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ES2037128T3 - Circuito de control de voz para un terminal de telecomunicaciones. - Google Patents

Circuito de control de voz para un terminal de telecomunicaciones.

Info

Publication number
ES2037128T3
ES2037128T3 ES198888107205T ES88107205T ES2037128T3 ES 2037128 T3 ES2037128 T3 ES 2037128T3 ES 198888107205 T ES198888107205 T ES 198888107205T ES 88107205 T ES88107205 T ES 88107205T ES 2037128 T3 ES2037128 T3 ES 2037128T3
Authority
ES
Spain
Prior art keywords
signal level
amplification
intercom
default signal
course
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
ES198888107205T
Other languages
English (en)
Inventor
Michael Walker
Gunter Kohler
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.)
Alcatel Lucent NV
Original Assignee
Alcatel NV
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
Priority claimed from DE19873724346 external-priority patent/DE3724346A1/de
Priority claimed from DE19883805357 external-priority patent/DE3805357A1/de
Application filed by Alcatel NV filed Critical Alcatel NV
Application granted granted Critical
Publication of ES2037128T3 publication Critical patent/ES2037128T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

LA DISPOSICION DE CONEXION SIRVE PARA LA DIRECCION DE LA DINAMICA DE LA SEÑAL DEL HABLA EN UN DISPOSITIVO TERMINAL DE LA TELECOMUNICACION, POR EJEMPLO EN UN TELEFONO CON IMAGEN CON INTERCOMUNICADOR A VIVA VOZ. EN UN INTERCOMUNICADOR A VIVA VOZ LA RELACION DE RUIDOS ES MAS ESCASA QUE EN EL TELEFONO CON AURICULAR. PARA EVITAR UN SILBATO DE REACOPLAMIENTO MUESTRA EL INTERCOMUNICADOR CONOCIDO UNA DIRECCION DINAMICA, DONDE EN AUMENTO O REDUCCION DE LA AMPLIFICACION EN EL TRANSCURSO DE LA EMISION SE REDUCE O AMPLIA LA AMPLIFICACION EN EL TRANSCURSO DE RECEPCION EN PERIMETRO IGUAL. EL PROBLEMA ES USAR EL AMPLIFICADOR DE CIRCUITOS SIN REDUCIR LA AMPLIFICACION EN EL TRANSCURSO DE RECEPCION. LA IDEA ES CONECTAR AL MICROFONO (50) POSTERIORMENTE UN COMPARADOR DINAMICO (52), DONDE SE COMPRIMEN LAS TENSIONES DE SEÑAL (A) PROCEDENTES DEL MICROFONO (50), SI SE SITUAN SOBRE UN NIVEL DE SEÑAL PREDETERMINADO, B SE EXPANSIONAN, SI SE SITUAN POR DEBAJO DEL NIVEL DE SEÑAL PREDETERMINADO Y C SE AMPLIFICAN MAXIMALMENTE, SI SE MUESTRA EL NIVEL DE SEÑAL PREDETERMINADO. EL NIVEL DE SEÑAL PREDETERMINADO, QUE CORRESPONDE AL PUNTO DE APLICACION DE LA COMPRESION, SE AJUSTA A TRAVES DE UNA CONEXION DIRIGIDA (90) EN DEPENDENCIA DEL RUIDO DEL AMBIENTE.
ES198888107205T 1987-05-15 1988-05-05 Circuito de control de voz para un terminal de telecomunicaciones. Expired - Lifetime ES2037128T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3716246 1987-05-15
DE19873724346 DE3724346A1 (de) 1987-05-15 1987-07-23 Schaltungsanordnung zur dynamiksteuerung
DE19883805357 DE3805357A1 (de) 1987-07-23 1988-02-20 Schaltungsanordnung zur dynamiksteuerung von sprachsignalen

Publications (1)

Publication Number Publication Date
ES2037128T3 true ES2037128T3 (es) 1993-06-16

Family

ID=27195936

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888107205T Expired - Lifetime ES2037128T3 (es) 1987-05-15 1988-05-05 Circuito de control de voz para un terminal de telecomunicaciones.

