| 摘要 |
PURPOSE:To perform the optimum recording control corresponding to the sensitivity of a medium and the temperature of a utilization environment on an optical disk device record-controlling in a rewritable recording medium. CONSTITUTION:A signal with a prescribed pattern is formed on a storage medium 12 previously by changing a laser strength variously. Then the prescribed component of the signal of the prescribed pattern is detected by a second harmonic wave component detecting part 14 at a recording time and the strength of a laser beam for recording is decided by control part 16. based on the prescribed component and set to a light source part 13. |
