Apparatus for writing signal density information on a magnetic m

Details Apparatus for writing signal density information on a magnetic m Apparatus for writing signal density information on a magnetic m

1987-05-08

1989-04-04

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Recording or reproducing an information signal and a control...

360 66, G11B 502, G11B 503

Patent

active

048190926

ABSTRACT:
Apparatus is disclosed for using a head having narrow write gap to write tracks of information on a tape for subsequent reading by other apparatus including apparatus having heads with a wide read gap. An inter track erase operation is performed prior to the writing operation. Density information is written on a plurality of tracks to indicate the flux reversal signal density used for the writing of user data elsewhere on the tape.

REFERENCES:
patent: 3769469 (1973-10-01), Garnier et al.
patent: 3932894 (1976-01-01), Arter et al.
patent: 4054947 (1977-10-01), Shanks et al.
patent: 4298897 (1981-11-01), Arter et al.
patent: 4644421 (1987-02-01), Miwa et al.

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