发明名称 Optical disc apparatus for recording and reproducing data onto and from an optical disc with grooves and lands
摘要 In a case where tracking control is carried out by a lens actuator (12) in performing a tracking pull-in operation in which tracking control is started in the state where tracking control is out of operation, the tracking control circuit (28) brings control into stable tracking control by moving the light spot onto a groove on the optical disc (1). After that, when tracking onto a land is needed, the tracking control circuit moves the light spot onto the land. This enables a pull-in action toward a stable tracking operation. <IMAGE>
申请公布号 EP0770993(A3) 申请公布日期 1997.07.16
申请号 EP19960307713 申请日期 1996.10.24
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 TAKAHARA, TAMANE;TANAKA, MASAHIKO;YAMAMURO, MIKIO
分类号 G11B7/007;G11B7/085;G11B7/09 主分类号 G11B7/007
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