GB2021900B - Automatic exchange systems - Google Patents
Automatic exchange systemsInfo
- Publication number
- GB2021900B GB2021900B GB7911509A GB7911509A GB2021900B GB 2021900 B GB2021900 B GB 2021900B GB 7911509 A GB7911509 A GB 7911509A GB 7911509 A GB7911509 A GB 7911509A GB 2021900 B GB2021900 B GB 2021900B
- Authority
- GB
- United Kingdom
- Prior art keywords
- exchange systems
- automatic exchange
- automatic
- systems
- exchange
- 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
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/16—Wiring arrangements for selector switches or relays in frames
-
- 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
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Devices For Supply Of Signal Current (AREA)
- Exchange Systems With Centralized Control (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU78HI489A HU174451B (en) | 1978-04-18 | 1978-04-18 | Arrangement to common controlled switching equipments, in particular to central exchanges |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2021900A GB2021900A (en) | 1979-12-05 |
GB2021900B true GB2021900B (en) | 1982-06-09 |
Family
ID=10997222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7911509A Expired GB2021900B (en) | 1978-04-18 | 1979-04-03 | Automatic exchange systems |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5513596A (en) |
BE (1) | BE875629A (en) |
CS (1) | CS261203B2 (en) |
DD (1) | DD143343A5 (en) |
DE (1) | DE2915478C2 (en) |
FI (1) | FI791199A (en) |
GB (1) | GB2021900B (en) |
GR (1) | GR67715B (en) |
HU (1) | HU174451B (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4074072A (en) * | 1976-05-24 | 1978-02-14 | Bell Telephone Laboratories, Incorporated | Multiprocessor control of a partitioned switching network by control communication through the network |
-
1978
- 1978-04-18 HU HU78HI489A patent/HU174451B/en not_active IP Right Cessation
-
1979
- 1979-04-03 GB GB7911509A patent/GB2021900B/en not_active Expired
- 1979-04-06 GR GR58812A patent/GR67715B/el unknown
- 1979-04-11 FI FI791199A patent/FI791199A/en not_active Application Discontinuation
- 1979-04-12 CS CS792511A patent/CS261203B2/en unknown
- 1979-04-17 BE BE0/194646A patent/BE875629A/en unknown
- 1979-04-17 JP JP4715079A patent/JPS5513596A/en active Pending
- 1979-04-17 DE DE19792915478 patent/DE2915478C2/en not_active Expired
- 1979-04-18 DD DD21229679A patent/DD143343A5/en unknown
Also Published As
Publication number | Publication date |
---|---|
FI791199A (en) | 1979-10-19 |
GR67715B (en) | 1981-09-14 |
JPS5513596A (en) | 1980-01-30 |
CS251179A2 (en) | 1988-04-15 |
GB2021900A (en) | 1979-12-05 |
CS261203B2 (en) | 1989-01-12 |
DD143343A5 (en) | 1980-08-13 |
BE875629A (en) | 1979-08-16 |
DE2915478C2 (en) | 1983-11-10 |
DE2915478A1 (en) | 1979-10-31 |
HU174451B (en) | 1980-01-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |