JPS5869154A - 押しボタン式ｄｐ信号送出ダイヤルのパルス発生回路 - Google Patents
押しボタン式ｄｐ信号送出ダイヤルのパルス発生回路Info
- Publication number
- JPS5869154A JPS5869154A JP16918281A JP16918281A JPS5869154A JP S5869154 A JPS5869154 A JP S5869154A JP 16918281 A JP16918281 A JP 16918281A JP 16918281 A JP16918281 A JP 16918281A JP S5869154 A JPS5869154 A JP S5869154A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- dial
- voltage
- terminal
- transistor
- 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
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16918281A JPS5869154A (ja) | 1981-10-21 | 1981-10-21 | 押しボタン式ｄｐ信号送出ダイヤルのパルス発生回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16918281A JPS5869154A (ja) | 1981-10-21 | 1981-10-21 | 押しボタン式ｄｐ信号送出ダイヤルのパルス発生回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5869154A true JPS5869154A (ja) | 1983-04-25 |
| JPS6222297B2 JPS6222297B2 (enrdf_load_stackoverflow) | 1987-05-18 |
Family
ID=15881757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16918281A Granted JPS5869154A (ja) | 1981-10-21 | 1981-10-21 | 押しボタン式ｄｐ信号送出ダイヤルのパルス発生回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5869154A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195149U (enrdf_load_stackoverflow) * | 1985-04-24 | 1986-12-05 |
-
1981
- 1981-10-21 JP JP16918281A patent/JPS5869154A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195149U (enrdf_load_stackoverflow) * | 1985-04-24 | 1986-12-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6222297B2 (enrdf_load_stackoverflow) | 1987-05-18 |