KR970007804B1 - Automatic color control device of color television - Google Patents

Automatic color control device of color television Download PDF

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Publication number
KR970007804B1
KR970007804B1 KR1019940006429A KR19940006429A KR970007804B1 KR 970007804 B1 KR970007804 B1 KR 970007804B1 KR 1019940006429 A KR1019940006429 A KR 1019940006429A KR 19940006429 A KR19940006429 A KR 19940006429A KR 970007804 B1 KR970007804 B1 KR 970007804B1
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South Korea
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color
signal
amount
crt
current
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KR1019940006429A
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Korean (ko)
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KR950028544A (en
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박해룡
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대우전자 주식회사
배순훈
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/13—Discrete devices, e.g. 3 terminal devices
    • H01L2924/1304—Transistor

Abstract

A controller capable of automatically controlling color amount to which is applied to a CRT driver according to a complex of a screen is disclosed. In the controller, a chrominance signal reproducing means(10) receives an external color amount set signal and an image signal among broadcasting signals from a broadcasting station and reproduces the image signal based on the color amount set signal. A color amount control value judging means(50) detects the CRT driving signal(-Y) from a CRT driving signal output means(20) and controls a control value of a chrominance signal according to a height of the CRT driving signal. A color amount output means(60) applies a chrominance signal proportional to the color amount control value controlled by color amount control value judging means(50) to chrominance signal reproducing means(10) to control the chrominance.

Description

컬러텔레비전의 컬러량자동조정장치Color television automatic adjustment device

제1도는 본 발명의 일실시예에 따른 컬러텔레비전의 컬러량자동조정장치의 회로도이다.1 is a circuit diagram of a color television automatic adjusting device of a color television according to an embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 색신호재생수단20 : CRT구동신호출력수단10: color signal reproducing means 20: CRT driving signal output means

30 : CRT구동수단40 : CRT(Cathod Ray Tube)30: CRT driving means 40: CRT (Cathod Ray Tube)

50 : 컬러량조정치판단수단60 : 컬러량출력수단50: color amount adjustment value judging means 60: color amount output means

본 발명은 컬러텔레비전의 컬러량자동조정장치에 관한 것으로, 보다 상세하게는 시청자가 화면컬러량을 설정하여 둔 상태에서 CRT(음극선관)를 구동시키는 CRT구동수단에 인가되는 컬러량이 화면의 복잡성에 따라 자동으로 조정될 수 있도록 된 컬러텔레비전의 컬러량자동조정장치에 관한 것이다.The present invention relates to a color television automatic adjustment device for color television, and more particularly, the amount of color applied to the CRT driving means for driving the CRT (cathode ray tube) while the viewer sets the screen color amount is related to the complexity of the screen. The color television automatic adjustment device that can be adjusted automatically according to the.

일반적으로, 방송국으로부터 전송되는 방송신호 즉, 휘도신호·반송색신호·동기신호 등의 복합영상 신호는 안테나를 통해 수신되어 시청자가 희망하는 방송신호를 선국함에 의해 영상처리과정 및 음성처리과정을 거쳐 영상신호는 CRT상에 대스플레이됨과 동시에 음성신호는 스피커를 통해 출력된다.In general, a broadcast signal transmitted from a broadcasting station, that is, a complex video signal such as a luminance signal, a carrier color signal, and a synchronization signal, is received through an antenna and tunes to a broadcast signal desired by a viewer, thereby performing an image process through an image processing process and an audio processing process. The signal is displayed on the CRT and the audio signal is output through the speaker.

그러한 방송신호가 영상처리과정을 거쳐 영상신호로서 CRT상에 디스플레이됨에 있어 CRT와 직결되는 수단으로서 색신호재생회로 및 색신호출력회로가 설치되어 있다.When such a broadcast signal is displayed on a CRT as a video signal through an image processing process, a color signal reproduction circuit and a color signal output circuit are provided as means directly connected to the CRT.

