GB1380236A - Protection method against false connections in telecommunication systems - Google Patents
Protection method against false connections in telecommunication systemsInfo
- Publication number
- GB1380236A GB1380236A GB1291473A GB1291473A GB1380236A GB 1380236 A GB1380236 A GB 1380236A GB 1291473 A GB1291473 A GB 1291473A GB 1291473 A GB1291473 A GB 1291473A GB 1380236 A GB1380236 A GB 1380236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- order
- channel
- address
- information
- switching
- 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
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Communication Control (AREA)
- Exchange Systems With Centralized Control (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH449272A CH543208A (de) | 1972-03-27 | 1972-03-27 | Verfahren zum Schutz gegen Falschverbindungen in Fernmeldevermittlungsanlagen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1380236A true GB1380236A (en) | 1975-01-08 |
Family
ID=4277113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1291473A Expired GB1380236A (en) | 1972-03-27 | 1973-03-16 | Protection method against false connections in telecommunication systems |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5019305A (sr) |
AU (1) | AU5349673A (sr) |
BE (1) | BE797362A (sr) |
CH (1) | CH543208A (sr) |
DE (1) | DE2314643B2 (sr) |
ES (1) | ES412212A1 (sr) |
FR (1) | FR2178021B1 (sr) |
GB (1) | GB1380236A (sr) |
IL (1) | IL41822A0 (sr) |
IT (1) | IT982613B (sr) |
LU (1) | LU67276A1 (sr) |
NL (1) | NL7304140A (sr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4127742A (en) * | 1977-09-01 | 1978-11-28 | International Telephone And Telegraph Corporation | Time division telecommunication system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1488780A (fr) * | 1965-08-07 | 1967-07-13 | Western Electric Co | Système de commutation à répartition temporelle |
FR1488781A (fr) * | 1965-08-07 | 1967-07-13 | Western Electric Co | Système téléphonique à répartition temporelle |
-
1972
- 1972-03-27 CH CH449272A patent/CH543208A/de not_active IP Right Cessation
-
1973
- 1973-03-01 ES ES412212A patent/ES412212A1/es not_active Expired
- 1973-03-16 GB GB1291473A patent/GB1380236A/en not_active Expired
- 1973-03-19 IL IL41822A patent/IL41822A0/xx unknown
- 1973-03-20 AU AU53496/73A patent/AU5349673A/en not_active Expired
- 1973-03-23 LU LU67276A patent/LU67276A1/xx unknown
- 1973-03-23 NL NL7304140A patent/NL7304140A/xx unknown
- 1973-03-23 DE DE19732314643 patent/DE2314643B2/de active Pending
- 1973-03-23 IT IT22025/73A patent/IT982613B/it active
- 1973-03-27 JP JP48035011A patent/JPS5019305A/ja active Pending
- 1973-03-27 BE BE2052634A patent/BE797362A/xx unknown
- 1973-03-27 FR FR7310876A patent/FR2178021B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE797362A (nl) | 1973-09-27 |
ES412212A1 (es) | 1976-01-01 |
FR2178021A1 (sr) | 1973-11-09 |
NL7304140A (sr) | 1973-10-01 |
IT982613B (it) | 1974-10-21 |
FR2178021B1 (sr) | 1976-06-11 |
JPS5019305A (sr) | 1975-02-28 |
IL41822A0 (en) | 1973-05-31 |
DE2314643B2 (de) | 1976-05-06 |
AU5349673A (en) | 1974-09-26 |
LU67276A1 (sr) | 1973-08-17 |
DE2314643A1 (de) | 1973-10-18 |
CH543208A (de) | 1973-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |