| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical disk device which can finely control a driving control voltage signal which generates emitting power of a laser beam, even when the emitting power is low. <P>SOLUTION: A range of driving voltage per 1 LSB of a DA conversion circuit which controls an emitting power level of the laser beam is made updatable. <P>COPYRIGHT: (C)2003,JPO |
