Positioning device for a write/read magnetic head in a magnetic-

Details Positioning device for a write/read magnetic head in a magnetic- Positioning device for a write/read magnetic head in a magnetic-

1978-02-08

1980-04-15

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 2108

Patent

active

041986660

ABSTRACT:
A positioning device for a write/read magnetic head in a magnetic disc data storage device comprising a motor-driven guide disc, with a spiral-shaped guide wall arranged at right angles to the plane of the guide disc, for a guide element in the form of a ball-bearing on a magnetic-head support. Due to the greatly reduced friction it is possible to achieve highly accurate positioning within an extremely brief period of time and with an extremely low power requirement. This device may be used to position the heads in magnetic disc systems for the recording and/or reproduction of analog or digital signals.

REFERENCES:
patent: 3882541 (1975-05-01), Ghose et al.
patent: 4040106 (1977-08-01), Medley

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