JPS61195147U - - Google Patents
Info
- Publication number
- JPS61195147U JPS61195147U JP5716885U JP5716885U JPS61195147U JP S61195147 U JPS61195147 U JP S61195147U JP 5716885 U JP5716885 U JP 5716885U JP 5716885 U JP5716885 U JP 5716885U JP S61195147 U JPS61195147 U JP S61195147U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- dial
- voltage
- display
- polarity
- 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
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の電話機の表示回路図、第２図
Ａ〜第２図Ｃは本考案の各部の信号波形図である
。
８……第２整流回路、９……表示回路、１０ａ
……発光ダイオード、１０ｂ……ツエーナダイオ
ード、１２……第２表示トランジスタ、１３……
ダイヤルパルス信号発生回路、１７……開閉トラ
ンジスタ、１８……スピーチ回路、２２……増幅
回路。
FIG. 1 is a display circuit diagram of a telephone according to the present invention, and FIGS. 2A to 2C are signal waveform diagrams of various parts of the present invention. 8... Second rectifier circuit, 9... Display circuit, 10a
...Light emitting diode, 10b...Zena diode, 12...Second display transistor, 13...
Dial pulse signal generation circuit, 17... open/close transistor, 18... speech circuit, 22... amplifier circuit.
Claims (1)
整流回路と、ダイヤルパルス信号発生回路より生
じるダイヤルパルス信号にて開閉され前記極性決
定された電圧をダイヤル信号に変換する第１スイ
ツチング素子と、前記ダイヤルパルス信号発生回
路より発生される信号にて制御される表示トラン
ジスタと、該表示トランジスタを介して前記整流
回路の電圧が印加される表示素子と、該表示素子
に並列接続された定電圧素子と、前記ダイヤル信
号の発生時極性決定された整流回路の出力側の電
圧が音声側回路に供給されるのを阻止する第２ス
イツチング素子とよりなる電話機の表示回路。 a rectifier circuit that determines the polarity of the voltage supplied from the telephone line; a first switching element that is opened and closed by a dial pulse signal generated from a dial pulse signal generating circuit and converts the polarity-determined voltage into a dial signal; and the dial. a display transistor controlled by a signal generated by a pulse signal generation circuit, a display element to which the voltage of the rectifier circuit is applied via the display transistor, and a constant voltage element connected in parallel to the display element; A display circuit for a telephone set, comprising a second switching element that blocks the voltage on the output side of the rectifier circuit whose polarity has been determined when the dial signal is generated from being supplied to the audio side circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5716885U JPH036056Y2 (en) | 1985-04-17 | 1985-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5716885U JPH036056Y2 (en) | 1985-04-17 | 1985-04-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61195147U true JPS61195147U (en) | 1986-12-05 |
| JPH036056Y2 JPH036056Y2 (en) | 1991-02-15 |
Family
ID=30581445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5716885U Expired JPH036056Y2 (en) | 1985-04-17 | 1985-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036056Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002152182A (en) * | 2000-11-10 | 2002-05-24 | Taiyo Musen Co Ltd | Data transmission system of radio buoy |
-
1985
- 1985-04-17 JP JP5716885U patent/JPH036056Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036056Y2 (en) | 1991-02-15 |
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