Rotary magnetic head device having plural magnetic heads which a

Details Rotary magnetic head device having plural magnetic heads which a Rotary magnetic head device having plural magnetic heads which a

1993-07-16

1996-03-26

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 7716, 360 84, 360109, G11B 5588

Patent

active

055026060

ABSTRACT:
A rotary magnetic head device has a plurality of bobbins to which coils are respectively fixedly attached, and a plate spring fixedly attached to the bobbins. The plate spring has a plurality of front ends to which magnetic heads are respectively fixed. The magnetic heads are held in such a manner that, when a current is selectively supplied to one or more of the coils, the respective one or more of the magnetic heads independently move in the axial direction. A rotary magnetic head device has a head supporting base plate, and a head supporting table which is tilted by an angle with respect to the head supporting base plate. The tilt angle is adjusted by moving the head supporting table. In a rotary magnetic lead device, the position in the axial direction of a magnetic head is detected, and the level of a current to be supplied to a coil is adjusted on the basis of the detection result.

REFERENCES:
patent: 4882635 (1989-11-01), Sanai
patent: 4930030 (1990-05-01), Yabu et al.
patent: 4985794 (1991-01-01), Kato et al.
patent: 5157563 (1992-10-01), Nagasawa et al.
patent: 5182683 (1993-01-01), Mitsuhashi
patent: 5227937 (1993-07-01), Magnusson et al.
patent: 5247404 (1993-09-01), Takeda
patent: 5343342 (1994-08-01), Kanagawa et al.

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