发明名称 |
NEAR-FIELD GAP PULL-IN METHOD AND OPTICAL DISC APPARATUS THEREFOR |
摘要 |
A gap pull-in method and an optical disc apparatus. Whether light condensed on a disc as an actuator ascends is near-field light is determined using a gap error signal. The range of an actuator driving voltage value during a section where the decrease rate of the gap error signal is constant is obtained when it is determined that the light condensed on the disc is near-field light. Gap pull-in is performed on the disc during a section where the actuator driving voltage value is within the obtained range.
|
申请公布号 |
US2009154309(A1) |
申请公布日期 |
2009.06.18 |
申请号 |
US20080180603 |
申请日期 |
2008.07.28 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JEONG AN-SIK;SHIN JONG-HYUN;LEE KYUNG-GEUN;OTSUKA TATSUHIRO |
分类号 |
G11B7/00 |
主分类号 |
G11B7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|