Acting track-crossing during tracking error adjust
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United States of America Patent
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Aug 16, 2011
Grant Date -
Dec 31, 2009
app pub date -
Jun 29, 2009
filing date -
Jun 27, 2008
priority date (Note) -
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Abstract
A method for enhancing the optical initializing operation comprises: sending a radial error signal from an optical pick-up unit to a radial error signal calibration unit; sending the radial error signal from the optical pick-up unit to an offset adjuster; sending a calibrated radial error signal from the radial error signal calibration unit to the offset adjuster and a gain adjuster; sending a radial actuator (RA) signal from the radial error signal calibration unit to activate a radial actuator during an initialization or a period for calculating RE signal calibrating parameters.
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