发明名称 |
HAND-SHAKE CORRECTION METHOD AND APPARATUS OF CAMERA MODULE FOR USE IN MOBILE DEVICE |
摘要 |
A hand-shake correction apparatus and method for a camera module for typical use in a mobile device. A camera unit includes an angular velocity sensor for sensing an angular velocity of a hand-shake motion of a camera, a position detection sensor for detecting a current position of an image sensor, and an actuator for actuating the image sensor. An Optical Image Stabilizer (OIS) circuit unit controls the actuator using a multi-rate Proportional Integrate Derivative (PID) control scheme that performs control a plurality of times using a shorter control period compared with existing PID controls for a basic period, in which a reference value is updated according to a control reference value by which the image sensor optimally shifts to correct a hand-shake motion.
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申请公布号 |
US2008152332(A1) |
申请公布日期 |
2008.06.26 |
申请号 |
US20070958413 |
申请日期 |
2007.12.18 |
申请人 |
KOO JUN-MO;CHOI JIN-YOUNG;KANG BYUNG-KWON;JANG DONG-HOON;KIM PYO-JAE;SONG DONG-SUNG;CHANG HYUNG-JIN |
发明人 |
KOO JUN-MO;CHOI JIN-YOUNG;KANG BYUNG-KWON;JANG DONG-HOON;KIM PYO-JAE;SONG DONG-SUNG;CHANG HYUNG-JIN |
分类号 |
G03B17/00 |
主分类号 |
G03B17/00 |
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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