Method and apparatus for recording a continuous spiral informati

Details Method and apparatus for recording a continuous spiral informati Method and apparatus for recording a continuous spiral informati

1984-01-26

1987-10-13

Cardillo, Raymond F.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

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

Patent

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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