KR860000728Y1 - Video receiver in multimode - Google Patents
Video receiver in multimode Download PDFInfo
- Publication number
- KR860000728Y1 KR860000728Y1 KR2019840004747U KR840004747U KR860000728Y1 KR 860000728 Y1 KR860000728 Y1 KR 860000728Y1 KR 2019840004747 U KR2019840004747 U KR 2019840004747U KR 840004747 U KR840004747 U KR 840004747U KR 860000728 Y1 KR860000728 Y1 KR 860000728Y1
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- circuit
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- signal
- switch
- ntsc
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
- H04N11/20—Conversion of the manner in which the individual colour picture signal components are combined, e.g. conversion of colour television standards
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/036—Radio; TV
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Television Systems (AREA)
Abstract
내용 없음.No content.
Description
본 고안의 회로도.Circuit diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 버퍼 10 : NTSC회로(NTSC 방식의 텔레비젼 회로)1: Buffer 10: NTSC circuit (NTSC television circuit)
20 : PAL회로 30 : SECAM회로20: PAL circuit 30: SECAM circuit
40 : 색부반송파선택스위치 50 : 비데오스위치40: color carrier selection switch 50: video switch
본 고안은 다방식 영상수신 텔레비젼 회로에 관한 것이다.The present invention relates to a multimodal video receiving television circuit.
텔레비젼 방송에는 미주지역에서 개발한 NTSC(National Television System)방식과 독일의 PAL(Phase Alte rnation by Line Color T.V System)방식 및 프랑스의 SECAM(Sequential a Memoire) 방식 등 여러가지 전송 방식들이 있어 일반적인 텔레비젼은 서로 다른 방식에 대하여는 방송 신호를 수신할 수가 없어 각기 다른 방식을 사용하는 각 나라의 텔레비젼은 서로 호환성을 가지지 못하는 것이었다.There are various transmission methods such as NTSC (National Television System) developed in the Americas, PAL (Phase Altenation by Line Color TV System), and Sequential a Memoire (SECAM) in France. For the other system, it was not possible to receive broadcast signals, so the TVs of different countries using different methods were not compatible with each other.
본 고안은 이와 같은 점을 감안하여 여러가지 방식에 따른 텔레비젼 방송신호에 무관하게 수신할 수 있는 텔레비젼을 제공하고자 하는 것으로 특히 다른 방식에 따른 각기 다른 비데오 신호를 모두 수신한 복합 영상 신호에서 시스템을 절환시켜 원하는 영상신호를 선택할 수 있게하기 위하여 영상 중간 주파수가 인가되는 버퍼에서 NTSC회로, PAL회로, SECAM회로들을 병렬로 연결하여 각 방식의 텔레비젼 방송신호가 색부반 송파 선택스위치회로와 비데오 스위치회로에 인가되도록 구성하고 제어신호 발생부에서 TV방식의 선택전압을 공급하도록 구성한 것이다. 이를 첨부 도면에 의하여 텔레비젼 회로의 영상신호가 전송되는 것을 상술하면 다음과 같다.The present invention is to provide a television that can be received irrespective of the television broadcast signal according to various methods, in particular, by switching the system from a composite video signal that receives all the different video signals according to different methods In order to select the desired video signal, NTSC, PAL and SECAM circuits are connected in parallel in a buffer to which the video intermediate frequency is applied so that the television broadcast signal of each system is applied to the color carrier carrier selection switch circuit and the video switch circuit. It is configured to supply the selection voltage of the TV method in the control signal generator. The transmission of the video signal of the television circuit according to the accompanying drawings in detail as follows.
