Patent ID: 9470888
Filing Date: 2016-10-18
CPC Classification: G02B,H04N

Claim Text:
1. A driving apparatus for a scanning mirror, comprising: an accumulator unit, configured to receive and add up a frequency control word and a first accumulation value to generate a second accumulation value; and a processor unit, coupled with the accumulator unit and configured to, according to the second accumulation value and a preset value, generate a driving signal and adjust the second accumulation value to output the first accumulation value; wherein the processor unit determines whether the second accumulation value is larger than the preset value; when the second accumulation value is larger than the preset value, the processor unit outputs the driving signal at a high logic level, and outputs a difference between the second accumulation value and the preset value to be the first accumulation value; and when the second accumulation value is not larger than the preset value, the processor unit outputs the driving signal at a low logic level, maintains the second accumulation value, and outputs the second accumulation value as the first accumulation value.