JPH0444787U - - Google Patents
Info
- Publication number
- JPH0444787U JPH0444787U JP8649590U JP8649590U JPH0444787U JP H0444787 U JPH0444787 U JP H0444787U JP 8649590 U JP8649590 U JP 8649590U JP 8649590 U JP8649590 U JP 8649590U JP H0444787 U JPH0444787 U JP H0444787U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- line
- switch
- call
- sound source
- 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
- 238000004804 winding Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Description
図面は本考案の実施例の回路図である。
主な記号、１……電話システム、２……単独電
話機、３……ドアホン、１０２……抵抗、１０３
……トランス、１０５……チヤイム音源、１０６
……スイツチ、１０８……ドアホン回路。
The drawing is a circuit diagram of an embodiment of the present invention. Main symbols, 1...Telephone system, 2...Single telephone, 3...Doorphone, 102...Resistance, 103
...Trance, 105...Chiaim sound source, 106
...Switch, 108...Doorphone circuit.
Claims (1)
ステムに於いて、上記単独電話機が接続される通
話線の片線に２次巻線が挿入され、該２次巻線側
が巻線自体で、又は他の回路素子との並列接続で
低インピーダンスとされたトランスと、音源と、
上記トランスの１次巻線と音源との間に挿入され
、上記単独電話機が接続された回線以外の回線に
着信が生起したときに導通して音源からの信号音
を上記通話線に重畳させるように動作するスイツ
チで構成された通話中の単独電話機への着信音送
出回路。 ２ ドアホンが収容される電話システムであつて
、スイツチがドアホン回線への着信によつて導通
するスイツチである請求項１に記載の通話中の単
独電話機への着信音送出回路。[Claims for Utility Model Registration] 1. In a telephone system capable of accommodating a single telephone, a secondary winding is inserted into one wire of a telephone line to which the single telephone is connected, and the secondary winding A transformer whose wire side is made low impedance by the winding itself or by parallel connection with other circuit elements, a sound source,
It is inserted between the primary winding of the transformer and the sound source, and conducts when an incoming call occurs on a line other than the line to which the individual telephone is connected, so that the signal sound from the sound source is superimposed on the communication line. A circuit that sends a ring tone to a single telephone during a call, consisting of a switch that operates as follows. 2. The circuit for transmitting a ring tone to a single telephone during a call according to claim 1, wherein the telephone system accommodates a door phone, and the switch is a switch that becomes conductive when a call is received on the door phone line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8649590U JP2518651Y2 (en) | 1990-08-17 | 1990-08-17 | Ring tone sending circuit to a single telephone during a call |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8649590U JP2518651Y2 (en) | 1990-08-17 | 1990-08-17 | Ring tone sending circuit to a single telephone during a call |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0444787U true JPH0444787U (en) | 1992-04-16 |
| JP2518651Y2 JP2518651Y2 (en) | 1996-11-27 |
Family
ID=31818192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8649590U Expired - Lifetime JP2518651Y2 (en) | 1990-08-17 | 1990-08-17 | Ring tone sending circuit to a single telephone during a call |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2518651Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63125090U (en) * | 1987-02-06 | 1988-08-15 |
-
1990
- 1990-08-17 JP JP8649590U patent/JP2518651Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63125090U (en) * | 1987-02-06 | 1988-08-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2518651Y2 (en) | 1996-11-27 |
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