FR1040590A - Dispositif annonciateur de fin de conversation - Google Patents

Dispositif annonciateur de fin de conversation

Info

Publication number
FR1040590A
FR1040590A FR1040590DA FR1040590A FR 1040590 A FR1040590 A FR 1040590A FR 1040590D A FR1040590D A FR 1040590DA FR 1040590 A FR1040590 A FR 1040590A
Authority
FR
France
Prior art keywords
annunciator
conversation
conversation annunciator
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
Other languages
English (en)
French (fr)
Inventor
Antoine Snijders
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.)
Nederlanden Staat
Original Assignee
Nederlanden Staat
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 Nederlanden Staat filed Critical Nederlanden Staat
Application granted granted Critical
Publication of FR1040590A publication Critical patent/FR1040590A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • H03K17/288—Modifications for introducing a time delay before switching in tube switches
    • 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
    • H03K17/54—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements of vacuum tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
FR1040590D 1950-08-01 1950-08-28 Dispositif annonciateur de fin de conversation Expired FR1040590A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1924050A GB678535A (en) 1950-08-01 1950-08-01 Circuit arrangement for supervising the operation of a relay armature

Publications (1)

Publication Number Publication Date
FR1040590A true FR1040590A (fr) 1953-10-16

Family

ID=10126049

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1040590D Expired FR1040590A (fr) 1950-08-01 1950-08-28 Dispositif annonciateur de fin de conversation

Country Status (3)

Country Link
FR (1) FR1040590A (enrdf_load_stackoverflow)
GB (1) GB678535A (enrdf_load_stackoverflow)
NL (1) NL73109C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049913B (de) * 1956-07-11 1959-02-05 N. V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Regelbarer elektronischer Zeitschalter mit einer steuerbaren Hochvakuumröhre, einem in den Anodenkreis dieser Röhre geschalteten Relais und einem über einen Widerstand aufladbaren Kondensator
US2919382A (en) * 1957-06-05 1959-12-29 Ibm Control circuit

Also Published As

Publication number Publication date
GB678535A (en) 1952-09-03
NL73109C (enrdf_load_stackoverflow)

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