KR850000161Y1 - Picture change circuit in television - Google Patents
Picture change circuit in television Download PDFInfo
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- KR850000161Y1 KR850000161Y1 KR2019830005317U KR830005317U KR850000161Y1 KR 850000161 Y1 KR850000161 Y1 KR 850000161Y1 KR 2019830005317 U KR2019830005317 U KR 2019830005317U KR 830005317 U KR830005317 U KR 830005317U KR 850000161 Y1 KR850000161 Y1 KR 850000161Y1
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- 230000005236 sound signal Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/036—Radio; TV
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- Multimedia (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
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Abstract
내용 없음.No content.
Description
제1도는 본 고안의 계통도.1 is a schematic diagram of the present invention.
제2도는 본 고안의 회로도이다.2 is a circuit diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 영상신호 검파회로 2 : 제1릴레이 회로1: Video signal detection circuit 2: First relay circuit
3 : 수평동기신호 적분회로 4 : 수평동기신호 분리회로3: horizontal synchronous signal integrating circuit 4: horizontal synchronous signal separating circuit
5 : 색상 선택회로 6 : 영상신호 증폭단5: color selection circuit 6: video signal amplifier
7 : 수상관 8 : 제2릴레이 회로7: water pipe 8: second relay circuit
9 : 음성신호 출력단 10 : 스피커9: audio signal output terminal 10: speaker
a1c1-a4c4: 릴레이 접점 b1c1-b4c4:릴레이 접점a 1 c 1 -a 4 c 4 : Relay contact b 1 c 1 -b 4 c 4 : Relay contact
R-Y : 적색차신호 G-Y : 녹색차신호R-Y: Red difference signal G-Y: Green difference signal
B-Y : 청색차신호B-Y: Blue difference signal
본 고안은 칼라텔레비젼에 있어서 영상신호가 임력되지 않을때에 화면에 나타나는 영상잡음과 음성신호의 잡음을 제거하는 동시에 사용자의 취향에 적합한 대치화상을 선택하여 수상관에 해당화상을 출력할 수 있는 전자회로에 관한 것이다.The present invention removes the noise of the video noise and the audio signal that appear on the screen when the video signal is not applied to the color television, and selects a substitute image suitable for the user's taste. It is about a circuit.
종래의 칼라 텔레비젼에 있어서는 챈널을 전환할 경우나 방송국에서 일시적으로 영상신호의 전송이 중단 될 경우, 또는 텔레비젼의 시청도중에 VTR을 접속하는 경우 및 비데오테이프를 교체하는 경우에 수상관의 화면에 영상신호가 임력되지 않으므로 스노우잡음과 같은 영상잡음이 화면에 나타나고 음성신호의 잡음이 발생하는 결점이 있었다.In a conventional color television, when a channel is switched, a broadcast station temporarily interrupts transmission of a video signal, or when a VTR is connected while watching TV, or when a video tape is replaced, the video signal is displayed on the screen of the receiving tube. Since video noise, such as snow noise, appeared on the screen and noise of audio signal occurred, there was a defect.
본 고안은 종래의 칼라 텔레비젼이 가지는 잡음발생의 제문제점을 해결한 것으로, 통상의 영상신호 검파회로에 색상선택회로와 수평동기신호의 유무에 따라 각기 동작하는 릴레이를 추가하므로써 영상신호의 무입력시에 사용자의 임의적인 선택에 따라 화면을 원하는 색상으로 대치하고 음성잡음을 제거할수 있도록 합에 그 목적이 있는 것이다.The present invention solves the problem of noise generation in the conventional color television, and adds a color selection circuit and a relay which operates according to the presence or absence of a horizontal synchronous signal to a normal video signal detection circuit. The purpose is to replace the screen with the color of your choice and remove the noise.
이하 본 고안이 구성 및 작용, 효과를 예시도면에 의거 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the configuration and operation, effects as follows.
본 고안은 영상신호 검파회로(1)에 릴레이(RY1)(RY2)(RY3), 트랜지스터(TR3), 저항(D5)(D6) 및 다이오드(D3)(D4)등으로 구성되는 제1릴레이회로(2)와 트랜지스터(TR1)(TR2), 콘덴서(C1)(C2), 다이오드(D1)(D2) 및 저항(R1)(R2)(R3)등으로 구성되는 수평동기신호 적분회로(3)를 차례로 연결하고, 제1릴레이회로(2)에 있는 릴레이(RY1)(RY2)(RY3)의 접점(b1)(b2)(b3)에는 가변저항(RV1)과 선택스위치(SW)에 의해 동작되는 색상선택회로(5)를 연결하며, 릴레이(RY1)(RY2)(RY3)의 임력측일단에는 제2릴레이회로(8)를 연결한 구조로 되어있다.The present invention is a relay (RY 1 ) (RY 2 ) (RY 3 ), transistor (TR 3 ), resistor (D 5 ) (D 6 ) and diode (D 3 ) (D 4 ) in the image signal detection circuit 1 The first relay circuit 2 and the transistor (TR 1 ) (TR 2 ), capacitor (C 1 ) (C 2 ), diode (D 1 ) (D 2 ) and resistor (R 1 ) (R 2 ) ) (R 3) contact point (b 1) of the relay (RY 1) (RY 2) (RY 3) in the horizontal synchronizing signal in turn connected to an integrating circuit 3, and the first relay circuit 2 which is constituted by a (b 2 ) (b 3 ) connects the variable resistor RV 1 and the color selection circuit 5 operated by the selector switch SW and is the relay RY 1 (RY 2 ) (RY 3 ). One end of the output side has a structure in which a second relay circuit 8 is connected.
미설명부호 4는 수평동기신호 분리회로, 6은 영상신호 증폭단, 7은 수상관, 9는 음성신호 출력단, R-Y는 적색차신호, G-Y는 녹색차신호, B-Y는 청색차신호, a1c1-a4c4와 b1c1-b4c4는 릴레이의 접점을 나타낸다.Reference numeral 4 is a horizontal synchronous signal separation circuit, 6 is a video signal amplifier stage, 7 is a water pipe, 9 is an audio signal output terminal, RY is a red difference signal, GY is a green difference signal, BY is a blue difference signal, a 1 c 1 -a 4 c 4 and b 1 c 1 -b 4 c 4 represent the contacts of the relay.
제1도는 상기한 구조로 되어 있는 본 고안의 계통도로서, 칼라 텔레비젼을 정상동작시킬 때에는 영상신호 검파회로(1)에서 검파된 3개의 색차신호(R-Y)(R-Y)(B-Y)가 제1릴레이 회로(2)에 인가되고, 수평동기신호 분리회로(4)를 통하여 출력되는 수평동기신호는 수평동기신호 적분회로(3)에 인가되어 제1, 제2릴레이회로(2)(8)를 비작동상태로 만든다. 따라서 세종류의 색차신호(R-Y)(G-Y)(B-Y)는 영상신호 증폭단(6)을 통해 수상관(7)에 나타나고 음성신호는 음성신호 출력단(9)을 거쳐서 스피커(10)를 구동시키게 된다.FIG. 1 is a system diagram of the present invention having the above-described structure. When the color television is normally operated, three color difference signals RY (RY) (BY) detected by the video signal detection circuit 1 are first relay circuits. The horizontal synchronous signal applied to (2) and output through the horizontal synchronous signal separation circuit 4 is applied to the horizontal synchronous signal integrating circuit 3 to deactivate the first and second relay circuits 2 and 8. Make it state. Therefore, three kinds of color difference signals RY (GY) (BY) appear in the receiving tube 7 through the image signal amplifying stage 6, and the audio signal drives the speaker 10 through the audio signal output terminal 9. .
이와 달리 영상신호가 들어오지 않을 때에는 영상신호 검파회로(1)에서 영상신호가 출력되지 않고, 제1, 제2 릴레이회로(2)(8)의 릴레이가 수평동기신호 적분회로(3)의 동작전원에 의해 구동되므로 색상 선택회로(5)에서 발생되는 색차신호(R-Y)(G-Y)(B-Y)중 사용자에 의해 선택된 색상이 영상신호 증폭단(6)을 통해 수상관(7)에 표시된다. 또한 음성신호는 제2릴레이회로(8)에서 오픈(OPEN)되므로 스피커(10)는 음성출력이 나가지 않는 뮤트(MUTE)상태를 유지하게 된다.On the other hand, when the video signal does not come in, the video signal is not output from the video signal detection circuit 1, and the relays of the first and second relay circuits 2 and 8 are operated by the horizontal synchronization signal integrating circuit 3. Driven by the user, the color selected by the user among the color difference signals RY (GY) BY generated in the color selection circuit 5 is displayed on the water pipe 7 through the video signal amplifying stage 6. In addition, since the voice signal is open in the second relay circuit 8, the speaker 10 maintains a mute state in which the voice output does not go out.
이상과 같은 계통적 신호흐름에 의해서 동작하는 본 고안을 구체적인 회로동작에 입각하여 설명하면 다음과 같다.The present invention operating based on the systematic signal flow as described above will be described based on the specific circuit operation.
제2도는 본 고안의 구체적인 회로도로서, 칼라 텔레비젼이 정상동작을 할때에는 영상신호 검파회로(1)에서 검파된 3개의 색차신호(R-Y)(G-Y)(B-Y)가 제1릴레이 회로(2)에 인가되는데 적색차신호(R-Y)는 릴레이(RY1)의 접점(a1c1)으로, 녹색차신호(G-Y)는 릴레이(RY2)의 접점(a2c2)으로, 청색차신호(B-Y)는 릴레이(RY3)의 접점(a3c3)으로 연결되어 영상신호증폭단(6)에 각 색차신호가 공급되고 이 신호들은 수상관(7)을 통해 표시되어진다.FIG. 2 is a specific circuit diagram of the present invention. In the normal operation of a color television, three color difference signals RY (GY) BY detected by the video signal detection circuit 1 are transmitted to the first relay circuit 2. The red difference signal RY is a contact a 1 c 1 of the relay RY 1 , and the green difference signal GY is a contact a 2 c 2 of the relay RY 2 . BY is connected to the contact a 3 c 3 of the relay RY 3 so that each color difference signal is supplied to the video signal amplifier 6 and these signals are displayed through the water pipe 7.
여기에서 트랜지스터(TR3)의 스위칭에 따라 동작하는 제1, 제2 릴레이 회로(2)(8)는 통상적으로 사용되어지는 절환수관이다.Here, the first and second relay circuits 2 and 8 which operate in accordance with the switching of the transistor TR 3 are switching water pipes that are commonly used.
한편, 음성신호는 제2 릴레이 회로(8)의 릴레이(RY4)의 접점 (a4c4)을 통해 음성신호출력단(9)에 공급되므로 스피커(10)에서는 정상적인 음성신호가 출력된다.On the other hand, since the voice signal is supplied to the voice signal output terminal 9 through the contact a 4 c 4 of the relay RY 4 of the second relay circuit 8, the speaker 10 outputs a normal voice signal.
상기한 동작은 릴레이(RY1) (RY2) (RY3) (RY4)가 동작치않는 접점의 접속상태에서 이루어진다. 즉, 수평동기신호 적분회로(3)에 있는 트랜지스터(TR1)의 베이스에 수평동기 신호가 인가되면 이로 인하여 트랜지스터(TR1)가 턴 온(TURN ON)되고, 위상의 반전된 수평동기신호의 각 펄스는 콘덴서(C2)와 저항(R2)에 의해서 적분된다.The above operation is performed in the connection state of the contact point where the relay RY 1 (RY 2 ) (RY 3 ) (RY 4 ) is not operated. That is, when the horizontal synchronizing signal is applied to the base of the transistor TR 1 in the horizontal synchronizing signal integrating circuit 3, the transistor TR 1 is turned on and the phase inverted phase of the horizontal synchronizing signal Each pulse is integrated by a capacitor C 2 and a resistor R 2 .
적분된 신호는 트랜지스터(TR2)의 베이스에 공급되어 트랜지스터(TR2)를 턴-온(TURN ON)상태로 만드므로 동작전압(VDD)은 접지된다. 따라서 동작전압(VDD)는 다이오드(D3)쪽으로 인가되지 않고 트랜지스터(TR3)는 턴-오프(TURN OFF)상태가 되어 릴레이(RY1) (RY2) (RY3) (RY4)에는 동작전압이 인가되지 않게 되므로 접점(a1c1)(a2c2(a3)(c3)(a4)(c4)의 접속상태가 유지되는 것이다.It is therefore to create in the on (TURN ON) state operating voltage (VDD) is a ground - the integrated signal is supplied to the base of the transistor is (TR 2) the transistor (TR 2) turn. Therefore, the operating voltage VDD is not applied to the diode D 3 , and the transistor TR 3 is turned off. The relay RY 1 (RY 2 ) (RY 3 ) (RY 4 ) Since the operating voltage is not applied, the connection state of the contacts a 1 c 1 (a 2 c 2 (a 3 ) (c 3 ) (a 4 ) (c 4 ) is maintained.
다음으로 영상신호가 임력되지 않을 때에는 트랜지스터(TR1)(TR2)가 턴-오프(TURN OFF)되고 동작 전압(VDD)는 다이오드(D3)와 저항(R4)(R5)에 인가된다. 여기에서 다이오드(D3)로 부터의 전압은 저항(R6)을 통해 트랜지스터(TR3)의 베이스에 인가되어 트랜지스터(TR3)를 턴-온(TURN-ON)상태로 만드므로 릴레이(RY1) (RY2) (RY3) (RY4)에 접지점이 제공된다.Next, when the image signal is not energized, the transistors TR 1 and TR 2 are turned off and the operating voltage VDD is applied to the diode D 3 and the resistor R 4 and R 5 . do. Here, the voltage from the diode D 3 is applied to the base of the transistor TR 3 through the resistor R 6 to bring the transistor TR 3 to the TURN-ON state, so that the relay RY 1 ) A ground point is provided at (RY 2 ) (RY 3 ) (RY 4 ).
따라서 릴레이(RY1) (RY2) (RY3) (RY4)가 동작전압(VDD)에 의해 작동되어 접점접속은 접점(a1c1) (a2c2) (a3c3) (a4c4)상태에서 접점(b1c1) (b2c2) (b3c3) (b4c4)상태로 변경되기 때문에 영상신호 검파회로(1)의 출력선이 차단되고 대신 색상 선택회로(5)가 영상신호 증폭단(6)에 접속된다. 등시에 제2릴레이 회로(8)의 접점변경에 의해 음성신호가 영입되지 못하므로 스피커(10)에는 아무런 잡음도 발생하지 않게 된다.Therefore, the relay (RY 1 ) (RY 2 ) (RY 3 ) (RY 4 ) is operated by the operating voltage (VDD) so that the contact connection is a contact (a 1 c 1 ) (a 2 c 2 ) (a 3 c 3 ) In the state (a 4 c 4 ), the output line of the video signal detection circuit (1) is cut off because the state changes to the contact (b 1 c 1 ) (b 2 c 2 ) (b 3 c 3 ) (b 4 c 4 ) state. Instead, the color selection circuit 5 is connected to the video signal amplifying stage 6. Since the voice signal is not received by the contact change of the second relay circuit 8 at isochronous, no noise is generated in the speaker 10.
