Optical information processor and method for accessing rotating

Details Optical information processor and method for accessing rotating Optical information processor and method for accessing rotating

1986-03-21

1989-01-31

Cardillo, Raymond F.

Dynamic information storage or retrieval

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

Mechanism control by the control signal

369 44, 369 46, 369112, 358342, G11B 709

Patent

active

048021539

ABSTRACT:
Accessing method and an apparatus therefor in an optical disc apparatus having an acousto-optic light deflector for deflecting a light spot to a different address or different track on an optical disc are disclosed. An auto-focus signal is held at a constant level for a predetermined period when the acousto-optic light deflector deflects the light spot. Thus, an affect caused by coexistence of a plurality of acoustic frequencies in the acoustic-optic device is eliminated and fast light accessing is attained.

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Suhara et al., "High-Performance Focusing Grating Coupler Fabricated by Electron-Beam Writing", 4/84.
Verber et al., "An Integrated Optical Comparator for Multichannel Data", 9/79, Proceedings of the Optical Communication Conference, pp. 13/6-1-3.

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