Magnetic transducer combination with formatting, data, and servo

Details Magnetic transducer combination with formatting, data, and servo Magnetic transducer combination with formatting, data, and servo

1986-03-10

1988-03-01

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 77, 360104, 360121, G11B 5596, G11B 5012

Patent

active

047290480

ABSTRACT:
A combination magnetic transducer head apparatus which can easily achieve initial formatting of data tracks of a rotating magnetic recording medium such as a hard disk without using a specific separate initial formatting system. The apparatus comprises a magnetic head for initial formatting, another magnetic head for servo control and a magnetic recording and playback head all mounted on a head slider. In the apparatus, at least one track is first recorded on a magnetic disk by the magnetic head for initial formatting and then another track is recorded by the magnetic recording and playback head while the first track is scanned by the magnetic head for servo control whereafter such a series of operations are repeated until completion of recording of all tracks required.

REFERENCES:
patent: 4068268 (1978-01-01), Idemoto et al.
patent: 4152736 (1979-05-01), Jansen et al.
patent: 4613915 (1986-09-01), Crouse et al.
IBM TDB, vol. 16, No. 6, Comstock et al., 11/73, pp. 1821-1823.
IBM TDB, vol. 15, No. 4, Zimmermann et al., 9/72, pp. 1320-1321.
IBM TDB, vol. 25, No. 2, Schwarz, 7/82, pp. 778-779.
IBM TDB, vol. 22, No. 8A, Brock et al., 1/80, pp. 3127-3130.

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