Patents Assigned to Hitachi Global Storage Technologies Nethelands, B.V.
  • Method of feedback control for active damping of slider air bearing vibrations in a hard disk drive slider
    Patent number: 7359138
    Abstract: In 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 velocity signal is acquired from the slider. The 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 vibrations in the slider.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: April 15, 2008
    Assignee: Hitachi Global Storage Technologies Nethelands, B.V.
    Inventors: Thomas R. Albrecht, Peter M. Baumgart, Bernhard E. Knigge