Optical information recording and reproducing apparatus

Details Optical information recording and reproducing apparatus Optical information recording and reproducing apparatus

1988-11-16

1990-03-20

McElheny, Jr., Donald

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

358907, G11B 700

Patent

active

049107224

ABSTRACT:
The optical information recording and reproducing apparatus of the present invention comprises a detecting device detecting that an optical disc-like recording medium, having a spiral track, has made one rotation. A track jump circuit moves the position of a light beam, radiated on one segment of the spiral track of the optical disc-like recording medium, to an objective track segment. A track jump correcting circuit corrects the position of the light beam by the number of tracks which is equal to the number of one-rotation detecting signals obtained from the detecting device during the movement by the track jump circuit. A kick back circuit holds the light beam to always be radiated on the objective track segment.

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patent: 4761772 (1988-08-01), Murakami
patent: 4814897 (1989-03-01), Kojima et al.

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