Method of positionally controlling a recording/reproducing head

Details Method of positionally controlling a recording/reproducing head Method of positionally controlling a recording/reproducing head

1998-04-27

2000-12-26

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7814, G11B 5596

Patent

active

061668753

ABSTRACT:
A disk device includes a magnetic disk carrying servo information and rotatable about a rotational axis, a magnetic head for reading information from the magnetic disk, a positioning unit for positioning the magnetic head radially over the magnetic disk, and a control unit for controlling the positioning unit according to the servo information. The control unit separately measures a rotational frequency component of the magnetic disk and a high-order frequency component which has frequencies higher than the rotational frequency component, and thereafter controls the positioning unit so as to follow the rotational frequency component while eliminating the high-order frequency component. When the magnetic head is positioned along a circular pattern about the rotational axis of the magnetic disk, the magnetic head is prevented from vibrating while compensating for an eccentricity of the magnetic disk.

REFERENCES:
patent: 4764860 (1988-08-01), Takao
patent: 4954905 (1990-09-01), Wakabashi et al.
patent: 5305159 (1994-04-01), Sakai et al.
patent: 5402400 (1995-03-01), Hamada et al.
patent: 5550685 (1996-08-01), Drouin

Affiliated with

Also associated with

Rating

Method of positionally controlling a recording/reproducing head 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 of positionally controlling a recording/reproducing head , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of positionally controlling a recording/reproducing head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1001664