发明名称 |
Optical pickup apparatus and controlling method thereof |
摘要 |
An optical pickup apparatus includes an objective lens that focuses light on an optical recording medium; an actuator that drives the objective lens in a direction of an optical axis of the objective lens toward or away from an optical recording medium in response to an input voltage applied to the actuator; an actuator driven distance sensor that senses a distance the actuator moves according to time or the input voltage applied to the actuator; an input voltage calculator that calculates an input voltage to be applied to the actuator that compensates for a hysteresis phenomenon that occurs during movement of the actuator based on the distance sensed by the actuator driven distance sensor; and a controller that controls operation of the actuator according to the input voltage calculated by the input voltage calculator.
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申请公布号 |
US7706218(B2) |
申请公布日期 |
2010.04.27 |
申请号 |
US20060401871 |
申请日期 |
2006.04.12 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
PAE JUNG-GUG;KIM BONG-GI;LEE HYO-CHAN;PARK SOO-HAN;KIM SEOK-JUNG |
分类号 |
G11B7/00 |
主分类号 |
G11B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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