MAGNETO-OPTICAL RECORDING MEDIUM REPRODUCING METHOD AND MAGNETO-OPTICAL RECORDING MEDIUM REPRODUCING DEVICE

摘要

PROBLEM TO BE SOLVED: To solve the problem that medium noises caused by high reproducing laser power is not controlled when a magneto-optical recording medium using magnetic ultra resolution is reproduced because an alternating current having the most effective frequency and amplitude for controlling laser noises caused by return light is used in a conventional high frequency superposing method. SOLUTION: The alternating current having the most effective frequency and amplitude for controlling the medium noises caused by high reproducing laser power is superposed on a laser driving current.