Patent ID: 7684298
Filing Date: 2010-03-23
Classification: G11B

Abstract:
1. An optical information recording method for recording information onto a rewritable optical disc, which is used for information recording, in a manner that laser light is irradiated on a recording layer of the optical disc to thereby form marks thereon, the method comprising: in a zone of the optical disc where a linear velocity is low, determining an optimal recording parameter of a record waveform at the linear velocity in accordance with a jitter value of a reproduced signal generated in a trial write; in a zone of the optical disc where the linear velocity is high, determining an optimal recording parameter of a record waveform at the linear velocity in accordance with information obtainable from an amplitude value of a reproduced signal generated in a trial write that is executed with a recording parameter determined from the result of a previous trial write executed at the linear velocity on the optical disc; and determining an optimal recording parameter of a record waveform in the event of recording information into an arbitrary address position in a manner that a recording parameter is obtained through a predetermined calculation method from results of learning of optimal recording parameters on two or more zones of the optical disc where the linear velocities are different from one another.