| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical disk apparatus in which iterative control in the servo control of the optical disk apparatus can be performed with a high degree of precision, and which has servo performance stabilized by the use of the iterative control. Ž<P>SOLUTION: A suppression degree of the iterative control system is increased against a disturbance of a frequency of the integral multiple of a rotation frequency in a predetermined rotation phase range including a rotation phase range in which a servo deviation is detected. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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