| 摘要 |
PURPOSE:To exclude effect of noise by fetching data for plural number of times for each bit, comparing a binary digital value of each times and deciding 1 or 0 in binary value through majority decision. CONSTITUTION:As the method of the hardware, a majority decision circuit 8 which decides a polarity depending on a difference between negative and positive values by means of a counter is provided to the hardware. As the method of the software, majority decision of plural fetch results of outputs of A/D conversion from a waveform shaping output and serial/parallel data conversion are implemented based on the software of a CPU 7 processing a data signal to simplify the circuit constitution. Thus, effect of noise is eliminated. |
