JPS62158962U - - Google Patents
Info
- Publication number
- JPS62158962U JPS62158962U JP4592086U JP4592086U JPS62158962U JP S62158962 U JPS62158962 U JP S62158962U JP 4592086 U JP4592086 U JP 4592086U JP 4592086 U JP4592086 U JP 4592086U JP S62158962 U JPS62158962 U JP S62158962U
- Authority
- JP
- Japan
- Prior art keywords
- communication
- call
- circuit network
- making
- controlled
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Description
図は本考案による電話機の通話レベル制御回路
を実施したボタン電話装置のブロツク図である。
１……主装置、２，３……電話機、７……通話
電流を供給する電源、１０……通話回路網、１１
……通話電流検出回路（遠近判別回路）、２０…
…状態決定回路（オワ回路）。
The figure is a block diagram of a button telephone device implementing a telephone conversation level control circuit according to the present invention. DESCRIPTION OF SYMBOLS 1...Main device, 2, 3...Telephone, 7...Power source for supplying communication current, 10...Communication circuit network, 11
...Speech current detection circuit (far and near discrimination circuit), 20...
...State determination circuit (Owa circuit).
Claims (1)
通話電流の大小に応じて平衡回路の選択および／
または通話音量が加減できるようにした通話回路
網を備え、局線通話に際して通話回路網を通話電
流によつて制御し、内線通話に際しては通話回路
網を通話電流にかかわらず一定値に制御するよう
に構成したことを特徴とする電話機の通話レベル
制御回路。 A button telephone device that selects a balanced circuit and/or
Or, it is equipped with a communication circuit network that allows the volume of communication to be adjusted, and when making a call on a central office line, the communication circuit network is controlled by the communication current, and when making an extension call, the communication circuit network is controlled to a constant value regardless of the communication current. A call level control circuit for a telephone, characterized in that it is configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986045920U JPH0352051Y2 (en) | 1986-03-28 | 1986-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986045920U JPH0352051Y2 (en) | 1986-03-28 | 1986-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62158962U true JPS62158962U (en) | 1987-10-08 |
| JPH0352051Y2 JPH0352051Y2 (en) | 1991-11-11 |
Family
ID=30865099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986045920U Expired JPH0352051Y2 (en) | 1986-03-28 | 1986-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0352051Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157374U (en) * | 1983-04-04 | 1984-10-22 | 日本電気株式会社 | button telephone device |
-
1986
- 1986-03-28 JP JP1986045920U patent/JPH0352051Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157374U (en) * | 1983-04-04 | 1984-10-22 | 日本電気株式会社 | button telephone device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0352051Y2 (en) | 1991-11-11 |