WRITING METHOD FOR MULTILAYER OPTICAL DISC
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United States of America Patent
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Issued Date -
Feb 17, 2011
app pub date -
Aug 4, 2010
filing date -
Aug 17, 2009
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Abandoned
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Abstract
A writing method for a multilayer optical disc. The method includes: measuring and recording optimum internal gains obtained when the objective lens is located on each inner side of the pick-up head, respectively, checking the writing direction based on the specific writing direction on each data layer of the disc, selecting the inner optimum internal gain when the writing direction is toward outside, and selecting the opposite inner optimum internal gain when the writing direction is toward inside to minimize the offset of the tracking error signal.
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