| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem which spares a process of a CPU for monitoring the confirmation of chattering and noise, and lowers the processing capability of the CPU. <P>SOLUTION: A chattering removing device has a means to take an input signal in by using a timer at a fixed time interval, a means to latch the fetched signal, a processing circuit to connect a plurality of steps of the latch means in series and a means to transmit the latched signal data to a step followed by the series-connected processing circuit at a fixed time interval and has a circuit to take the exclusive OR (XOR) of the first step latch data and the letch data of each step, after the second step and a circuit to take OR (OR) for all the exclusive OR. <P>COPYRIGHT: (C)2004,JPO |
