ES2062193T3 - Detector de señales alternativas de baja frecuencia, en particular para conectador telefonico. - Google Patents

Detector de señales alternativas de baja frecuencia, en particular para conectador telefonico.

Info

Publication number
ES2062193T3
ES2062193T3 ES90111425T ES90111425T ES2062193T3 ES 2062193 T3 ES2062193 T3 ES 2062193T3 ES 90111425 T ES90111425 T ES 90111425T ES 90111425 T ES90111425 T ES 90111425T ES 2062193 T3 ES2062193 T3 ES 2062193T3
Authority
ES
Spain
Prior art keywords
detector
low frequency
input
signal detector
output
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
ES90111425T
Other languages
English (en)
Inventor
Andre Bonvallet
Robert Girard
Daniel Perrein
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 ES2062193T3 publication Critical patent/ES2062193T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/46—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Telephone Function (AREA)

Abstract

DETECTOR DE SEÑALES ALTERNAS DE BAJA FRECUENCIA, EN ESPECIAL PARA EL RECONOCIMIENTO DE SEÑALES DE TONALIDAD EN UN EMPALME DE LINEA DE RED ANALOGICA DE UNA INSTALACION TELEFONICA DE TIPO PRIVADO. EL DETECTOR CONSTA DE UN AMPLIFICADOR (1) ENLAZADO, POR UNA PARTE, EN LA ENTRADA DE UN FILTRO PASABANDA (2) Y, POR OTRA, EN LA ENTRADA DE UNA PRIMERA CELULA DE REDIRECCIONAMIENTO-FILTRADO (3), UNA SEGUNDA CELULA DE REDIRECCIONAMIENTO-FILTRADO (4) Y UN DETECTOR DE PRESENCIA DE UMBRAL (5) CONECTADAS EN LA SALIDA DEL FILTRO PASABANDA (2). LA SALIDA DEL DETECTOR (5) PERMITE O NO LA COMPARACION POR UNCOMPARADOR (6) ENTRE LAS SEÑALES DE ENTRADA Y DE SALIDA DEL FILTRO Y UNA SEÑALIZACION DE LA PRESENCIA DE LA SEÑAL ALTERNA ESPERADA.
ES90111425T 1989-06-19 1990-06-18 Detector de señales alternativas de baja frecuencia, en particular para conectador telefonico. Expired - Lifetime ES2062193T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR898908119A FR2648661B1 (fr) 1989-06-19 1989-06-19 Detecteur de signaux alternatifs basse frequence notamment pour joncteur telephonique

Publications (1)

Publication Number Publication Date
ES2062193T3 true ES2062193T3 (es) 1994-12-16

Family

ID=9382882

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90111425T Expired - Lifetime ES2062193T3 (es) 1989-06-19 1990-06-18 Detector de señales alternativas de baja frecuencia, en particular para conectador telefonico.

Country Status (6)

Country Link
US (1) US5218635A (es)
EP (1) EP0404002B1 (es)
AT (1) ATE111669T1 (es)
DE (1) DE69012446T2 (es)
ES (1) ES2062193T3 (es)
FR (1) FR2648661B1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI99166C (fi) * 1994-10-14 1997-10-10 Nokia Telecommunications Oy Menetelmä ennalta määrätyn taajuisen signaalin detektoimiseksi sekä ilmaisinpiiri
US5544241A (en) * 1995-06-27 1996-08-06 Andrew S. Dibner Telephone ring detector
US5920846A (en) * 1996-02-27 1999-07-06 Southwestern Bell Telephone Co. Method and system for processing a service request relating to installation, maintenance or repair of telecommunications services provided to a customer premises
EP0899926A1 (en) * 1997-08-25 1999-03-03 Alcatel Telecommunication device with caller identification
US20020099966A1 (en) * 2001-01-25 2002-07-25 Sigmatel, Inc. Method and apparatus for waking up a circuit and applications thereof
US7110525B1 (en) 2001-06-25 2006-09-19 Toby Heller Agent training sensitive call routing system
US7023979B1 (en) 2002-03-07 2006-04-04 Wai Wu Telephony control system with intelligent call routing
US7372952B1 (en) 2002-03-07 2008-05-13 Wai Wu Telephony control system with intelligent call routing
US9818136B1 (en) 2003-02-05 2017-11-14 Steven M. Hoffberg System and method for determining contingent relevance
US7676034B1 (en) 2003-03-07 2010-03-09 Wai Wu Method and system for matching entities in an auction
US8874477B2 (en) 2005-10-04 2014-10-28 Steven Mark Hoffberg Multifactorial optimization system and method
US8300798B1 (en) 2006-04-03 2012-10-30 Wai Wu Intelligent communication routing system and method
MX2017005751A (es) 2014-11-03 2018-04-10 Genentech Inc Métodos y biomarcadores para predecir la eficacia y evaluación de un tratamiento con agonista de ox40.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT338881B (de) * 1974-10-10 1977-09-26 Kapsch Telephon Telegraph Schaltungsanordnung fur eine sprachgeschutzte empfangseinrichtung fur mehrfrequenz-codewahl bei fernmeldevermittlungseinrichtungen, insbesondere fernsprechvermittlungsanlagen
US4386239A (en) * 1980-06-17 1983-05-31 Bell Telephone Laboratories, Incorporated Multifrequency tone detector
US4477698A (en) * 1982-09-07 1984-10-16 Melita Electronics Labs, Inc. Apparatus for detecting pick-up at a remote telephone set
FR2551604B1 (fr) * 1983-09-06 1985-10-25 Thomson Csf Mat Tel Dispositif de teletaxation pour terminal telephonique electronique
US4689760A (en) * 1984-11-09 1987-08-25 Digital Sound Corporation Digital tone decoder and method of decoding tones using linear prediction coding
US4599495A (en) * 1985-02-28 1986-07-08 Northern Telecom Limited Apparatus for multifrequency signalling tone detection
DE3710695A1 (de) * 1987-03-31 1988-10-20 Nixdorf Computer Ag Schaltungsanordnung zum erkennen von doppelton-mehrfrequenzsignalen in fernsprechanlagen

Also Published As

Publication number Publication date
US5218635A (en) 1993-06-08
FR2648661A1 (fr) 1990-12-21
FR2648661B1 (fr) 1994-03-04
ATE111669T1 (de) 1994-09-15
DE69012446D1 (de) 1994-10-20
EP0404002B1 (fr) 1994-09-14
DE69012446T2 (de) 1995-02-02
EP0404002A1 (fr) 1990-12-27

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