JPS63152385U

JPS63152385U -

Info

Publication number: JPS63152385U
Application number: JP4462687U
Authority: JP
Priority date: 1987-03-26
Filing date: 1987-03-26
Publication date: 1988-10-06
Anticipated expiration: 2002-03-26
Also published as: JPH067655Y2

Description

[Brief explanation of the drawing]

第１図は本考案のカラーデイスプレイ装置の第
１実施例の回路図、第２図は本考案の第２実施例
のブロツク図、第３図はその回路図、第４図は本
考案の第３実施例の回路図である。１……複合ビデオ信号入力端子、１ａ，１ｂ，
２ａ，２ｂ……固定接点、１ｃ，２ｃ……可動接
片、２……第１入力回路、３……分離回路、４，
１４，１４ａ，１４ｂ……Ｙ（輝度）信号出力端
子、５，１６，１６ａ，１６ｂ……Ｃ（搬送色）
信号出力端子、６，６ａ，６ｂ……Ｙ（輝度）信
号入力端子、７，９，１３，１５……バツフア回
路、８，８ａ，８ｂ……Ｃ（搬送色）信号入力端
子、１０……Ｙ信号処理回路、１１……Ｃ信号処
理回路、１２……デイスプレイ、１７……第２入
力回路、１８……検出回路、１９……入力コネク
タ端子、２０……出力コネクタ端子、Ｑ_１……Ｎ
ＰＮトランジスタ、Ｒ_１〜Ｒ_５……抵抗、Ｓ_１〜
Ｓ_４，Ｓ_１１，Ｓ_２２……スイツチ。 1 is a circuit diagram of a first embodiment of a color display device of the present invention, FIG. 2 is a block diagram of a second embodiment of the present invention, FIG. 3 is a circuit diagram thereof, and FIG. 4 is a circuit diagram of a second embodiment of a color display device of the present invention. FIG. 3 is a circuit diagram of a third embodiment. 1...Composite video signal input terminal, 1a, 1b,
2a, 2b... Fixed contact, 1c, 2c... Movable contact piece, 2... First input circuit, 3... Separation circuit, 4,
14, 14a, 14b...Y (luminance) signal output terminal, 5, 16, 16a, 16b...C (carrying color)
Signal output terminal, 6, 6a, 6b...Y (luminance) signal input terminal, 7, 9, 13, 15... Buffer circuit, 8, 8a, 8b...C (transport color) signal input terminal, 10... Y signal processing circuit, 11... C signal processing circuit, 12... Display, 17... Second input circuit, 18... Detection circuit, 19... Input connector terminal, 20... Output connector terminal, Q ₁ ... N
PN transistor, _R1 to _R5 ...Resistance, _S1 to
S ₄ , S ₁₁ , S ₂₂ ... switch.

Claims

[Scope of claims for utility model registration] (1) The first device to which the composite video signal is supplied from the outside
an input terminal, a separating means for separating the composite video signal supplied through the first input terminal into a luminance signal and a carrier color signal, and a luminance signal and a carrier color signal are respectively supplied from the outside. a second input terminal, a switching means to which an output signal of the second input terminal and an output signal of the separation means are respectively supplied, and a switching means for switching and outputting a necessary input signal, and a luminance signal output of the switching means; a carrier color signal output terminal to which the carrier color signal output of the switching means is supplied; a luminance signal processing means to which the luminance signal output of the switching means is supplied; A color display comprising a carrier color signal processing means to which the carrier color signal output is supplied, and an image display means to which output signals of the luminance signal processing means and the carrier color signal processing means are respectively supplied. Device. (2) The switching means is connected to the second input terminal and detects that an external terminal supplying the luminance signal and/or the carrier color signal is connected to the second input terminal. 2. The color display device according to claim 1, wherein the luminance signal and the carrier color signal supplied from the second input terminal are switched and outputted according to the supplied detection signal. (3) The switching means causes a switch connected to the detection means to output the composite video signal supplied from the first input terminal, regardless of whether or not an external terminal is connected to the second input terminal. A color display device according to claim 1, characterized in that it is a utility model.