Patent ID: 7266059
Filing Date: 2007-09-04
Classification: G11B

Abstract:
1. A method for calibrating tilt control values of a PUH in real time, the method being applied to an optical disk drive and comprising the steps of: creating a look-up table, which comprises optical disk data/physical addresses of a plurality of track zones and their corresponding tilt control values; reading tilt control values as the reference values from the look-up table according to the track position of the PUH; calculating a current tilt control value according to the reference values; controlling a PUH tilt according to the current tilt control value; reading a first decoding error generated in a decoding process of the optical disk drive; and calibrating the tilt control values, in which the tilt control values corresponding to the track zone are calibrated and updated into the look-up table when the first decoding error is larger than a decoding error threshold.