Multilayer optical disc having disc information

A multi-layer record carrier is for recording information by writing marks in a track. The record carrier has a first recording layer (40) and a second recording layer (41), and each recording layer has a pregroove (14) indicating the position of the track according to an opposite track path. The pr...

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Bibliographic Details
Main Authors NIJBOER, JAKOB GERRIT, MARTENS, HUBERT CECILE FRANCOIS, WOERLEE, PIERRE HERMANUS
Format Patent
LanguageChinese
English
Published 16.12.2004
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:A multi-layer record carrier is for recording information by writing marks in a track. The record carrier has a first recording layer (40) and a second recording layer (41), and each recording layer has a pregroove (14) indicating the position of the track according to an opposite track path. The pregroove exhibits a modulated wobble for representing control information. A lead-in part of the pregroove has first control information for the first recording layer, and the lead-out part on the second recording layer has second control information including recording parameters for the second recording layer. The device the device has a head (22) for providing the beam and wobble detection means (32) for retrieving control information from each layer.
Bibliography:Application Number: TW200493107511