GB1453518A - Centrally controlled telecommunications exchange systems - Google Patents
Centrally controlled telecommunications exchange systemsInfo
- Publication number
- GB1453518A GB1453518A GB345574A GB345574A GB1453518A GB 1453518 A GB1453518 A GB 1453518A GB 345574 A GB345574 A GB 345574A GB 345574 A GB345574 A GB 345574A GB 1453518 A GB1453518 A GB 1453518A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exchange
- section
- free
- scanner
- junctors
- 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
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Exchange Systems With Centralized Control (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732304415 DE2304415C3 (de) | 1973-01-30 | 1973-01-30 | Schaltungsanordnung für zentralgesteuerte Fernmeldevermittlungsanlagen mit Suchern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1453518A true GB1453518A (en) | 1976-10-27 |
Family
ID=5870337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB345574A Expired GB1453518A (en) | 1973-01-30 | 1974-01-25 | Centrally controlled telecommunications exchange systems |
Country Status (11)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398543A1 (en) * | 1989-05-08 | 1990-11-22 | AT&T Corp. | Concurrent multi-stage network control method |
-
1973
- 1973-01-30 DE DE19732304415 patent/DE2304415C3/de not_active Expired
- 1973-12-14 AT AT1051473A patent/AT330248B/de not_active IP Right Cessation
-
1974
- 1974-01-09 CH CH22974A patent/CH567852A5/xx not_active IP Right Cessation
- 1974-01-25 FR FR7402532A patent/FR2215770B1/fr not_active Expired
- 1974-01-25 GB GB345574A patent/GB1453518A/en not_active Expired
- 1974-01-25 IT IT1980774A patent/IT1007089B/it active
- 1974-01-28 NL NL7401132A patent/NL167829C/xx not_active IP Right Cessation
- 1974-01-28 LU LU69246D patent/LU69246A1/xx unknown
- 1974-01-29 DK DK46574A patent/DK140450C/da not_active IP Right Cessation
- 1974-01-30 SE SE7401217A patent/SE398951B/xx unknown
- 1974-01-30 BE BE140356A patent/BE810376A/xx not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398543A1 (en) * | 1989-05-08 | 1990-11-22 | AT&T Corp. | Concurrent multi-stage network control method |
Also Published As
| Publication number | Publication date |
|---|---|
| NL167829C (nl) | 1982-01-18 |
| DE2304415A1 (de) | 1974-08-15 |
| FR2215770A1 (enrdf_load_stackoverflow) | 1974-08-23 |
| IT1007089B (it) | 1976-10-30 |
| FR2215770B1 (enrdf_load_stackoverflow) | 1981-04-30 |
| CH567852A5 (enrdf_load_stackoverflow) | 1975-10-15 |
| ATA1051473A (de) | 1975-09-15 |
| DE2304415B2 (de) | 1977-08-04 |
| AT330248B (de) | 1976-06-25 |
| SE398951B (sv) | 1978-01-23 |
| LU69246A1 (enrdf_load_stackoverflow) | 1974-04-10 |
| BE810376A (fr) | 1974-07-30 |
| DE2304415C3 (de) | 1978-04-06 |
| DK140450C (da) | 1980-02-04 |
| NL167829B (nl) | 1981-08-17 |
| NL7401132A (enrdf_load_stackoverflow) | 1974-08-01 |
| DK140450B (da) | 1979-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |