Tracking control device for magnetic recording/reproducing appar

Details Tracking control device for magnetic recording/reproducing appar Tracking control device for magnetic recording/reproducing appar

1991-02-14

1993-11-16

Heyman, John S.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7706, 360 7802, G11B 5584, G11B 2110

Patent

active

052629082

ABSTRACT:
A tracking control device for a magnetic recording/reproducing apparatus arranged in such a manner that a head unit having a plurality of magnetic heads is successively moved in the widthwise direction of a magnetic tape for switching tracking positions so that data recording/reproducing is, by each of the plurality of magnetic heads, performed along a plurality of data tracks formed on the magnetic tape in parallel to a direction in which the magnetic tape moves. The tracking control device has at least two servo signal reproducing heads provided integrally with the head unit and provided for the purpose of reproducing servo signals for tracking use from a plurality of servo tracks formed in parallel to the data tracks on the magnetic tape, and movement control unit for controlling, at each of the tracking positions, movement of the head unit in the widthwise direction in accordance with the difference in two servo signals reproduced by adjacent two of the servo signal reproducing heads corresponded to each of the tracking positions.

REFERENCES:
patent: 3576553 (1971-04-01), Hertrich
patent: 4176381 (1979-11-01), de Niet
patent: 4347534 (1982-08-01), Kimura
patent: 4392163 (1983-07-01), Rijckaert et al.
patent: 4472750 (1984-09-01), Klumpp et al.
patent: 4476503 (1984-10-01), Solhjell
patent: 4639796 (1987-01-01), Solhjell
patent: 4677505 (1987-06-01), Nukada et al.
patent: 4975791 (1990-12-01), Eggebeen
patent: 5008765 (1991-04-01), Youngquist

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