KR970023255A - V.C.R audio noise reduction circuit - Google Patents
V.C.R audio noise reduction circuit Download PDFInfo
- 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
- Authority
- KR
- South Korea
- Prior art keywords
- audio
- output terminal
- input terminal
- operational amplifier
- audio signal
- Prior art date
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- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
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
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)
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 |
Family
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) |
-
1995
- 1995-10-30 KR KR1019950038083A patent/KR970023255A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |