KR900004474Y1 - Control circuit of sound range expansion circuit - Google Patents
Control circuit of sound range expansion circuit Download PDFInfo
- Publication number
- KR900004474Y1 KR900004474Y1 KR2019870017028U KR870017028U KR900004474Y1 KR 900004474 Y1 KR900004474 Y1 KR 900004474Y1 KR 2019870017028 U KR2019870017028 U KR 2019870017028U KR 870017028 U KR870017028 U KR 870017028U KR 900004474 Y1 KR900004474 Y1 KR 900004474Y1
- Authority
- KR
- South Korea
- Prior art keywords
- terminal
- switch
- signal
- input
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000005236 sound signal Effects 0.000 description 6
- 101710178035 Chorismate synthase 2 Proteins 0.000 description 4
- 101710152694 Cysteine synthase 2 Proteins 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 회로도.1 is a conventional circuit diagram.
제2도는 본 고안의 음역 확장회로의 제어회로도.2 is a control circuit diagram of a sound range expansion circuit of the present invention.
제3도는 방송상태 및 신호선택에 따른 제2도의 입력단자의 입력신호도표.3 is an input signal diagram of an input terminal of FIG. 2 according to a broadcast condition and signal selection;
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
11 : 스위치제어부 12 : 음역확장회로부11: switch control unit 12: sound range expansion circuit
SW20: 음역확장스위치 SW11-SW13: 스위치SW 20 : Range Expansion Switch SW 11 -SW 13 : Switch
OP1-OP3: 연산증폭기 C1-C4: 콘덴서OP 1 -OP 3 : Operational Amplifier C 1 -C 4 : Condenser
TR1-TR4: 트랜지스터 R1-R13: 저항TR 1 -TR 4 : Transistor R 1 -R 13 : Resistance
본 고안은 음성다중 텔레비젼 수상기에 있어서, 입력되는 두 신호를 조합하여 출력하는 음역 확장회로의 제어회로에 관한 것으로 방송상태 및 방송신호선택 상태에 따라 폭넓은 최적의 음장감을 수신할 수 있게 한 음역 확장회로의 제어회로에 관한 것이다.The present invention relates to a control circuit of a sound range expansion circuit that combines and outputs two input signals in an audio multiple television receiver, and the sound range expansion enables a wide range of sound fields to be received according to a broadcast state and a broadcast signal selection state. It relates to a control circuit of the circuit.
종래에는 제1도에 도시한 바와 같이 기계적 스위치(SW1)(SW2)의 절환에 따라 입력되는 L 및 R 신호의 동일한 신호 및 음역확장회로(1)를 통해 확장된 방송신호로 수신할 수 있게 구성되어 있으므로 스테레오음을 입체감있게 청취하기에는 음역의 폭이 좁을뿐 아니라 분리효과가 저하되어 고음질의 제품설계가 불가능한 결점이 있었다.Conventionally, as shown in FIG. 1 , the same signal of the L and R signals input according to the switching of the mechanical switches SW 1 and SW 2 can be received as an extended broadcast signal through the wide area expansion circuit 1. Because of this configuration, it was not possible to design high-quality products because the range of sound was narrow and the separation effect was lowered to listen to stereo sound in three-dimensional sense.
본 고안은 이와 같은 종래의 결함을 감안하여 방송상태 및 방송신호선택 상태에 따라 입력되는 두 신호를 조합하여 폭넓은 음장감을 청취할 수 있게 안출한 것으로, 이를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.The present invention is designed to listen to a wide range of sound field by combining the two signals according to the broadcast state and the broadcast signal selection state in view of such a conventional defect, as described in detail with reference to the accompanying drawings as follows. same.
