GB1455437A - Line control circuit - Google Patents
Line control circuitInfo
- Publication number
- GB1455437A GB1455437A GB5653973A GB5653973A GB1455437A GB 1455437 A GB1455437 A GB 1455437A GB 5653973 A GB5653973 A GB 5653973A GB 5653973 A GB5653973 A GB 5653973A GB 1455437 A GB1455437 A GB 1455437A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductor
- transistor
- line circuits
- indicates
- current source
- 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
- 239000004020 conductor Substances 0.000 abstract 7
- 238000009877 rendering Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US372224A US3864530A (en) | 1973-06-21 | 1973-06-21 | Line control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1455437A true GB1455437A (en) | 1976-11-10 |
Family
ID=23467227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5653973A Expired GB1455437A (en) | 1973-06-21 | 1973-12-06 | Line control circuit |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3864530A (enExample) |
| JP (1) | JPS5049906A (enExample) |
| DE (1) | DE2364146A1 (enExample) |
| FR (1) | FR2234727B3 (enExample) |
| GB (1) | GB1455437A (enExample) |
| IT (1) | IT1008679B (enExample) |
| NL (1) | NL7315865A (enExample) |
| SE (1) | SE7315044L (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS576833B2 (enExample) * | 1974-12-20 | 1982-02-06 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1293441A (en) * | 1970-04-08 | 1972-10-18 | Plessey Co Ltd | Supervision of the control of telecommunications switching networks |
| US3694812A (en) * | 1971-08-20 | 1972-09-26 | Nippon Electric Co | Switching circuit having a controllable semiconductor switching element and a switching matrix employing the switching circuit |
| US3781484A (en) * | 1971-12-23 | 1973-12-25 | Gte Automatic Electric Lab Inc | Path selection technique for electronic switching network |
-
1973
- 1973-06-21 US US372224A patent/US3864530A/en not_active Expired - Lifetime
- 1973-11-06 SE SE7315044A patent/SE7315044L/ unknown
- 1973-11-20 NL NL7315865A patent/NL7315865A/xx unknown
- 1973-12-06 GB GB5653973A patent/GB1455437A/en not_active Expired
- 1973-12-07 FR FR7344455A patent/FR2234727B3/fr not_active Expired
- 1973-12-21 DE DE2364146A patent/DE2364146A1/de active Pending
-
1974
- 1974-01-09 IT IT47604/74A patent/IT1008679B/it active
- 1974-01-16 JP JP49007181A patent/JPS5049906A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE7315044L (enExample) | 1974-12-23 |
| NL7315865A (enExample) | 1974-12-24 |
| DE2364146A1 (de) | 1975-01-16 |
| JPS5049906A (enExample) | 1975-05-06 |
| FR2234727A1 (enExample) | 1975-01-17 |
| FR2234727B3 (enExample) | 1976-10-15 |
| US3864530A (en) | 1975-02-04 |
| IT1008679B (it) | 1976-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |