Side-by-side read/write heads with rotary positioner

Details Side-by-side read/write heads with rotary positioner Side-by-side read/write heads with rotary positioner

1991-06-28

1993-07-20

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 7702, 369272, G11B 555, G11B 5596, G11B 529

Patent

active

052299015

ABSTRACT:
A disk drive (10) includes a head positioner (16) on which are mounted separate read and write heads (52 and 54) that are spaced apart in the direction radial of the disk axis. Headers (50) on a disk (12) in the disk drive (10) establish track pitches that vary with radial position in such a manner that the radial separation of the read and write heads (52, 54) is equal to an integral number of track spacings that is substantially independent of the positioner angle.

REFERENCES:
patent: 4414589 (1983-11-01), Oliver et al.
patent: 4499574 (1985-02-01), Braat
patent: 4620251 (1986-10-01), Gitzendanner
patent: 4945427 (1990-07-01), Cunningham
patent: 4953051 (1990-08-01), Wada et al.
patent: 5010430 (1991-04-01), Yamada et al.
Chang et al., IEEE Trans. on Magnetics, vol. MAG-23, No. 5, Sep. 1987, pp. 2934-2936.
Yamada et al., IEEE Trans. on Magnetics, vol. MAG-22, No. 5, Sep. 1986, pp. 698-700.
Chen et al., IEEE Trans. on Magnetics, vol. MAG-17, No. 6, Nov. 1981, pp. 2905-2907.

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