여기서, 색신호재생회로는 튜너, 영상중간주파증폭회로, 영상검파회로, 영상증폭회로 등을 거쳐 도달한 방송신호에서 반송색신호를 분리하고 그 반송색신호에서 색도신호를 검출하여 CRT를 구동하는데 필요한 신호를 재생하게 된다. 또한, 색신호출력회로는 주지된 바와 같이 영상증폭회로와 상기 색신호 재생회로로부터의 휘도신호와 색도신호를 각각 증폭시켜 CRT구동수단에 인가시킴으로써 그 CRT상에서 영상이 재현될 수 있도록 하게 된다.Here, the color signal reproduction circuit separates the carrier color signal from the broadcast signal reached through a tuner, an image intermediate frequency amplifier circuit, an image detection circuit, an image amplifier circuit, and detects a chromaticity signal from the carrier color signal to drive a signal necessary for driving a CRT. Will play. Further, as is well known, the color signal output circuit amplifies the luminance signal and chroma signal from the image amplification circuit and the color signal reproducing circuit and applies them to the CRT driving means so that the image can be reproduced on the CRT.

또한, 현재 제품화되어 판매되고 있는 컬러텔레비전에는 소정의 컬러량 조정키가 설치되어 있는 바, 그 컬러량조정키는 시청자가 컬러텔레비전을 시청하고 있는 도중에 CRT상에 재현되고 있는 화면의 컬러량이 적정하지 않은 경우 시청자가 임의대로 컬러량을 조정할 수 있도록 제공된다.In addition, a predetermined color quantity adjustment key is provided in a color television currently commercialized and sold, and the color quantity adjustment key is not appropriate for the color amount of the screen reproduced on the CRT while the viewer is watching the color television. If not, the viewer can adjust the color amount arbitrarily.

그러나, 대부분의 컬러텔레비전은 시청자가 컬러량조정키를 이용하여 설정하여 둔 컬러량을 기초로 CRT상에 재현되는 화면의 컬러량이 좌우되는 바, 예컨대 시청자가 소절레벨로 컬러량을 설정하여 둔 상태에서 상기 색신호재생회로 및 색신호출력회로에서 출력되는 CRT구동수단에 인가되는 컬러량 즉, 휘도신호 및 색도신호의 양은 화면의 복잡성에 따라 변화되어야 하는데, 이미 시청자에 의해 컬러량이 설정된 상태에서는 화면이 복잡한 경우와 복잡하지 않은 경우의 CRT구동수단에 인가되는 컬러량은 항상 같게되어 예컨대 시청자가 상기 화면이 복잡하지 않은 경우를 기준으로 컬러량을 설정한 경우에는 화면이 복잡하지 않고 단순할 때에는 정상적인 화면재현이 되지만 화면이 복잡한 경우에는 정상적인 화면재현이 이루어지지 않는 문제가 발생된다.However, in most color televisions, the amount of color of the screen reproduced on the CRT is determined based on the color amount set by the viewer using the color adjustment key. For example, the color level is set at the measure level. The amount of color applied to the CRT driving means output from the color signal reproducing circuit and the color signal output circuit, i.e., the amount of the luminance signal and the chromaticity signal should be changed according to the complexity of the screen. When the amount of color applied to the CRT driving means is not the same as in the case of the case is not complicated, for example, when the viewer sets the amount of color based on the case where the screen is not complicated, the screen is not complicated and the screen is normal. However, if the screen is complicated, there is a problem that normal screen reproduction does not work. The.

따라서, 본 발명은 상기한 사정을 감안하여 이루어진 것으로, 그 목적은 시청자가 화면컬러량을 설정하여 둔 경우 화면의 복잡성에 따라 CRT(Cathod Ray Tube ; 음극선관)구동수단에 인가되는 컬러량이 자동으로 조정될 수 있도록 한 컬러텔레비전의 컬러량자동조정장치를 제공함에 있다.Accordingly, the present invention has been made in view of the above circumstances, and an object thereof is to automatically adjust the amount of color applied to a CRT (Cathod Ray Tube) driving means according to the complexity of the screen when the viewer sets the screen color amount. The present invention provides a color television automatic adjustment device that can be adjusted.

상기한 목적을 달성하기 위해 본 발명의 일실시예에 따른 컬러텔레비전의 컬러량자동조정장치는 외부로부터 인가되는 컬러량설정신호와 방송국으로 부터의 방송신호중의 영상신호를 인가받아 그 컬러량 설정신호를 기초로 영상신호를 재생하기 위한 CRT구동신호를 출력하는 색신호재생수단과, 그 색신호재생수단에서 재생되는 휘도신호와 색도신호를 증폭출력시켜 CRT를 구동시킬 수 있는 구동전압으로서 CRT구동수단에 인가하는 CRT구동신호출력수단을 갖춘 컬러텔레비전에 있어서, 상기 CRT구동신호출력수단에서 출력되는 상기 CRT구동신호를 검출하여 그 고저에 따라 색도신호의 조정치를 제어하는 컬러량조정치판단수단과, 그 컬러량조정치판단수단에서 제어된 컬러량조정치에 비례한 색도신호를 상기 색신호재생수단에 제공하여 색도신호의 조정이 이루어지도록 하는 컬러량출력수단이 추가로 구성된다.In order to achieve the above object, the apparatus for automatically adjusting color quantity of color television according to an embodiment of the present invention receives a color amount setting signal applied from the outside and an image signal of a broadcast signal from a broadcasting station, and receives the color amount setting signal. A color signal reproducing means for outputting a CRT driving signal for reproducing an image signal based on the < Desc / Clms Page number 5 > A color television having a CRT driving signal output means, comprising: a color quantity adjusting value judging means for detecting the CRT driving signal output from the CRT driving signal output means and controlling an adjustment value of a chromaticity signal according to its height; The chroma signal signal is provided to the color signal reproducing means in proportion to the color amount adjustment value controlled by the stationary determining means. The color amount output means for this to occur is further configured to.

본 발명의 바람직한 실시양태에 따르면, 상기 컬러량조정치판단수단은 상기 "구동신호출력수단에서 증폭출력되는 휘도신호의 전류량을 검출하는 전류구동량검출부와, 그 전류구동량검출부에서 검출된 전류량을 적분하는 적분회로 및 그 적분회로에서 출력되는 적분치를 기초로 가변적인 전류량을 발생시키는 가변전류량발생부로 구성된다.According to a preferred embodiment of the present invention, the color amount adjustment value judging means integrates the current drive amount detection unit for detecting the current amount of the luminance signal amplified by the drive signal output unit, and the current amount detected at the current drive amount detection unit. It consists of an integrating circuit and a variable current amount generating unit for generating a variable current amount based on the integral value output from the integrating circuit.

상기와 같이 구성된 본 발명의 일실시예에 따르면, 이미 시청자가 컬러량을 설치하여 두었다고 하더라도 컬러량조정치판단수단으로부터의 컬러량조정치에 따른 컬러량 즉, 색도신호가 컬러량출력수단에서 출력되는 색신호재생수단의 소정단자에 인가되므로 화면의 복잡성정도에 따른 컬러량변동이 자동으로 조정된다.According to the embodiment of the present invention configured as described above, even if the viewer has already installed the color amount, the color signal corresponding to the color amount adjustment value from the color amount adjustment value determination means, that is, the color signal outputted from the color amount output means. Since it is applied to a predetermined terminal of the reproducing means, the color amount variation is automatically adjusted according to the degree of complexity of the screen.

이하, 첨부된 도면을 참조하여 본 발명을 더욱 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described the present invention in more detail.

제 1 도는 본 발명의 일실시예에 따른 컬러텔레비전의 컬러량자동조정장치의 회로도로서, 참조부호10은 CRT(40)상에 디스플레이되는 화면의 컬러량이 시청자에 의해 이미 시청하기에 적절한 컬러량레벨로 설정됨에 따른 컬러량설정신호와 방송국으로부터의 방송신호중의 영상신호 예컨대 휘도신호와 색도신호를 인가받아 그 컬러량설정신호를 기초로 상기 영상신호를 재생하는 색신호재생수단이다.1 is a circuit diagram of a color television automatic adjustment device of a color television according to an embodiment of the present invention, and reference numeral 10 denotes a color amount level suitable for viewing by a viewer by the color amount of a screen displayed on the CRT 40. And a color signal reproducing means for reproducing the video signal on the basis of the color amount setting signal and the video signal of the broadcast signal from the broadcasting station, for example, a luminance signal and a chromaticity signal.

20은 상기 색신호재생수단(10)에서 재생되는 휘도신호와 색도신호를 증폭출력시켜 CRT(40)를 구동시키는 CRT구동수단(30)에 구동전압으로서 인가하는 CRT구동신호출력수단으로서, 그 CRT구동신호출력수단(20)은 통상적으로 상기 색신호재생수단(10)에서 출력되는 영상신호를 2단증폭시키는 복수의 증폭수단(Q1, Q2)으로 구성된다.20 is a CRT drive signal output means for amplifying and outputting the luminance signal and chroma signal reproduced by the color signal reproducing means 10 and applying it as a driving voltage to the CRT driving means 30 for driving the CRT 40. Signal output means 20 is typically composed of a plurality of amplification means (Q1, Q2) for amplifying the video signal output from the color signal reproduction means 10 in two stages.

50은 상기 CRT구동신호출력수단(20)에서 출력되는 색도신호와 휘도신호중에서 휘도신호를 검출하여 그 휘도신호량의 고저에 다라 색도신호의 조정치를 판단하는 컬러량조정치판단수단이다.50 is a color amount adjustment value determining means for detecting a luminance signal from the chroma signal and the luminance signal output from the CRT driving signal output means 20 and determining the adjustment value of the chroma signal according to the height of the luminance signal amount.

여기서, 상기 컬러량조정치판단수단(50)은 상기 CRT구동신호출력수단(20)에서 증폭출력되는 휘도신호의 전류량을 검출하는 전류구동량검출부(50A)와, 그 전류구동량검출부(50A)에서 검출된 전류량을 적분하여 예컨대 송상측과 수상측의 매초 주사선수를 맞추기 위한 동기신호를 출력시키는 적분회로(50B)및 그 적분회로(50B)에서 출력되는 적분치에 따라 가변적인 전류량을 발생시키는 가변전류량발생부(50C)로 구성된다.Here, the color amount adjustment value judging means 50 includes a current drive amount detecting unit 50A for detecting the current amount of the luminance signal amplified by the CRT drive signal output means 20, and the current driving amount detecting unit 50A. An integrated circuit 50B for integrating the detected current amount and outputting a synchronization signal for matching the scanning player every second on the transmission side and the receiving side, and a variable for generating a variable current amount according to the integral value output from the integration circuit 50B. It consists of an electric current quantity generating part 50C.

한편, 상기 전류구동량검출부(50A)는 상기 CRT구동신호출력수단(20)의 출력단의 전류레벨에 따라 전류구동능력이 설정되는 트랜지스터(Q3)로 구성된다.On the other hand, the current drive amount detection unit 50A is configured of a transistor Q3 whose current drive capability is set according to the current level of the output terminal of the CRT drive signal output means 20.

그리고, 상기 적분회로(50B)는 상기 트랜지스터(Q3)의 전류구동치에 따라 충전레벨이 조정되는 충전소자(C2)를 포함하여 구성된다.The integrating circuit 50B includes a charging element C2 whose charging level is adjusted according to the current driving value of the transistor Q3.

또, 상기 가변전류량발생부(50C)는 동작전원(VCC)에 저항(R5)을 매개로 애노드가 접속되고 상기 적분 회로(50C)의 출력단에 다이오드(D1)를 매개로 캐소드가 접속된 발광다이오드(LD)와, 그 발광다이오드(LD)의 발광량에 따라 전류량을 발생시키는 전계효과트랜지스터(Q4)로 이루어진 포토커플러로 구성된다.In addition, the variable current amount generating unit 50C has an anode connected to the operating power supply V CC via a resistor R5 and a cathode connected to the output terminal of the integrating circuit 50C via a diode D1. And a photocoupler comprising a diode LD and a field effect transistor Q4 which generates an amount of current in accordance with the amount of light emitted by the light emitting diode LD.

한편, 상기 가변전류량발생부(50C)는 상기 적분회로(50C)의 충전소자(C2)에 충전되는 충전량이 많게 되는 경우 발광량이 적게 되고 상기 충전소자(C2)에 충전되는 충전량이 적게 되는 경우에는 발광량이 많도록 제어되는 발광다이오드(LD), 그 발광다이오드(LD)의 발광량에 따라 색도신호에 대한 전류량을 발생시키는 전계효과트랜지스터(Q4)로 이루어진 포토커플러이다.On the other hand, the variable current amount generating unit 50C has a low light emission amount when the charge amount charged in the charging element C2 of the integrating circuit 50C increases, and when the charge amount charged in the charge element C2 decreases. The photocoupler includes a light emitting diode LD controlled to have a large amount of light emission, and a field effect transistor Q4 which generates a current amount for a chromaticity signal according to the light emission amount of the light emitting diode LD.

여기서, 60은 상기 컬러량조정치판단수단(50)의 가변전류량발생부(50C)에서 출력되는 가변전류량에 비례하는 색도신호를 추출하여 상기 색신호재생수단(10)의 소정단자(A)에 인가시키는 컬러량출력수단이다.Here, 60 denotes a chroma signal which is proportional to the variable current amount output from the variable current amount generation unit 50C of the color amount adjustment value determining means 50 and applied to the predetermined terminal A of the color signal reproducing means 10. Color quantity output means.

