| 摘要 |
<p>An optical disk apparatus is provided in which a track pitch is computed in accordance with a track number currently corresponding to a recording/reproduction head (3) and with a scale value detected by a position detection section (13) when the difference between a scale value obtained by a scale translator (17) and the scale value detected by the position detection section (13) exceeds a predetermined number of tracks, thereby correcting a track pitch used in the scale translator (17) using the computed track pitch.</p> |
