JPS62274961A - 電話機用フツク動作検出回路 - Google Patents
電話機用フツク動作検出回路Info
- Publication number
- JPS62274961A JPS62274961A JP11885586A JP11885586A JPS62274961A JP S62274961 A JPS62274961 A JP S62274961A JP 11885586 A JP11885586 A JP 11885586A JP 11885586 A JP11885586 A JP 11885586A JP S62274961 A JPS62274961 A JP S62274961A
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- capacitor
- telephone set
- photocoupler
- circuit
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 17
- 238000007599 discharging Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11885586A JPS62274961A (ja) | 1986-05-23 | 1986-05-23 | 電話機用フツク動作検出回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11885586A JPS62274961A (ja) | 1986-05-23 | 1986-05-23 | 電話機用フツク動作検出回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62274961A true JPS62274961A (ja) | 1987-11-28 |
| JPH041546B2 JPH041546B2 (fr) | 1992-01-13 |
Family
ID=14746806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11885586A Granted JPS62274961A (ja) | 1986-05-23 | 1986-05-23 | 電話機用フツク動作検出回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62274961A (fr) |
-
1986
- 1986-05-23 JP JP11885586A patent/JPS62274961A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH041546B2 (fr) | 1992-01-13 |
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