JPS6222297B2 - - Google Patents
Info
- Publication number
- JPS6222297B2 JPS6222297B2 JP16918281A JP16918281A JPS6222297B2 JP S6222297 B2 JPS6222297 B2 JP S6222297B2 JP 16918281 A JP16918281 A JP 16918281A JP 16918281 A JP16918281 A JP 16918281A JP S6222297 B2 JPS6222297 B2 JP S6222297B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- dial
- transistor
- telephone
- voltage
- 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.)
- Expired
Links
- 238000010586 diagram Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 2
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 JPS5869154A (ja) | 1983-04-25 |
| JPS6222297B2 true JPS6222297B2 (cs) | 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 (cs) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0326702Y2 (cs) * | 1985-04-24 | 1991-06-10 |
-
1981
- 1981-10-21 JP JP16918281A patent/JPS5869154A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5869154A (ja) | 1983-04-25 |
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