Tracks or pits; Shape, structure or physical properties thereof (layout of tracks or pits used as the identification information G11B7/007)

Full Title

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation , reproducing using an optical beam at lower power ; Record carriers therefor (G11B11/00, G11B13/00 take precedence) > Record carriers characterised by shape, structure or physical properties, or by the selection of the material (characterised by the arrangement of information on the carrier G11B7/007) > Tracks or pits; Shape, structure or physical properties thereof (layout of tracks or pits used as the identification information G11B7/007)

Child Classifications

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• G11B 7/24073 Tracks
• G11B 7/24085 Pits
• G11B 7/24091 Combinations of pits and tracks with specific interrelation