| 摘要 |
PROBLEM TO BE SOLVED: To provide a disk oscillating suppression device which suppresses wobbling of an optical disk to which reproduction operation of a signal is performed by an optical pickup. SOLUTION: A sound-vibration object 14 is set up at a position facing a face of the optical disk 1, and an oscillation suppression signal according to a level of a focal error signal to be inputted in a focus servo circuit 11 which performs focal control operation of an optical pickup 4 is supplied to the sound-vibration object 14, and oscillation of the optical disk is suppressed by the signal which is released sound from the sound-vibration object 14. COPYRIGHT: (C)2006,JPO&NCIPI
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