| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve recording in an appropriate servo state by reducing residue of rotation frequency left due to a difference between recording light and adjacent servo light in circumferential position in adjacent track servo. <P>SOLUTION: For the adjacent track servo, the recording device emits recording light for recording a mark on a recording layer, and also emits adjacent servo light (ATS light) for adjacent track servo by which a constant distance in a disk radial direction is kept from the light, with an emitting position being different from the position of recording light in a disk circumferential direction. In this case, as a servo error signal based on a receiving light signal for the adjacent servo light, the recording apparatus obtains a correction servo error signal to be obtained when the adjacent servo light is emitted at a position in the disk circumferential direction that is the same as recording light. Using the correction servo error signal, the recording apparatus generates a tracking servo signal and carries out a tracking servo. <P>COPYRIGHT: (C)2013,JPO&INPIT |
