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Jaesoo Byoun
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Irvine, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Data storage device with closed loop extended park mode during spin...
Patent number
11,978,482
Issue date
May 7, 2024
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Grant
Optimize power, RTV, and coupled PES during seek operations
Patent number
11,948,603
Issue date
Apr 2, 2024
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device with smart ISOFET threshold voltage automatic t...
Patent number
11,862,202
Issue date
Jan 2, 2024
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device having dual actuators and method for data egres...
Patent number
11,837,264
Issue date
Dec 5, 2023
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Grant
Dual spindle motors and dual spindle motor control for data storage
Patent number
11,823,710
Issue date
Nov 21, 2023
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device having dual actuators and method for emergency...
Patent number
11,763,844
Issue date
Sep 19, 2023
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Grant
VCM PWM to linear mode transition offset optimization to improve PES
Patent number
11,763,843
Issue date
Sep 19, 2023
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device with soft on-disk activation of fine actuators
Patent number
11,749,303
Issue date
Sep 5, 2023
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device independently driving outer and inner fine actu...
Patent number
11,482,246
Issue date
Oct 25, 2022
Western Digital Technologies, Inc.
Yanning Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device using windowed delta-sigma analog-to-digital co...
Patent number
11,373,678
Issue date
Jun 28, 2022
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device with spread spectrum spindle motor control
Patent number
11,081,988
Issue date
Aug 3, 2021
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device capable of overriding a servo command to avoid...
Patent number
10,714,133
Issue date
Jul 14, 2020
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device transmitting delta servo control value over ser...
Patent number
10,504,553
Issue date
Dec 10, 2019
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
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
Data storage device adjusting spindle motor current based on contin...
Patent number
10,176,840
Issue date
Jan 8, 2019
Western Digital Technologies, Inc.
Brian A. Johnson
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device using programmable deglitch window to detect sa...
Patent number
10,109,308
Issue date
Oct 23, 2018
Western Digital Technologies, Inc.
Brian A. Johnson
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
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 adaptively estimating spindle motor current
Patent number
9,666,224
Issue date
May 30, 2017
Jaesoo Byoun
G11 - INFORMATION STORAGE
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
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
Data storage device comprising spindle motor current sensing with s...
Patent number
9,245,577
Issue date
Jan 26, 2016
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
OPTIMIZE POWER, RTV, AND COUPLED PES DURING SEEK OPERATIONS
Publication number
20240096370
Publication date
Mar 21, 2024
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Application
DUAL SPINDLE MOTORS AND DUAL SPINDLE MOTOR CONTROL FOR DATA STORAGE
Publication number
20240062785
Publication date
Feb 22, 2024
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Application
VCM PWM TO LINEAR MODE TRANSITION OFFSET OPTIMIZATION TO IMPROVE PES
Publication number
20230386512
Publication date
Nov 30, 2023
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE HAVING DUAL ACTUATORS AND METHOD FOR EMERGENCY...
Publication number
20230386513
Publication date
Nov 30, 2023
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE WITH SMART ISOFET THRESHOLD VOLTAGE AUTOMATIC T...
Publication number
20230360680
Publication date
Nov 9, 2023
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE HAVING DUAL ACTUATORS AND METHOD FOR DATA EGRES...
Publication number
20230326484
Publication date
Oct 12, 2023
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE HAVING DUAL ACTUATORS AND METHOD FOR EMERGENCY...
Publication number
20230326485
Publication date
Oct 12, 2023
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Application
DUAL SPINDLE MOTORS AND DUAL SPINDLE MOTOR CONTROL FOR DATA STORAGE
Publication number
20230267960
Publication date
Aug 24, 2023
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE WITH CLOSED LOOP EXTENDED PARK MODE DURING SPIN...
Publication number
20230230616
Publication date
Jul 20, 2023
Western Digital Technologies, Inc.
Brian Johnson
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE WITH SOFT ON-DISK ACTIVATION OF FINE ACTUATORS
Publication number
20230186947
Publication date
Jun 15, 2023
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE INDEPENDENTLY DRIVING OUTER AND INNER FINE ACTU...
Publication number
20220262396
Publication date
Aug 18, 2022
Western Digital Technologies, Inc.
YANNING LIU
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE USING WINDOWED DELTA-SIGMA ANALOG-TO-DIGITAL CO...
Publication number
20220084548
Publication date
Mar 17, 2022
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE WITH SPREAD SPECTRUM SPINDLE MOTOR CONTROL
Publication number
20210265930
Publication date
Aug 26, 2021
Western Digital Technologies, Inc.
Jaesoo Byoun
G11 - INFORMATION STORAGE
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