GB1380236A - Protection method against false connections in telecommunication systems - Google Patents

Protection method against false connections in telecommunication systems

Info

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
Application number
GB1291473A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hasler AG
Nokia Solutions and Networks Schweiz AG
Original Assignee
Hasler AG
Standard Telephon and Radio AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hasler AG, Standard Telephon and Radio AG filed Critical Hasler AG
Publication of GB1380236A publication Critical patent/GB1380236A/en
Expired legal-status Critical Current

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)
  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
GB1291473A 1972-03-27 1973-03-16 Protection method against false connections in telecommunication systems Expired GB1380236A (en)

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 (de)
AU (1) AU5349673A (de)
BE (1) BE797362A (de)
CH (1) CH543208A (de)
DE (1) DE2314643B2 (de)
ES (1) ES412212A1 (de)
FR (1) FR2178021B1 (de)
GB (1) GB1380236A (de)
IL (1) IL41822A0 (de)
IT (1) IT982613B (de)
LU (1) LU67276A1 (de)
NL (1) NL7304140A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1488781A (fr) * 1965-08-07 1967-07-13 Western Electric Co Système téléphonique à répartition temporelle
FR1488780A (fr) * 1965-08-07 1967-07-13 Western Electric Co Système de commutation à répartition temporelle

Also Published As

Publication number Publication date
DE2314643B2 (de) 1976-05-06
FR2178021B1 (de) 1976-06-11
JPS5019305A (de) 1975-02-28
FR2178021A1 (de) 1973-11-09
AU5349673A (en) 1974-09-26
ES412212A1 (es) 1976-01-01
LU67276A1 (de) 1973-08-17
NL7304140A (de) 1973-10-01
BE797362A (nl) 1973-09-27
CH543208A (de) 1973-10-15
IL41822A0 (en) 1973-05-31
DE2314643A1 (de) 1973-10-18
IT982613B (it) 1974-10-21

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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