| 摘要 |
An optical disc recording/reproducing apparatus capable of performing a stable reading of address information. A signal generating circuit for detecting a wobble signal based on a meander of the recording area of an optical disc, comprising a lowpass filter (LPF) ( 15 ) for passing therethrough only those lower parts of the frequencies of signals from a light receiving element of an optical pickup which are near a wobble signal band, or a bandpass filter (BPF) ( 16 ) for passing therethrough only those frequencies of the signals from the light receiving element which are within a predetermined range of a wobble signal frequency band, wherein the LPF ( 15 ) or BPF ( 16 ) is used to eliminate the affect of record pulses superimposed on the signals from the light receiving element, thereby reducing address information acquisition errors due to the affection of noise and hence obtaining a stable recording operation.
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