ES2066032T3 - Terminal videotex contestador. - Google Patents

Terminal videotex contestador.

Info

Publication number
ES2066032T3
ES2066032T3 ES90107233T ES90107233T ES2066032T3 ES 2066032 T3 ES2066032 T3 ES 2066032T3 ES 90107233 T ES90107233 T ES 90107233T ES 90107233 T ES90107233 T ES 90107233T ES 2066032 T3 ES2066032 T3 ES 2066032T3
Authority
ES
Spain
Prior art keywords
network
circuits
call signal
answering
impedance
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 - Lifetime
Application number
ES90107233T
Other languages
English (en)
Inventor
Guy Bindels
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.)
ALE International SAS
Original Assignee
Alcatel Business Systemes 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
Application filed by Alcatel Business Systemes SA filed Critical Alcatel Business Systemes SA
Application granted granted Critical
Publication of ES2066032T3 publication Critical patent/ES2066032T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/08—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter
    • H04M11/085—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter using a television receiver, e.g. viewdata system

Abstract

EL TERMINAL VIDEOTEXTO RESPONDEDOR CONSTA DE UNOS CIRCUITOS DE TRANSMISION Y DE TRATAMIENTO DE SEÑALES DE DATOS Y DE UN TRANSFORMADOR DE AISLAMIENTO GALVANICO ENTRE LOS MISMOS Y LA RED TELEFONICA. SE CARACTERIZA PORQUE CONSTA DE UNOS CIRCUITOS (3,10) DE DETECCION Y DE RECONOCIMIENTO DE LA SEÑAL DE LLAMADA PROVENIENTE DE LA RED, ACOPLADO A LA RED POR DICHO TRANSFORMADOR DE AISLAMIENTO (13) UTILIZADO PARA LOS CIRCUITOS (4,5,10) DE LA SEÑAL DE DATOS, A LA QUE ESTAN ASOCIADAS UNA CAPACIDAD (17) Y UNA RESISTENCIA DE ATENUACION (18) ELEGIDAS PARA LA FRECUENCIA Y LOS NIVELES DE LA SEÑAL DE LLAMADA TRANSMITIDA POR LA RED, CON UNOS PRIMEROS ELEMENTOS CONTROLADOS (19) PARA SHUNTAR DICHA RSISTENCIA DE ATENUACION Y UNOS SEGUNDOS ELEMENTOS DE ADAPTACION DE LA IMPEDANCIA (16) PARA BAJAR LA IMPEDANCIA DE DICHA CAPACIDAD (17) AL PRODUCIRSE EL RECONOCIMIENTO DE LA SEÑAL DE LLAMADA.
ES90107233T 1989-04-21 1990-04-17 Terminal videotex contestador. Expired - Lifetime ES2066032T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8905353A FR2646304B1 (fr) 1989-04-21 1989-04-21 Terminal videotex repondeur

Publications (1)

Publication Number Publication Date
ES2066032T3 true ES2066032T3 (es) 1995-03-01

Family

ID=9381012

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90107233T Expired - Lifetime ES2066032T3 (es) 1989-04-21 1990-04-17 Terminal videotex contestador.

Country Status (11)

Country Link
US (1) US5029201A (es)
EP (1) EP0393570B1 (es)
AT (1) ATE115808T1 (es)
AU (1) AU625200B2 (es)
CA (1) CA2015055C (es)
DE (1) DE69014968T2 (es)
DK (1) DK0393570T3 (es)
ES (1) ES2066032T3 (es)
FR (1) FR2646304B1 (es)
NO (1) NO179990C (es)
PT (1) PT93834B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1244074B (it) * 1990-10-24 1994-07-05 Sgs Thomson Microelectronics Dispositivo di protezione di circuiti elettrici e/o elettronici di telefoni atto a limitare la potenza dissipata in essi.
US6115468A (en) 1998-03-26 2000-09-05 Cisco Technology, Inc. Power feed for Ethernet telephones via Ethernet link
WO1999053627A1 (en) 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies System for communicating with electronic equipment on a network
US6567472B1 (en) * 1999-05-26 2003-05-20 3Com Corporation System and method for terminating a line by reflecting a scaled impedance
US6804351B1 (en) 2000-11-09 2004-10-12 Cisco Technology, Inc. Method and apparatus for detecting a compatible phantom powered device using common mode signaling
US7447307B2 (en) * 2000-11-29 2008-11-04 Cisco Technology, Inc. Unpowered twisted pair loopback circuit for differential mode signaling
US6751236B1 (en) 2000-12-15 2004-06-15 Cisco Technology, Inc. Configurable channel associated signaling (“CAS”) line signaling using plain text strings
US7026730B1 (en) * 2002-12-20 2006-04-11 Cisco Technology, Inc. Integrated connector unit
US7366297B1 (en) 2003-05-21 2008-04-29 Cisco Technology, Inc. Method and system for converting alternating current to ethernet in-line power
US7061142B1 (en) 2003-05-28 2006-06-13 Cisco Technology, Inc. Inline power device detection
US7603570B2 (en) * 2004-05-13 2009-10-13 Cisco Technology, Inc. Power delivery over ethernet cables
US7373528B2 (en) * 2004-11-24 2008-05-13 Cisco Technology, Inc. Increased power for power over Ethernet applications
US7509505B2 (en) * 2005-01-04 2009-03-24 Cisco Technology, Inc. Method and system for managing power delivery for power over Ethernet systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529951A (en) * 1975-05-28 1978-10-25 Ansafone Ltd Telephone answering machines
US4581484A (en) * 1982-09-29 1986-04-08 Oclc Online Computer Library Center Incorporated Audio-enhanced videotex system
FR2546351B1 (fr) * 1983-05-18 1989-02-24 Telecommunications Sa Circuit de ligne pour joncteur de reseau
FR2564222A1 (fr) * 1984-05-09 1985-11-15 Brulpert Bernard Dispositif de telecommande vocale par liaison telephonique de materiel electronique
US4723267A (en) * 1985-06-17 1988-02-02 Octocom Systems, Inc. Telephone line interface and dialer circuitry for telecommunications equipment
US4890317A (en) * 1989-01-23 1989-12-26 Intellicall, Inc. Automatic validation of telephone account numbers

Also Published As

Publication number Publication date
CA2015055C (fr) 2000-02-01
NO179990C (no) 1997-01-22
PT93834A (pt) 1992-01-31
AU5313390A (en) 1990-10-25
DE69014968T2 (de) 1995-05-04
DE69014968D1 (de) 1995-01-26
NO901725L (no) 1990-10-22
PT93834B (pt) 1998-05-29
US5029201A (en) 1991-07-02
NO901725D0 (no) 1990-04-19
AU625200B2 (en) 1992-07-02
EP0393570B1 (fr) 1994-12-14
NO179990B (no) 1996-10-14
CA2015055A1 (fr) 1990-10-21
FR2646304B1 (fr) 1995-08-18
ATE115808T1 (de) 1994-12-15
FR2646304A1 (fr) 1990-10-26
DK0393570T3 (da) 1995-05-01
EP0393570A1 (fr) 1990-10-24

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