Method of efficiently erasing data in accordance with type of ma

Details Method of efficiently erasing data in accordance with type of ma Method of efficiently erasing data in accordance with type of ma

1988-06-30

1990-04-03

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 31, 360 67, G11B 5024, G11B 2736

Patent

active

049145320

ABSTRACT:
A magnetic recording apparatus capable of efficiently erasing data in accordance with a type of magnetic recording medium, comprises a current source, an erase head for erasing data recorded on a recording medium using a supplied erase current, and a current supplying section for supplying an erase current from the current source to the erase head in accordance with input erase current control data. The current supplying section comprises a selecting section for selecting a combination of a plurality of control elements in accordance with the input erase current control data, and a supplying section for supplying an erase current determined in accordance with the selected combination from the current source to the erase head.

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patent: 4799115 (1989-01-01), Rogers et al.
patent: 4813011 (1989-03-01), Kulakowski et al.
Toshiba Review No. 154 Winter 1985, Barium Ferrite Perpendicular Recording Floppy Disk.
IEEE Transactions on Magnetics, vol. Mag-22, No. 5, Sep. 1986, High Density Recording Characteristics for Ba-Ferrite Flexible Disks.

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