Hard disk drive vibration cancellation using adaptive filter

Details Hard disk drive vibration cancellation using adaptive filter Hard disk drive vibration cancellation using adaptive filter

2007-10-31

2009-02-03

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07486470

ABSTRACT:
A method of reducing the effect of vibrations associated with seek operations is disclosed. A feedforward filter is adjusted. A cancellation signal is then generated utilizing an adjusted feedforward filter, wherein the cancellation signal models a resonance of a vibration mode. The cancellation signal is provided at an actuator control signal, thereby inducing a force applied to an actuator such that the force holds the actuator at a track center position while vibrations occur during hard disk drive operations.

REFERENCES:
patent: 5673044 (1997-09-01), Pellon
patent: 5914829 (1999-06-01), Kadlec et al.
patent: 5920441 (1999-07-01), Cunningham et al.
patent: 6005742 (1999-12-01), Cunningham et al.
patent: 6137187 (2000-10-01), Mikhail et al.
patent: 6347018 (2002-02-01), Kadlec et al.
patent: 6470225 (2002-10-01), Yutkowitz
patent: 6538839 (2003-03-01), Ryan
patent: 6560059 (2003-05-01), Hsin et al.
patent: 6563666 (2003-05-01), LaPanse
patent: 6580579 (2003-06-01), Hsin et al.
patent: 6710966 (2004-03-01), Codilian et al.
patent: 6831809 (2004-12-01), Kagami et al.
patent: 6961628 (2005-11-01), Yutkowitz
patent: 7206162 (2007-04-01), Semba et al.
patent: 7345841 (2008-03-01), Baugh et al.
patent: 2003/0058571 (2003-03-01), Kisaka
patent: 2004/0213100 (2004-10-01), Iwashiro

Affiliated with

Also associated with

Rating

Hard disk drive vibration cancellation using adaptive filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hard disk drive vibration cancellation using adaptive filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hard disk drive vibration cancellation using adaptive filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4072170