| 摘要 |
PURPOSE:To obtain an excellent reproducing luminance signal and to decrease an interference wave component by providing successively the first trapping part, a limiter part, the second trapping part, a low-pass filter part, the second limiter part and a demodultor part at the output side of reading means. CONSTITUTION:For the signal supplied to the demodulating part, the carrier component of the low area chrominance components is removed by the first trapping part 11, and the amplitude modulating component of the interference wave component mixed into the upper side wave band part side of the FM luminance signal is removed by the first limiter part 12. Continuously, by second trapping part 13, the carrier wave component of the low area chrominance components in the lower side wave band part side of the FM luminance signal is removed. Next, by a low-pass filter part 14, the component outside the mainfrequency band of the FM luminance signal is removed. By the second limiter part 15, the amplitude modulating component of the interference wave component, which remains at the upper side wave band side of the FM luminance signal, is removed. |
