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AssigneeSanyo Electric Co., Ltd.
InventorsSatoshi Sumi, Yoshihisa Suzuki, Sayoko Okada
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A magneto-optical disk apparatus generates magnetic field onto a magneto-optical recording medium prior to recording signals in the magneto-optical recording medium having a recording layer and a reproduction layer, by use of magnetic field and laser beam. The magneto-optical apparatus then adjusts a position of a magnetic head that generates the magnetic field, under a state where the laser beam is irradiated, by utilizing that an irradiation spot of the laser beam deviates due to eccentricity of the magneto-optical recording medium. This position adjustment is carried out based on, for example, a beam position signal showing the irradiation spot of the laser beam and/or a detection signal which is detected after the laser beam is modulated by the magnetic field.
A magneto-optical disk apparatus that records signals, utilizing a laser beam and a magnetic field, in a magneto-optical recording medium having a recording layer and a reproduction layer, the apparatus which generates the magnetic field onto the magneto-optical recording medium prior to recoding the signals and which adjusts a position of a magnetic head that generates the magnetic field, under a state where the laser beam is irradiated, by utilizing that an irradiation position of the laser beam deviates due to eccentricity of the magneto-optical recording medium.
A magneto-optical disk apparatus that records signals in a magneto-optical recording medium having a recording layer and a reproduction layer, the apparatus comprising:
A magneto-optical disk apparatus that records signals in a magneto-optical medium having a recording layer and reproduction layer, the apparatus comprising:
A magneto-optical disk apparatus that records signals, utilizing a laser beam and a magnetic field, in a magneto-optical medium having at least a recording layer and a reproduction layer, the apparatus which adjusts a position of a magnetic head that generates the magnetic field, prior to recording the signals, by utilizing that an irradiation position of the laser beam deviates due to eccentricity of the magneto-optical medium under a state where there is a leakage of magnetic field from an optical head and the laser beam is irradiated.
Dependencies are inferred from the claim text.