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OPTICAL POINTING DEVICE AND METHOD OF ADJUSTING EXPOSURE TIME AND COMPARISON VOLTAGE RANGE OF THE OPTICAL POINTING DEVICE
OPTICAL POINTING DEVICE AND METHOD OF ADJUSTING EXPOSURE TIME AND COMPARISON VOLTAGE RANGE OF THE OPTICAL POINTING DEVICE
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机译:光学点装置以及调整光学点装置的曝光时间和比较电压范围的方法
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摘要
An optical pointing device and a method of adjusting an exposure time and a comparison voltage range of the optical pointing device are provided. The optical pointing device obtains a high-resolution image using a low-resolution analog-to-digital (A/D) converter, and calculates a movement value using the obtained image. Thus, the optical pointing device can calculate an accurate movement value, reduce production cost, and provide a rapid operating speed and low power consumption. Further, the optical pointing device can use the A/D converter having a relatively low signal-to-noise ratio of an input signal.
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