BE372732A - - Google Patents

Info

Publication number
BE372732A
BE372732A BE372732DA BE372732A BE 372732 A BE372732 A BE 372732A BE 372732D A BE372732D A BE 372732DA BE 372732 A BE372732 A BE 372732A
Authority
BE
Belgium
Prior art keywords
currents
crosstalk
installation according
incomprehensible
lines
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE372732A publication Critical patent/BE372732A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/738Interface circuits for coupling substations to external telephone lines
    • H04M1/74Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
BE372732D BE372732A (forum.php)

Publications (1)

Publication Number Publication Date
BE372732A true BE372732A (forum.php)

Family

ID=43787

Family Applications (1)

Application Number Title Priority Date Filing Date
BE372732D BE372732A (forum.php)

Country Status (1)

Country Link
BE (1) BE372732A (forum.php)

Similar Documents

Publication Publication Date Title
US7664243B2 (en) 3-way call detection system and method
US5333195A (en) Telephone network speech signal enhancement
US6453153B1 (en) Employing customer premises equipment in communications network maintenance
US20050175189A1 (en) Dual microphone communication device for teleconference
JPH09506220A (ja) 音声品質向上システムおよび方法
BE372732A (forum.php)
FR2522229A1 (fr) Circuit de transmission pour appareil telephonique electronique
JP2002521794A (ja) 録音及び再生装置におけるオーディオ信号用、較正できる接続ケーブル
EP2180720B1 (en) Apparatus for preventing leakage of a weak signal from a speaker
EP0924866A1 (fr) Système de transmission comportant au moins une station satellite et une station de raccordement, station comportant un dispositif de correction de message de parole et procédé pour améliorer la qualité des messages de parole
BE470231A (forum.php)
BE371072A (forum.php)
BE396183A (forum.php)
FR2697392A1 (fr) Dispositif de protection, notamment pour installation de commutation connectée à une ligne téléphonique.
CH192252A (fr) Installation de télécommunication.
RADIO-TELEGRAPHY ON THE ADVANTAGES OF Ahigh SPARK FREQUENCY
Jeong et al. Acoustic Channel Decorrelation with Phase Modification for Stereo Acoustic Echo Cancellation
US320987A (en) Franqois van eysselbeeghe
Brennan et al. North-Eastern Section discussion on “Some engineering aspects of audio frequency wire broadcasting in Great Britain”
Brokx Echoes on Speech Transmission Lines
Codd Transmission rating of telephone systems
Clark Wide band transmission over balanced circuits
JP2003060469A (ja) 分岐回路
BE569264A (forum.php)
BE440098A (forum.php)