JPH0163300U - - Google Patents
Info
- Publication number
- JPH0163300U JPH0163300U JP1987156783U JP15678387U JPH0163300U JP H0163300 U JPH0163300 U JP H0163300U JP 1987156783 U JP1987156783 U JP 1987156783U JP 15678387 U JP15678387 U JP 15678387U JP H0163300 U JPH0163300 U JP H0163300U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- output
- level adjuster
- signal
- amplifies
- 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 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案実施例に係る屋外拡声装置の構
成例を示すブロツク図、第２図はスピーカー取付
例を示す外観図である。
１：マイク、２：第一の増幅器、３：レベル調
整器、４：第二の増幅器、５：光検出器、６：制
御器、７：スピーカ。
FIG. 1 is a block diagram showing a configuration example of an outdoor loudspeaker system according to an embodiment of the present invention, and FIG. 2 is an external view showing an example of speaker installation. 1: Microphone, 2: First amplifier, 3: Level adjuster, 4: Second amplifier, 5: Photodetector, 6: Controller, 7: Speaker.
Claims (1)
この第一の増幅器から出力された信号を入力する
レベル調整器と、昼間と夜間を判別する光り検出
器と、この光検出器からの信号にもとづいて上記
レベル調整器の出力を制御する制御器と、上記レ
ベル調整器からの出力を入力し、増幅して出力す
る第二の増幅器と、この第二の増幅器の出力側接
続したスピーカを具備したことを特徴とする屋外
拡声装置。 a first amplifier that amplifies and outputs the audio signal;
A level adjuster that inputs the signal output from the first amplifier, a light detector that distinguishes between daytime and nighttime, and a controller that controls the output of the level adjuster based on the signal from this photodetector. An outdoor loudspeaker system comprising: a second amplifier that receives, amplifies and outputs the output from the level adjuster; and a speaker connected to the output side of the second amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987156783U JPH0163300U (en) | 1987-10-15 | 1987-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987156783U JPH0163300U (en) | 1987-10-15 | 1987-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0163300U true JPH0163300U (en) | 1989-04-24 |
Family
ID=31435634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987156783U Pending JPH0163300U (en) | 1987-10-15 | 1987-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0163300U (en) |
-
1987
- 1987-10-15 JP JP1987156783U patent/JPH0163300U/ja active Pending
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