APPARATUS FOR READING AND/OR WRITING OPTICAL RECORDING MEDIA

Methods and apparatuses for controlling optical storage appliances which allow a signal to be obtained even in areas of the recording media in which there is no contrast, whose phase angle with respect to a tracking error signal indicates the movement direction of an actuator relative to the tracks...

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Bibliographic Details
Main Author BUECHLER, CHRISTIAN
Format Patent
LanguageEnglish
French
German
Published 30.04.2008
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:Methods and apparatuses for controlling optical storage appliances which allow a signal to be obtained even in areas of the recording media in which there is no contrast, whose phase angle with respect to a tracking error signal indicates the movement direction of an actuator relative to the tracks and the track type. A weighting factor is set from the focus error signals from the main and secondary scanning beam, and a suitable track type signal is obtained.
Bibliography:Application Number: EP20040732948