| 摘要 |
The present invention relates to a tilt control device and method for an optical disc player, wherein an output offset of a tilt detecting means (3) is calibrated by using an output of a focus controller (7). Since the offset is calibrated based on the focus controlling output, the calibration can be performed for all written and non-written discs. As an alternative, a tilt control with high accuracy can be performed by adjusting a tilt frame based on at least two measurements of the controlling output of said focus control means at different radial positions. Thereby, the disc can be positioned in a radial tilt zero position with the aid of the focus controlling output. Now, the tilt detecting means is no longer required for tilt adjustment.
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