Magneto-optical recording and/or reproducing apparatus

摘要

The present invention concerns an apparatus for recording and/or reproducing on/from a magneto-optical recording medium (10). This apparatus comprises means (62) for generating a first channel clock used to write and/or read data in and/or from a first magneto-optical recording medium (10). The first magneto-optical recording medium (10) has a recording layer (13), the reproducing layer (11) and an intermediate layer (12) for magnetically coupling the recording layer (13) the reproducing layer (11) in stationary state, in which a magnetic coupling between said recording layer (13) and said reproducing layer (11) is lost in area (14) in which the temperature is increased to be higher than a predetermined temperature by the radiation of a light upon reproducing and in which a recorded information held on said recording layer (13) is read out from said reproducing layer (11) in the radiated area (5) except the area (14) in which said magnetic coupling is lost. Furthermore, the apparatus comprises means (62) for generating a second channel clock used to write and/or read data in and/or from a second magneto-optical recording medium (10) in which a recorded information is reproduced by using substantially whole area of the radiated area (5). Moreover, the apparatus comprises a discriminating means (70) for discriminating said first magneto-optical recording medium (10) and the second magneto-optical recording medium (10) and means (40) for switching first and second channel clocks in response to a discriminating signal from said discriminating means (70). <IMAGE> <IMAGE>