Actuator for memory storage device

Details Actuator for memory storage device Actuator for memory storage device

1987-06-18

1989-03-14

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360104, 310 13, 310 38, G11B 555, G11B 2108

Patent

active

048129348

ABSTRACT:
In a magnetic disc device, it is necessary that a magnetic head be positioned above an object data track at a high speed and with a high accuracy. This positioning operation is carried out by an actuator. In order to carry out a magnetic head-positioning operation at a high speed and with a high accuracy, it is necessary that a driving force generated by a magnetic circuit be applied to the center of gravity of the actuator. The techniques according to the present invention are characerized in that the center of gravity of the actuator and the position to which the driving force is applied are aligned with each other by regulating the distribution or position of the magnetic flux in the magnetic circuit.

REFERENCES:
patent: 4322762 (1982-03-01), Manzke et al.
patent: 4427905 (1984-01-01), Sutton
patent: 4490635 (1984-12-01), Harrison et al.

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