Patent ID: 6677878
Filing Date: 2004-01-13
Classification: H03M

Abstract:
An analog signal processing apparatus for generating a reference voltage for a microcontroller, comprises:a first input apparatus for inputting a first analog signal; a second input apparatus for inputting a second analog signal; an interrupt generating apparatus for generating an interrupt signal when the first analog signal and the second analog signal cross over; a voltage level determination apparatus for generating a voltage level determination signal; a first crossover voltage latch apparatus for input the first analog signal and the voltage level determination signal and outputting a first crossover voltage latch signal; a second crossover voltage latch apparatus for inputting the second analog signal and the voltage level determination signal and outputting a second crossover voltage latch signal; a first storage apparatus for storing the first crossover voltage latch signal and feeding back the first crossover voltage latch signal to the first input apparatus; and a second storage apparatus for storing the second crossover voltage lock signal and feeding back the second crossover voltage lock signal to the second input apparatus.