제2도에 도시한 바와 같이 트랜지스터(TR1-TR4) 및 저항(R1-R5), 다이오드(D1)로 된 스위치제어부(11)의 트랜지스터(TR1-TR4)의 베이스에 제어신호입력단자(CS1-CS4)를 접속하여 그의 스위치제어부(11)의 출력단자(A)를 연산증폭기(OP1)(OP2)(OP3) 및 스위치(SW11), 저항(R6-R13), 콘덴서(C3)(C4)로된 음역확장회로부(12)의 스위치(SW11)의 제어단자에 접속하고 상기 음역확장회로부(12)의 연산증폭기(OP1)(OP2)의 비반전입력단자(+)(+)에 콘덴서(C1)(C2)를 통한 입력단자(LS1)(RS1)를 저항(R6)(R7)을 통해 접속함과 아울러 타측고정단자(b12)(b13)에 그 음역확장회로부(12)의 출력측인 연산증폭기(OP3)(OP2)의 출력단자가 접속된 음역확장스위치(SW20)의 제어를 받는 스위치(SW12)(SW13)의 일측고정단자(a12)(a13)에 접속하고, 그 스위치(SW12)(SW13)의 가동단자를 L 및 R 신호 출력단자(OUT1)(OUT2)에 접속하여 구성한 것으로 상기에서 제어신호입력단자(CS1-CS4)에는 방송상태 및 신호선택에 따라 제3도에 도시한 도표와 같이 고전위 및 저전위가 선택적으로 입력되게 한다.As shown in FIG. 2, the transistors TR 1 -TR 4 , resistors R 1 -R 5 , and diodes D 1 are provided on the bases of the transistors TR 1 -TR 4 of the switch control unit 11. The control signal input terminals CS 1 -CS 4 are connected and the output terminal A of the switch control unit 11 is connected to the operational amplifier OP 1 (OP 2 ), OP 3 , the switch SW 11 , and the resistor ( R 6 to R 13 ) and the condenser C 3 (C 4 ), which are connected to the control terminal of the switch SW 11 of the region expansion circuit section 12 and the operational amplifier OP 1 of the region expansion circuit section 12. Connect the input terminal LS 1 (RS 1 ) to the non-inverting input terminal (+) (+) of (OP 2 ) through the capacitor (C 1 ) (C 2 ) through the resistor (R 6 ) (R 7 ) In addition, control of the region expansion switch SW 20 to which the other fixed terminal b 12 (b 13 ) is connected to the output terminal of the operational amplifier OP 3 (OP 2 ), which is the output side of the region expansion circuit unit 12, is controlled. It is connected to one fixed terminal a 12 (a 13 ) of the receiving switch SW 12 (SW 13 ), and the switch SW 12 (SW 13 ) is operated. The terminal is connected to the L and R signal output terminals OUT 1 and OUT 2. The control signal input terminals CS 1- CS 4 are connected to the diagrams shown in FIG. Likewise, the high and low potentials are selectively input.
이와 같이 구성된 본 고안의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effect of the present invention configured in this way in detail as follows.
1. 모노방송과 스테레오방송시 모노를 선택할 경우 제어신호입력단자(CS1,CS2)(CS3,CS4)에는 고전위 및 저전위가 각기 입력되고, 제어신호입력단자(CS1)의 고전위가 스위치제어부(11)의 다이오드(D1) 및 저항(R1)을 통해 트랜지스터(TR1)의 베이스에 인가되어 그가 오프되므로 트랜지스터(TR2)(TR3)도 그의 베이스에 인가되는 신호에 관계없이 오프되는 한편, 제어신호입력단자(CS4)의 저전위가 저항(R4)을 통해 트랜지스터(TR4)의 베이스에 인가되어 그가 오프되고, 이에 따라 전원단자(B+)의 전원이 저항(R5)을 통해 음역확장회로부(12)의 스위치(SW11)의 제어단자에 고전위로 인가되어 그 스위치(SW11)의 가동 단자가 타측고정단자(b11)에 단락되므로 입력단자(LS1)(RS1)로 입력되는 음성신호는 콘덴서(C1)(C2)를 통해 스위치(SW12)(SW13)의 일측고정단자(a12)(a13)에 인가됨과 아울러 저항(R6)(R7)을 통해 연산증폭기(OP1)OP2)의 비반전입력단자(+)(+)에 입력되어 상기에서 스위치(SW11)의 가동단자가 타측고정단자(b11)에 단락되어 있으므로 연산증폭기(OP1)(OP2)의 출력단자로 출력되는 신호는 저항(R9)(R10)으로 각각 통해 그의 반전입력단자(-)(-)에 궤환되고, 이에 따라 적절히 중첩된 음성신호로 연산증폭기(OP1)(OP2)의 출력단자로 출력되고, 상기 연산증폭기(OP2)에서 출력되는 음성신호는 스위치(SW13)의 타측고정단자(b13)에 인가되고, 연산증폭기(OP1)에서 출력되는 음성신호는 저항(R11)을 통해 연산증폭기(OP3)의 반전입력단자(-)에 입력됨과 아울러 저항(R12) 및 콘덴서(C4)를 통해 그의 비반전입력단자(+)에 입력되어 저항(R12) 및 콘덴서(C4)의 시정수에 의해 위상이 지연된 후 상기 그의 반전입력단자(-)에 입력된 신호와 함께 연산증폭기(OP3)를 통해 스위치(SW12)의 타측고정단자(b12)에 인가된다.1 shows a mono and stereo, if the selected broadcast during Mono control signal input terminal (CS 1, CS 2) ( CS 3, CS 4) has the high potential and low potential are respectively inputted, the control signal input terminal (CS 1) The high potential is applied to the base of the transistor TR 1 through