Inventor
BI QIANG
SG33 patents
⚠️ This page may combine multiple inventors who share the name “BI QIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEAGATE TECHNOLOGY LLC
30 patentsUS6563663B1May 13, 2003
Repeatable runout compensation using iterative learning control in a disc storage system
SEAGATE TECHNOLOGY LLC68 citations96
US6654198B2Nov 25, 2003
Repeatable run-out error compensation method for a disc drive
SEAGATE TECHNOLOGY LLC60 citations95
US6437936B1Aug 20, 2002
Repeatable runout compensation using a learning algorithm with scheduled parameters
SEAGATE TECHNOLOGY LLC80 citations95
US7457075B2Nov 25, 2008
System and method for reducing ZAP time and track squeeze in a data storage device
SEAGATE TECHNOLOGY LLC41 citations91
US7054094B2May 30, 2006
Real-time automatic loop-shaping for a disc drive servo control system
SEAGATE TECHNOLOGY LLC25 citations91
US6751042B2Jun 15, 2004
Track pitch correction method and apparatus
SEAGATE TECHNOLOGY LLC44 citations91
US7405893B2Jul 29, 2008
Data storage medium with optimized servo format
SEAGATE TECHNOLOGY LLC35 citations90
US6862155B2Mar 1, 2005
Squeeze evaluations that account for low frequency components, in a controller usable in a data handling system
SEAGATE TECHNOLOGY LLC27 citations89
US6317285B1Nov 13, 2001
Method for calibrating MR head geometry in selfservo writing disc drives
SEAGATE TECHNOLOGY LLC38 citations86
US9495988B1Nov 15, 2016
Dependent write fault threshold
SEAGATE TECHNOLOGY LLC17 citations84
US9236073B1Jan 12, 2016
Write fault threshold for a set of tracks
SEAGATE TECHNOLOGY LLC8 citations84
US10318173B2Jun 11, 2019
Multi-speed data storage device with media cache for high speed writes
SEAGATE TECHNOLOGY LLC7 citations81
US6465981B2Oct 15, 2002
Adaptive anti-windup method and apparatus for disc drive servo control
SEAGATE TECHNOLOGY LLC8 citations74
US11264056B1Mar 1, 2022
System and method for write-retry management
SEAGATE TECHNOLOGY LLC3 citations73
US9520149B1Dec 13, 2016
Direct current magnetoresistive jog offset compensation
SEAGATE TECHNOLOGY LLC4 citations73
US9858955B1Jan 2, 2018
Disturbance compensation for dual-stage servo system using vibration sensor
SEAGATE TECHNOLOGY LLC6 citations72
US9805749B1Oct 31, 2017
Heat-assisted magnetic recording drive enclosure with arcuate channel for accommodating laser diode unit
SEAGATE TECHNOLOGY LLC6 citations72
US9304930B2Apr 5, 2016
HDD write buffer zone for vibration condition
SEAGATE TECHNOLOGY LLC6 citations72
US6693763B2Feb 17, 2004
Method for linearizing microactuator hysteresis for a disc drive
SEAGATE TECHNOLOGY LLC12 citations72
US10839842B1Nov 17, 2020
Attenuation of vibration-induced disturbances in a data storage device
SEAGATE TECHNOLOGY LLC2 citations71
US7349174B2Mar 25, 2008
Soft sensor for operating shock in a disc drive
SEAGATE TECHNOLOGY LLC7 citations70
US9621988B2Apr 11, 2017
Disc drive speaker vibration mitigation
SEAGATE TECHNOLOGY LLC2 citations67
US10997996B1May 4, 2021
Flexible on-cylinder limit for drive performance management
SEAGATE TECHNOLOGY LLC2 citations64
US10068600B2Sep 4, 2018
Direct current magnetoresistive jog offset compensation
SEAGATE TECHNOLOGY LLC1 citations63
US11783856B2Oct 10, 2023
Adaptable servo controllers
SEAGATE TECHNOLOGY LLC0 citations62
US11682429B2Jun 20, 2023
System and method for write-retry management
SEAGATE TECHNOLOGY LLC0 citations62
US11380356B2Jul 5, 2022
Flexible on-cylinder limit for drive performance management
SEAGATE TECHNOLOGY LLC0 citations54
US9837111B1Dec 5, 2017
Direct current magnetoresistive jog offset compensation
SEAGATE TECHNOLOGY LLC0 citations52
US10090009B2Oct 2, 2018
Vibration compensation using disk locked clock error
SEAGATE TECHNOLOGY LLC0 citations51
US10593362B2Mar 17, 2020
Interlaced magnetic recording storage system
SEAGATE TECHNOLOGY LLC0 citations46