또한, 칼라 텔레비젼 자체에서 발생하는 내부 동기신호(INT SYNC)는 색상 선택회로(5)의 트랜지스터(TR4)의 베이스에 인가되고, 동작전압(VDD)이 저항(R11) (R12) (R13)을 통해 인가되어 트랜지스터(TR4)가 턴 온(TURN ON)되므로 트랜지스터(TR4)에 의해 반전된 신호는 직류차단용 콘덴서(C3)를 통해 저항(R15) (R16)에 공급된다.Further, the internal synchronizing signal INT SYNC generated by the color television itself is applied to the base of the transistor TR 4 of the color selection circuit 5, and the operating voltage VDD is applied to the resistors R 11 (R 12 ) ( Since the transistor TR 4 is applied through R 13 to turn ON, the signal inverted by the transistor TR 4 is resistance R 15 (R 16 ) through the DC blocking capacitor C 3 . Supplied to.
저항(R15) (R16)전단의 가변저항(RV1)은 반전된 내부동기신호(INT SYNC)의 레벨을 조정하기 위하여 설치되고, 접속점(A)은 저항(R15) (R16)에서 결정된 내부동기신호(INT SYNC)의 레벨중에서 저장된 색을 강조하기 위한 선택스위치(SW)의 접점에 연결되며 접속점(B)은 내부동기신호(INT SYNC)의 레벨을 줄이는 접점으로 연결된다.Resistance (R 15) (R 16) of the front end a variable resistor (RV 1) is provided to adjust the level of the inverted internal synchronization signal (INT SYNC), the connection point (A) is a resistor (R 15) (R 16) The level of the internal synchronization signal INT SYNC determined at is connected to the contact of the selection switch SW for emphasizing the stored color, and the connection point B is connected to the contact reducing the level of the internal synchronization signal INT SYNC.
사용자의 임의적인 선택에 따라 레벨이 조정된 접속점(A) (B)으로부터 내부동기신호(INT SYNC)는 해당되는 릴레이(RY1) (RY2) (RY3)에 접속된다. 따라서 색상 선택회로(5)에서 출력되는 내부동기신호(INT SYNC)는 영상신호 증폭단(6)에 가해지게되므로 수상관(7)에는 선택된 색상이 대치화면이 표시되는 것이다.The internal synchronization signal INT SYNC is connected to the corresponding relay RY 1 (RY 2 ) (RY 3 ) from the connection point A (B) whose level is adjusted according to the user's arbitrary selection. Therefore, the internal synchronization signal INT SYNC output from the color selection circuit 5 is applied to the video signal amplifying stage 6, so that the selected color is replaced on the water pipe 7.
상기한 바와같이 본 고안은 칼라텔레비젼에 있어서 영상신호가 입력되지 않을 때에 음성잡음신호와 화면에 나타나는 영상잡음을 없애고 사용자가 원하는 색상의 화면으로 대치할 수 있는 효과가 있는 것이다.As described above, the present invention has the effect of eliminating the voice noise signal and the video noise appearing on the screen when the video signal is not input in the color television, and replacing the screen with the desired color.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019830005317U KR850000161Y1 (en) | 1983-06-17 | 1983-06-17 | Picture change circuit in television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019830005317U KR850000161Y1 (en) | 1983-06-17 | 1983-06-17 | Picture change circuit in television |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR850000161Y1 true KR850000161Y1 (en) | 1985-02-13 |
| KR850000905U KR850000905U (en) | 1985-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019830005317U KR850000161Y1 (en) | 1983-06-17 | 1983-06-17 | Picture change circuit in television |
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| Country | Link |
|---|---|
| KR (1) | KR850000161Y1 (en) |
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1983
- 1983-06-17 KR KR2019830005317U patent/KR850000161Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR850000905U (en) | 1985-03-30 |
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