the diode D 1 and the resistor R 1 of the switch control unit 11 and is turned off so that the transistor TR 2 (TR 3 ) is also applied to its base. While the signal is turned off regardless of the signal, the low potential of the control signal input terminal CS 4 is applied to the base of the transistor TR 4 through the resistor R 4 , so that it is turned off, thereby turning off the power supply terminal B + . The power supply is applied at high potential to the control terminal of the switch SW 11 of the sound domain expansion circuit part 12 through the resistor R 5 , and the movable terminal of the switch SW 11 is short-circuited to the other fixed terminal b 11 . terminals (LS 1) audio signal that is input to (RS 1) is a capacitor (C 1) via the switch (C 2) (SW 12) and one side of the (SW 13) Terminal (a 12) (a 13) is applied as soon as well as a resistance (R 6) (R 7), an operational amplifier (OP 1) through OP 2) of the input to the non-inverting input terminal (+) (+) switch in the on Since the movable terminal of (SW 11 ) is short-circuited to the other fixed terminal (b 11 ), the signal output to the output terminal of the operational amplifier OP 1 (OP 2 ) passes through the resistors R 9 (R 10 ), respectively. The voice signal fed back to the inverting input terminal (-) (-) and output accordingly to the output terminal of the operational amplifier OP 1 (OP 2 ) as a sound signal superimposed appropriately, and output from the operational amplifier OP 2 the inverting input terminal of the switch (SW 13), the other fixed terminal (b 13) is applied to the operational amplifier (OP 1) the operational amplifier (OP 3) from the speech signal is a resistance (R 11) outputted from the (-) soon as the input as well as a resistance (R 12) and capacitor (C 4) is input to its non-inverting input terminal (+) via a resistor (R 12) and capacitor (C 4), then the phase delay by the time constant of the The inverting input terminal (-) with the signal inputted through the operational amplifier (OP 3) is applied to the other fixed terminal of the switch (SW 12), (b 12).
이와같은 상태에서 음역확장스위치(SW20)를 오프시킬 경우에는 스위치(SW12)(SW13)의 가동단자가 일측고정단자(a12)(a13)에 단락되어 상기한 바와 같이 입력되는 동일한 신호가 스위치(SW12)(SW13)를 L 및 R 신호 출력단자(OUT1)(OUT2)로 출력되고, 음역확장스위치(SW20)를 온시킬 경우에는 전원단자(B+)의 전원이 그 스위치(SW20)를 통해 스위치(SW12)(SW13)의 제어단자에 고전위로 인가되어 스위치(SW12)(SW13)의 가동단자가 타측고정단자(b12)(b13)에 단락되고, 이에 따라 상기한 바와 같이 타측고정단자(b12)(b13)에 인가된 위상이 지연된 신호와 L 및 R 신호가 적절히 중첩된 신호가 각각 스위치(SW12)(SW13)를 통해 L 및 R 신호 출력단자(OUT1)(OUT2)로 출력된다.If this state to turn off the sound field expansion switch (SW 20) in such a switch (SW 12) (SW 13) the movable terminal side fixed terminal (a 12) is short-circuited to (a 13) the same input as described above, the The signal is output from the switch (SW 12 ) (SW 13 ) to the L and R signal output terminals (OUT 1 ) (OUT 2 ), and the power supply of the power supply terminal (B + ) is turned on when the range expansion switch (SW 20 ) is turned on. the switch through the switch (SW 20) (SW 12) is applied the classic up to the control terminal of the (SW 13) switch (SW 12) the movable terminal is the other fixed terminal of the (SW 13) (b 12) (b 13) As a result, the delayed signal applied to the other fixed terminal (b 12 ) (b 13 ) and a signal in which the L and R signals are properly superimposed respectively switch SW 12 (SW 13 ) as described above. Through the L and R signal output terminal (OUT 1 ) (OUT 2 ).