여기서, 상기 컬러량출력수단(60)은 색도신호입력단(C)에 상호직렬로 일단이 접속된 콘덴서(C3)와 코일(L1) 및 그 콘덴서(C3)와 코일(L1)의 중간노드에 일단이 접속된 콘덴서(C4)로 이루어진 대역필터로 구성된다.Here, the color quantity output means 60 is once at the intermediate node of the capacitor C3 and the coil L1 and the capacitor C3 and the coil L1 connected at one end in series to the chromaticity signal input terminal C. It consists of a bandpass filter which consists of this connected capacitor C4.

상기와 같이 구성된 본 발명의 일실시예에 따른 컬러텔레비전의 컬러량자동조정장치에 의한 컬러량 자동조정동작을 제 1 도의 회로도를 기초로 설명하면 다음과 같다.When the color amount automatic adjustment operation by the color amount automatic adjustment device of the color television according to the embodiment of the present invention configured as described above will be described based on the circuit diagram of FIG.

일단, 색신호재생수단(10)에는 시청자가 미리 시청하기에 적절한 컬러량레벨을 설정함에 따른 컬러량 설정신호와 도시되지 않은 튜너, 영상중간주파증폭회로, 영상검파회로, 영상증폭회로 등을 거쳐 도달한 방송신호가 인가된다. 이어, 상기 색신호재생부(10)는 그 방송신호에서 반송색신호를 분리하고 그 반송색신호에서 색도신호를 검출하여 CRT(40)를 구동하는데 필요한 신호를 재생시키게 된다. 그 후, CRT구동신호출력수단(20)는 상기 색신호재생수단(10)로부터의 재생신호를 2단증폭시켜 상기 CRT(40)를 구동시키는 CRT구동수단(30)에 구동신호로서 인가하게 된다.First, the color signal reproducing means 10 arrives via a color amount setting signal and a tuner, an image intermediate frequency amplifier circuit, an image detector circuit, an image amplifier circuit, and the like, which are set in accordance with a color quantity level suitable for viewing by the viewer in advance. One broadcast signal is applied. Subsequently, the color signal reproducing unit 10 separates a carrier color signal from the broadcast signal, detects a chromaticity signal from the carrier color signal, and reproduces a signal necessary to drive the CRT 40. Thereafter, the CRT drive signal output means 20 amplifies the reproduced signal from the color signal reproducing means 10 in two stages and applies it as a drive signal to the CRT drive means 30 for driving the CRT 40.

상기한 CRT구동수단(30)에 상기 CRT구동신호출력수단(20)로부터의 구동신호가 인가됨에 있어서, 상기 CRT구동신호출력수단(20)의 출력단의 일측(B)에 저항(R1)을 매개로 베이스가 접속된 전류구동량검출부(50A)의 트랜지스터 (Q3)는 상기 CRT구동신호출력수단(20)로부터의 컬러량 즉, 휘도신호량을 검출하게 된다.When the drive signal from the CRT drive signal output means 20 is applied to the CRT drive means 30, a resistor R1 is applied to one side B of the output terminal of the CRT drive signal output means 20. The transistor Q3 of the current drive amount detection unit 50A connected to the low base detects the color amount from the CRT drive signal output means 20, that is, the luminance signal amount.

여기서, 상기 트랜지스터(Q3)의 베이스에 인가되는 전류량(휘도신호량)이 많은 경우 즉, 화면이 복잡한 경우 적분회로(50B)를 구성하는 구성요소중의 하나인 콘덴서(C2)에 충전되는 전류량은 많게 되고 그에 반하여 가변전류량발생부(50C)를 구성하는 구성요소중의 하나인 발광다이오드(LD)에 인가되는 전류량은 적게 되어 실질적으로 상기 가변전류량발생부(50C)에서 발생되는 전류량은 적게 된다.Here, when the amount of current (luminance signal amount) applied to the base of the transistor Q3 is large, that is, when the screen is complicated, the amount of current charged in the capacitor C2, which is one of the components constituting the integrated circuit 50B, is On the contrary, the amount of current applied to the light emitting diode LD, which is one of the components constituting the variable current amount generation unit 50C, is small, and the amount of current generated by the variable current amount generation unit 50C is substantially reduced.

