DK141230B - Telekommunikationsanlæg med automatisk alarm ved afbrydelse af signaloverføringen. - Google Patents
Telekommunikationsanlæg med automatisk alarm ved afbrydelse af signaloverføringen. Download PDFInfo
- Publication number
- DK141230B DK141230B DK480276AA DK480276A DK141230B DK 141230 B DK141230 B DK 141230B DK 480276A A DK480276A A DK 480276AA DK 480276 A DK480276 A DK 480276A DK 141230 B DK141230 B DK 141230B
- Authority
- DK
- Denmark
- Prior art keywords
- terminal
- telecommunication system
- signals
- transmission
- circuit
- Prior art date
Links
- 230000008054 signal transmission Effects 0.000 title claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2209—Arrangements for supervision, monitoring or testing for lines also used for data transmission
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Amplifiers (AREA)
- Control Of Eletrric Generators (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7511950A SE387807B (sv) | 1975-10-24 | 1975-10-24 | Telekommunikationssystem i vilket ett larm vid ett avbrott i en tvavegs overforing av signaler er anordnat att kunna inhiberas |
| SE7511950 | 1975-10-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK480276A DK480276A (en, 2012) | 1977-04-25 |
| DK141230B true DK141230B (da) | 1980-02-04 |
| DK141230C DK141230C (en, 2012) | 1980-07-21 |
Family
ID=20325897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK480276AA DK141230B (da) | 1975-10-24 | 1976-10-22 | Telekommunikationsanlæg med automatisk alarm ved afbrydelse af signaloverføringen. |
Country Status (4)
| Country | Link |
|---|---|
| DK (1) | DK141230B (en, 2012) |
| FI (1) | FI62437C (en, 2012) |
| NO (1) | NO137876C (en, 2012) |
| SE (1) | SE387807B (en, 2012) |
-
1975
- 1975-10-24 SE SE7511950A patent/SE387807B/xx not_active IP Right Cessation
-
1976
- 1976-10-04 FI FI762818A patent/FI62437C/sv not_active IP Right Cessation
- 1976-10-22 DK DK480276AA patent/DK141230B/da not_active IP Right Cessation
- 1976-10-22 NO NO763607A patent/NO137876C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO137876B (no) | 1978-01-30 |
| DK141230C (en, 2012) | 1980-07-21 |
| NO137876C (no) | 1978-05-24 |
| DK480276A (en, 2012) | 1977-04-25 |
| FI762818A7 (en, 2012) | 1977-04-25 |
| FI62437C (fi) | 1982-12-10 |
| SE387807B (sv) | 1976-09-13 |
| NO763607L (en, 2012) | 1977-04-26 |
| FI62437B (fi) | 1982-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUP | Patent expired |