KR920002928Y1 - Voice lowpass expanding circuit - Google Patents

Voice lowpass expanding circuit Download PDF

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Publication number
KR920002928Y1
KR920002928Y1 KR2019880004765U KR880004765U KR920002928Y1 KR 920002928 Y1 KR920002928 Y1 KR 920002928Y1 KR 2019880004765 U KR2019880004765 U KR 2019880004765U KR 880004765 U KR880004765 U KR 880004765U KR 920002928 Y1 KR920002928 Y1 KR 920002928Y1
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amplifier
voice
unit
output
low
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KR2019880004765U
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Korean (ko)
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KR890022181U (en
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원태연
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삼성전자 주식회사
안시환
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Publication of KR920002928Y1 publication Critical patent/KR920002928Y1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/01—Input selection or mixing for amplifiers or loudspeakers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)

Abstract

내용 없음.No content.

Description

음성 저역 확장회로Voice low pass expansion circuit

본 고안의 회로도.Circuit diagram of the present invention.

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

10 : 저역필터부 20 : 위상반전부10: low pass filter 20: phase inversion

30 : 저음확장 및 감지부 40 : 음성 출력 조정부30: low sound expansion and detection unit 40: voice output adjustment unit

50 : 증폭부 I1-I2: 입력단자50: amplifier I 1 -I 2 : input terminal

O1-O4: 출력단자 R1-R9: 저항O 1 -O 4 : Output terminal R 1 -R 9 : Resistance

VR1: 가변저항 G1-G7: 콘덴서VR 1 : Variable resistor G 1 -G 7 : Capacitor

A1∼A4: 앰프 Q1: 트랜지스터A 1 to A 4 : Amplifier Q 1 : Transistor

LED : 발광다이오드 SW1: 연동스위치LED: Light Emitting Diode SW 1 : Interlock Switch

OP1, OP2: OP앰프 SP : 스피커OP 1 , OP 2 : OP amplifier SP: speaker

SIF : 음성중간주파처리부 IC1: 서라운드 집적소자SIF: Voice Intermediate Frequency Processing IC 1 : Surround Integrated Device

B+: 전원B + : power

본 고안은 음성의 저역 부분을 강조시켜 서라운드 효과를 얻도록한 음성 저역 확장 회로에 관한 것이므로 종래에는 메인 신호만을 출력시키거나 고음 부분을 강조하는 서라운드 효과를 사용하여 음성 특성을 강조시켰으나 사용자는 더욱 생동감있는 음을 요구하게 되었다.Since the present invention relates to a voice low pass expansion circuit that emphasizes a low range of a voice to obtain a surround effect, conventionally, the voice characteristics are emphasized by using a surround effect that outputs only the main signal or emphasizes a high-pitched portion. I asked for a tone.

본 고안의 목적은 입력 음성 신호중 저음만을 추출한후 강조시킴으로서 보다 웅장감있는 음이 재생되도록 한 음성 저역 확장회로를 제공하고자 하는 것으로 추출된 음성의 저역 부분이 반전 및 증폭되어 출력되게 구성한 것이다.It is an object of the present invention to provide a voice low pass extension circuit for reproducing a more grandiose sound by extracting and emphasizing only a low tone of an input voice signal.

이를 첨부 도면에 의하여 상세히 설명하면 다음과 같다.This will be described in detail with reference to the accompanying drawings.

본 고안의 회로도에서 입력단자(I1), (I2)에 인가되어 음성 중간주파처리부(VIF)를 통과한 R. L채널 음성신호가 메인 앰프(A1), (A2)를 통하여 출력단자(O1), (O2)후단에 인가되어 구성함과 동시에 서라운드 집적소자(IC1)와 앰프(A3), (A4)를 통하여 출력단자(O3), (O4)후단에 인가되게 구성한 서라운드 회로에 있어서 음성주파처리부(VIF)의 출력(P1), (P2)측 사이에 구성된 저역필터부(10)는 음성중간주파처리부(VIF)의 저역 부분의 출력(P1), (P2)이 저항(R1), (R2)과 콘덴서(C3)를 통하여 검출되게 구성한 것이며 위상반전부(20)는 저역필터부(10)의 출력이 직류 차단용 콘덴서(C4)와 바이어스 저항(R3-R5)을 통하여 트랜지스터(Q1)를 구동시켜 반전되게 구성한 것이다.In the circuit diagram of the present invention, the R. L channel voice signal applied to the input terminals I 1 and I 2 and passed through the voice intermediate frequency processing unit VIF is output through the main amplifiers A 1 and A 2 . It is applied after the terminals (O 1 ) and (O 2 ) and is configured at the same time, after the output terminals (O 3 ) and (O 4 ) through the surround integrated device (IC 1 ), amplifiers (A 3 ) and (A 4 ). In the surround circuit configured to be applied to the low pass filter unit 10 arranged between the outputs P 1 and P 2 of the voice frequency processing unit VIF, the output P of the low pass portion of the voice intermediate frequency processing unit VIF is provided. 1 ), (P 2 ) is configured to be detected through the resistors (R 1 ), (R 2 ) and the capacitor (C 3 ) and the phase inversion unit 20 is the output of the low-pass filter unit 10 is a DC blocking capacitor The transistor Q 1 is driven through (C 4 ) and the bias resistors R 3 -R 5 to be inverted.

그리고 저음 확장 구동 및 감지부(30)는 전원(B+)이 연동스위치(SW1)를 통하여 위상반전부(20)를 구동하게 함과 동시에 저항(R9)과 발광다이오드(LED)를 통하여 저음 확장 구동상태가 감지되게 구성한 것이고 음성출력조정부(40)는 위상반전부(20)의 출력이 비반전증폭용 OP앰프(OP1)와 접속된 가변저항, 직류차단용 콘덴서(C5), 저항(R6)을 통하여 조정되어 음성 출력이 조정되게 구성한 것이며 증폭부(50)는 음성출력조정부(40)의 출력이 비반전 증폭용 OP앰프(OP2)와 접속된 저항(R7), (R8), 직류차단용 콘덴서(C6)를 통하여 증폭되어 스피커(SP)에 인가되게 구성한 것이다.In addition, the bass extension driving and sensing unit 30 causes the power source B + to drive the phase inversion unit 20 through the interlock switch SW 1 , and at the same time, through the resistor R 9 and the light emitting diode LED. The bass extension driving state is configured to be sensed, and the voice output adjusting unit 40 includes a variable resistor, a DC blocking capacitor C 5 , in which an output of the phase inversion unit 20 is connected to an OP amplifier OP 1 for non-inverting amplification. The audio output is adjusted by adjusting the resistor R 6 , and the amplifier 50 includes a resistor R 7 having an output of the audio output adjusting unit 40 connected to an OP amplifier OP 2 for non-inverting amplification. R 8 and amplified by the DC blocking capacitor C 6 are applied to the speaker SP.

미설명 부호 C1, C2, C7는 음성중간주파처리부(VIF)의 출력(P1), (P2)측 및 스피커(SP)에 접속된 직류 차단용 콘덴서이다.Reference numerals C 1 , C 2 and C 7 are DC blocking capacitors connected to the outputs P 1 , P 2 and the speaker SP of the voice intermediate frequency processing unit VIF.

이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.

본 고안의 회로도에서 음성 중간 주파처리부(VIF)를 통과한 입력단자(I1), (I2)의 R, L채널 음성 신호가 앰프(A1), (A2)를 통하여 출력단자(O1), (O2)후단에 메인 출력을 인가함과 동시에 서라운드 집적소자(IC1)와 앰프(A3), (A4)를 통하여 출력단자(O3), (O4)후단에 인가됨으로서 고음 처리한 서라운드 효과가 얻어진다.In the circuit diagram of the present invention, the R and L channel audio signals of the input terminals I 1 and I 2 passing through the voice intermediate frequency processing unit VIF are output through the amplifiers A 1 and A 2 . 1 ), The main output is applied to the rear of (O 2 ) and the output terminal (O 3 ) and (O 4 ) are connected to the rear through the integrated integrated circuit (IC 1 ), amplifiers (A 3 ) and (A 4 ). As a result, a surround sound effect is obtained.

여기서 연동스위치(SW1)를 단자(온)접속시키게 되면 전원(B+)이 연동스위치(SW1)와 저항(R9)을 통하여 발광다이오드(LED)를 점등시킴으로서 저역용 서라운드의 사용이 감지될수 있는 것이며 이와 동시에 음성 중간 주파 처리부(VIF)의 출력(P1), (P2)측으로부터 인가된 R, L채널 음성 신호가 직류 차단용 콘덴서(C1), (C2)를 통과하고 저항(R1), (R2)과 콘덴서(C3)를 통하여 저역부분이 검출된후 직류차단용 콘덴서(C4)와 바이어스 저항(R3), (R4)을 통하여 트랜지스터(Q1)를 "턴온"시킨후 연동스위치(SW1)의 단자(온)에 인가된 전원(B+)이 저항(R5)과 트랜지스터(Q1)를 통하여 접지로 흐름에 따라 트랜지스터(Q1)의 콜렉터측에는 인가되는 저역 음성신호가 반전되어 OP앰프(OP1)의 비반전(+)측에 인가되는 것이다.Here, when the interlock switch (SW 1 ) is connected to the terminal (on), the power (B + ) turns on the light emitting diode (LED) through the interlock switch (SW 1 ) and the resistor (R 9 ) to detect the use of low-pass surround. At the same time, the R and L channel voice signals applied from the outputs P 1 and P 2 of the voice intermediate frequency processing unit VIF pass through the DC blocking capacitors C 1 and C 2 . After the low range is detected through the resistors (R 1 ), (R 2 ) and the capacitor (C 3 ), the transistor (Q 1 ) through the DC blocking capacitor (C 4 ) and the bias resistors (R 3 ), (R 4 ) ) Is turned on and the power supply (B + ) applied to the terminal (on) of the interlock switch (SW 1 ) flows to the ground through the resistor (R 5 ) and the transistor (Q 1 ) to the transistor (Q 1 ). The low frequency audio signal applied to the collector side of is inverted and applied to the non-inverting (+) side of the OP amplifier OP 1 .

