| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical information recording method and an optical information recording device, in which the setting method for recording power is improved in performing intensity modulation recording with a smaller number of pulses than in a conventional recording method. <P>SOLUTION: In the recording method for the optical information recording medium to record the information with a pulse width modulation (PWM) method, in which the minimum unit for its length is set to Tw with natural numbers n1 and n2 being set as n1<n2, this recording method is the optical information recording method, in which record marks with different length, such as n1Tw and n2Tw, are recorded by a light beam through the intensity modulation with m-number of the pulses (m is the natural number as m<n), test recording is performed by sequentially changing the maximum value Pw for power of its recording signal pulses, a recording power Pwo is set up by evaluating the length of the record marks T1 (Pw) or T2 (Pw) measured by reproducing the patterns for the test recording and D1(Pw)=T1(Pw)-n1Tw and D2(Pw)=T2(PW)-n1Tw, which are differences (magnitudes of deviation) between theoretical lengths n1Tw or n2Tw. <P>COPYRIGHT: (C)2004,JPO |
