JPH0429222U - - Google Patents
Info
- Publication number
- JPH0429222U JPH0429222U JP7046090U JP7046090U JPH0429222U JP H0429222 U JPH0429222 U JP H0429222U JP 7046090 U JP7046090 U JP 7046090U JP 7046090 U JP7046090 U JP 7046090U JP H0429222 U JPH0429222 U JP H0429222U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- digital
- standard
- section
- control
- 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
- 230000005236 sound signal Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は従来の音声信号レベル可変回路の一例を
示すブロツク図である。
１……電圧制御増幅器（ＶＣＡ）、２……エン
コーダ、３……電圧設定部、４……標準電圧設定
部、５……リセツト部、６……Ｄ−Ａ変換部、７
……警報部、１１……入力端子、１２……出力端
子、１３……制御信号端子、２１……調整つまみ
。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing an example of a conventional audio signal level variable circuit. DESCRIPTION OF SYMBOLS 1... Voltage control amplifier (VCA), 2... Encoder, 3... Voltage setting section, 4... Standard voltage setting section, 5... Reset section, 6... D-A conversion section, 7
... Alarm section, 11 ... Input terminal, 12 ... Output terminal, 13 ... Control signal terminal, 21 ... Adjustment knob.
Claims (1)
変する電圧制御増幅器と、調整つまみの変位量に
応じたデイジタル電圧データを出力するエンコー
ダと、前記デイジタル電圧データを保持する電圧
設定部と、前記電圧制御増幅部を標準動作状態と
するデイジタル標準電圧データを保持する標準電
圧設定部と、外部からの制御信号に応じて前記電
圧設定部が保持しているデイジタル電圧データを
前記デイジタル標準電圧データに置換えるリセツ
ト部と、前記電圧設定部が保持しているデイジタ
ルデータを受けてアナログ電圧を生成し前記制御
電圧として前記電圧制御増幅器へ出力するＤ−Ａ
変換部とを備えたことを特徴とする音声信号レベ
ル可変回路。 ２ 請求項１記載の音声信号レベル可変回路にお
いて、前記外部からの制御信号に応じて警報を発
する警報部を前記エンコーダの調整つまみの少な
くとも近辺に設けたことを特徴とする音声信号レ
ベル可変回路。[Claims for Utility Model Registration] 1. A voltage control amplifier that varies the output level of an audio signal according to a control voltage, an encoder that outputs digital voltage data according to the amount of displacement of an adjustment knob, and holds the digital voltage data. a standard voltage setting section that holds digital standard voltage data for setting the voltage control amplification section in a standard operating state; and a standard voltage setting section that holds digital standard voltage data that sets the voltage control amplification section in a standard operating state, and digital voltage data held by the voltage setting section in response to an external control signal. a reset section that replaces the voltage with the digital standard voltage data; and a D-A that receives the digital data held by the voltage setting section, generates an analog voltage, and outputs it as the control voltage to the voltage control amplifier.
An audio signal level variable circuit comprising: a conversion section. 2. The audio signal level variable circuit according to claim 1, further comprising an alarm unit that issues an alarm in response to the external control signal, provided at least near the adjustment knob of the encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7046090U JPH0429222U (en) | 1990-07-02 | 1990-07-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7046090U JPH0429222U (en) | 1990-07-02 | 1990-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0429222U true JPH0429222U (en) | 1992-03-09 |
Family
ID=31606636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7046090U Pending JPH0429222U (en) | 1990-07-02 | 1990-07-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0429222U (en) |
-
1990
- 1990-07-02 JP JP7046090U patent/JPH0429222U/ja active Pending
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