JPS6351624B2 - - Google Patents
Info
- Publication number
- JPS6351624B2 JPS6351624B2 JP8276982A JP8276982A JPS6351624B2 JP S6351624 B2 JPS6351624 B2 JP S6351624B2 JP 8276982 A JP8276982 A JP 8276982A JP 8276982 A JP8276982 A JP 8276982A JP S6351624 B2 JPS6351624 B2 JP S6351624B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- power supply
- ringing
- ringer
- 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
- 230000005236 sound signal Effects 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 240000008881 Oenanthe javanica Species 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 240000001829 Catharanthus roseus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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 |
|---|---|---|---|
| JP8276982A JPS58198948A (ja) | 1982-05-17 | 1982-05-17 | 電話機用ト−ンリンガ回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8276982A JPS58198948A (ja) | 1982-05-17 | 1982-05-17 | 電話機用ト−ンリンガ回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58198948A JPS58198948A (ja) | 1983-11-19 |
| JPS6351624B2 true JPS6351624B2 (enrdf_load_stackoverflow) | 1988-10-14 |
Family
ID=13783637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8276982A Granted JPS58198948A (ja) | 1982-05-17 | 1982-05-17 | 電話機用ト−ンリンガ回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58198948A (enrdf_load_stackoverflow) |
-
1982
- 1982-05-17 JP JP8276982A patent/JPS58198948A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58198948A (ja) | 1983-11-19 |
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