JPH0439722U - - Google Patents
Info
- Publication number
- JPH0439722U JPH0439722U JP8242590U JP8242590U JPH0439722U JP H0439722 U JPH0439722 U JP H0439722U JP 8242590 U JP8242590 U JP 8242590U JP 8242590 U JP8242590 U JP 8242590U JP H0439722 U JPH0439722 U JP H0439722U
- Authority
- JP
- Japan
- Prior art keywords
- noise
- intercom
- built
- utility
- level
- 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
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000007257 malfunction Effects 0.000 claims 1
- 238000005316 response function Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本装置の系統図である。
１……音声マイク、２……音量調整部、３……
電力増幅部、４……スピーカ、５……接続線、６
……波形整形部、７……比較部、８……騒音感知
マイク。
電力増幅部、４……スピーカ、５……接続線、６
……波形整形部、７……比較部、８……騒音感知
マイク。
Claims (1)
- 【実用新案登録請求の範囲】 １ 騒音の大きさに合わせた出力に自動調節する
音声増幅装置。 ２ 入力回路不動作における警告機能。 ３ 応答機能組込みなどを付加してのインターホ
ン。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8242590U JPH0439722U (ja) | 1990-08-02 | 1990-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8242590U JPH0439722U (ja) | 1990-08-02 | 1990-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0439722U true JPH0439722U (ja) | 1992-04-03 |
Family
ID=31629226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8242590U Pending JPH0439722U (ja) | 1990-08-02 | 1990-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439722U (ja) |
-
1990
- 1990-08-02 JP JP8242590U patent/JPH0439722U/ja active Pending