JPH0350479B2 - - Google Patents
Info
- Publication number
- JPH0350479B2 JPH0350479B2 JP5957886A JP5957886A JPH0350479B2 JP H0350479 B2 JPH0350479 B2 JP H0350479B2 JP 5957886 A JP5957886 A JP 5957886A JP 5957886 A JP5957886 A JP 5957886A JP H0350479 B2 JPH0350479 B2 JP H0350479B2
- Authority
- JP
- Japan
- Prior art keywords
- photocoupler
- light
- central office
- loop
- office line
- 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
- 238000001514 detection method Methods 0.000 claims description 37
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004191 hydrophobic interaction chromatography Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Interface Circuits In Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5957886A JPS62241494A (ja) | 1986-03-19 | 1986-03-19 | 極性反転検出回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5957886A JPS62241494A (ja) | 1986-03-19 | 1986-03-19 | 極性反転検出回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62241494A JPS62241494A (ja) | 1987-10-22 |
| JPH0350479B2 true JPH0350479B2 (cs) | 1991-08-01 |
Family
ID=13117251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5957886A Granted JPS62241494A (ja) | 1986-03-19 | 1986-03-19 | 極性反転検出回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62241494A (cs) |
-
1986
- 1986-03-19 JP JP5957886A patent/JPS62241494A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62241494A (ja) | 1987-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |