| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical disk driving device which can prevent deterioration in recording data in still operation and improve reliability of recording of an optical disk. SOLUTION: A high-frequency current is superposed on a laser current for driving an LD1 from a high-frequency oscillating circuit 4 through transistors Q5, Q2, Q3 and Q4. At this point, a switch SW3a is switched over in response to the control from a system controller 10. A voltage VSR at the time of still operation, a voltage VVR at the time of normal reproduction, or 0V at other times is applied to the high-frequency oscillating circuit 4, and a high-frequency current having an amplitude corresponding to the voltage is applied to the laser current. |
