OPTICAL PICK-UP METHOD AND DEVICE FOR MULTILAYER RECORDING MEDIUM

An optical pick-up method and device for multilayer recording medium using a source of reading radiation, a detector of reflected signal, an optical system for focusing the reading radiation into information layer and said detector of reflected signal, an arrangement for focusing and tracking contro...

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Bibliographic Details
Main Authors MAGNITSKII, SERGEI, LEVICH, EUGENE
Format Patent
LanguageEnglish
French
German
Published 11.11.2009
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:An optical pick-up method and device for multilayer recording medium using a source of reading radiation, a detector of reflected signal, an optical system for focusing the reading radiation into information layer and said detector of reflected signal, an arrangement for focusing and tracking control and means for suppression interference of layers reflected signals.
Bibliography:Application Number: EP20050857344