JPS62171236U - - Google Patents
Info
- Publication number
- JPS62171236U JPS62171236U JP5764186U JP5764186U JPS62171236U JP S62171236 U JPS62171236 U JP S62171236U JP 5764186 U JP5764186 U JP 5764186U JP 5764186 U JP5764186 U JP 5764186U JP S62171236 U JPS62171236 U JP S62171236U
- Authority
- JP
- Japan
- Prior art keywords
- incoming call
- telephone
- detection circuit
- response
- telephone line
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 1
Description
第１図はこの考案の一実施例に係る電話機用着
信報知装置の回路図、第２図および第３図はそれ
ぞれ第１図の電話機用着信報知装置における着信
時の動作および該装置に接続された電話機からの
発信動作時の動作を示す波形図である。
４……局線極性切換スイツチ、５……着信信号
整流回路、７……着信検出回路、９……着信発光
表示回路、１３……メロデイ音発振回路、２３…
…電話機、Ｌ１，Ｌ２……電話回線。
FIG. 1 is a circuit diagram of an incoming call notification device for a telephone according to an embodiment of the present invention, and FIGS. 2 and 3 respectively show the operation of the incoming call notification device for a telephone shown in FIG. FIG. 3 is a waveform diagram showing an operation when making a call from a telephone set. 4... Office line polarity changeover switch, 5... Incoming signal rectifier circuit, 7... Incoming call detection circuit, 9... Incoming light emitting display circuit, 13... Melody sound oscillation circuit, 23...
...Telephone, L1, L2...telephone line.
Claims (1)
号を受信して着信を報知する電話機用着信報知装
置において、前記呼出信号を極性反転して受信し
、該受信した呼出信号を整流して着信を検出する
検出回路と、該検出回路の検出動作に応じて前記
電話回線に接続されている電話機の着信表示音の
発生を停止させる停止手段と、前記検出回路の検
出動作に応じて着信を報知するためのメロデイ音
を発生するメロデイ音発生手段と、前記検出回路
の検出動作に応じて着信を表示するための発光表
示を行なう発光表示手段とを有することを特徴と
する電話機用着信報知装置。 An incoming call notification device for a telephone that is connected to a telephone line and receives a ringing signal from the telephone line to notify an incoming call. a detection circuit for detecting a call; a stop means for stopping generation of an incoming call display sound of a telephone connected to the telephone line in response to a detection operation of the detection circuit; and a stop means for notifying an incoming call in response to a detection operation of the detection circuit. 1. An incoming call notification device for a telephone, comprising: a melody sound generating means for generating a melody sound for a call; and a light emitting display means for performing a light emitting display to indicate an incoming call in response to a detection operation of the detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5764186U JPS62171236U (en) | 1986-04-18 | 1986-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5764186U JPS62171236U (en) | 1986-04-18 | 1986-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62171236U true JPS62171236U (en) | 1987-10-30 |
Family
ID=30887538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5764186U Pending JPS62171236U (en) | 1986-04-18 | 1986-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01288146A (en) * | 1988-05-16 | 1989-11-20 | Nec Corp | Speaker for wired broadcast telephone set |
-
1986
- 1986-04-18 JP JP5764186U patent/JPS62171236U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01288146A (en) * | 1988-05-16 | 1989-11-20 | Nec Corp | Speaker for wired broadcast telephone set |