jun 14, 2011
- Western Digital Technologies, Inc.
- Min Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive calibrating VCM notch filter by increasing the width and...
- Patent number 7,864,482
- Issue date Jan 4, 2011
- Western Digital Technologies, Inc.
- Alexander Babinski
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive employing data-based basis function expansion for tuning...
- Patent number 7,839,600
- Issue date Nov 23, 2010
- Western Digital Technologies, Inc.
- Alexander Babinski
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive comprising a disk surface having track addresses of vary...
- Patent number 7,688,538
- Issue date Mar 30, 2010
- Western Digital Technologies, Inc.
- Min Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Head switch operation for a disk drive
- Patent number 7,679,854
- Issue date Mar 16, 2010
- Western Digital Technologies, Inc.
- Aswartha Narayana
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive initializing a coil temperature estimation algorithm usi...
- Patent number 7,660,067
- Issue date Feb 9, 2010
- Western Digital Technologies, Inc.
- Chuanwen Ji
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive servo control techniques to preserve PES continuity
- Patent number 7,616,399
- Issue date Nov 10, 2009
- Western Digital Technologies, Inc.
- Min Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive servo control techniques for predicting an off-track con...
- Patent number 7,558,016
- Issue date Jul 7, 2009
- Western Digital Technologies, Inc.
- Tien Quang Le
- G11 - INFORMATION STORAGE
Information Patent Grant
Extended position error signal linearization and normalization
- Patent number 6,188,539
- Issue date Feb 13, 2001
- Seagate Technology LLC
- Mark Lowell Elliot
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
DISK DRIVE PREDICTING SPINDLE MOTOR FAILURE BY EVALUATING CURRENT D...
- Publication number 20140126081
- Publication date May 8, 2014
- WESTERN DIGITAL TECHNOLOGIES, INC.
- YANAN HUANG
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE UPSAMPLING SERVO CONTROL SIGNAL
- Publication number 20130120873
- Publication date May 16, 2013
- WESTERN DIGITAL TECHNOLOGIES, INC.
- YANAN HUANG
- G11 - INFORMATION STORAGE

Duc T. Phan

Person

Patents Grantslast 30 patents

Disk drive measuring stroke difference between heads by detecting a...

Electronic system with media scan mechanism and method of operation...

Data storage device demodulating servo burst by computing slope of...

Disk drive characterizing microactuator by injecting sinusoidal dis...

Electronic system with actuator control mechanism and method of ope...

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

Disk drive toggling VCM inductor compensation to reduce acoustic noise

Disk drive detecting microactuator degradation by evaluating freque...

Disk drive releasing variable amount of buffered write data based o...

Adaptive track follow control

Disk drive predicting spindle motor failure by evaluating current d...

Polarity detection of piezoelectric actuator in disk drive

Disk drive increasing integrator output range to complete seek oper...

Disk drive detecting track squeeze when circular tracks are defined...

Disk drive adjusting noise spectrum to reduce resonance excitation...

Disk drive performing lifetime logging of microactuator sensitivity

Disk drive correcting track ID in response to an estimated radial l...

Disk drive upsampling servo control signal

Disk drive employing system inversion for tuning seek to settle ser...

Adaptive data writing mode based on drive environment

Adaptive shock detection

Disk drive computing data center off-track from repeatable runout o...

Disk drive calibrating VCM notch filter by increasing the width and...

Disk drive employing data-based basis function expansion for tuning...

Disk drive comprising a disk surface having track addresses of vary...

Head switch operation for a disk drive

Disk drive initializing a coil temperature estimation algorithm usi...

Disk drive servo control techniques to preserve PES continuity

Disk drive servo control techniques for predicting an off-track con...

Extended position error signal linearization and normalization

Patents Applicationslast 30 patents

DISK DRIVE PREDICTING SPINDLE MOTOR FAILURE BY EVALUATING CURRENT D...

DISK DRIVE UPSAMPLING SERVO CONTROL SIGNAL