이어, 컬러량출력수단(60)에서는 상기 가변전류량발생부(50C)로부터의 저량의 전류량에 비례하는 컬러량 즉, 색도신호(C)를 추출하여 상기 색신호재생수단(10)의 색도시호입력단자(A)에 인가함으로써 CRT(40)상의 불완전한 컬러량이 자동으로 조정된다.Subsequently, the color amount output means 60 extracts a color amount, that is, a chroma signal C, which is proportional to the low amount of current from the variable current amount generating unit 50C, and then the chromaticity code input terminal of the color signal reproducing means 10. By applying to (A), the amount of incomplete color on the CRT 40 is automatically adjusted.

한편, 상기 트랜지스터(Q3)의 베이스에 인가되는 전류량(휘도신호량)이 적은 경우 즉, 화면이 단순한 경우 상기 적분회로(50B)를 구성하는 구성요소중의 하나인 콘덴서(C2)에 충전되는 전류량은 적게 되고 그에 반하여 상기 가변전류량발생부(50C)를 구성하는 구성요소중의 하나인 발광다이오드(LD)에 인가되는 전류량은 많게 되어 실질적으로 상기 가변전류량발생부(50C)에서 발생되는 전류량은 많게 된다.On the other hand, when the amount of current (luminance signal amount) applied to the base of the transistor Q3 is small, that is, when the screen is simple, the amount of current charged in the capacitor C2 which is one of the components constituting the integrating circuit 50B. On the contrary, the amount of current applied to the light emitting diode LD, which is one of the components constituting the variable current amount generating portion 50C, is large, so that the amount of current generated in the variable current amount generating portion 50C is large. do.

이어, 상기 컬러량출력수단(60)에서는 상기 가변전류량발생부(50C)로부터의 저량의 전류량이 비례하는 컬러량 즉, 색도신호(C)를 추출하여 상기 색신호재생수단(10)의 색도신호입력단자(A)에 인가함으로써 CRT(40)상의 불완전한 컬러량이 자동으로 조정된다.Subsequently, the color amount output means 60 extracts a color amount, that is, a chroma signal C, which is proportional to the current amount of the low amount from the variable current amount generating unit 50C, and inputs the chroma signal of the color signal reproducing means 10. By applying to the terminal A, the amount of incomplete color on the CRT 40 is automatically adjusted.

상기와 같이 본 발명의 일실시예에 따른 컬러텔레비전의 컬러량자동조정장치에 의하면, 이미 시청자가 컬러량을 희망하는 레벨로 설장하여 두었다고 하더라도 컬러량조정치판단수단으로부터의 컬러량조정치에 따른 컬러량 즉, 색도신호가 컬러량출력수단에서 출력되어 색신호재생수단의 색도신호입력단자에 인가되고 그 인가된 가변컬러량에 의해 CRT상에 나타나는 화면이 아무리 복잡하더라도 그 화면에 따른 컬러량은 자동으로 조정된다.According to the color television automatic adjustment device of the color television according to the embodiment of the present invention as described above, even if the viewer has already set the color amount to a desired level, the color amount according to the color amount adjustment value from the color amount adjustment value determination means. That is, the chromaticity signal is output from the color quantity output means and applied to the chromaticity signal input terminal of the color signal reproducing means, and the amount of color according to the screen is automatically adjusted no matter how complicated the screen appears on the CRT by the applied variable color quantity. do.

Claims (5)

