JPS6440992U - - Google Patents
Info
- Publication number
- JPS6440992U JPS6440992U JP13647987U JP13647987U JPS6440992U JP S6440992 U JPS6440992 U JP S6440992U JP 13647987 U JP13647987 U JP 13647987U JP 13647987 U JP13647987 U JP 13647987U JP S6440992 U JPS6440992 U JP S6440992U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- variable gain
- gain amplifier
- earphone
- inputs
- 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
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案に係る音響出力装置を示す構成
回路図、第２図は第１図装置の動作を説明するた
めの図、第３図は従来の音響出力装置の動作を説
明するための図である。
１……信号回路、２……可変ゲイン増幅器、３
……イヤーホン、４……マイクロホン。
FIG. 1 is a configuration circuit diagram showing the sound output device according to the present invention, FIG. 2 is a diagram for explaining the operation of the device shown in FIG. 1, and FIG. 3 is a diagram for explaining the operation of the conventional sound output device. It is a diagram. 1...Signal circuit, 2...Variable gain amplifier, 3
...Earphones, 4...Microphones.
Claims (1)
の出力を入力する可変ゲイン増幅器と、この可変
ゲイン増幅器の出力信号を入力するイヤーホンと
、このイヤーホンに取付けられたマイクロホンと
を備え、マイクロホンの出力に関連する信号で可
変ゲイン増幅器のゲインを変化させるように構成
した音響出力装置。 It includes a signal circuit that outputs an acoustic signal, a variable gain amplifier that inputs the output of this signal circuit, an earphone that inputs the output signal of this variable gain amplifier, and a microphone attached to this earphone. A sound output device configured to vary the gain of a variable gain amplifier with an associated signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13647987U JPS6440992U (en) | 1987-09-07 | 1987-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13647987U JPS6440992U (en) | 1987-09-07 | 1987-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6440992U true JPS6440992U (en) | 1989-03-10 |
Family
ID=31397029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13647987U Pending JPS6440992U (en) | 1987-09-07 | 1987-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6440992U (en) |
-
1987
- 1987-09-07 JP JP13647987U patent/JPS6440992U/ja active Pending