| 摘要 |
<p>There is disclosed a crosstalk detector (101 SIMILAR 105) for detecting a quantity of crosstalk of signals optically read from a recording medium having a plurality of tracks for memorizing information. Where crosstalk detecting signals different from each other are recorded at positions in correspondence with each other on the normal with respect to the tracks between adjacent tracks on the recording medium, the detector comprises means (101, 102, 103) for comparing read signal levels between adjacent tracks at the positions where the crosstalk detecting signals are recorded to thereby calculate a quantity of crosstalk of the read signals. Further, where crosstalk detecting signals are recorded at positions which are not in correspondence with each other on the normal with respect to the tracks between adjacent tracks, the detector comprises means (104, 105) for comparing read signal levels between adjacent tracks at the positions where the crosstalk signals included in the read signals are recorded to thereby calculate a quantity of crosstalk of the read signals. <IMAGE></p> |
