OPTICAL DISK DRAWING APPARATUS, OPTICAL DISK DRAWING SYSTEM AND OPTICAL DISK DRAWING METHOD
Application 1422/KOL/2007 published 2008-07-11, filed 2007-10-17
In the optical disk drawing apparatus of the present invention, an automatic adjusting area where the drawing operation is not carried out is provided in the optical disk, laser light is irradiated onto the formed automatic adjusting area so as to control the focus serve gain, so that a stable focus servo control can be carried out. No. of Pages : 38 No. of Claims : 10
Applicant
1)YAMAHA CORPORATION
:10-1, NAKAZAWA-CHO, NAKA-KU, HAMAMATSU-SHI SHIZUOKA Japan
Inventor
1)ITOGA HISANORI 2)FUSHIKI TATSUO
International Info
Classification: G11B7/00
Priority Information
2006-283592 Japan 2006-10-18