JPH0262885U

JPH0262885U -

Info

Publication number: JPH0262885U
Application number: JP14149188U
Authority: JP
Priority date: 1988-10-28
Filing date: 1988-10-28
Publication date: 1990-05-10

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例の回路ブロツク図
、第２図は第２実施例の回路ブロツク図、第３図
は第３実施例の回路ブロツク図を、それぞれ顕わ
す。７…ＡＣＣ回路、１０…比較回路、Ｓ１，Ｓ２
…第１…第２スイツチ。 FIG. 1 shows a circuit block diagram of a first embodiment of the present invention, FIG. 2 shows a circuit block diagram of a second embodiment, and FIG. 3 shows a circuit block diagram of a third embodiment. 7...ACC circuit, 10...Comparison circuit, S1, S2
...First...Second switch.

Claims

[Claims for Utility Model Registration] A first YC separation circuit that separates a color signal and a luminance signal of a color video signal by band division, and a second YC separation circuit that separates a color signal and a luminance signal of a color video signal by a comb-shaped filter. a selection switch that selects the outputs of both YC separation circuits; and a selection control circuit that detects a vertical uncorrelated component of a color signal band, compares it with a reference level, and controls the selection switch based on the comparison output. A YC separation selection control circuit comprising: a YC separation selection control circuit comprising: an ACC circuit added at a preceding stage of the selection control circuit;