METHOD AND APPARATUS FOR GENERATING THE WOBBLE CLOCK SIGNAL
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United States of America Patent
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Issued Date -
Feb 12, 2009
app pub date -
Feb 4, 2008
filing date -
Oct 31, 2003
priority date (Note) -
Abandoned
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Abstract
A method for generating a wobble clock signal. When the wobble signal becomes deformed or a defect on the optical disc is found, the present invention provides a stable wobble clock signal, which is used to maintain a stable rotation speed when the optical disc is processed. In addition, the present invention also determines whether the wobble signal is deformed according to the result of comparing the width of the wobble signal at different status with the average of the half cycle width of the wobble signal.
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