본 고안은 영상 중간 주파수(VIF)가 인가되는 버퍼(1)에 NTSC회로(10), PAL회로(20), SECAM회로(30)를 병렬로 연결 구성하여 각 방송의 텔레비젼 방송신호가 색부반송파 선택스위치(40)회로와 비데오스위치(50)회로에 인가되도록 구성한 것으로 NTSC회로(10)에서는 4.45MHZ트랩회로(11)를 통하여 음성신호를 제거시킨후 3.58MHZ필터회로(12)로 색부반송파 신호를 통과시키고 3.58MHZ트랩회로(13)에서 비데오신호가 출력되게 구성되며, PAL회로(20)에서는 5.5MHZ트랩회로(21)통하여 음성신호를 제거시킨후 4.43MHZ필터회로(22)로 색부반송파 신호를 통과시키고, 4.43MHZ트랩회로에서 비데오 신호가 출력되게 구성하고 SECAM회로(30)에서는 필터회로(32)를 통하여 색부반송파 선택 스위치(40)회로와 비데오 스위치(50)회로에 공급되도록 구성하고 TV방식 선택단자(2)(3)(4)에 인가되는 선택 신호전압이 다이오드(D1)(D2)(D3)를 통하여 서로 대칭적으로 구성한 트랜지스터(Q1)(Q2)(Q3)(Q4)(Q5)(Q6)가 구동하도록 제어신호 발생부(60)를 구성시킨 것이다.The present invention is configured to connect NTSC circuit 10, PAL circuit 20, SECAM circuit 30 in parallel to the buffer 1 to which the video intermediate frequency (VIF) is applied, so that the TV broadcast signal of each broadcast is selected as the color carrier. It is configured to be applied to the switch 40 circuit and the video switch 50 circuit. In the NTSC circuit 10, the audio signal is removed through the 4.45 MHZ trap circuit 11, and the color carrier signal is transmitted to the 3.58 MHZ filter circuit 12. The video signal is output from the 3.58 MHZ trap circuit 13, and the PAL circuit 20 removes the audio signal through the 5.5 MHZ trap circuit 21, and then transmits the color carrier signal to the 4.43 MHZ filter circuit 22. Pass the video signal from the 4.43MHZ trap circuit, and the SECAM circuit 30 is configured to be supplied to the color carrier selection switch 40 circuit and the video switch 50 circuit through the filter circuit 32 and the TV system. Selection signal applied to selection terminals (2) (3) (4) Pressure, the diode (D 1) (D 2) (D 3) symmetrically configured transistor (Q 1) to each other via a (Q 2) (Q 3) (Q 4) (Q 5) (Q 6) is to drive The control signal generator 60 is configured.
이와 같이 구성된 본 고안의 작용 효과를 설명하면 다음과 같다.Referring to the effects of the present invention configured as described above are as follows.
본 고안은 각기 다른 방식의 텔레비젼 영상회로를 병렬로 구성하여 각기 상이한 텔레비젼 방송신호를 모두 수신할 수 있게한 것으로 영상중간 주파수(VIF)가 버퍼(1)를 통하여 NTSC회로(10), PAL회로(20), SECAM회로(30)에 인가되게 된다.According to the present invention, the TV video circuits of different systems are configured in parallel to receive all different TV broadcast signals. The video intermediate frequency (VIF) is transmitted through the buffer 1 to the NTSC circuit 10 and the PAL circuit. 20) is applied to the SECAM circuit 30.
여기서 NTSC회로(10)는 NTSC방식의 방송신호를 수신할 수 있게 되는 것으로 4.45MHZ트랩회로(11)에서 음성신호를 제거시키고 음성신호가 제거된 영상신호중의 3.58MHZ의 필터회로(12)에서 색부반송파를 통과시켜 색부반송파 선택스위치(40)에 인가시키며 3.58MHZ트랩회로(13)에서 색부 반송파신호를 제거한 비데오 신호를 비데오 스위치(50)회로에 공급하게 된다.In this case, the NTSC circuit 10 is capable of receiving an NTSC broadcast signal and removes the audio signal from the 4.45MHZ trap circuit 11 and the color of the filter circuit 12 of 3.58MHZ of the video signal from which the audio signal is removed. The subcarrier passes through the subcarrier and is applied to the color carrier selector switch 40, and the video signal from which the color carrier signal is removed from the 3.58 MHz trap circuit 13 is supplied to the video switch circuit.
