Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
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.
Imakoshi Shigeyoshi
Katakura Toru
Nakayama Masayuki
Sekiya Tetsuo
Suyama Hideo
Cardillo Raymond F.
Garland Steven R.
Sony Corporation
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