| 摘要 |
<p>A focus control method and an optical disk drive using the same are provided to improve servo stability against disturbance during the aberration correction by optimizing parameters determining the property of servo control related signals in focus jumping. A focus control method comprises a step of executing aberration correction corresponding to the change of recorded layer to be accessed(S802), and a step of changing a parameter set value determining the property of signals used for servo control of an optical disk drive in accordance with the aberration correction amount which is applied during the aberration correction(S803), wherein the aberration correction includes spherical aberration correction.</p> |
