| 摘要 |
PURPOSE: A method for acquiring the position value of a lens without the memory region of an image sensor is provided to minimize the hunting phenomenon of the movement of the lens using a voice coil motor. CONSTITUTION: A power on reset part(110) drives a device after a pre-set period of delay. An inter-integrated circuit(I2C) part(120) receives an auto focusing command algorithm signal. A digital to analog converting(DAC) part(130) receives a digital signal and outputs an analog signal. A register(140) inputs a digital signal from the I2C part to the DAC part. A memory(150) includes a hysteresis table. |
