Optical recording medium, recorder for optical recording...

G - Physics – 11 – B

Patent

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Details

G11B 7/007 (2006.01) G11B 7/004 (2006.01) G11B 7/0045 (2006.01) G11B 7/005 (2006.01) G11B 7/013 (2006.01) G11B 7/24 (2006.01) G11B 7/26 (2006.01) G11B 20/00 (2006.01) G11B 7/09 (2006.01) G11B 20/10 (2006.01)

Patent

CA 2319371

In an optical recording medium having a track including plural pits formed based on first data to be recorded and lands defined between neighboring pits, these pits are recorded as they are deformed based on the second data. The first and second data are synthesized and reproduced to realize audio reproduction with a broad frequency range. Moreover, the first data are adapted to be reproducible by a customary disc reproduction device. The reproduction of the first data is controlled by the second data to protect recorded data.

Selon cette invention, on déforme les creux, qui sont formés sur la base d'un premier ensemble de données à enregistrer et qui constituent une piste conjointement avec les espaces vierges séparant lesdits creux, sur la base d'un deuxième ensemble de données, et ce de manière à effectuer un enregistrement. On reproduit de façon combinée les premier et deuxième ensembles de données de manière à effectuer la reproduction sonore à bande de fréquence large. Le premier ensemble de données peut être reproduit au moyen d'un dispositif de lecture de disque traditionnel. La reproduction du premier ensemble de données est commandée à l'aide du deuxième ensemble de données, ce qui permet de protéger les données enregistrées.

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