2. 스테레오 방송시 스테레오 선택할 경우 제어신호입력단자(CS1,CS2,CS4),(CS2)에는 각기 저전위 및 고전위가 입력되고, 제어신호입력단자(CS3)의 저전위가 스위치제어부(11)의 저항(R3)을 통해 트랜지스터(TR3)의 베이스에 인가되어 그가 오프되므로 트랜지스터(TR1)(TR2)도 그의 베이스에 인가되는 신호에 관계없이 오프되는 한편, 제어신호입력단자(CS4)의 저전위가 저항(R4)을 통해 트랜지스터(TR4)의 베이스에 인가되어 그가 오프되고, 이에 따라 상기한 바와 같이 모노방송시와 마찬가지로 전원단자(B+)의 전원이 저항(R5)을 통해 음역확장회로부(12)의 스위치(SW11)의 제어단자에 고전위로 인가되어 그 스위치(SW11)의 가동단자가 타측고정단자(b11)에 단락되므로 입력단자(LS1)(RS1)로 입력되는 음성신호는 콘덴서(C1)(C2)를 통해 스위치(SW12)(SW13)의 일측고정단자(a12)(a13)에 인가됨과 아울러 저항(R6)(R7)을 통해 연산증폭기(OP1)(OP2)의 비반전입력단자(+)(+)에 입력되어 상기에서 스위치(SW11)의 가동단자가 타측고정단자(b11)에 단락되어 있으므로 연산증폭기(OP1)(OP2)의 출력단자로 출력되는 신호는 저항(R9)(R10)을 통해 그의 반전입력단자(-)(-)에 궤환되고, 스테레오음이 적절히 충전된 음성신호로 연산증폭기(OP1)(OP2)의 출력단자로 출력되며, 상기 연산증폭기(OP2)에서 출력되는 음성신호는 스위치(SW13)의 타측고정단자(b13)에 인가되고, 연산증폭기(OP1)에서 출력되는 음성신호는 저항(R11)을 통해 연산증폭기(OP3)의 반전입력단자(-)(-)에 입력됨과 아울러 저항(R12) 및 콘덴서(C4)를 통해 그의 비반전입력단자(+)(+)에 입력되어 저항(R12) 및 콘덴서(C4)의 시정수에 의해 위상이 지연된 후 상기 그의 반전입력단자(-)(-)에 입력된 신호와 함께 연산증폭기(OP3)를 통해 스위치(SW12)의 타측고정단자(b12)에 인가된다.2. a low potential when a stereo broadcast is in stereo select control signal input terminal (CS 1, CS 2, CS 4), (CS 2) there is respectively input the low potential and the high potential, the control signal input terminal (CS 3) Since it is applied to the base of the transistor TR 3 through the resistor R3 of the switch control unit 11 and is turned off, the transistor TR 1 (TR 2 ) is also turned off regardless of the signal applied to the base, while the control signal The low potential of the input terminal CS 4 is applied to the base of the transistor TR 4 via the resistor R 4 , which is turned off, and thus the power supply of the power supply terminal B + as in the case of mono broadcasting as described above. The resistor R 5 is applied at a high potential to the control terminal of the switch SW 11 of the sound field expansion circuit unit 12 so that the movable terminal of the switch SW 11 is short-circuited to the other fixed terminal b 11 , so that the input terminal The voice signal input to (LS 1 ) (RS 1 ) is switched via a condenser (C 1 ) (C 2 ) (SW 12 ) It is applied to one fixed terminal (a 12 ) (a 13 ) of (SW 13 ) and the non-inverting input terminal (+) of the operational amplifier (OP 1 ) (OP 2 ) through the resistor (R 6 ) (R 7 ). +) And the movable terminal of the switch SW 11 is shorted to the other fixed terminal b 11 in the above, so that the signal output to the output terminal of the operational amplifier OP 1 and OP 2 is a resistor R 9 . The feedback signal is fed back to its inverting input terminal (-) (-) through R 10 and output to the output terminal of the operational amplifier OP 1 (OP 2 ) as a voice signal in which stereo sound is properly charged. The audio signal output from OP 2 ) is applied to the other fixed terminal b 13 of the switch SW 13 , and the audio signal output from the operational amplifier OP 1 is supplied to the operational amplifier OP 3 through the resistor R 11 . ) Is input to the inverting input terminal (-) (-) and to the non-inverting input terminal (+) (+) through a resistor (R 12 ) and a capacitor (C 4 ) so that the resistor (R 12 ) and the capacitor ( The phase is changed by the time constant of C 4 ) After the delay is applied to the other fixed terminal (b 12 ) of the switch (SW 12 ) through the operational amplifier (OP 3 ) with the signal input to the inverting input terminal (-) (-) thereof.
이와 같은 상태에서 음역확장스위치(SW20)를 오프시킬 경우에는 스위치(SW12)(SW13)의 가동단자가 일측고정단자(a12)(a13)에 단락되어 상기한 바와 같이 입력되는 동일한 신호가 스위치(SW12)(SW13)를 통해 L 및 R 신호 출력단자(OUT1)(OUT2)로 출력되고, 음역확장스위치(SW20)를 온시킬 경우에는 전원단자(B+)의 전원이 그 스위치(SW20)를 통해 스위치(SW12)(SW13)의 제어단자에 고전위로 인가되어 스위치(SW12)(SW13)의 가동단자가 타측고정단자(b12)(b13)에 단락되고, 이에 따라 상기한 바와 같이 타측고정단자(b12)(b13)에 인가된 위상이 지연된 신호와 L 및 R 신호가 적절히 충전된 신호가 각각 스위치(SW12)(SW13)를 통해 L 및 R 신호 출력단자(OUT1)(OUT2)로 출력된다.In this state, when the transliteration expansion switch SW 20 is turned off, the movable terminal of the switch SW 12 (SW 13 ) is shorted to one fixed terminal a 12 (a 13 ) and inputted as described above. The signal is output to the L and R signal output terminals (OUT 1 ) (OUT 2 ) through the switch (SW 12 ) (SW 13 ), and when the range expansion switch (SW 20 ) is turned on, the power terminal (B + ) Power is applied to the control terminal of the switch SW 12 (SW 13 ) at high potential through the switch SW 20 so that the movable terminal of the switch SW 12 (SW 13 ) is fixed to the other fixed terminal b 12 (b 13 ). As a result, the phase-delayed signal applied to the other fixed terminal (b 12 ) (b 13 ) and the signal appropriately charged with the L and R signals are respectively switched (SW 12 ) (SW 13 ) as described above. Through L and R signal output terminal (OUT 1 ) (OUT 2 ) is output.
3. 이개국어방송시3. Foreign language broadcasting
1) 주신호만을 선택할 경우 제어신호입력단자(CS1-CS3),(CS4)에는 각기 고전위 및 저전위가 입력되고, 제어신호입력단자(CS1)의 고전위가 스위치제어부(11)의 다이오드(D1) 및 저항(R1)을 통해 트랜지스터(TR1)의 베이스에 인가되어 그가 오프되므로 트랜지스터(TR2)(TR3)도 그의 베이스에 인가되는 신호에 관계없이 오프되는 한편, 제어신호입력단자(CS4)의 저전위가 저항(R4)을 통해 트랜지스터(TR4)의 베이스에 인가되어 그가 오프되고, 이에 따라 전원단자(B+)의 전원이 저항(R5)을 통해 음역확장회로부(12)의 스위치(SW11)의 제어단자에 고전위로 인가되어 그 스위치(SW11)의 가동단자가 타측고정단자(b11)에 단락되므로 상기한 바와 같이 모노 및 스테레오 방송 선택시에 동일하게 동작하게 된다.1) When only the main signal is selected, the high potential and low potential are respectively input to the control signal input terminals CS 1 -CS 3 and CS 4 , and the high potential of the control signal input terminal CS 1 is controlled by the switch control unit 11. Is applied to the base of transistor TR 1 through diode D 1 and resistor R 1 of and is turned off, so transistor TR 2 (TR 3 ) is also turned off regardless of the signal applied to its base. The low potential of the control signal input terminal CS 4 is applied to the base of the transistor TR 4 through the resistor R 4 so that it is turned off, and thus the power supply of the power supply terminal B + is turned off in the resistor R 5 . since the range is a classic Back applied to the control terminal of the switch (SW 11) of the expansion circuit 12, the movable terminal of the switch (SW 11) by a short-circuit to the other fixed terminal (b 11), mono and stereo broadcasting, as described above When selected, the same operation is performed.
2) 부신호만을 선택할 경우 제어신호입력단자(CS3),(CS1,CS2,CS4)에는 고전위 및 저전위가 각기 입력되고, 제어신호입력단자(CS2)의 저전위가 스위치제어부(11)의 저항(R2)을 통해 트랜지스터(TR2)의 베이스에 인가되어 그가 오프되므로 트랜지스터(TR1)(TR2)도 그의 베이스에 인가되는 신호에 관계없이 오프되는 한편, 제어신호입력단자(CS4)의 저전위가 저항(R4)을 통해 트랜지스터(TR4)의 베이스에 인가되어 그가 오프되고, 이에 따라 전원단자(B+)의 전원이 저항(R5)을 통해 음역확장회로부(12)의 스위치(SW11)의 제어단자에 고전위로 인가되어 그 스위치(SW11)의 가동단자가 타측고정단자(b11)에 단락되므로 상기한 바와 같이 모노, 스테레오, 주신호 방송선택시와 동일하게 동작하게 된다.2) If only the sub-signals are selected, high and low potentials are respectively input to the control signal input terminals CS 3 and CS 1 , CS 2 and CS 4 , and the low potential of the control signal input terminals CS 2 is switched. Since it is applied to the base of the transistor TR 2 through the resistor R 2 of the control unit 11 and is turned off, the transistor TR 1 (TR 2 ) is also turned off regardless of the signal applied to the base, while the control signal The low potential of the input terminal CS 4 is applied to the base of the transistor TR 4 via the resistor R 4 so that it is turned off, so that the power supply of the power supply terminal B + is negative through the resistor R 5 . Since the high voltage is applied to the control terminal of the switch SW 11 of the expansion circuit unit 12 and the movable terminal of the switch SW 11 is short-circuited to the other fixed terminal b 11 , mono, stereo, and main signal broadcasting as described above. It works the same as when selected.
3) 주 및 부신호를 모두 선택할 경우 제어신호입력단자(CS1,CS4),(CS2,CS3)에는 각기 저전위 및 고전위가 입력되고 제어신호입력단자(CS1)의 저전위가 스위치제어부(11)의 다이오드(D1) 및 저항(R1)을 통해 트랜지스터(TR1)의 베이스에 인가되어 그가 온되고, 제어신호입력단자(CS2)(CS3)의 고전위가 저항(R2)(R3)을 통해 트랜지스터(TR2)(TR3)의 베이스에 인가되어 그가 온되므로 제어신호입력단자(CS4)의 저전위가 저항(R4)을 통해 트랜지스터(TR4)의 베이스에 인가되어 그가 오프됨에 관계없이 전원단자(B°)의 전원이 트랜지스터(TR1)(TR2)(TR3)를 통해 접지되고, 이에 따라 음역확장회로부(12)의 스위치(SW11)의 제어단자에 저전위가 인가되어 그 스위치(SW11)의 가동단자가 일측고정단자(a11)에 단락되므로 입력단자(LS1)(RS1)로 입력되는 음성신호는 콘덴서(C1)(C2)를 통해 스위치(SW12)(SW13)의 일측고정단자(a12)(a13)에 인가됨과 아울러 저항(R6)(R7)을 통해 연산증폭기(OP1)(OP2)의 비반전입력단자(+)(+)에 입력되어 상기에서 스위치(SW11)의 가동단자가 일측고정단자(a11)에 단락되어 있으므로 연산증폭기(OP1)(OP2)의 출력단자로 출력되는 신호는 저항(R9)(R10)을 각기 통해 그의 반전입력단자(-)(-)에 궤환되고, 주 및 부신호가 혼합되지 않은 각 신호로 연산증폭기(OP1)(OP2)의 출력단자로 출력되고, 상기 연산증폭기(OP2)에서 출력되는 음성신호는 입력되는 동일한 신호로 스위치(SW13)의 타측고정단자(b13)에 인가되고, 연산증폭기(OP1)에서 출력되는 음성신호는 저항(R11)을 통해 연산증폭기(OP3)의 반전입력단자(-)(-)에 입력됨과 아울러 저항(R12) 및 콘덴서(C4)를 통해 그의 비반전입력단자(+)(+)에 입력되어 저항(R12) 및 콘덴서(C4)의 시정수에 의해 위상이 지연된 후 상기 그의 반전입력단자(-)(-)에 입력된 신호와 함께 연산증폭기(OP3)을 통해 스위치(SW12)의 타측고정단자(b12)에 인가된다.3) select all of the primary and secondary signal control signal input terminal (CS 1, CS 4), (CS 2, CS 3) , the respective input is low potential and the high potential and low potential of a control signal input terminal (CS 1) Is applied to the base of the transistor TR 1 through the diode D 1 and the resistor R 1 of the switch control unit 11, and it is turned on, and the high potential of the control signal input terminal CS 2 (CS 3 ) is The low potential of the control signal input terminal CS 4 is applied to the base of the transistor TR 2 (TR 3 ) through the resistor R 2 (R 3 ) and is turned on so that the transistor TR through the resistor R 4 . 4 ) the power of the power supply terminal B ° is grounded through the transistors TR 1 (TR 2 ) (TR 3 ) irrespective of whether they are applied to the base of the base and are turned off. SW 11) is applied with the low potential to the control terminal of the since the movable terminal of the switch (SW 11) short-circuited to one side fixed terminals (11 a) input terminals (LS 1) (audio signal that is input to the RS 1) A capacitor (C 1) fixed terminal side of the switch (SW 12) (SW 13) through (C 2) (a 12) (a 13) is applied as soon as well as the operational amplifier via a resistor (R 6) (R 7) in The operational amplifier (OP 1 ) is input to the non-inverting input terminal (+) (+) of (OP 1 ) (OP 2 ) and the operating terminal of the switch SW 11 is short-circuited to one fixed terminal (a 11 ). The signal output to the output terminal of (OP 2 ) is fed back to its inverting input terminal (-) (-) through the resistors R 9 and R 10 , respectively, and is calculated as each signal in which the main and sub signals are not mixed. It is output to the output terminal of the amplifier (OP 1 ) (OP 2 ), the audio signal output from the operational amplifier (OP 2 ) is applied to the other fixed terminal (b 13 ) of the switch (SW 13 ) as the same signal inputted In addition, the voice signal output from the operational amplifier OP 1 is input to the inverting input terminal (-) (-) of the operational amplifier OP 3 through the resistor R 11 and the resistor R 12 and the capacitor C 4. Through his non-inverting input Here (+) (+) is inputted to the resistor (R12) and a capacitor (C 4), after the phase delayed by the time constant above its inverting input terminal of the (-) (-), the operational amplifier with the signal input to the (OP 3 ) is applied to the other fixed terminal (b 12 ) of the switch (SW 12 ).
이와 같은 상태에서 음역확장스위치(SW20)를 오프시킬 경우에는 스위치(SW12)(SW13)의 가동단자가 일측고정단자(a12)(a13)에 단락되어 상기한 바와 같이 입력되는 동일한 신호가 스위치(SW12)(SW13)를 통해 L 및 R신호 출력단(OUT1)(OUT2)로 출력되고, 음역확장스위치(SW20)를 온시킬 경우에는 전원단자(B+)의 전원이 그 타측고정단자(b12)(b13)에 단락되고, 이에 따라 상기한 바와 같이 타측고정단자(b12)(b13)에 인가된 위상이 지연된 신호와 입력되는 동일한 신호가 각각 스위치(SW12)(SW13)를 통해 L 및 R 신호출단자(OUT1)(OUT2)로 출력된다.In this state, when the transliteration expansion switch SW 20 is turned off, the movable terminal of the switch SW 12 (SW 13 ) is shorted to one fixed terminal a 12 (a 13 ) and inputted as described above. The signal is output to the L and R signal output terminals (OUT 1 ) (OUT 2 ) through the switch (SW 12 ) (SW 13 ), and the power supply of the power supply terminal (B + ) is turned on when the range expansion switch (SW 20 ) is turned on. The other fixed terminal (b 12 ) (b 13 ) is short-circuited, and as a result, as described above, the phase-delayed signal applied to the other fixed terminal (b 12 ) (b 13 ) and the same signal inputted are respectively switched ( It is output to the L and R signal output terminals OUT 1 and OUT 2 through SW 12 ) and SW 13 .
4. 라인영상신호를 선택할 경우 제어신호입력단자(CS4)에 고전위가 입력되고, 그 입력된 고전위는 스위치제어부(11)의 저항(R4)을 통해 트랜지스터(TR4)의 베이스에 인가되어 그가 온되고, 이에 따라 전원단자(B+)의 전원이 저항(R5) 및 트랜지스터(TR4)를 통해 접지되어 음역확장회로부(12)의 스위치(SW11)의 제어단자에 저전위가 인가되고, 이에 따라 그 스위치(SW11)의 가동단자가 일측고정단자(a11)에 단락되므로 상기한 바와 같이 이개국어방송시 주 및 부신호를 모두 선택한 경우와 마찬가지로 동작되게 하여 라인영상신호의 주 및 부신호의 선택에 따른 주 및 부신호의 혼입을 방지하게 한다.4. When the line video signal is selected, the high potential is input to the control signal input terminal CS 4 , and the input high potential is applied to the base of the transistor TR 4 through the resistor R4 of the switch controller 11. As a result, the power supply of the power supply terminal B + is grounded through the resistor R 5 and the transistor TR 4 so that a low potential is applied to the control terminal of the switch SW 11 of the sound expansion circuit portion 12. As a result, the movable terminal of the switch SW 11 is short-circuited to one fixed terminal a 11 , so that it operates in the same manner as in the case of selecting both the main and sub-signals in a foreign language broadcast as described above. It is possible to prevent mixing of the main and sub-signals due to the selection of the main and sub-signals.
이상에서 설명한 바와 같이 본 고안은 방송상태 및 신호선택 상태에 따라 제어신호를 출력하여 좌,우측 스피커의 거리가 제한된 거기에서 모노뿐만 아니라 스테레오의 특수음향 효과로 폭넓은 최적의 음장감을 청취하게 되는 효과가 있다.As described above, the present invention outputs a control signal according to a broadcasting state and a signal selection state, whereby the distance between the left and right speakers is limited, so that the user can hear a wide range of sound fields with a special sound effect of stereo as well as mono. There is.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870017028U KR900004474Y1 (en) | 1987-09-30 | 1987-09-30 | Control circuit of sound range expansion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870017028U KR900004474Y1 (en) | 1987-09-30 | 1987-09-30 | Control circuit of sound range expansion circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890007994U KR890007994U (en) | 1989-05-18 |
| KR900004474Y1 true KR900004474Y1 (en) | 1990-05-21 |
Family
ID=19268436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870017028U Expired KR900004474Y1 (en) | 1987-09-30 | 1987-09-30 | Control circuit of sound range expansion circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900004474Y1 (en) |
-
1987
- 1987-09-30 KR KR2019870017028U patent/KR900004474Y1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR890007994U (en) | 1989-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR900004474Y1 (en) | Control circuit of sound range expansion circuit | |
| US5107134A (en) | Matrix circuit of fm stereo multiplex demodulation circuit | |
| KR960008946B1 (en) | Signal connecting circuit device | |
| JPH0339929Y2 (en) | ||
| KR910000555Y1 (en) | Voice multiple switching circuit | |
| KR900009927Y1 (en) | Surround sound automatic switching circuit | |
| KR910001517B1 (en) | Voice Multiple Signal Selector for TV Receiver | |
| KR900001331Y1 (en) | Automatic Surround Mode Switching Circuit for Voice Multiple TVs | |
| KR870001305Y1 (en) | Switching circuit for multi-language broadcasting system | |
| KR820001568Y1 (en) | Muting circuit | |
| JPS6314505Y2 (en) | ||
| KR880000915Y1 (en) | Voice signal auto-switching circuit in voice multi-channel broadcasting system | |
| KR940002016Y1 (en) | Hi-fi signal and normal signal automatic switching circuit of vcr | |
| KR200145193Y1 (en) | Sound signal output control circuit | |
| KR910004404Y1 (en) | Output control circuit on audio system | |
| KR910004407Y1 (en) | Voice Multiple Mode Control Circuit | |
| KR900009926Y1 (en) | Automatic main audio signal selecting circuit for television | |
| KR900010908Y1 (en) | Switching circuit of multimodal TV | |
| KR920004342Y1 (en) | Volume Compensation Demodulation Circuit | |
| JPH0614715B2 (en) | Switching sound elimination circuit | |
| KR910001582Y1 (en) | Voice switching circuit of voice multiple TV | |
| KR820002312Y1 (en) | Mu-tuning circuit of television receiver | |
| KR880003920Y1 (en) | Signal Switching Circuit of Monitor TV | |
| KR910007425Y1 (en) | Multi type signal switching circuit | |
| KR870001306Y1 (en) | Voice multicast signal selection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19870930 |
|
| UA0201 | Request for examination |
Patent event date: 19870930 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
|
| UG1501 | Laying open of application | ||
| UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19900423 |
|
| E701 | Decision to grant or registration of patent right | ||
| UE0701 | Decision of registration |
Patent event date: 19900808 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
| REGI | Registration of establishment | ||
| UR0701 | Registration of establishment |
Patent event date: 19901018 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
| UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19901018 |
|
| UR1001 | Payment of annual fee |
Payment date: 19930329 Start annual number: 4 End annual number: 4 |
|
| UR1001 | Payment of annual fee |
Payment date: 19940326 Start annual number: 5 End annual number: 5 |
|
| UR1001 | Payment of annual fee |
Payment date: 19941228 Start annual number: 6 End annual number: 6 |
|
| UR1001 | Payment of annual fee |
Payment date: 19951226 Start annual number: 7 End annual number: 7 |
|
| UR1001 | Payment of annual fee |
Payment date: 19961223 Start annual number: 8 End annual number: 8 |
|
| FPAY | Annual fee payment |
Payment date: 19971229 Year of fee payment: 9 |
|
| UR1001 | Payment of annual fee |
Payment date: 19971229 Start annual number: 9 End annual number: 9 |
|
| LAPS | Lapse due to unpaid annual fee | ||
| UC1903 | Unpaid annual fee |