OPTICAL RECORDING MEDIUM, METHOD OF MAKING OPTICAL RECORDING MEDIUM, METHOD OF PROCESSING PLAYBACK SIGNAL AND EVALUATION METHOD Russian patent published in 2012 - IPC G11B20/22

Abstract RU 2450371 C2

FIELD: information technology.

SUBSTANCE: device 21 for detecting BCA and the discrimination circuit 22 of the medium collect waveform distortion information to determine waveform distortion of the playback signal played back by the optical head 12. A waveform variable leveller 16 changes the parameter used to carry out the distortion reduction process in order to reduce waveform distortion of the playback signal based on waveform distortion information.

EFFECT: high quality of playing back high-frequency signal.

19 cl, 14 dwg

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RU 2 450 371 C2

Authors

Mijasita Kharumitsu

Khino Jasumori

Sodzi Mamoru

Itou Kijotaka

Dates

2012-05-10—Published

2007-11-30—Filed