Method and apparatus for accurately positioning a magnetic recor

Details Method and apparatus for accurately positioning a magnetic recor Method and apparatus for accurately positioning a magnetic recor

1990-07-09

1991-10-29

Severin, David J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 7702, 360 7805, 360109, G11B 555, G11B 556

Patent

active

050620193

ABSTRACT:
A magnetic disk recording and reproducing apparatus is provided having a carriage which supports a magnetic head moving in radial directions about a magnetic disk which is rotatably supported on a body of the apparatus, a cam which is rotatable about a rotational shaft to control the radial position of the magnetic disk, an intermittent rotation mechanism which intermittently rotates the cam by a predetermined angular displacement, a click gear which drives the cam, a click lever which is provided, on one of its ends, a pawl which can disengageably engage with the click gear in order to restrict the angular position of the click gear, a fine adjustment member which movably supports one end of the click lever, and a driving device for moving the fine adjustment member in order to adjust the angular position of the click gear, in accordance with the track position of the magnetic head relative to the magnetic disk.

REFERENCES:
patent: 3924268 (1975-12-01), McIntosh et al.
patent: 4514773 (1985-04-01), Susz
patent: 4691252 (1987-09-01), Okada et al.
patent: 4713707 (1987-12-01), Heizman
patent: 4716481 (1987-12-01), Tezuka
patent: 4733315 (1988-03-01), Okuyama et al.
patent: 4747003 (1988-05-01), Tezuka
patent: 4763214 (1988-08-01), Shibaike
patent: 4811139 (1989-03-01), Maeda
patent: 4814908 (1989-03-01), Schmitz
patent: 4825313 (1989-04-01), Moribe et al.

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