Piezoelectric driven mass storage

Details Piezoelectric driven mass storage Piezoelectric driven mass storage

1985-09-06

1987-01-13

Stellar, George G.

Dynamic magnetic information storage or retrieval

Head transport with record stationary during transducing

360 52, 360 63, 360 75, G11B 500

Patent

active

046368930

ABSTRACT:
A planar array of high track density magnetic heads is mounted on a piezoelectric structural member. The heads are in contact with an area of magnetic recording medium coated onto a stationary support member located adjacent the head array structure. A repetitive ramp voltage is applied to the piezoelectric member causing repetitive linear extension of the member with resultant relative motion between the head array and the medium. A position transducer provides a feedback signal which monitors the position of the head array in relation to the magnetic medium, and this feedback signal is used to servo control the motion of the head array. Recording and playback of the stored information occurs coincidentally with the movement of the head array relative to the medium.

REFERENCES:
patent: 3372242 (1968-03-01), Garrett
patent: 3460120 (1969-08-01), Lichowsky
patent: 4099211 (1978-07-01), Hathaway
patent: 4106065 (1978-08-01), Ravizza
patent: 4151569 (1979-04-01), Hathaway
patent: 4165523 (1979-08-01), Hathaway
patent: 4188645 (1980-02-01), Ragle et al.
patent: 4203140 (1980-05-01), Watanabe
patent: 4374402 (1983-02-01), Blessom et al.

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