KR910001517B1 - Multi-audio signal choosing circuit for television - Google Patents

Multi-audio signal choosing circuit for television Download PDF

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Publication number
KR910001517B1
KR910001517B1 KR1019870015360A KR870015360A KR910001517B1 KR 910001517 B1 KR910001517 B1 KR 910001517B1 KR 1019870015360 A KR1019870015360 A KR 1019870015360A KR 870015360 A KR870015360 A KR 870015360A KR 910001517 B1 KR910001517 B1 KR 910001517B1
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South Korea
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signal
gate
sap
terminal
switches
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KR1019870015360A
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Korean (ko)
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KR890011418A (en
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김남호
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주식회사 금성사
최근선
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages

Abstract

The apparatus processes stero signal, SAP signal and remote control signal utilizing AND gate so to control select switch so that mono signal right, left sound signal and SAP signal are transmitted to right and left output selectively and signals not selected are not transmitted switches (SW1-SW3) are controlled by logic combination of ST SAP RM signal and MO, LS, RL and SAP signals are selected by the switches to prevent to receive unnecessary signal.

Description

TV 수상기용 음성다중 신호 선택 장치Voice Multiple Signal Selector for TV Receiver

제1도는 본 발명 장치의 회로도.1 is a circuit diagram of an apparatus of the present invention.

제2도는 종래 신호 선택 장치의 구성도.2 is a block diagram of a conventional signal selection device.

본 발명은 원격제어 TV 수상기용 음성 다중 신호 선택 장치에 관한 것으로서 특히 4개의 AND 게이트와 다이오드 및 트랜지스터 그리고 아날로그 스위치를 설치하여 방송되지 않는 신호는 선택되지 않도록 한 음성다중 신호 선택 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice multiple signal selection device for a remote control TV receiver, and more particularly, to a voice multiple signal selection device in which four AND gates, diodes, transistors, and analog switches are installed so that signals that are not broadcast are not selected.

종래의 음성다중 TV 수상기에서 음성다중 신호 선택 장치는 현재 방송되지 않는 신호도 선택하게 되어있어 예를들어 현재 2개 국어 방송인데도 스테레오 방송을 선택하게 되면 그대로 스테레오 방송이 되어 사용자 혼란을 일으키게 되고 다시 제조작하여 2개 국어 방송을 선택하게 되는 단점이 있다. 일예로서 제2도와 같은 종래의 장치는 음성다중 신호를 선택할때에 원격제어 회로(31)가 펄스발생 회로(32)에서 펄스를 하나씩 발생시켜 플립플롭(33)으로서 음성다중 신호 선택용 스위치(34)을 제어하도록 되어 있어 방송되지 않는 신호는 스위치(34)로서 선택되도록 하여 불필요한 잡음이 발생되고 선택하는데 시간이 걸리는 문제점이 있다. 즉 순차적으로 방송을 선택하므로써 방송되지 않는 상태가 선택되면 클럭펄스를 한번 더 플립플롭(33)에 입력시키도록 원격제어 회로(31)를 가동시켜야 하는 단점이 있다.In the conventional multiplex TV receiver, the multiplex signal selection device selects a signal that is not currently broadcasted. For example, even if the current two-language broadcast is selected, if the stereo broadcast is selected, the stereo broadcast is intact, causing user confusion. There is a disadvantage in that bilingual broadcasting is selected by operating. For example, in the conventional apparatus as shown in FIG. 2, when the voice multiple signal is selected, the remote control circuit 31 generates pulses one by one in the pulse generator circuit 32 so that the flip-flop 33 switches 34 for voice multiple signal selection. The non-broadcast signal is selected as the switch 34 so that unnecessary noise is generated and it takes time to select. In other words, if the non-broadcast state is selected by sequentially selecting the broadcasts, the remote control circuit 31 must be operated to input the clock pulses to the flip-flop 33 once more.

본 발명은 이러한 종래의 단점을 해결하기 위하여 스테레오 신호 샙(SAP)신호 및 원격제어신호를 AND게이트로 처리하여 다이오드와 트랜지스터로서 선택스위치를 제어하므로서 모노 신호와 좌, 우 음성 신호 및 샙(SAP)신호를 선택적으로 좌우 출력에 전달하도록 하되 방송되지 않는 신호는 좌우 출력에 전달되지 않도록 하여 방송되지 않는 신호를 선택하여 잡음이 발생되는 것을 방지하며 선택조작이 편리한 TV 수상기용 음성다중 신호 선택 장치를 제공하는 것을 목적으로 하며, 이하 첨부된 도면을 참조하여 설명하면 다음과 같다. 제1도를 참조하면 본 발명 장치는 스테레오 신호(ST)를 AND 게이트(G1, G3)의 일측입력에 연결함과 동시에 에미터 접지 트랜지스터(Q1)의 콜렉터에 연결하고, 샙 신호(SAP)는 AND 게이트(G2)의 일측입력과 AND 게이트(G3)의 타측단자에 연결하며, 원격제어 신호(RM)는 AND 게이트(G1, G2, G4)의 일측단자에 연결하고, AND 게이트(G1, G2)의 출력은 다이오드(D1, D2)를 통하여 아날로그 스위치(SW1)의 제어단자(X1)에 연결함과 동시에 AND 게이트(G3)의 출력단자는 AND 게이트(G4)의 타측입력과 트랜지스터(Q1)의 베이스에 연결하되 다이오드(D3)를 통하여 아날로그 스위치(SW1)의 제어단자(X1)에 연결하며, 트랜지스터(Q1)의 콜렉터는 다이오드(D4)를 통하여 그리고 AND 게이트(G4)의 출력은 다이오드(D5)를 통하여 스위치(SW2, SW3)의 제어단자(X2, X3)에 연결하고, 스위치(SW1)의 고정단자(a1, b2)은 각각 모노신호(MO)와 샙신호(SAP)에 연결하되 가동단자(C1)는 스위치(SW2, SW3)의 고정단자(b2, b3)에 연결하며, 스위치(SW2, SW3)의 고정단자(b2, b3)는 각각 좌, 우 음성신호(LS, RS)에 연결함과 동시에 가동단자(C2, C3)는 각각 좌,우 출력(L, R)에 연결하여된 구성으로서 여기에서, 미설명부호 R1은 트랜지스터(Q1)의 콜렉터 저항, R2은 트랜지스터(Q1)의 베이스 저항이다.In order to solve the above disadvantages, the present invention processes a stereo signal (SAP) signal and a remote control signal with an AND gate to control a select switch as a diode and a transistor, thereby controlling a mono signal and a left and right voice signal and a (SAP) signal. Selectively transmits signals to left and right outputs, but not broadcast signals to left and right outputs, thereby preventing noise from being generated by selecting unbroadcasted signals and providing a convenient multiplex audio signal selection device for TV receivers. It is intended to be described below with reference to the accompanying drawings as follows. Referring to FIG. 1, the apparatus of the present invention connects the stereo signal ST to one input of the AND gates G 1 and G 3 , and at the same time to the collector of the emitter ground transistor Q 1 , and the 샙 signal ( SAP) are connected to one terminal of the connection to the other terminal of the aND gate (G 2) one input and the aND gate (G 3) of, and a remote control signal (RM) is an aND gate (G 1, G 2, G 4) The outputs of the AND gates G 1 and G 2 are connected to the control terminal X 1 of the analog switch SW 1 through the diodes D 1 and D 2 , and at the same time, the output terminals of the AND gate G 3 . The ruler is connected to the other input of the AND gate (G 4 ) and the base of the transistor (Q 1 ), but is connected to the control terminal (X 1 ) of the analog switch (SW 1 ) through the diode (D 3 ), and the transistor (Q 1 ) the collector is open to the diode control terminals (X 2, X 3) of the through (D 4) and the output of the aND gate (G 4) is a switch (SW 2, SW 3) via a diode (D 5) The fixed terminals a 1 and b 2 of the switch SW 1 are connected to the mono signal MO and the S signal SAP, respectively, while the movable terminal C 1 is connected to the switches SW 2 and SW 3 . and connected to the fixed terminal (b 2, b 3), the switch (SW 2, SW 3) fixed terminal (b 2, b 3) are respectively left and right audio signal at the same time, the movable terminal and also connected to the (LS, RS) of (C 2, C 3) are respectively left and right output herein as (L, R) configuration and connected to, reference numeral R 1 is the collector resistance of the transistor (Q 1), R 2 is a transistor (Q 1) Is the bass resistance.

이러한 본 발명 장치의 작용 효과는, 모노 방송일때에는 원격제어신호(RE)가 입력되도 모노만 수신되고 스테레오 방송일때는 원격제어신호(RE)가 입력되도 스테레오 신호(ST)만 수신 가능하며 샙(SAP) 방송일때는 모노 신호(주신호)와 샙신호(부신호) 선택이 원격제어로 가능하며 스테레오, 샙방송일 경우 스테레오신호(ST)와 샙신호(SAP) 절환이 원격제어 가능한 것이다.The effect of the device of the present invention is that when the monaural broadcast, only the mono signal is received even if the remote control signal (RE) is input, and in the stereo broadcast, only the stereo signal (ST) can be received even if the remote control signal (RE) is input. When broadcasting, mono signal (main signal) and 샙 signal (sub-signal) can be selected by remote control. In case of stereo and, broadcasting, switching between stereo signal (ST) and 샙 signal (SAP) is possible.

실제 회로 동작을 보면, 모노 방송일 경우 스테레오 신호(ST)에서 전위가 출력되므로 저항(R1), 다이오드(D4)를 통해 스위치(SW2, SW3) 제어단자(X2, X3)에 저전위가 인가되므로 스위치(SW2와 SW3)의 고정단자(a2, a3)와 가동단자(C2, C3)간이 단락되고 AND 게이트(G1)의 출력도 AND 게이트(G3)의 출력도 저전위가 되어 스위치(SW1)의 고정단자(a1)와 가동단자(c1)간이 단락된다. AND 게이트(G1)의 스테레오 신호(ST) 입력이 저전위인 상태에서 원격제어 신호(RM)를 고, 전위를 입력 한다해도 출력은 변하지 않는다.In the actual circuit operation, since the potential is output from the stereo signal ST in the case of mono broadcasting, the control terminals X 2 and X 3 are connected to the switches SW 2 and SW 3 through the resistor R 1 and the diode D 4 . Since the low potential is applied, the fixed terminals a 2 and a 3 and the movable terminals C 2 and C 3 of the switches SW 2 and SW 3 are short-circuited and the output of the AND gate G 1 is also AND gate G 3. ) Output also becomes low potential, and the fixed terminal a 1 and the movable terminal c 1 of the switch SW 1 are short-circuited. The output does not change even when the remote control signal RM is turned on and the potential is input while the stereo signal ST of the AND gate G 1 has a low potential.

스테레오 방송인 경우는 스테레오 신호(ST)가 고전위이므로 저항(R1), 다이오드(D4)를 통해 스위치(SW2, SW3), 제어단자(X2, X3)가 고전위가 되어 고정접점(b2, b3)과 가동접점(C2, C3)간이 단락되고 AND 게이트(G1)의 출력은 원격제어신호(RM)가 고전위일때는 고전위가 되고 저전위일때는 저전위가 되어 즉 스테레오가 수신되는 것이다.In the case of stereo broadcasting, since the stereo signal (ST) is high potential, the switch (SW 2 , SW 3 ) and the control terminals (X 2 , X 3 ) become high potential through the resistor (R 1 ) and the diode (D 4 ). The contact (b 2 , b 3 ) and the movable contact (C 2 , C 3 ) are short-circuited and the output of the AND gate (G 1 ) becomes high when the remote control signal (RM) is at high potential and low when at low potential. Potential, that is, stereo is received.

만일 샙신호(SAP)가 입력될때는 AND 게이트(G1)의 출력은 저전위되고 AND 게이트(G2)의 샙신호(SAP)입력은 고전위가 되므로 원격제어펄스의 고, 저전위에 따라 스위치(SW1)의 제어 전압이 고, 저전위가 순차 변하고 샙신호(SAP)만 입력될때는 스테레오신호(ST)가 저전위이므로 모노 상태와 동일하게 스위치(SW1, SW3)는 고정단자(a2, a3)와 가동단자(C2, C3)간이 단락되게 된다. 따라서, 원격제어 펄스에 따라 스위치(SW1)의 가동단자(C1)가 고정단자(a1또는 b1)에 단락되므로 모노 신호와 샙(SAP)신호를 원격제어로 선택 가능한 것이다.When the Z signal SAP is input, the output of the AND gate G 1 becomes low potential and the Z signal SAP input of the AND gate G 2 becomes high potential so that the switch is switched according to the high and low potential of the remote control pulse. When the control voltage of (SW 1 ) is high and the low potential is sequentially changed and only the 샙 signal (SAP) is input, the stereo signal (ST) is low potential, so that the switches (SW 1 , SW 3 ) are fixed terminals ( a 2 , a 3 ) and the movable terminals C 2 , C 3 are short-circuited. Therefore, since the movable terminal C 1 of the switch SW 1 is shorted to the fixed terminal a 1 or b 1 according to the remote control pulse, the mono signal and the SAP signal can be selected by remote control.

만일 스테레오와 샙방송이 동시에 있을 경우 원격제어신호(RE)가 고전위일 경우 스위치(SW3, SW2)는 고정단자(b2, b3)와 가동단자(C2, C3)간이 단락되고 스위치(SW1)는 어느쪽으로 단락 되어도 상관없다.If the stereo and radio broadcasts are simultaneously, if the remote control signal RE is at high potential, the switches SW 3 and SW 2 are short-circuited between the fixed terminals b 2 and b 3 and the movable terminals C 2 and C 3 . The switch SW 1 may be shorted to either side.

원격제어신호(RM)가 저전위일 경우 스위치(SW1)는 고정단자(b1)와 가동단자(C1)간이 단락되고 AND 게이트(G3)의 출력은 저항(R2)를 통해 트랜지스터(Q1)을 온시키므로 스테레오 신호(ST)의 고전위는 저항(R1)을 통해 접지되어 다이오드(D4)의 애노우드는 저전위가 되고 다이오드(D5)의 애노우드 전압이 고전위, 저전위에 따라 제어가 가능한 것이다. 상기 내용을 도표로 나타내면,When the remote control signal RM is at low potential, the switch SW 1 is short-circuited between the fixed terminal b 1 and the movable terminal C 1 , and the output of the AND gate G 3 is transmitted through a resistor R 2 . Since (Q 1 ) is turned on, the high potential of the stereo signal ST is grounded through the resistor R 1 so that the anode of diode D 4 becomes low potential and the anode voltage of diode D 5 becomes high potential. In other words, it can be controlled according to the low potential. If you plot the above,

Figure kpo00001
Figure kpo00001

Figure kpo00002
Figure kpo00002

ac : 고정단자(a)와 가동단자(c)의 단락 상태ac: short-circuit state between fixed terminal (a) and movable terminal (c)

bc : 고정단자(b)와 가동단자(c)의 단락상태bc: Short state of fixed terminal (b) and movable terminal (c)

원격제어신호는 하이, 로우가 순차 반복되는 마이콤 출력 신호이다.The remote control signal is a micom output signal in which high and low are repeated sequentially.

이상에서 설명된 바와같이 본 발명에 의하면 모노방송인 경우에는 모노만 수신되고, 스테레오 방송인 경우는 스테레오 신호만 수신되며, 샙(SAP) 방송인 경우에는 모노 방송과 샙방송 수신이 원격제어되고 스테레오의 샙방송을 동시에 하는 경우 스테레오와 샙신호를 원격제어 선택할 수 있으므로 방송되지 않는 상태는 자동으로 스위치 절환이 되지 않아 불필요한 잡음을 수신하지 않고 선택 조작이 간편하게 된다.As described above, according to the present invention, in case of mono broadcasting, only mono is received, in case of stereo broadcasting, only stereo signals are received. In case of SAP (SAP) broadcasting, mono broadcasting and broadcasting reception are controlled remotely and stereo broadcasting is performed. At the same time, the stereo and 샙 signals can be selected for remote control, so the unbroadcasted state is not automatically switched so that the selection operation is simplified without receiving unnecessary noise.

Claims (1)

스테레오 신호(ST)를 AND 게이트(G1, G3)의 일측 입력에 연결함과 동시에 에미터 접지 트랜지스터(Q1)의 콜렉터에 연결하고, 샙신호(SAP)는 AND 게이트(G2)의 일측입력과 AND 게이트(G3)의 타측 단자에 연결하며, 원격제어 신호(RM)은 AND 게이트(G1, G2, G4)의 일측단자에 연결하고, AND 게이트(G1, G2)의 출력은 다이오드(D1, D2)를 통하여 아날로그 스위치(SW1)와 제어단자(X1)에 연결함과 동시에 AND 게이트(G3)의 출력단자는 AND 게이트(G4)의 타측 입력과 트랜지스터(Q1)의 베이스에 연결하되 다이오드(D3)를 통하여 아날로그 스위치(SW1)의 제어단자(X1)에 연결하며, 트랜지스터(Q1)의 콜렉터는 다이오드(D4)를 통하여 그리고 AND 게이트(G4)의 출력도 다이오드(D5)를 통하여 스위치(SW2, SW3)의 제어단자(X2, X3)에 연결하고, 스위치(SW1)의 고정단자(a1, b1)은 각각 모노 신호(MO)와 샙신호(SAP)에 연결하되 가동단자(C1)는 스위치(SW1, SW3)의 고정단자(a2, a3)에 연결하며, 스위치(SW2, SW3)의 고정단자(b2, b3)는 각각 좌, 우 음성신호(LS, RS)에 연결함과 동시에 가동단자(C2, C3)는 각각 좌, 우 출력(L, R)에 연결하여된 TV수상기용 음성다중 신호 선택 장치.The stereo signal ST is connected to one input of the AND gates G 1 and G 3 , and at the same time to the collector of the emitter ground transistor Q 1 , and the S signal SAP is connected to the AND gate G 2 . One input and the other terminal of the AND gate (G 3 ), and the remote control signal (RM) is connected to one terminal of the AND gate (G 1 , G 2 , G 4 ), AND gate (G 1 , G 2) ) output diode (D 1, D 2) for through analog switches (SW 1) and the other input of the output stage the aND gate (G 4) of the connection, and at the same time the aND gate (G 3) to a control terminal (X 1) of And the base of transistor Q 1 , but are connected to control terminal X 1 of analog switch SW 1 through diode D 3 , and the collector of transistor Q 1 is connected to diode D 4 . The output of the AND gate G 4 is also connected to the control terminals X 2 and X 3 of the switches SW 2 and SW 3 through the diode D 5 and the fixed terminal of the switch SW 1 . (a 1 , b 1 ) are connected to the mono signal (MO) and 샙 signal (SAP), respectively, and the movable terminal (C 1 ) is connected to the fixed terminals (a 2 , a 3 ) of the switches (SW 1 , SW 3 ). The fixed terminals b 2 and b 3 of the switches SW 2 and SW 3 are connected to the left and right voice signals LS and RS, respectively, while the movable terminals C 2 and C 3 are respectively connected to the left and right voice signals LS and RS. Audio multiple signal selection device for a TV receiver connected to the right output (L, R).
KR1019870015360A 1987-12-30 1987-12-30 Multi-audio signal choosing circuit for television KR910001517B1 (en)

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Application Number Priority Date Filing Date Title
KR1019870015360A KR910001517B1 (en) 1987-12-30 1987-12-30 Multi-audio signal choosing circuit for television

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Application Number Priority Date Filing Date Title
KR1019870015360A KR910001517B1 (en) 1987-12-30 1987-12-30 Multi-audio signal choosing circuit for television

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KR890011418A KR890011418A (en) 1989-08-14
KR910001517B1 true KR910001517B1 (en) 1991-03-09

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