Light source intensity control in an optical recording and repro

Details Light source intensity control in an optical recording and repro Light source intensity control in an optical recording and repro

1981-07-31

1984-01-17

Konick, Bernard

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369116, G11B 700

Patent

active

044266936

ABSTRACT:
An optical information recording and reproducing apparatus for optically recording and reproducing information on and from a disk-shaped information carrier having a guide track is disclosed. A digital track address prerecorded on the guide track is reproduced and the intensity of a recording laser beam is controlled by the reproduced digital track address so that the exposures of the recording laser beam at an inner periphery and an outer periphery of the disk-shaped information carrier rotated at a constant rotation speed are corrected to enable an optimum recording over an entire surface of the disk-shaped information carrier.

REFERENCES:
patent: 4057831 (1977-11-01), Jacobs et al.
patent: 4321635 (1982-03-01), Tsuyuguchi
patent: 4325135 (1982-04-01), Dil et al.
patent: 4328506 (1982-05-01), Yoshida et al.

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