Inventor
CHEN YANGQUAN
SG14 patents
⚠️ This page may combine multiple inventors who share the name “CHEN YANGQUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEAGATE TECHNOLOGY LLC
12 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
US6690534B2Feb 10, 2004
Method and apparatus for handling multiple resonance frequencies in disc drives using active damping
SEAGATE TECHNOLOGY LLC38 citations91
US6704159B2Mar 9, 2004
Automatic acoustic management system for a disc drive
SEAGATE TECHNOLOGY LLC18 citations83
US6674589B2Jan 6, 2004
Method for harmonic frequency identification in a disc drive
SEAGATE TECHNOLOGY LLC13 citations83
US6574067B2Jun 3, 2003
Optimally designed parsimonious repetitive learning compensator for hard disc drives having high track density
SEAGATE TECHNOLOGY LLC18 citations83
US6661599B1Dec 9, 2003
Enhanced adaptive feedforward control to cancel once-per-revolution disturbance by shaping the internal mode
SEAGATE TECHNOLOGY LLC14 citations82
US6636375B1Oct 21, 2003
Seek in a disc drive with nonlinear pivot friction
SEAGATE TECHNOLOGY LLC11 citations72
US6324890B1Dec 4, 2001
Method of characterizing and screening voice coil motor pivot friction in a low velocity region
SEAGATE TECHNOLOGY LLC6 citations62
US6785073B2Aug 31, 2004
Identification and cancellation of cage frequency in a hard disc drive
SEAGATE TECHNOLOGY LLC5 citations61
US6674607B2Jan 6, 2004
Method and apparatus for determining high order polynomials for linearization of position signals
SEAGATE TECHNOLOGY LLC1 citations47