GB2034557B - Transmission bridge for telephone subscriber's line circuit - Google Patents
Transmission bridge for telephone subscriber's line circuitInfo
- Publication number
- GB2034557B GB2034557B GB7936047A GB7936047A GB2034557B GB 2034557 B GB2034557 B GB 2034557B GB 7936047 A GB7936047 A GB 7936047A GB 7936047 A GB7936047 A GB 7936047A GB 2034557 B GB2034557 B GB 2034557B
- Authority
- GB
- United Kingdom
- Prior art keywords
- line circuit
- telephone subscriber
- transmission bridge
- bridge
- transmission
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
- Confectionery (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7810504A NL7810504A (en) | 1978-10-20 | 1978-10-20 | POWER BRIDGE FOR A SUBSCRIBER FLOW. |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2034557A GB2034557A (en) | 1980-06-04 |
GB2034557B true GB2034557B (en) | 1982-12-01 |
Family
ID=19831748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7936047A Expired GB2034557B (en) | 1978-10-20 | 1979-10-17 | Transmission bridge for telephone subscriber's line circuit |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5912065B2 (en) |
AU (1) | AU5188879A (en) |
BE (1) | BE879495A (en) |
CA (1) | CA1138140A (en) |
DE (1) | DE2941981C2 (en) |
FR (1) | FR2439519A1 (en) |
GB (1) | GB2034557B (en) |
IT (1) | IT1123890B (en) |
NL (1) | NL7810504A (en) |
SE (1) | SE434790B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4551670A (en) * | 1984-04-19 | 1985-11-05 | At&T Bell Laboratories | Circuit for maintaining the DC voltage on an electrically isolated telecommunication line at a reference level |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE883300C (en) * | 1945-03-21 | 1953-07-16 | Aeg | Dialer device with additions to the power supply for intercom stations that are equipped with amplifiers |
GB1070901A (en) * | 1963-01-03 | 1967-06-07 | Post Office | Improvements in or relating to telephone exchange systems |
BE793240A (en) * | 1971-12-27 | 1973-04-16 | Western Electric Co | REDUCED INSERTION LOSS COUPLER |
US4007335A (en) * | 1975-11-12 | 1977-02-08 | Bell Telephone Laboratories, Incorporated | Telephone line battery feed circuit |
-
1978
- 1978-10-20 NL NL7810504A patent/NL7810504A/en not_active Application Discontinuation
-
1979
- 1979-09-28 FR FR7924174A patent/FR2439519A1/en not_active Withdrawn
- 1979-10-17 JP JP54133062A patent/JPS5912065B2/en not_active Expired
- 1979-10-17 IT IT26572/79A patent/IT1123890B/en active
- 1979-10-17 DE DE2941981A patent/DE2941981C2/en not_active Expired
- 1979-10-17 GB GB7936047A patent/GB2034557B/en not_active Expired
- 1979-10-17 AU AU51888/79A patent/AU5188879A/en not_active Abandoned
- 1979-10-17 CA CA000337849A patent/CA1138140A/en not_active Expired
- 1979-10-17 SE SE7908577A patent/SE434790B/en unknown
- 1979-10-18 BE BE0/197711A patent/BE879495A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB2034557A (en) | 1980-06-04 |
CA1138140A (en) | 1982-12-21 |
AU5188879A (en) | 1980-04-24 |
BE879495A (en) | 1980-04-18 |
IT1123890B (en) | 1986-04-30 |
SE7908577L (en) | 1980-04-21 |
SE434790B (en) | 1984-08-13 |
NL7810504A (en) | 1980-04-22 |
JPS5556755A (en) | 1980-04-25 |
FR2439519A1 (en) | 1980-05-16 |
DE2941981A1 (en) | 1980-04-30 |
DE2941981C2 (en) | 1983-04-21 |
IT7926572A0 (en) | 1979-10-17 |
JPS5912065B2 (en) | 1984-03-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |