| 摘要 |
PROBLEM TO BE SOLVED: To shorten a processing time necessary for eliminating the offset of a tracking error signal and also to eliminate the offset of a tracking error signal to be generated during a re-production. SOLUTION: In a processing eliminating an offset from a tracking error signal TE, when the frequency of the tracking error signal TE becomes low, a detection signal DS to be obtained by passing the tracking error signal TE through a low-pass filter 14 is held by a hold circuit 15. Moreover, a processing eliminating an offset from the tracking error signal TE is performed when an optical pickup 2 performs a track jumping operation.
|
