Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2008-09-18
2010-02-09
Wong, K. (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C360S234400
Reexamination Certificate
active
07660068
ABSTRACT:
In a method of pre-contact detection and active damping of air bearing vibrations in a hard disk drive, a slider is isolated from ground. The slider is then capacitively coupled with a hard disk of the hard disk drive via a thermal fly-height control (TFC) heating element. An alternating current (AC) signal is applied to the slider via the TFC heating element to control the amplitude of the slider.
REFERENCES:
patent: 3614579 (1971-10-01), Fulton
patent: 4814907 (1989-03-01), Goor
patent: 5991113 (1999-11-01), Meyer et al.
patent: 6331919 (2001-12-01), Klaassen et al.
patent: 7016139 (2006-03-01), Baumgart et al.
patent: 7193806 (2007-03-01), Albrecht et al.
patent: 7199960 (2007-04-01), Schreck et al.
patent: 7215495 (2007-05-01), Che et al.
patent: 7215500 (2007-05-01), Albrecht et al.
patent: 7233451 (2007-06-01), Baumgart et al.
patent: 7277252 (2007-10-01), Albrecht et al.
patent: 7330336 (2008-02-01), Luo et al.
patent: 2004/0165305 (2004-08-01), Nishiyama
patent: 2007/0253090 (2007-11-01), Hirano et al.
patent: 2008/0043355 (2008-02-01), Ota
patent: 2003308670 (2003-10-01), None
Gunn, J. B., “Magnetic Recording Head with Squeeze Bearing”,Delphion—IBM Technical Disclosure Bulletin, (Jan. 1989),1 page.
Baumgart Peter M.
Contreras John T.
Franca-Neto Luiz
Knigge Bernhard E.
Kroeker Richard
Hitachi Global Storage Technologies - Netherlands B.V.
Wong K.
LandOfFree
Method and system for pre-contact detection and active... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for pre-contact detection and active..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for pre-contact detection and active... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4166768