Flexible disc device for media of different track densities

Details Flexible disc device for media of different track densities Flexible disc device for media of different track densities

1983-09-30

1986-11-11

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

360 78, 360118, G11B 509, G11B 5127, G11B 2108

Patent

active

046226010

ABSTRACT:
In a flexible disc device having a magnetic head for reading data written in a flexible disc medium or writing data to the medium, the magnetic head enables to change effective track width specified by core width of writing/reading head gap and erasing head gap at the writing state corresponding to the record density in the diameter direction of the disc medium, thereby compatibility is obtained between plural sorts of flexible disc media being different in the track density.

REFERENCES:
patent: 3155949 (1964-11-01), Tibbetts
patent: 4159493 (1979-06-01), Ohta et al.
patent: 4298897 (1981-11-01), Arter et al.
patent: 4371901 (1983-02-01), Shah
patent: 4405959 (1983-09-01), Chabrolle

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