Method and apparatus for detecting burst cutting area on optical disc

An apparatus for detecting a burst cutting areas on an optical disc, comprising:

• an optical pickup head, for emitting a laser beam to the burst cutting area of the optical disc and obtaining a radio frequency signal;
• a front-end processing unit, for receiving the radio frequency signal and for generating a BCA signal in response to the radio frequency signal;
• a sync pattern detector, for counting the BCA signal according to a reference clock and capable of detecting a sync pattern of the BCA signal and outputting a channel bit length counting value;
• a channel clock recovery device, for receiving the reference clock and the channel bit length counting value and for generating a channel clock according to the reference clock and the channel bit length counting value;
• and
• a data demodulator, for receiving the channel clock and the BCA signal and for transferring the BCA signal into a BCA data according to the channel clock;
• wherein the sync pattern detector is capable of continuously counting the BCA signal and continuously outputting a plurality of counting values, so that the sync pattern of the BCA signal is able to be determined according to at least three sequential counting values by the sync pattern detector.