| 摘要 |
<p>Reliable scanning of the tracks and a reliable track jump are intended to be ensured even in the case of eccentric optical media and in the case of forces acting externally on an actuator (4). For this purpose, the tracks crossed by a scanning beam are determined and a count is formed in a track counter (1). The relative position of the scanning beam with respect to the tracks to be scanned is then regulated on the basis of the count.</p> |
