JPS58198948A - 電話機用ト−ンリンガ回路 - Google Patents
電話機用ト−ンリンガ回路Info
- Publication number
- JPS58198948A JPS58198948A JP8276982A JP8276982A JPS58198948A JP S58198948 A JPS58198948 A JP S58198948A JP 8276982 A JP8276982 A JP 8276982A JP 8276982 A JP8276982 A JP 8276982A JP S58198948 A JPS58198948 A JP S58198948A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- sounder
- voltage
- sounding
- digital
- 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
- 230000005236 sound signal Effects 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000001186 cumulative effect Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 8
- 235000009508 confectionery Nutrition 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000272201 Columbiformes Species 0.000 description 1
- 206010052804 Drug tolerance Diseases 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000021162 brunch Nutrition 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000026781 habituation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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 true JPS58198948A (ja) | 1983-11-19 |
| JPS6351624B2 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 |
|---|---|
| JPS6351624B2 (enrdf_load_stackoverflow) | 1988-10-14 |
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