| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a binarization circuit and binarization method in which appropriate binarization can be performed on noise regarding the binarization circuit and binarization method for binarizing an input signal. <P>SOLUTION: The present invention relates to a binarization circuit for binarizing an input signal, including: a waveform shaping circuit (111, 112) for differentiating the input signal and shaping it into a fully rectified waveform; a hold circuit (113) for holding a maximum value of signals shaped by the waveform shaping circuit (111, 112); a threshold value generating circuit (114) for generating a threshold value in accordance with the maximum value held by the hold circuit (113); a comparator circuit (115) for comparing a signal shaped by the waveform shaping circuit (111, 112) with the threshold value generated by the threshold value generating circuit (114); and an output circuit (116) for generating a signal binarizing the input signal in accordance with a result of the comparison in the comparator circuit (115). <P>COPYRIGHT: (C)2007,JPO&INPIT |
