| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize a radio wave receiver etc. capable of certainly reproducing a data signal even if the signal has large fluctuation in voltage level. <P>SOLUTION: A signal (a) as a detection signal is inputted into a signal reproducing circuit 632. At a point (b), first feedback is applied to a signal obtained by performing differentiating processing to the signal (a) with a signal (d) outputted from a differential amplifier AMP, and at a point (c), second feedback is applied to a signal obtained by performing integrating processing to a signal at the point (b) with the signal (d) outputted from the differential amplifier AMP. Then, the signal (d) based on a result of comparison between the potential of the point (b) and the potential of the point (c) is outputted from the differential amplifier AMP, and this signal (d) is outputted as a reproduced signal obtained by reproducing a data signal contained in the signal (a). <P>COPYRIGHT: (C)2005,JPO&NCIPI |
