ES282817A1 - Improvements in automatic telephone switching systems (Machine-translation by Google Translate, not legally binding) - Google Patents

Improvements in automatic telephone switching systems (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES282817A1
ES282817A1 ES282817A ES282817A ES282817A1 ES 282817 A1 ES282817 A1 ES 282817A1 ES 282817 A ES282817 A ES 282817A ES 282817 A ES282817 A ES 282817A ES 282817 A1 ES282817 A1 ES 282817A1
Authority
ES
Spain
Prior art keywords
switching steps
translation
retention
machine
legally binding
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
ES282817A
Other languages
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Standard Electrica SA
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
Priority claimed from FR880491A external-priority patent/FR81352E/en
Application filed by Alcatel Espana SA, Standard Electrica SA filed Critical Alcatel Espana SA
Publication of ES282817A1 publication Critical patent/ES282817A1/en
Expired legal-status Critical Current

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • 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)
  • Exchange Systems With Centralized Control (AREA)

Abstract

Improvements in automatic telephone switching systems for extending connections between calling lines and calls through a number of switching steps interconnected by link means, each of said switching steps comprising two-wire transmission circuits, control means that drive in response to directing signals from any of said calling lines to dial said calling line and any called line, means for driving said switching steps to complete a connection on said two-wire transmission circuit from said calling line to said called line, retention means in said switching steps to maintain said established connection, independently of the retention control and release means responding to the termination of said connection to control said retention means on said two-wire retention circuit to release said switching steps tation. (Machine-translation by Google Translate, not legally binding)
ES282817A 1961-11-30 1962-11-26 Improvements in automatic telephone switching systems (Machine-translation by Google Translate, not legally binding) Expired ES282817A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR880491A FR81352E (en) 1961-04-25 1961-11-30 Selection system for circuits or electrical equipment

Publications (1)

Publication Number Publication Date
ES282817A1 true ES282817A1 (en) 1963-02-01

Family

ID=8767740

Family Applications (1)

Application Number Title Priority Date Filing Date
ES282817A Expired ES282817A1 (en) 1961-11-30 1962-11-26 Improvements in automatic telephone switching systems (Machine-translation by Google Translate, not legally binding)

Country Status (3)

Country Link
CH (1) CH462255A (en)
ES (1) ES282817A1 (en)
NL (1) NL142857B (en)

Also Published As

Publication number Publication date
CH462255A (en) 1968-09-15
NL142857B (en) 1974-07-15

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