JPS58104014U - Automatic volume correction device - Google Patents
Automatic volume correction deviceInfo
- Publication number
- JPS58104014U JPS58104014U JP30982U JP30982U JPS58104014U JP S58104014 U JPS58104014 U JP S58104014U JP 30982 U JP30982 U JP 30982U JP 30982 U JP30982 U JP 30982U JP S58104014 U JPS58104014 U JP S58104014U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- correction device
- automatic volume
- volume correction
- capacitor connected
- 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.)
- Pending
Links
Landscapes
- Control Of Amplification And Gain Control (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例を示すブロック図、第２図は本考案の一
実施例を示すブロック図である。
主要部分の符号の説明、１・・・マイクロフォン、４・
・・電子ボリューム、５・・・検波回路、６・・・対数
アンプ、７・・・積分回路。FIG. 1 is a block diagram showing a conventional example, and FIG. 2 is a block diagram showing an embodiment of the present invention. Explanation of symbols of main parts, 1...Microphone, 4.
...electronic volume, 5...detection circuit, 6...logarithmic amplifier, 7...integrator circuit.
Claims (1)
る手段と、前記直流電圧を入力とする対数アンプと、前
記対数アンプの出力を積分する積分回路と、前記積分回
路の出力に応じて所定入力信号の信号レベルを制御する
手段とを備え、前記積分回路は、演算増幅器と、前記演
算増幅器の入力端と出力端との間に接続された第１の抵
抗と、゛前記第１の抵抗と並列接続された第１のコンデ
ンサと、該入力端と出力端との間に互いに直列接続され
た第２の抵抗及び第２のコンデンサと、前記−第２の抵
抗と並列接続された一方向性素子とからなることを特徴
とする自動音量補正装置。means for detecting noise and generating a DC voltage according to the sound pressure of the noise; a logarithmic amplifier receiving the DC voltage; an integrating circuit for integrating the output of the logarithmic amplifier; means for controlling the signal level of a predetermined input signal, the integrating circuit comprising: an operational amplifier; a first resistor connected between an input terminal and an output terminal of the operational amplifier; a first capacitor connected in parallel with the resistor, a second resistor and a second capacitor connected in series with each other between the input terminal and the output terminal, and a second resistor and a second capacitor connected in parallel with the second resistor. An automatic volume correction device comprising a unidirectional element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30982U JPS58104014U (en) | 1982-01-05 | 1982-01-05 | Automatic volume correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30982U JPS58104014U (en) | 1982-01-05 | 1982-01-05 | Automatic volume correction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58104014U true JPS58104014U (en) | 1983-07-15 |
Family
ID=30013393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30982U Pending JPS58104014U (en) | 1982-01-05 | 1982-01-05 | Automatic volume correction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58104014U (en) |
-
1982
- 1982-01-05 JP JP30982U patent/JPS58104014U/en active Pending
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