Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1981-12-17
1986-02-04
Richardson, Robert L.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369109, 369111, 369275, 358342, H04N 576, G11B 700
Patent
active
045690383
ABSTRACT:
An optical disk recording and reproducing system which uses an optical disk at least one side of which is formed with a spiral groove which has a V-shaped or inverted-trapezoid-shaped cross sectional configuration. Both the radially inward and outward sloped faces of the groove are used as recording tracks which are tracked or scanned with the spot of a light beam in the case of recording or reproduction.
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Nagashima Michiyoshi
Takenaga Mutsuo
Matsushita Electric - Industrial Co., Ltd.
Richardson Robert L.
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