Feedback control mechanism for active damping of slider air...

Details Feedback control mechanism for active damping of slider air... Feedback control mechanism for active damping of slider air...

2007-03-20

2007-03-20

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077030

Reexamination Certificate

active

11289105

ABSTRACT:
In a feedback control mechanism for active damping of slider air bearing vibrations in a hard disk drive slider, a filter is used to filter a velocity signal from a slider to acquire a vibration signal. A phase-shifter, electrically coupled with the filter, shifts the phase of the vibration signal. An amplifier, electrically coupled with the phase-shifter, adjusts the amplitude of the phase-shifted vibration signal to achieve an amplitude adjusted vibration signal. An electrical coupler couples the amplitude adjusted vibration signal to the slider for actively damping air bearing vibrations in the slider.

REFERENCES:
patent: 4853810 (1989-08-01), Pohl et al.
patent: 6005736 (1999-12-01), Schreck
patent: 6359746 (2002-03-01), Kakekado et al.
patent: 6577466 (2003-06-01), Meyer et al.
patent: 6674590 (2004-01-01), Ottesen et al.
patent: 6700724 (2004-03-01), Riddering et al.
patent: 6757120 (2004-06-01), Minoshima et al.
patent: 7012777 (2006-03-01), Hirano et al.
patent: 2002/0097517 (2002-07-01), Bonin et al.
patent: 2003/0043497 (2003-03-01), Riddering et al.
patent: 2003/0112547 (2003-06-01), Koso et al.
patent: 2003/0169526 (2003-09-01), Minoshima et al.
patent: 61113117 (1986-05-01), None
patent: 9097483 (1997-04-01), None
“Discharge Mechanism for Electrostatic Fly Control” IEEE Transactions on Magnetics, vol. 40 No. 4 Jul. 2004.
“Electrostatically Loaded Slider Bearing” IBM TDB, Dec. 1969 p. 959.

Affiliated with

Also associated with

Rating

Feedback control mechanism for active damping of slider air... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Feedback control mechanism for active damping of slider air..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feedback control mechanism for active damping of slider air... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3722307