Rotary magnetic head device using plural magnets and coils to po

Details Rotary magnetic head device using plural magnets and coils to po Rotary magnetic head device using plural magnets and coils to po

1995-06-05

1997-11-04

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360107, G11B 5592

Patent

active

056846525

ABSTRACT:
A rotary magnetic head device has a plurality of bobbins to which coils are respectively fixedly attached, and a place 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 moves 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 head 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), Magnussan et al.
patent: 5247404 (1993-09-01), Takeda
patent: 5343342 (1994-08-01), Kanagawa et al.

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