Title:
磁気ディスク装置およびその制御方法
Document Type and Number:
Japanese Patent JP5039943
Kind Code:
B2
Abstract:
Embodiments of the present invention provide a magnetic disk drive, in which a disturbance component contained in an output signal from a rotational vibration detector, can be appropriately suppressed irrespective of frequency of the component, and a method of controlling the drive. According to one embodiment, in a magnetic disk drive having a rotational vibration detector for detecting rotational vibration of a drive housing, a main control circuit performs a head moving step of driving a voice coil motor to move a magnetic head on a magnetic disk, a frequency estimation step of estimating a frequency of each disturbance component contained in an output signal from the rotational vibration detector after moving the magnetic head, and a suppressor setting step of setting a notch filter for suppressing the disturbance component based on the estimated frequency.
Inventors:
Hiroyuki Uchida
Iketo Manabu
Iketo Manabu
Application Number:
JP2007132834A
Publication Date:
October 03, 2012
Filing Date:
May 18, 2007
Export Citation:
Assignee:
H.G. Esteneetherland Bee Buoy
International Classes:
G11B21/10
Domestic Patent References:
| JP2007095119A | ||||
| JP2002287827A |
Attorney, Agent or Firm:
Haruka International Patent Office