Data erasing device erasing designated data

Details Data erasing device erasing designated data Data erasing device erasing designated data

1995-06-06

1996-10-29

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

G11B 2115

Patent

active

055702457

ABSTRACT:
A data erasing device erasing designated data includes designating circuitry for designating one of two groups in a storage medium. The two groups comprise a first group including an upper block preceding a designated block, and a second group including a lower block following the designated block. Erasing circuitry is provided for erasing data recorded in blocks which are included in the designated group. Preferably, a designated block is one track in a recording disk, and the tracks above and/or below the designated track are erased.

REFERENCES:
patent: 4725902 (1988-02-01), Oda et al.
Mastering DOS by Judd Robbins .COPYRGT., published by Sybex, pp. 95-102.

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