Apparatus for controlling seek strategy of read/write head in a

Details Apparatus for controlling seek strategy of read/write head in a Apparatus for controlling seek strategy of read/write head in a

1988-11-28

1990-06-26

Faber, Alan

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7806, G11B 555

Patent

active

049376896

ABSTRACT:
In a hard disk drive memory, a device for controlling a seek operation in which the head is gradually accelerated, then gradually decelerated to move the head quickly from one track to another. The head detects the current track position and triggers a "seek profile" based on the distance of the destination track whereby the device determines the ideal acceleration curve for the seek to be performed. From this, the head begins the seek over a series of consecutive time segments, monitoring its position and determining nominal position at the end of the next successive time segment. In this way the seek profile is updated at each small time segment. Thus, the final head placement is more accurate than in conventional art, in which only an initial distance estimate is used to guide the placement of head. The gradual acceleration/deceleration of the head reduces noise and system wear compared with the full-power acceleration/deceleration utilized in the prior art.

REFERENCES:
patent: 3699555 (1972-10-01), Du Vall
patent: 3798427 (1974-03-01), Connors
patent: 4103314 (1978-07-01), Case
patent: 4488179 (1984-12-01), Axmear et al.
patent: 4494159 (1985-01-01), Takayama et al.

Affiliated with

Also associated with

Rating

Apparatus for controlling seek strategy of read/write head in a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for controlling seek strategy of read/write head in a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling seek strategy of read/write head in a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1129423