Dynamic information storage or retrieval – Simultaneous diverse types of storage or retrieval
Patent
1987-12-14
1990-02-27
Stephan, Steven L.
Dynamic information storage or retrieval
Simultaneous diverse types of storage or retrieval
369110, 369 13, 360114, G11B 1300, G11B 712
Patent
active
049052152
ABSTRACT:
An information-reproducing system for reading information from a plurality of storage layers of an optical disk. The system includes a light source for irradiating the optical disk with a radiation, a first information-reproducing device for reading information from one of the plurality of storage layers, based on a change in an amount of the radiation reflected by the one storage layer, and a second information-reproducing device for reading information from another of the storage layers, based on a change in an angle of Kerr rotation of the radiation reflected by the above-indicated another storage layer.
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Hattori Yutaka
Yoshida Yukimasa
Brother Kogyo Kabushiki Kaisha
Nguyen Hoa T.
Stephan Steven L.
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