| 摘要 |
An optical disc playback apparatus includes an optical pickup, an RF amplifier that generates a tracking error (TE) signal based on an electrical signal from the optical pickup, a defect detector that detects a defect on the optical disc and that outputs a DFCT signal indicating the detected defect, a switch that outputs a hold signal when a defect is detected based on the DFCT signal, a driver that controls the optical pickup based on the output signal of the switch, a corrector that extracts an oscillation component of the optical pickup from the TE signal in response to the DFCT signal when a defect is detected and that outputs a correction signal indicating the oscillation component, and an adder that adds the correction signal from the corrector to the hold signal.
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