PAL회로(20)에서는 5.5MHZ트랩회로(21)에서 음성신호를 제거시킨후 4.43MHZ필터회로(22)에서 색부반송파를 통과시켜 색부반송파 선택스위치(40)회로에 인가시키며 4.43MHZ트랩회로(23)에서 색부 반송파신호를 제거한 비데오 신호를 비데오 스위치(50)회로에 공급하게 되고 SECAM회로(30)에서는 영상신호가 필터회로(32)를 통하여 색부반송파 선택 스위치(40)회로에 공급하게 되는 것으로 색부반송파 선택 스위치(40)회로와 비데오 스위치(50)회로에는 각 방식에 따른 텔레비젼 영상신호가 인가하게 된다. 이때 사용자는 도시되어 있지 아니한 각 방식의 선택 보턴을 누르면(NTSC 선택시) 단자(2)로 전원이 인가되어 다이오드(D1)를 통하여 서로 대칭적으로 구성된 트랜지스터(Q1)(Q4)의 베이스에 인가되어 트랜지스터(Q1)(Q4)가 도통되면 전원(Vcc)이 공급되어 색부반송파 선택스위치(40) 및 비데오 스위치(50)의 NTSC방식의 방송신호만을 선택한 후 출력시키므로 원하는 방송방식에 따라 텔레비젼을 수상할 수 있는 효과가 있는 것으로 제어신호 발생부(60)의 다이오드를 통하여 각각의 트랜지스터를 대칭적으로 구성함으로써 하나의 제어 신호로서 색부반송파 선택 스위치(40) 및 비데오 스위치(50)를 동시에 제어할 수가 있는 것이다.The PAL circuit 20 removes the audio signal from the 5.5 MHZ trap circuit 21, passes through the color carrier from the 4.43 MHZ filter circuit 22, and applies it to the color carrier selection switch 40 circuit, and 4.43 MHZ trap circuit 23 The video signal from which the color carrier signal is removed is supplied to the video switch 50 circuit, and the video signal is supplied to the color carrier selection switch 40 circuit through the filter circuit 32 in the SECAM circuit 30. The television video signal according to each system is applied to the subcarrier selection switch 40 circuit and the video switch 50 circuit. At this time, when the user presses a selection button of each method not shown (when NTSC is selected), the power is supplied to the terminal 2 so that the transistors Q 1 and Q 4 symmetrically configured with each other through the diode D 1 are provided. When the transistors Q 1 and Q 4 are applied to the base and the power supply Vcc is supplied, only the NTSC broadcast signals of the color carrier selection switch 40 and the video switch 50 are selected and outputted. The color carrier selection switch 40 and the video switch 50 serve as one control signal by symmetrically configuring each transistor through the diode of the control signal generator 60. Can be controlled at the same time.
이상에서와 같이 본 고안은 각 방식에 따른 텔레비젼의 영상신호를 모두 수신하여 제어신호에 의하여 스위칭시켜 원하는 방식의 시스템으로 전환시킬 수가 있는 것으로 각 방송방식에 따라 서로 호환성이 텔레비젼회로를 제공할 수 있는 다방식 영상 수신 텔레비젼회로를 제공할 수가 있는 것이다.As described above, the present invention can receive a video signal of a television according to each system, switch it by a control signal, and convert it into a system of a desired system, which can provide a television circuit compatible with each broadcasting system. It is possible to provide a multi-mode video receiving television circuit.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019840004747U KR860000728Y1 (en) | 1984-05-23 | 1984-05-23 | Video receiver in multimode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019840004747U KR860000728Y1 (en) | 1984-05-23 | 1984-05-23 | Video receiver in multimode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR850010563U KR850010563U (en) | 1985-12-30 |
| KR860000728Y1 true KR860000728Y1 (en) | 1986-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019840004747U KR860000728Y1 (en) | 1984-05-23 | 1984-05-23 | Video receiver in multimode |
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| Country | Link |
|---|---|
| KR (1) | KR860000728Y1 (en) |
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1984
- 1984-05-23 KR KR2019840004747U patent/KR860000728Y1/en active Pre-grant Review Request
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| Publication number | Publication date |
|---|---|
| KR850010563U (en) | 1985-12-30 |
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