ES8702757A1 - Sistema de conmutacion de paquetes - Google Patents

Sistema de conmutacion de paquetes

Info

Publication number
ES8702757A1
ES8702757A1 ES552947A ES552947A ES8702757A1 ES 8702757 A1 ES8702757 A1 ES 8702757A1 ES 552947 A ES552947 A ES 552947A ES 552947 A ES552947 A ES 552947A ES 8702757 A1 ES8702757 A1 ES 8702757A1
Authority
ES
Spain
Prior art keywords
speech
packets
packet
path
switching system
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
ES552947A
Other languages
English (en)
Other versions
ES552947A0 (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.)
British Telecommunications PLC
STC PLC
Original Assignee
British Telecommunications PLC
STC PLC
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 British Telecommunications PLC, STC PLC filed Critical British Telecommunications PLC
Publication of ES8702757A1 publication Critical patent/ES8702757A1/es
Publication of ES552947A0 publication Critical patent/ES552947A0/es
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

SISTEMA DE CONMUTACION DE PAQUETES. COMPRENDE UN PRIMER DETECTOR DE ACTIVIDAD VOCAL (VAD) (2) ASOCIADO CON EL CIRDCUITO DE IDA (GO) DEL SISTEMA PARA DETERMINAR LA AMPLITUD DE LA SEÑAL APROPIADA PARA CADA PAQUETE DE PALABRA EN ESTE CIRCUITO, EN EL CUAL UN SEGUNDO (VAD) (3) ESTA ASOCIADO CON EL CIRCUITO DE RETORNO (RETURN) DEL SISTEMA PARA DETERMINAR LA AMPLITUD DE LA SEÑAL APROPIADA PARA CADA PAQUETE DE PALABRAS EN EL CIRCUITO DE RETORNO, EN EL CUAL ESTA SITUADO UN DISPOSITIVO DE CONTROL (4) QUE COMPARA EL NIVEL CORRIENTE DE LOS PAQUETES DE PALABRAS EN EL CIRCUITO DE IDA CON: I) EL VALOR DE CORRIENTE DEL RUIDO DE FONDO. TIENE UTILIDAD COMO SISTEMA DE TRANSMISION DEL TIPO DESCENTRALIZADO.
ES552947A 1985-03-13 1986-03-12 Sistema de conmutacion de paquetes Expired ES8702757A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08506528A GB2172475B (en) 1985-03-13 1985-03-13 Packet switching system

Publications (2)

Publication Number Publication Date
ES8702757A1 true ES8702757A1 (es) 1986-12-16
ES552947A0 ES552947A0 (es) 1986-12-16

Family

ID=10575934

Family Applications (1)

Application Number Title Priority Date Filing Date
ES552947A Expired ES8702757A1 (es) 1985-03-13 1986-03-12 Sistema de conmutacion de paquetes

Country Status (3)

Country Link
EP (1) EP0194785A3 (es)
ES (1) ES8702757A1 (es)
GB (1) GB2172475B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256351B (en) * 1991-05-25 1995-07-05 Motorola Inc Enhancement of echo return loss
US5410632A (en) * 1991-12-23 1995-04-25 Motorola, Inc. Variable hangover time in a voice activity detector
JP2002533770A (ja) * 1998-12-22 2002-10-08 エリクソン インコーポレイテッド 音声記録システムに対する記憶要求条件を低減する方法および装置
US6920219B2 (en) * 2002-05-31 2005-07-19 Motorola, Inc. Method and apparatus for providing echo cancellation
GB2412278B (en) * 2004-03-16 2006-06-14 Motorola Inc Method and apparatus for classifying importance of encoded frames in a digital communications system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882458A (en) * 1974-03-27 1975-05-06 Gen Electric Voice operated switch including apparatus for establishing a variable threshold noise level

Also Published As

Publication number Publication date
GB2172475A (en) 1986-09-17
EP0194785A3 (en) 1988-03-30
ES552947A0 (es) 1986-12-16
EP0194785A2 (en) 1986-09-17
GB8506528D0 (en) 1985-04-17
GB2172475B (en) 1988-09-01

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960506