Method and apparatus for recording a continuous spiral informati

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system

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369 46, 369 54, 369 51, G11B 7095, G11B 2722

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active

047003359

ABSTRACT:
An optical information recording method comprises a first step of scanning a radiation beam on a disk-like recording medium without effecting tracking control, and recording information as concentric circular or spiral information tracks for at least one round on the recording medium, and a second step of scanning the radiation beam while effecting tracking control so as to keep a predetermined interval with respect to an information track recorded one round previously, thereby recording the information on the recording medium.

REFERENCES:
patent: 4142209 (1979-02-01), Hedlund et al.
patent: 4290122 (1981-09-01), Bates et al.
patent: 4363116 (1982-12-01), Kleuters et al.
patent: 4453239 (1984-06-01), Musha et al.

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