| 摘要 |
PURPOSE:To improve the resolution to obtain vivid pictures by synthesizing an FM luminance signal with a low band converted color signal after allowing the FM luminance signal to pass a comb line filter which eliminates a frequency part where the spectrum of the low band converted color signal exists. CONSTITUTION:In case of recording, the FM luminance signal is allowed to pass a comb line filter 13, which eliminates the frequency of the part where the spectrum of the low band converted color signal converted to a low band exists, before the FM luminance signal and the low band converted color signal are added by an adder 7. As the result, since the spectrum of the side band of the FM luminance signal in parts other than the part where the spectrum of the low band converted color signal exists passes through the filter 13 through the spectrum of the side band of the FM luminance signal in said part is dropped out, the band width of the luminance signal is widened practically, and the resolution is improved. In case of reproducing, the output of a head amplifier 14 is separated into the FM luminance signal and the low band converted color signal by a comb line filter 15, and they are supplied to signal processing circuits 16 and 17 respectively.
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