외부로부터 인가되는 컬러량설정신호와 방송국으로부터의 방송신호중의 영상신호를 인가받아 그 컬러량설정신호를 기초로 영상신호를 재생하기 위한 CRT구동신호(-Y)를 출력사는 색신호재생수단(10)과, 상기 색신호재생수단(10)에서 재생되는 휘도신호와 색도신호를 증폭출력시켜 CRT(40)를 구동시키기 위한 구동전압으로서 CRT구동수단(30)에 인가하는 CRT구동신호출력수단(20)을 갖춘 컬러텔레비전에 있어서, 상기 CRT구동신호출력수단(20)에서 출력되는 상기 CRT구동신호(-Y)를 검출하여 그 고저에 따라 색도신호의 조정치를 제어하는 컬러량조정치판단수단(50)과, 상기 컬러량조정치판단수단(50)에서 제어된 컬러량조정치에 비례한 색도신호를 상기 색신호재생수단(10)에 인가하여 색도신호의 조정이 이루어지도록 하는 컬러량출력수단(60)이 추가로 구성된 것을 특징으로 하는 컬러텔레비전의 컬러량자동조정장치.Color signal reproducing means (10) for receiving a color quantity setting signal applied from the outside and a video signal of a broadcast signal from a broadcasting station and outputting a CRT driving signal (-Y) for reproducing the image signal based on the color quantity setting signal And CRT drive signal output means 20 for amplifying and outputting the luminance signal and the chroma signal reproduced by the color signal reproducing means 10 to the CRT driving means 30 as a driving voltage for driving the CRT 40. In the equipped color television, the color amount adjustment value judging means (50) for detecting the CRT drive signal (-Y) output from the CRT drive signal output means (20) and controlling the adjustment value of the chromaticity signal according to its height; The color amount output means 60 is further configured to apply a chromaticity signal proportional to the color amount adjustment value controlled by the color amount adjustment value judging means 50 to the color signal reproducing means 10 to adjust the chroma signal. that Color television automatic color adjustment device characterized in that the. 제 1 항에 있어서, 상기 컬러량조장치판단수단(50)은 상기 CRT구동신호출력수단(20)에서 증폭출력되는 휘도신호의 전류량을 검출하는 전류구동량검출부(50A)와, 상기 전류구동량검출부(50A)에서 검출된 전류량을 적분하는 적분회로(50B) 및 상기 적분회로(50B)에서 출력되는 적분치를 기초로 가변적인 전류량을 발생시키는 가변전류량발생부(50C)로 구성된 것을 특징으로 하는 컬러텔레비전의 컬러량자동조정장치.2. The current driving amount detecting unit (50A) for detecting the current amount of the luminance signal amplified by the CRT driving signal output unit (20), and the current driving amount detecting unit (100). Color television, characterized in that it comprises an integrating circuit 50B for integrating the amount of current detected at 50A and a variable current generating unit 50C for generating a variable amount of current based on the integral value output from the integrating circuit 50B. Color quantity automatic adjustment device. 제 2 항에 있어서, 상기 전류구동량검출부(50A)는 상기 CRT구동신호출력수단(20)의 출력단의 전류레벨에 따라 전류구동능력이 설정되는 트랜지스터(Q3)로 구성된 것을 특징으로 하는 컬러텔레비전의 컬러량자동조정장치.[4] The color television of claim 2, wherein the current driving amount detecting unit 50A comprises a transistor Q3 whose current driving capability is set according to the current level of the output terminal of the CRT driving signal output means 20. Color level adjustment device. 제 3 항에 있어서, 상기 적분회로(50B)는 상기 트랜지스터(Q3)의 전류구동치에 따라 충전레벨이 조정되는 충전소자(C2)를 포함하여 구성된 것을 특징으로 하는 컬러텔레비전의 컬러량자동조정장치.The apparatus of claim 3, wherein the integrating circuit 50B includes a charging element C2 whose charging level is adjusted according to the current driving value of the transistor Q3. . 제 4 항에 있어서, 상기 가변전류량발생부(50C)는 상기 적분회로(50C)의 충전소자(C2)에 충전되는 충전량이 많게 되는 경우 발광량이 적게 되고 상기 충전소자(C2)에 충전되는 충전량이 적게 되는 경우에는 발광량이 많도록 제어되는 발광다이오드(LD)와, 그 발광다이오드(LD)의 발광량에 따라 색도신호에 대한 전류량을 발생시키는 전계효과트랜지스터(Q4)로 이루어진 포토커플러인 것을 특징으로 하는 컬러텔레비전의 컬러량자동조정장치.The method of claim 4, wherein the variable current amount generating unit (50C) is a small amount of light emission when the charge amount to be charged in the charging element (C2) of the integrating circuit (50C) is reduced and the charge amount charged in the charging element (C2) In the case of a decrease, the photocoupler includes a light emitting diode LD controlled to have a large amount of light emission and a field effect transistor Q4 for generating a current amount for a chromaticity signal according to the light emission amount of the light emitting diode LD. Color television automatic adjustment device.
KR1019940006429A 1994-03-30 1994-03-30 Automatic color control device of color television KR970007804B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7384567B2 (en) 2003-12-22 2008-06-10 Electronics And Telecommunications Research Institute Method of manufacturing thin film magnetic head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7384567B2 (en) 2003-12-22 2008-06-10 Electronics And Telecommunications Research Institute Method of manufacturing thin film magnetic head

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