CA1287904C - Detection de pertes de signal a l'entree d'un circuit optique - Google Patents
Detection de pertes de signal a l'entree d'un circuit optiqueInfo
- Publication number
- CA1287904C CA1287904C CA 552800 CA552800A CA1287904C CA 1287904 C CA1287904 C CA 1287904C CA 552800 CA552800 CA 552800 CA 552800 A CA552800 A CA 552800A CA 1287904 C CA1287904 C CA 1287904C
- Authority
- CA
- Canada
- Prior art keywords
- signal
- voltage
- transistor
- loss
- alarm
- 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 - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 43
- 230000000007 visual effect Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000003213 activating effect Effects 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 238000011084 recovery Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Optical Communication System (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US944,042 | 1978-09-20 | ||
| US94404286A | 1986-12-22 | 1986-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1287904C true CA1287904C (fr) | 1991-08-20 |
Family
ID=25480683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 552800 Expired - Fee Related CA1287904C (fr) | 1986-12-22 | 1987-11-19 | Detection de pertes de signal a l'entree d'un circuit optique |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1287904C (fr) |
-
1987
- 1987-11-19 CA CA 552800 patent/CA1287904C/fr not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |