Magnetic recording/reproduction apparatus

Details Magnetic recording/reproduction apparatus Magnetic recording/reproduction apparatus

1989-11-09

1990-08-14

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 351, 360118, 358906, G11B 503

Patent

active

049491997

ABSTRACT:
Disclosed is a magnetic recording/reproduction apparatus wherein a pulse corresponding to rotation of a magnetic disk is obtained by detecting a PG yoke signal as a rotational position detection index in the disk by a PG coil as a pulse detection means, recording/reproduction control is performed by a control circuit or the like as erase recording/reproduction control means operated in accordance with the pulse, erase and recording/reproduction operations of data are performed with respect to the disk by a composite magnetic head controlled by the erase recording/reproduction control means, i.e., the composite magnetic head in which an erase gap and a read/write gap are internally provided so as to be separated from each other in the longitudinal direction of a recording track.

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patent: 4675758 (1987-01-01), Tanaka
patent: 4685007 (1987-08-01), Nazarian et al.

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