High speed track access for optical disks using acousto-optic de

Details High speed track access for optical disks using acousto-optic de High speed track access for optical disks using acousto-optic de

1986-09-15

1988-07-26

Beha, Jr., William H.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

350358, 369 45, 369109, G11B 7085, G02F 133

Patent

active

047605650

ABSTRACT:
A process for accessing disk tracks in an optical storage disk using a laser beam passed through an acousto-optic deflector which generates an undeflected beam and at least one deflected beam both of which are focussed on the surface of the disk. The deflected beam is used to read or write data and the undeflected beam is used to follow a servoing structure on the disk.

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patent: 4525824 (1985-06-01), Hatano et al.
patent: 4550249 (1985-10-01), Damen et al.
patent: 4656618 (1987-04-01), Kaku et al.

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