Magneto-optic disk apparatus.

摘要

In a magneto-optic disk apparatus which carries out recording, playback or erasing of data with a single laser beam, recorded data is read simultaneously with a recording or erasing operation to eliminate the time of waiting for the disk (3) to make a turn. A signal separation circuit (7) is provided for a magneto-optic disk apparatus which carries out recording, playback or erasing of data by applying a laser beam through an optical head (2) to a spot on a magneto-optic disk (3). In a recording or erasing operation, a magneto-optic playback signal (6) obtained from reflected light of a recording or erasing beam is input to the signal separation circuit (7) which separates and outputs the recorded data signal (8) contained in the magneto-optic playback signal (6) consequently to read a recorded data signal (10) simultaneously with carrying out a recording or erasing operation. <IMAGE>