ES183993A1 - IMPROVEMENTS RELATED TO CENTRAL TELECOMMUNICATION SYSTEMS. - Google Patents

IMPROVEMENTS RELATED TO CENTRAL TELECOMMUNICATION SYSTEMS.

Info

Publication number
ES183993A1
ES183993A1 ES0183993A ES183993A ES183993A1 ES 183993 A1 ES183993 A1 ES 183993A1 ES 0183993 A ES0183993 A ES 0183993A ES 183993 A ES183993 A ES 183993A ES 183993 A1 ES183993 A1 ES 183993A1
Authority
ES
Spain
Prior art keywords
connection
echo
improvements related
telecommunication systems
risk
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
ES0183993A
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
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 GB11457/47A external-priority patent/GB675265A/en
Application filed by Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES183993A1 publication Critical patent/ES183993A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Exchange Systems With Centralized Control (AREA)

Abstract

Mejoras relacionadas con sistemas de centrales de comunicación caracterizadas por un equipo para insertar un supresor de eco en una conexión de central de comunicación que comprende medios para registrar si un canal que debe utilizarse en una conexión es de caracter dudoso o de segunda clase respecto al riesgo de eco, medios para registrar si otra parte de una conexión es de caracter dudoso o de segunda clase respecto al riesgo de eco, medios para confrontar si los referidos medios de registro están funcionando, y medios controlados por los referidos medios de confrontación para introducir un supresor de eco en una conexión.Improvements related to communication exchange systems characterized by equipment for inserting an echo suppressor in a communication exchange connection comprising means for registering whether a channel to be used in a connection is of a doubtful or second-class character with respect to risk of echo, means to register if another part of a connection is of doubtful character or of second class with respect to the risk of echo, means to check whether the said recording means are working, and means controlled by the said checking means to introduce a echo suppressor on a connection.

ES0183993A 1947-04-29 1948-06-05 IMPROVEMENTS RELATED TO CENTRAL TELECOMMUNICATION SYSTEMS. Expired ES183993A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11457/47A GB675265A (en) 1944-11-03 1947-04-29 Improvements in or relating to wear resistant bodies

Publications (1)

Publication Number Publication Date
ES183993A1 true ES183993A1 (en) 1948-11-16

Family

ID=38463897

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0183993A Expired ES183993A1 (en) 1947-04-29 1948-06-05 IMPROVEMENTS RELATED TO CENTRAL TELECOMMUNICATION SYSTEMS.

Country Status (1)

Country Link
ES (1) ES183993A1 (en)

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