Optical information processing method and apparatus therefor

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal

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369124, 369100, 369175, 360 65, 250201, G11B 709

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active

046139648

ABSTRACT:
An optical information processing method and an apparatus therefor for information recording on or information readout from a recording medium by converging a light beam onto the recording medium, in which the wave form equalization characteristic of the signal upon information recording or information readout is controlled in accordance with the information on the state of focus of the light beam on the recording medium.

REFERENCES:
patent: 4165495 (1979-08-01), Takahashi
patent: 4340950 (1982-07-01), Kosaka
patent: 4370679 (1983-01-01), Ceshkovsky

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