KR970023255A - V.C.R audio noise reduction circuit - Google Patents

V.C.R audio noise reduction circuit Download PDF

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Publication number
KR970023255A
KR970023255A KR1019950038083A KR19950038083A KR970023255A KR 970023255 A KR970023255 A KR 970023255A KR 1019950038083 A KR1019950038083 A KR 1019950038083A KR 19950038083 A KR19950038083 A KR 19950038083A KR 970023255 A KR970023255 A KR 970023255A
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KR
South Korea
Prior art keywords
audio
output terminal
input terminal
operational amplifier
audio signal
Prior art date
Application number
KR1019950038083A
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Korean (ko)
Inventor
윤희성
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950038083A priority Critical patent/KR970023255A/en
Publication of KR970023255A publication Critical patent/KR970023255A/en

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Abstract

본 발명은 브이.씨.알의 오디오 노이즈 제거회로에 관한 것으로, 오디오 헤드(300)의 출력단에 접속되는 가변 저항(Rv)와, 음(-)의 입력단은 가변 저항(Rv)의 출력단과 연결되고 양(+)의 입력단은 그라운드되며 그 출력단은 오디오 신호 출력단자(400)와 접속되는 연산 증폭기(210)와, 연산 증폭기(210)와 병렬 접속되는 가변 콘덴서(Cv)를 포함하고 구성되어, 브이.씨.알에서 오디오 신호 녹화 재생시 오디오 헤드로 유입되는 신호성분에 의해 발생하는 노이즈 성분을 제거하므로써 브이.씨.알에서의 오디오 신호 재생 성능을 개선할 수 있도록 한 것이다.The present invention relates to an audio noise canceling circuit of V.C.al, wherein a variable resistor (Rv) connected to an output terminal of an audio head 300 and a negative input terminal are connected to an output terminal of a variable resistor (Rv). And a positive input terminal is grounded, and the output terminal includes an operational amplifier 210 connected to the audio signal output terminal 400 and a variable capacitor Cv connected in parallel with the operational amplifier 210. It is possible to improve the performance of audio signal reproduction in VC by eliminating the noise component caused by the signal component flowing into the audio head when recording and reproducing the audio signal in VC.

Description

브이.씨.알의 오디오 노이즈 제거회로V.C.R audio noise reduction circuit

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

제4도는 본 발명의 바람직한 실시예에 따른 오디오 노이즈 제거 회로를 나타낸 도면.4 illustrates an audio noise canceling circuit according to a preferred embodiment of the present invention.

Claims (2)

브이.씨.알에서 오디오 신호 녹화 재생시 오디오 헤드(300)에 유입되는 신호성분에 의해 발생하는 노이즈 신호를 제거하기 위한 브이.씨.알의 오디오 노이즈 제거회로(200)에 있어서, 상기 오디오 헤드(300)에 직렬 접속되는 가변 저항(Rv)과; 음(-)의 입력단은 상기 저항(Rv)과 직렬 접속되고 양(+)의 입력단은 그라운드(ground)로 접속되며, 그 출력단은 오디오 신호 출력단자(400)와 접속되는 연산 증폭기(operational amplifirer: 210)와; 상기 연산 증폭기(210)의 음의 입력단 및 상기 연산 증폭기의 출력단과 접속되는 가변 콘덴서(Cv)를 포함하는 브이.씨.알의 오디오 노이즈 제거회로.In the V.R.al audio noise canceling circuit 200 for removing a noise signal generated by a signal component flowing into the audio head 300 when the audio signal is recorded and reproduced in the V.R. A variable resistor Rv connected in series with 300; A negative input terminal is connected in series with the resistor Rv, a positive input terminal is connected to ground, and an output terminal thereof is connected to the audio signal output terminal 400. 210; A V. C. audio noise reduction circuit comprising a variable capacitor (Cv) connected to the negative input terminal of the operational amplifier 210 and the output terminal of the operational amplifier. 제1항에 있어서, 상기 회로(200)는 저역 통과 필터(low pass filter)로 작용하는 것을 특징으로 하는 브이.씨.알의 오디오 노이즈 제거회로.The V.C.R.audio noise canceling circuit according to claim 1, wherein the circuit (200) acts as a low pass filter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950038083A 1995-10-30 1995-10-30 V.C.R audio noise reduction circuit KR970023255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950038083A KR970023255A (en) 1995-10-30 1995-10-30 V.C.R audio noise reduction circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950038083A KR970023255A (en) 1995-10-30 1995-10-30 V.C.R audio noise reduction circuit

Publications (1)

Publication Number Publication Date
KR970023255A true KR970023255A (en) 1997-05-30

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ID=66584063

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950038083A KR970023255A (en) 1995-10-30 1995-10-30 V.C.R audio noise reduction circuit

Country Status (1)

Country Link
KR (1) KR970023255A (en)

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