Patent ID: 6118919
Filing Date: 2000-09-12
Classification: H04N

Abstract:
A video signal processor comprising:a first filter for extracting a luminous signal component from a video signal input to a recording system of a VTR;an FM modulating circuit for converting the luminous signal component output from the first filter into a low-frequency carrier wave FM signal component;a color signal trapping circuit for extracting the low-frequency carrier wave FM signal component from an output signal of the FM modulating circuit, said color signal trapping circuit having a trapping frequency which varies in accordance with a control input;a second filter for extracting a color signal component from the video signal;a down-converting circuit for converting the color signal component output from the second filter into a down-converted color signal;a third filter for extracting the down-converted color signal from an output signal of the down converting circuit;a color signal level detecting circuit for detecting a level of the color signal component included in the video signal and supplying a detection output to the color signal trapping circuit as the control input; andan adder circuit for adding an output signal of the color signal trapping circuit and an output signal of the third filter together,wherein said color signal level detecting circuit converts the level of the color signal component included in the video signal into binary data, and said color signal trapping circuit has a trapping frequency which varies to a frequency of the down converted color signal or a lower frequency in accordance with the binary data output from the color signal level detecting circuit.