Adaptive velocity profile for disk actuator control

Details Adaptive velocity profile for disk actuator control Adaptive velocity profile for disk actuator control

1988-04-04

1990-02-06

Faber, Alan

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7807, 360 7812, 318561, G11B 555, G11B 2108

Patent

active

048992348

ABSTRACT:
A microprocessor is used to measure the performance of a disk drive during each seek operation. By measuring track crossings per unit time of acceleration the deceleration of the servo arm can be delayed as long as possible to minimize unproductive access time. A performance ratio is calculated for each seek and the look-up table values of worst case performance are modified to fit measured actual performance values.

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patent: 4638230 (1987-01-01), Lee
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