Patent ID: 7313077

Claim:
An emission current adjusting method for an optical disk device, which is irradiated with a laser beam to perform recording and reproduction of data, the laser beam is driven by emission currents including a current for generating a peak level emission intensity; a current for generating a minimum bottom level emission intensity; and a current for generating an erase level emission intensity between the peak and bottom levels, the emission current adjusting method comprising the steps of: obtaining an ideal value of an erase current after recording is started; measuring an erase current after recording is started; and determining an emission current after recording is started based on, wherein a bottom current is defined as the current which generates the minimum bottom level emission intensity, an erase current is defined by subtracting the bottom current from the current which generates the erase level emission intensity, and a peak current is defined by subtracting the erase current from the current which generates the peak level emission intensity.