GB1370063A - Centrally controlled telecommunications exchange systems - Google Patents
Centrally controlled telecommunications exchange systemsInfo
- Publication number
- GB1370063A GB1370063A GB550872A GB550872A GB1370063A GB 1370063 A GB1370063 A GB 1370063A GB 550872 A GB550872 A GB 550872A GB 550872 A GB550872 A GB 550872A GB 1370063 A GB1370063 A GB 1370063A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exchange
- subscribers
- lines
- calls
- audio
- 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
- 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
-
- 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)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712106390 DE2106390C3 (de) | 1971-02-11 | 1971-02-11 | Schaltungsanordnung für eine zentral gesteuerte Fernmelde-, insbesondere Fernsprechnebenstellenanlage, mit angeschlossenen Impuls- und Tastwahlteilnehmerstationen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1370063A true GB1370063A (en) | 1974-10-09 |
Family
ID=5798410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB550872A Expired GB1370063A (en) | 1971-02-11 | 1972-02-07 | Centrally controlled telecommunications exchange systems |
Country Status (9)
Country | Link |
---|---|
AT (1) | AT316659B (xx) |
BE (1) | BE779286A (xx) |
CH (1) | CH540615A (xx) |
DE (1) | DE2106390C3 (xx) |
FR (1) | FR2126772A5 (xx) |
GB (1) | GB1370063A (xx) |
IT (1) | IT947374B (xx) |
LU (1) | LU64757A1 (xx) |
NL (1) | NL7201849A (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2500247B1 (fr) * | 1981-02-13 | 1987-12-24 | France Etat | Concentrateur-distributeur optique matriciel |
-
1971
- 1971-02-11 DE DE19712106390 patent/DE2106390C3/de not_active Expired
-
1972
- 1972-01-25 AT AT58472A patent/AT316659B/de not_active IP Right Cessation
- 1972-01-26 CH CH117072A patent/CH540615A/de not_active IP Right Cessation
- 1972-02-07 GB GB550872A patent/GB1370063A/en not_active Expired
- 1972-02-08 FR FR7204091A patent/FR2126772A5/fr not_active Expired
- 1972-02-08 IT IT2031572A patent/IT947374B/it active
- 1972-02-09 LU LU64757D patent/LU64757A1/xx unknown
- 1972-02-11 BE BE779286A patent/BE779286A/xx unknown
- 1972-02-11 NL NL7201849A patent/NL7201849A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL7201849A (xx) | 1972-08-15 |
FR2126772A5 (xx) | 1972-10-06 |
BE779286A (fr) | 1972-08-11 |
DE2106390A1 (de) | 1972-08-24 |
IT947374B (it) | 1973-05-21 |
DE2106390B2 (de) | 1975-01-02 |
LU64757A1 (xx) | 1972-07-04 |
CH540615A (de) | 1973-08-15 |
AT316659B (de) | 1974-07-25 |
DE2106390C3 (de) | 1975-08-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |