Head positioning apparatus for disc unit

Details Head positioning apparatus for disc unit Head positioning apparatus for disc unit

1991-02-26

1992-07-14

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 7804, G11B 555, G11B 5596

Patent

active

051308738

ABSTRACT:
A head positioning apparatus for a disc unit which moves a carriage having a movable portion by driving motors constituted by coils and magnets, wherein driving power distribution of the driving motors is variable, so that the acting points of the driving forces of the driving motors can be variably set at any position to position the acting points of driving forces of the driving motors on a centroidal axis of the movable portion.

REFERENCES:
patent: 4743987 (1988-05-01), Farmer et al.
patent: 4823336 (1989-04-01), Inada et al.
patent: 4864447 (1989-09-01), Takekado et al.

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