| 摘要 |
PURPOSE: To prevent erroneous waveform shaping by eliminating the effect of common mode noise intruded in an input signal and an inverted input signal with respect to the waveform shaping circuit. CONSTITUTION: A bias means 16 receives an AC or pulsive input signal and an inverted input signal to the input signal and biases a reference voltage to the input signal and the inverted input signal. Pulse waveform conversion means 11-14 compare the input signal and the inverted input signal biased by the reference voltage respectively with a prescribed comparison voltage to provide an output of converted pulse waveform. Output pulse waveform decision means 22-30 decide an output pulse waveform based on the input pulse signal and the inverted pulse signal obtained by the pulse waveform conversion means. |
