| 摘要 |
The present invention relates to method and apparatus for controlling the slide of an optical pickup installed in the optical disk device so that deviation of an optical lens from an optical axis may be corrected. The corrective action is taken when the deviation reaches or is beyond a predetermined range. The predetermined is narrower than the maximum movable range of the optical lens. Also the corrective action is accomplished by adjusting either the DC component or the overall bandwidth of the servo gain loop depending on whether the rotational rate of an optical disk is high or low. Such method prevents or minimizes object lens from over-shifting or freely oscillating.
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