| 摘要 |
An magneto-optical disk device (100) includes a magnetic head (11), a DC magnetic field applying device (12), an optical head (13) and a magnetic field control circuit (16). The DC magnetic field applying device (12) applies a DC magnetic field to a magneto-optical recording medium (10) through a core of the magnetic head (11). The magnetic field control circuit (16) applies the DC magnetic field of a variable intensity to the magneto-optical recording medium (10) to determine the appropriate intensity of the DC magnetic field providing an error rate not exceeding a predetermined reference value in a reproduced signal of a predetermined recording pattern detected by the optical head (13). Consequently, the signal can be accurately reproduced from the magneto-optical recording medium (10) by domain-enlarging reproduction using the DC magnetic field. |
