ES8700501A1 - Un circuito integrado para aparato telefonico - Google Patents

Un circuito integrado para aparato telefonico

Info

Publication number
ES8700501A1
ES8700501A1 ES544437A ES544437A ES8700501A1 ES 8700501 A1 ES8700501 A1 ES 8700501A1 ES 544437 A ES544437 A ES 544437A ES 544437 A ES544437 A ES 544437A ES 8700501 A1 ES8700501 A1 ES 8700501A1
Authority
ES
Spain
Prior art keywords
channels
coupled
preamplifiers
ancillary
attenuation
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
ES544437A
Other languages
English (en)
Other versions
ES544437A0 (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 GB08416032A external-priority patent/GB2147175B/en
Application filed by Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES544437A0 publication Critical patent/ES544437A0/es
Publication of ES8700501A1 publication Critical patent/ES8700501A1/es
Expired legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)

Abstract

CIRCUITO INTEGRADO PARA APARATO TELEFONICO. CONSTA DE UN PRIMER CIRCUITO INTEGRADO (11) ADECUADO PARA PROPORCIONAR LOS SERVICIOS BASICOS TELEFONICOS, EL CUAL ESTA ASIGNADO PARA OFRECER UN CIRCUITO INTERFACE CON LA LINEA PARA UNA VARIEDAD DE TIPO DE TELEFONOS Y PROPORCIONAR EL SERVICIO POT BASICO, SIN COMPONENTES ACTIVOS EXTERNOS; DE UN CIRCUITO AUXILIAR (12) QUE INCORPORA UNA LOGICA DE DECISION, EN DONDE A TRAVES DE ATENUADORES COLOCADOS EN LOS CAMINOS DE RECEPCION Y TRANSMISION, SON CONTROLADOS PARA ASEGURAR QUE UN SOLO CAMINO ESTA ACTIVADO AL MISMO TIEMPO.
ES544437A 1984-06-22 1985-06-21 Un circuito integrado para aparato telefonico Expired ES8700501A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08416032A GB2147175B (en) 1983-06-29 1984-06-22 Improvements in telephone instruments

Publications (2)

Publication Number Publication Date
ES544437A0 ES544437A0 (es) 1986-07-16
ES8700501A1 true ES8700501A1 (es) 1986-07-16

Family

ID=10562861

Family Applications (1)

Application Number Title Priority Date Filing Date
ES544437A Expired ES8700501A1 (es) 1984-06-22 1985-06-21 Un circuito integrado para aparato telefonico

Country Status (2)

Country Link
AU (2) AU4322985A (es)
ES (1) ES8700501A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412649A (en) * 1987-07-06 1989-01-17 Nec Corp Variable gain circuit for loudspeaker telephone set

Also Published As

Publication number Publication date
ES544437A0 (es) 1986-07-16
AU4138189A (en) 1989-12-21
AU4322985A (en) 1986-01-02

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