| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laser driving method capable of stably writing data in an optical disk, and to provide an optical disk recording/reproducing device. <P>SOLUTION: The driving method for a laser driving circuit having a laser diode for applying a laser beam to an optical disk, a transistor connected in series to the laser diode, and a variable power source for applying a DC voltage to the laser diode comprises; a test emission step of causing the laser diode to test-emit light before the recording of data in the optical disk is started; a detection step of detecting an operation voltage of a connection point between the laser diode and the transistor; and a voltage adjusting step of adjusting the DC voltage of the variable power source based on the operation voltage. <P>COPYRIGHT: (C)2009,JPO&INPIT |
