Slider assembly with dynamically positionable transducer

Details Slider assembly with dynamically positionable transducer Slider assembly with dynamically positionable transducer

1985-05-03

1987-05-26

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 75, G11B 2120, G11B 560

Patent

active

046690115

ABSTRACT:
A flying head slider is flown above a rigid rotating magnetic disk at such a height that it is both aerodynamically stable and immune to collisions with disk asperities. A position adjustable magnetic transducer is mounted on the slider and is controllably lowered to an operating position very close to the disk where its position is maintained by a servo system. An anticipator probe detects the presence of asperities on the disk in the path traversed by the transducer, and generates a control signal which causes the transducer to be retracted to a safe height.

REFERENCES:
patent: 3614579 (1971-10-01), Fulton
patent: 3863124 (1975-01-01), Pierce et al.
Patents Abstracts of Japan, vol. 7, No. 67, Mar. 19, 1983.
Patents Abstracts of Japan, vol. 6, No. 137, Jul. 24, 1982.
IBM Technical Disclosure Bulletin, vol. 26, No. 6, Nov. 1983.
Patents Abstracts of Japan, vol. 7, No. 274, Dec. 7, 1983.
Patents Abstracts of Japan, vol. 9, No. 156, Jun. 29, 1985.

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