METHOD FOR RECORDING AND REPRODUCING AND APPARATUS FOR THE SAME

METHOD FOR RECORDING AND REPRODUCING AND APPARATUS FOR THE SAME

A record/playback method and apparatus are provided to set up stable tilt condition of the lens and a recording medium in the entire region of the recording medium in consideration of the surface state of the actual recording medium. A record/playback apparatus comprises a light source(10), a lens u...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SON, DO HYEON
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:A record/playback method and apparatus are provided to set up stable tilt condition of the lens and a recording medium in the entire region of the recording medium in consideration of the surface state of the actual recording medium. A record/playback apparatus comprises a light source(10), a lens unit(50), a gap error signal detection unit(70,80), and a controller(90). A record/playback method includes a step for changing tilt condition between the lens unit and a recording medium(200) and detecting gap error signal for every changed tilt condition, and a step for determining the final tilt condition by comparing gap error signals.