Dynamic information storage or retrieval – Storage medium structure – Layered
Patent
1994-10-05
1996-01-16
Nguyen, Hoa T.
Dynamic information storage or retrieval
Storage medium structure
Layered
369286, 369288, 3692751, 3461351, G11B 724
Patent
active
054854520
ABSTRACT:
An optical information recording medium configured to prevent signal reproduction due to intermodulation as well as to ensure a compatibility to players that involve read lights with different wavelengths and improved data transfer rate with higher information recording density. The optical information recording medium comprises a first recording layer for reflecting first incident light of a first wavelength to change an optical characteristic thereof and passing second incident light of a second wavelength different from the first wavelength, and a second recording layer for reflecting the second incident light to change an optical characteristic thereof, the first recording layer and the second recording layer are laminated in the order of the first and second recording layers from a side where the first incident light enters.
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Nguyen Hoa T.
Pioneer Electronic Corporation
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