发明名称 Optical disc apparatus and driving method thereof
摘要 An optical disc apparatus, and a method of driving the same, includes a light focusing element disposed to focus light emitted from a light source onto a disc; an actuator to move the light focusing element toward or away from the disc according to a voltage applied to the actuator; a light intensity detection unit to detect the intensity of light reflected from the disc; a servo unit to generate a gap error signal and a third voltage, the third voltage being the sum of a first voltage and a second voltage, and to apply the generated third voltage to the actuator; and a control unit to control the servo unit to perform a gap pull-in operation when the light focusing element is moved toward the disc according to the gap error signal and the third voltage.
申请公布号 KR101346772(B1) 申请公布日期 2013.12.31
申请号 KR20070089969 申请日期 2007.09.05
申请人 发明人
分类号 G11B7/09;G11B7/1387 主分类号 G11B7/09
代理机构 代理人
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