ES8700501A1 - Un circuito integrado para aparato telefonico - Google Patents
Un circuito integrado para aparato telefonicoInfo
- 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
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.
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)
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 |
-
1985
- 1985-06-03 AU AU43229/85A patent/AU4322985A/en not_active Abandoned
- 1985-06-21 ES ES544437A patent/ES8700501A1/es not_active Expired
-
1989
- 1989-09-14 AU AU41381/89A patent/AU4138189A/en not_active Abandoned
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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