그리고 OP앰프(OP1)의 출력이 저항(R6)과 가변저항(VR1)을 통하여 OP앰프(OP1)의 반전(-)측으로 궤환됨에 따라 OP앰프(OP1)를 통하여 출력되는 음성신호가 가변저항(VR1)을 통하여 조정된후 콘덴서(C6) 및 저항(R7), (R8)과 접속된 비반전 증폭용 OP앰프(OP2)를 통하여 증폭되어 스피커(SP)에 인가됨으로서 더욱 고음과 저음을 강조한 웅장감있는 음이 재생될수 있는 것으로 본 고안은 오디오 신호를 사용하는 제품에 이용될수 있는 것이다.And the output of the OP amplifier (OP 1), the resistance (R 6) as the inversion of the OP amplifier (OP 1) through a variable resistor (VR 1) - sound to be output via the OP amplifier (OP 1) as the feedback side () After the signal is adjusted through the variable resistor VR 1 , the amplifier SP is amplified through the non-inverting amplifying OP amplifier OP 2 connected to the capacitor C 6 and the resistors R 7 and R 8 . When applied to the sound can be reproduced with a magnificent sound that emphasizes the high and low frequencies, the present invention can be used in products that use audio signals.

이상에서와 같이 본 고안은 음성신호의 저역 부분을 검출하여 위상반전 및 증폭시켜 출력되게 구성한 것으로 사용자에게 더욱 생동감있는 음을 제공할수 있는 효과가 있는 것이다.As described above, the present invention is configured to detect and output the phase inversion and amplification of the low end portion of the voice signal, thereby providing a more lively sound to the user.

Claims (1)

음성중간주파 처리부(VIF)를 통과한 R, L채널 음성신호가 고음 처리되어 서라운드 되게한 서라운드 회로에 있어서, 음성 중간 주파처리부(VIF)의 저역 부분의 출력(P1), (P2)이 저항(R1), (R2) 및 콘덴서(C3)를 통하여 검출되게한 저역필터부(10)와, 상기한 저역필터부(10)의 출력이 바이어스저항(R3-R5)과 접속된 트랜지스터(Q1)를 통하여 반전되게한 위상반전부(20)와, 전원(B+)이 연동스위치(SW1)를 통하여 상기한 위상반전부(20)를 구동시켜 저음 확장 작용이 구동되게함과 동시에 발광다이오드(LED)를 구동시켜 이의 상태가 감지되게 구성한 저음 확장 구동 및 감지부(30)와, 상기한 위상 반전부(20)의 출력이 가변저항(VR1)과 접속된 비반전 증폭용 OP앰프(OP1)를 통하여 조정되게한 음성출력조정부(40)와 상기한 음성출력조정부(40)의 출력이 비반전 증폭용 OP앰프(OP2)를 통하여 스피커(SP)에 인가되게 한 증폭부(50)로 된 것을 특징으로한 음성저역확장회로.In a surround circuit in which the R and L channel voice signals that have passed through the voice intermediate frequency processing unit VIF are processed by high-pitched sound, the outputs P 1 and P 2 of the low frequency portion of the voice intermediate frequency processing unit VIF are The low pass filter unit 10, which is detected by the resistors R 1 , R 2 , and the condenser C 3 , and the output of the low pass filter unit 10 are connected to the bias resistors R 3 -R 5 . The phase inversion unit 20, which is inverted through the connected transistor Q 1 , and the power source B + , drive the phase inversion unit 20 through the interlock switch SW 1 to drive the bass expansion action. At the same time, the low-end expansion driving and sensing unit 30 configured to drive a light emitting diode (LED) to sense the state thereof, and the output of the phase inversion unit 20 connected to the variable resistor VR 1 . the inverted output of the amplifier OP to be adjusted through an amplifier (OP 1), the audio output adjusting section 40 and the voice output adjusting section 40 for a non-inverting amplifier for O An amplification unit (50) characterized by comprising an amplifier (50) which is applied to a speaker (SP) via a P amplifier (OP 2 ).
KR2019880004765U 1988-04-01 1988-04-01 Voice lowpass expanding circuit KR920002928Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880004765U KR920002928Y1 (en) 1988-04-01 1988-04-01 Voice lowpass expanding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880004765U KR920002928Y1 (en) 1988-04-01 1988-04-01 Voice lowpass expanding circuit

Publications (2)

Publication Number Publication Date
KR890022181U KR890022181U (en) 1989-11-03
KR920002928Y1 true KR920002928Y1 (en) 1992-05-08

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