KR940013184A - Voice conversion circuit in multifunctional surround system using OPAMP - Google Patents

Voice conversion circuit in multifunctional surround system using OPAMP Download PDF

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Publication number
KR940013184A
KR940013184A KR1019920020494A KR920020494A KR940013184A KR 940013184 A KR940013184 A KR 940013184A KR 1019920020494 A KR1019920020494 A KR 1019920020494A KR 920020494 A KR920020494 A KR 920020494A KR 940013184 A KR940013184 A KR 940013184A
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KR
South Korea
Prior art keywords
pass filter
conversion circuit
voice conversion
low pass
resistor
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KR1019920020494A
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Korean (ko)
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KR970003040B1 (en
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이용원
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배순훈
대우전자 주식회사
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Priority to KR1019920020494A priority Critical patent/KR970003040B1/en
Publication of KR940013184A publication Critical patent/KR940013184A/en
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Publication of KR970003040B1 publication Critical patent/KR970003040B1/en

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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

본 고안은 TV의 서라운드 시스템에 관한것으로, 특히 고역 필터, 저역 필터 및 버퍼로 구성된 음성변환 회로와 스위치단을 삽입하여 평활한 주파수 특성을 갖도록 하고, 저음 강조 및 음의 입체감을 충실히 재현 시킬수 있도록 음질을 다양화 할수 있게한 것으로 종래의 음성신호의 합성 및 차에 의한 음 검출신호이기 때문에 음의 현장감이 떨어지며 음질의 단일로 소비자가 선택할수 없는 문제점이 있었으나 본 발명은 저역 필터, 고역과 저역 필터 및 버퍼로 구성된 음성변환 회로와 상기 음성 변환 회로로 부터 출력된 음성신호를 선택할수 있게한 스위치단을 삽입하여 평활한 주파수 특성을 갖도록 하고, 저음 강조 및 음의 입체감을 충실히 재현 시킬수 있도록 음질을 다양화 할수 있게 한 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로를 제공하는데 있다.The present invention relates to a surround system of a TV. In particular, a voice conversion circuit composed of a high pass filter, a low pass filter, and a buffer is inserted to have a smooth frequency characteristic by inserting a switch stage, and sound quality can be faithfully reproduced with bass emphasis and sound stereoscopic. However, the present invention has a problem in that the presence of sound is reduced and the sound quality cannot be selected by the consumer as a single sound quality because it is a sound detection signal due to the synthesis and difference of a conventional voice signal, but the present invention provides a low pass filter, a high pass filter and a low pass filter. A voice conversion circuit composed of a buffer and a switch stage for selecting a voice signal output from the voice conversion circuit are inserted to have a smooth frequency characteristic, and the sound quality is diversified to faithfully reproduce the bass emphasis and sound stereoscopic feeling. Voice conversion in multifunctional surround systems using OPAMP enabled To provide a circuit.

Description

오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로Voice conversion circuit in multifunctional surround system using OPAMP

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성변환 회로도.2 is a voice conversion circuit diagram of a multifunctional surround system using the OPAMP of the present invention.

Claims (8)

좌, 우 음성신호출력단(R, L)으로 부터 일단의 저항들로 이루어진 부하 저항단(40), 상기 저항단(40)으로 부터 저주파 성분을 출력시키는 로우 패스 필터부(10)와, 저주파신호와 고조파신호를 합성하여 출력하는 하이로우패스 필터부(20)와, 동등한 이득을 가질수 있게한 좌우 음성신호의 합성신호를 출력하는 버퍼부(30)와, 마이콤의 제어 신호(C1,C2)로 다수개의 입력단자를 통해 입력된 다수개의 서라운드 신호를 선택할수 있게한 스위칭부(50)와, 상기 스위칭부(50)로 부터 시간지연용 딜레이 회로부(60)로 구성된 것을 특징으로 하는 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로.Load resistor stage 40 consisting of a series of resistors from the left and right voice signal output terminals R and L, a low pass filter unit 10 for outputting low frequency components from the resistor stage 40, and a low frequency signal. And a high low pass filter unit 20 for synthesizing and outputting harmonic signals, a buffer unit 30 for outputting a synthesized signal of left and right audio signals to have an equal gain, and control signals C1 and C2 of the microcomputer. Using an op amp, characterized in that consisting of a switching unit 50 for selecting a plurality of surround signals input through a plurality of input terminals, and a delay circuit 60 for time delay from the switching unit 50 Voice conversion circuit in multifunctional surround system. 제1항에 있어서, 상기의 로우패스 필터부(10)는 제1차 로우 패스 필터(11)와, 제2로우패스 필터(12)와 오피엠프(A)로 구성되는 것을 특징으로하는 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로.The op amp of claim 1, wherein the low pass filter unit 10 comprises a first order low pass filter 11, a second low pass filter 12, and an operational amplifier (A). Voice conversion circuit in multifunctional surround system using 제2항에 있어서, 상기의 제1차 로우 패스 필터는 저항(R3), 콘덴서(C1)로 이루어진 것을 특징으로하는 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로.The voice conversion circuit of claim 2, wherein the first low pass filter comprises a resistor (R3) and a capacitor (C1). 제2항에 있어서, 상기의 제2차 로우패스 필터는 저항(R4), 콘덴서(C2)로 이루어진 것을 특징으로하는 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로.The voice conversion circuit of claim 2, wherein the second low pass filter comprises a resistor (R4) and a capacitor (C2). 제1항에 있어서, 상기의 로우, 하이 패스 필터부(20)는 하이패스 필터(21)와, 로우패스 필터(22)와 오피엠프(B)로 이루어져 입력된 음의 입체감을 줄수 있도록 합성신호를 출력토록 하는 것을 특징으로하는 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로.According to claim 1, wherein the low, high pass filter unit 20 is composed of a high pass filter 21, a low pass filter 22 and the op amp (B) synthesized signal to give a three-dimensional sense of the input sound A voice conversion circuit in a multifunctional surround system using an OPAMP, characterized in that for outputting. 제5항에 있어서, 상기의 하이패스 필터는 저항(R6)와, 콘덴서(C3), 저항(R8)으로 이루어진 것을 특징으로 하는 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로.6. The voice conversion circuit of claim 5, wherein the high pass filter comprises a resistor (R6), a capacitor (C3), and a resistor (R8). 제5항에 있어서, 상기의 로우패스 필터는 저항(R7), 콘덴서(C4)로 이루어진 것을 특징으로하는 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로.The voice conversion circuit of claim 5, wherein the low pass filter comprises a resistor (R7) and a capacitor (C4). 제1항에 있어서, 상기의 버퍼부(30)는 동등한 이득을 가질수 있도록 저항(R11,R12)와, 오피엠프(C)로 구성된 것을 특징으로하는 오피엠프를 사용한 다기능 서라운드 시스템에서의 음성 변환 회로.The voice conversion circuit of claim 1, wherein the buffer unit 30 comprises resistors R11 and R12 and an op amp C so as to have an equal gain. . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920020494A 1992-11-03 1992-11-03 A circuit for converting sound of a surround system KR970003040B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920020494A KR970003040B1 (en) 1992-11-03 1992-11-03 A circuit for converting sound of a surround system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920020494A KR970003040B1 (en) 1992-11-03 1992-11-03 A circuit for converting sound of a surround system

Publications (2)

Publication Number Publication Date
KR940013184A true KR940013184A (en) 1994-06-25
KR970003040B1 KR970003040B1 (en) 1997-03-13

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KR1019920020494A KR970003040B1 (en) 1992-11-03 1992-11-03 A circuit for converting sound of a surround system

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