| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable the recording of a second information matter such as letters, figures and the like recorded on a disk as the output difference of a large laser, and to enable, as a result, the recording of the clear second information matter, in an optical information recording apparatus, an optical information recording method, and an optical information recording medium. <P>SOLUTION: The optical information recording apparatus is constituted of a modulation signal forming means (a modulation circuit 4) for generating a modulation signal SB changed in response to a first information matter SA, a time change signal forming means 7 (a step waveform generating circuit 7) for forming a time change signal SF temporally changed according to the second information matter SE, a light quantity changing means (an optical modulator 10A) for changing the light quantity of a laser according to the time change signal SF and an optically modulating means (an optical modulator 10B) for turning on and off a laser beam L1 obtained by the light quantity changing means 10A according to the modulation signal SB. The change of light quantity of the laser by the second information matter SE is performed gently. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
