CH371483A - Elective level for an automatic telecommunications exchange - Google Patents

Elective level for an automatic telecommunications exchange

Info

Publication number
CH371483A
CH371483A CH1755654A CH1755654A CH371483A CH 371483 A CH371483 A CH 371483A CH 1755654 A CH1755654 A CH 1755654A CH 1755654 A CH1755654 A CH 1755654A CH 371483 A CH371483 A CH 371483A
Authority
CH
Switzerland
Prior art keywords
elective
level
telecommunications exchange
automatic telecommunications
automatic
Prior art date
Application number
CH1755654A
Other languages
German (de)
Inventor
Harry Bray Frederick
George Knight Ronald
Clifford Hartley George
Original Assignee
Standard Telephon & 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
Priority claimed from GB9307/52A external-priority patent/GB734345A/en
Priority claimed from GB4473/55A external-priority patent/GB788593A/en
Priority claimed from GB33617/53A external-priority patent/GB788929A/en
Application filed by Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH371483A publication Critical patent/CH371483A/en

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
    • H04Q3/52—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
    • H04Q3/525—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 tubes in the switching stages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/52—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of gas-filled tubes
    • 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)
  • Interface Circuits In Exchanges (AREA)
CH1755654A 1952-04-10 1954-08-30 Elective level for an automatic telecommunications exchange CH371483A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9307/52A GB734345A (en) 1952-04-10 1952-04-10 Improvements in or relating to electric signal switching circuits and cold cathode gas-filled discharge tubes therefor
GB24261/53A GB788592A (en) 1952-04-10 1953-09-02 Improvements in or relating to selector switches and to automatic telecommunication systems using such selector switches
GB4473/55A GB788593A (en) 1952-04-10 1953-09-02 Improvements in or relating to automatic telecommunication exchange systems
GB33617/53A GB788929A (en) 1952-04-10 1953-12-03 Improvements in or relating to automatic telecommunication exchanges

Publications (1)

Publication Number Publication Date
CH371483A true CH371483A (en) 1963-08-31

Family

ID=32398120

Family Applications (4)

Application Number Title Priority Date Filing Date
CH1785954A CH371485A (en) 1952-04-10 1954-08-30 Automatic telecommunications office
CH1755654A CH371483A (en) 1952-04-10 1954-08-30 Elective level for an automatic telecommunications exchange
CH1765454A CH371484A (en) 1952-04-10 1954-08-30 Setup with a selector switch
CH968354A CH371482A (en) 1952-04-10 1954-08-30 Automatic telecommunications office

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH1785954A CH371485A (en) 1952-04-10 1954-08-30 Automatic telecommunications office

Family Applications After (2)

Application Number Title Priority Date Filing Date
CH1765454A CH371484A (en) 1952-04-10 1954-08-30 Setup with a selector switch
CH968354A CH371482A (en) 1952-04-10 1954-08-30 Automatic telecommunications office

Country Status (1)

Country Link
CH (4) CH371485A (en)

Also Published As

Publication number Publication date
CH371485A (en) 1963-08-31
CH371484A (en) 1963-08-31
CH371482A (en) 1963-08-31

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