JPS5420365B2 - - Google Patents
Info
- Publication number
- JPS5420365B2 JPS5420365B2 JP6754475A JP6754475A JPS5420365B2 JP S5420365 B2 JPS5420365 B2 JP S5420365B2 JP 6754475 A JP6754475 A JP 6754475A JP 6754475 A JP6754475 A JP 6754475A JP S5420365 B2 JPS5420365 B2 JP S5420365B2
- Authority
- JP
- Japan
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6754475A JPS51144106A (en) | 1975-06-06 | 1975-06-06 | Tone ringer telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6754475A JPS51144106A (en) | 1975-06-06 | 1975-06-06 | Tone ringer telephone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS51144106A JPS51144106A (en) | 1976-12-10 |
| JPS5420365B2 true JPS5420365B2 (en:Method) | 1979-07-23 |
Family
ID=13348002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6754475A Granted JPS51144106A (en) | 1975-06-06 | 1975-06-06 | Tone ringer telephone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS51144106A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2506967Y2 (ja) * | 1992-02-20 | 1996-08-14 | ナカ電子株式会社 | 着信ベル光表示装置 |
-
1975
- 1975-06-06 JP JP6754475A patent/JPS51144106A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51144106A (en) | 1976-12-10 |