The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2007
Filed:
Nov. 29, 2005
Applicants:
Thomas R. Albrecht, San Jose, CA (US);
Peter M. Baumgart, San Jose, CA (US);
Bernhard E. Knigge, San Jose, CA (US);
Inventors:
Thomas R. Albrecht, San Jose, CA (US);
Peter M. Baumgart, San Jose, CA (US);
Bernhard E. Knigge, San Jose, CA (US);
Assignee:
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 21/02 (2006.01); G11B 5/596 (2006.01); G11B 5/55 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method of feedback control for active damping of slider air bearing vibrations in a hard disk drive slider, a slider is isolated from ground. A slider velocity signal is filtered to acquire a vibration signal. The vibration signal is adjusted in amplitude to achieve an amplitude adjusted vibration signal. The amplitude adjusted vibration signal is applied to the slider to actively dampen air bearing vibrations in the slider.