ES2101638B1 - Terminal celular fijo para servicios de telecomunicaciones a dos hilos. - Google Patents

Terminal celular fijo para servicios de telecomunicaciones a dos hilos.

Info

Publication number
ES2101638B1
ES2101638B1 ES09402067A ES9402067A ES2101638B1 ES 2101638 B1 ES2101638 B1 ES 2101638B1 ES 09402067 A ES09402067 A ES 09402067A ES 9402067 A ES9402067 A ES 9402067A ES 2101638 B1 ES2101638 B1 ES 2101638B1
Authority
ES
Spain
Prior art keywords
cell phone
telecommunication services
wire
gsm
terminal
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
ES09402067A
Other languages
English (en)
Other versions
ES2101638A1 (es
Inventor
Martinez Antonio Javi Morcillo
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 Standard Electrics 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 Standard Electrics SA filed Critical Alcatel Standard Electrics SA
Priority to ES09402067A priority Critical patent/ES2101638B1/es
Priority to AU30382/95A priority patent/AU703600B2/en
Priority to NZ272929A priority patent/NZ272929A/en
Priority to EP95114186A priority patent/EP0704988A2/en
Priority to CN95117376A priority patent/CN1129888A/zh
Priority to CA002159577A priority patent/CA2159577A1/en
Priority to ZA958232A priority patent/ZA958232B/xx
Priority to JP7253807A priority patent/JPH08195700A/ja
Publication of ES2101638A1 publication Critical patent/ES2101638A1/es
Application granted granted Critical
Publication of ES2101638B1 publication Critical patent/ES2101638B1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/012—Comfort noise or silence coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

TERMINAL CELULAR FIJO PARA SERVICIOS DE TELECOMUNICACIONES A DOS HILOS. PARA ACCEDER A UNA RED DE COMUNICACIONES MOVILES DEL TIPO GSM Y PROVEER DE SERVICIOS BASICOS DE TELECOMUNICACIONES A UN TERMINAL TELEFONICO (TT) CONECTADO A EL. SE DERIVA DE UN TERMINAL CELULAR MOVIL GSM CON UN INTERFAZ DE LINEA QUE COMPRENDE UN CIRCUITO DE CONVERSION A DOS HILOS (H) CONECTADO A LAS VIAS DE TRANSMISION (TP) Y DE RECEPCION (RP), Y A LA LINEA DE ABONADO DONDE SE CONECTA EL TERMINAL TELEFONICO (TT), Y REALIZAR ASI UNA CONVERSION DE CUATRO A DOS HILOS. COMPRENDE ADEMAS UN SUPRESOR DE ECO (ES) PREVIO AL CIRCUITO DE CONVERSION A DOS HILOS (H), QUE COMPRENDE DOS ATENUADORES DE SEÑAL (ATT1, ATT2) INCLUIDOS EN LAS VIAS DE TRANSMISION Y RECEPCION, ACTIVADOS POR MEDIOS DE CONTROL DE ATENUACION (ATTC) QUE RECIBEN SENDAS SEÑALES PROCEDENTES DEL DETECTOR DE ACTIVIDAD DE VOZ Y DEL DETECTOR DE TRAMAS DE SILENCIO PRESENTES EN LOS TERMINALES CELULARES TIPO GSM.
ES09402067A 1994-09-30 1994-09-30 Terminal celular fijo para servicios de telecomunicaciones a dos hilos. Expired - Lifetime ES2101638B1 (es)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES09402067A ES2101638B1 (es) 1994-09-30 1994-09-30 Terminal celular fijo para servicios de telecomunicaciones a dos hilos.
AU30382/95A AU703600B2 (en) 1994-09-30 1995-09-01 A fixed cellular terminal
NZ272929A NZ272929A (en) 1994-09-30 1995-09-05 Fixed terminal interfaces between cellular network and telephone terminal
EP95114186A EP0704988A2 (en) 1994-09-30 1995-09-09 Cellular terminal with echo suppressor
CN95117376A CN1129888A (zh) 1994-09-30 1995-09-29 用于二线式电信业务的固定式蜂窝终端
CA002159577A CA2159577A1 (en) 1994-09-30 1995-09-29 Fixed cellular terminal for two-wire telecommunications services
ZA958232A ZA958232B (en) 1994-09-30 1995-09-29 Fixed cellular terminal for two-wire telecommunications services
JP7253807A JPH08195700A (ja) 1994-09-30 1995-09-29 ２線電気通信サービス用固定セルラ端末装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09402067A ES2101638B1 (es) 1994-09-30 1994-09-30 Terminal celular fijo para servicios de telecomunicaciones a dos hilos.

Publications (2)

Publication Number Publication Date
ES2101638A1 ES2101638A1 (es) 1997-07-01
ES2101638B1 true ES2101638B1 (es) 1998-03-01

Family

ID=8287609

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09402067A Expired - Lifetime ES2101638B1 (es) 1994-09-30 1994-09-30 Terminal celular fijo para servicios de telecomunicaciones a dos hilos.

Country Status (8)

Country Link
EP (1) EP0704988A2 (es)
JP (1) JPH08195700A (es)
CN (1) CN1129888A (es)
AU (1) AU703600B2 (es)
CA (1) CA2159577A1 (es)
ES (1) ES2101638B1 (es)
NZ (1) NZ272929A (es)
ZA (1) ZA958232B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2113320B1 (es) * 1996-05-30 1999-01-16 Alcatel Standard Electrica Dispositivo supresor del eco.
US6163608A (en) * 1998-01-09 2000-12-19 Ericsson Inc. Methods and apparatus for providing comfort noise in communications systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4918725A (en) * 1987-11-25 1990-04-17 Nec Corporation Terminal impedance setting circuit for a two-wire to four-wire converting circuit
GB2245459A (en) * 1990-06-20 1992-01-02 Motorola Inc Echo canceller with adaptive voice switch attenuation
US5249225A (en) * 1991-10-25 1993-09-28 Coherent Communications Systems Corp. Self-balancing hybrid using digitally programmable attenuator for variable impedance elements
US5353348A (en) * 1993-05-14 1994-10-04 Jrc International, Inc. Double echo cancelling system

Also Published As

Publication number Publication date
CA2159577A1 (en) 1996-03-31
CN1129888A (zh) 1996-08-28
EP0704988A2 (en) 1996-04-03
ES2101638A1 (es) 1997-07-01
ZA958232B (en) 1996-04-24
JPH08195700A (ja) 1996-07-30
NZ272929A (en) 1998-08-26
AU3038295A (en) 1996-04-18
AU703600B2 (en) 1999-03-25

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