ZA739295B - Electronic feeding bridge for a telephone line - Google Patents
Electronic feeding bridge for a telephone lineInfo
- Publication number
- ZA739295B ZA739295B ZA739295A ZA739295A ZA739295B ZA 739295 B ZA739295 B ZA 739295B ZA 739295 A ZA739295 A ZA 739295A ZA 739295 A ZA739295 A ZA 739295A ZA 739295 B ZA739295 B ZA 739295B
- Authority
- ZA
- South Africa
- Prior art keywords
- telephone line
- feeding bridge
- electronic feeding
- electronic
- bridge
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/005—Feeding arrangements without the use of line transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7303357A FR2216733B1 (en) | 1973-01-31 | 1973-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA739295B true ZA739295B (en) | 1974-10-30 |
Family
ID=9114110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA739295A ZA739295B (en) | 1973-01-31 | 1973-12-06 | Electronic feeding bridge for a telephone line |
Country Status (4)
Country | Link |
---|---|
FR (1) | FR2216733B1 (en) |
GB (1) | GB1413860A (en) |
IE (1) | IE38728B1 (en) |
ZA (1) | ZA739295B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2254167B2 (en) * | 1973-12-10 | 1978-08-18 | Labo Cent Telecommunicat | |
GB1560922A (en) * | 1977-02-01 | 1980-02-13 | Plessey Co Ltd | Telephone systems |
IT1159706B (en) * | 1978-06-02 | 1987-03-04 | Cselt Centro Studi Lab Telecom | USER LINE ELECTRONIC TELEPHONE CIRCUIT |
GB2135854B (en) * | 1983-02-10 | 1986-04-23 | Robert James Redding | Line-powered modem |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1391351A (en) * | 1964-04-21 | 1965-03-05 | Philips Nv | Circuit for applying voltage to a load |
US3649769A (en) * | 1970-10-28 | 1972-03-14 | Gen Electric | Circuit for supplying direct current to a telephone line |
-
1973
- 1973-01-31 FR FR7303357A patent/FR2216733B1/fr not_active Expired
- 1973-12-06 GB GB5652173A patent/GB1413860A/en not_active Expired
- 1973-12-06 ZA ZA739295A patent/ZA739295B/en unknown
-
1974
- 1974-01-09 IE IE50/74A patent/IE38728B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU6438474A (en) | 1975-07-10 |
FR2216733A1 (en) | 1974-08-30 |
GB1413860A (en) | 1975-11-12 |
FR2216733B1 (en) | 1978-05-12 |
IE38728L (en) | 1974-07-31 |
IE38728B1 (en) | 1978-05-24 |
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