| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical disk drive that corrects other-layer stray light for each of respective information layers of a multilayer optical disk having a plurality of information layers to normalize an error signal, and actuates a servo. <P>SOLUTION: The optical disk drive includes other-layer stray light detecting means and other-layer stray light correcting means, and normalizes the error signal after correcting other-layer stray light for a full-addition signal, so that control is performed with the error signal having been normalized correctly, thereby improving recording and reproduction performance of the drive. <P>COPYRIGHT: (C)2012,JPO&INPIT |
