| 摘要 |
PURPOSE:To stably read an address signal, by recording signals after eliminating a color signal component corresponding to the address signal section. CONSTITUTION:An address signal outputted from a wave shape circuit 28 is applied to a multivibrator 31, where the signal is converted into one digit pulse, in which the time constant is set longer than the frequency of the address signal and the address signal sections are consecutive. The output is applied to a comparator 33 via an LPF32, compared with a comparison voltage inputted from a terminal E and one digit pulse of the address signal section is outputted. This signal is applied to an inhibition circuit 30, where a low frequency conversion color signal outputted from a color signal processing section 8 is eliminated for the section only with an address signal section pulse. |