Country Status (8)

Country Link
US (1) US4891837A (es)
EP (1) EP0290952B1 (es)
JP (1) JPS63314943A (es)
CN (1) CN1012121B (es)
AU (1) AU604544B2 (es)
CA (1) CA1282511C (es)
DE (1) DE3875650D1 (es)
ES (1) ES2037128T3 (es)

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DE4130045A1 (de) * 1991-09-10 1993-03-18 Standard Elektrik Lorenz Ag Schaltungsanordnung zur dynamiksteuerung eines sprachendgeraetes
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JPH06216986A (ja) * 1993-01-19 1994-08-05 Mitsubishi Electric Corp ハンズフリー通話回路
DE4305256A1 (de) * 1993-02-20 1994-08-25 Sel Alcatel Ag Verfahren zum Verbessern der akustischen Rückhördämpfung von elektroakustischen Anlagen
US5485522A (en) * 1993-09-29 1996-01-16 Ericsson Ge Mobile Communications, Inc. System for adaptively reducing noise in speech signals
US5467393A (en) * 1993-11-24 1995-11-14 Ericsson Inc. Method and apparatus for volume and intelligibility control for a loudspeaker
US5471527A (en) * 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
US5485515A (en) * 1993-12-29 1996-01-16 At&T Corp. Background noise compensation in a telephone network
US5526419A (en) * 1993-12-29 1996-06-11 At&T Corp. Background noise compensation in a telephone set
JPH07297900A (ja) * 1994-04-26 1995-11-10 Mitsubishi Electric Corp 騒音対策通話機
JP2845130B2 (ja) * 1994-05-13 1999-01-13 日本電気株式会社 通信装置
JPH0823373A (ja) * 1994-07-08 1996-01-23 Kokusai Electric Co Ltd 通話器回路
JP2606171B2 (ja) * 1994-12-12 1997-04-30 日本電気株式会社 受話音量自動可変回路
DE19517469A1 (de) * 1995-05-12 1996-11-14 Sel Alcatel Ag Freisprechverfahren für ein mehrkanaliges Übertragungssystem
US5631968A (en) * 1995-06-06 1997-05-20 Analog Devices, Inc. Signal conditioning circuit for compressing audio signals
AU715800B2 (en) * 1995-12-29 2000-02-10 Em Microelectronic-Marin Sa Active rectifier having minimal energy losses
US5966438A (en) * 1996-03-05 1999-10-12 Ericsson Inc. Method and apparatus for adaptive volume control for a radiotelephone
DE19611548A1 (de) * 1996-03-23 1997-09-25 Sel Alcatel Ag Verfahren und Schaltungsanordnung zur Verbesserung der Übertragungseigenschaften einer echobehafteten Übertragungsstrecke in einem Telekommunikationsnetz
US5793315A (en) * 1996-05-31 1998-08-11 Motorola, Inc. Bit-serial digital expandor
US6766176B1 (en) 1996-07-23 2004-07-20 Qualcomm Incorporated Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone
US5903655A (en) * 1996-10-23 1999-05-11 Telex Communications, Inc. Compression systems for hearing aids
CN1249053A (zh) * 1997-10-28 2000-03-29 皇家菲利浦电子有限公司 改进的声频再现装置和电话终端设备
US6807280B1 (en) * 1998-01-26 2004-10-19 Delphi Technologies, Inc. Audio signal processing circuit for reducing noise in an audio signal
DE19815942A1 (de) 1998-04-09 1999-10-14 Cit Alcatel Vielkanal-Echocanceller mit Compander
EP1811660B1 (en) * 1999-03-30 2013-10-09 Qualcomm Incorporated Method and apparatus for automatically adjusting speaker gain within a mobile telephone
HK1049927B (zh) * 1999-03-30 2005-05-13 高通股份有限公司 移動電話內揚聲器及話筒增益的自動調節方法和裝置
GB2350969B (en) 1999-06-07 2003-11-05 Ericsson Telefon Ab L M Loudspeaker volume range control
US7027981B2 (en) 1999-11-29 2006-04-11 Bizjak Karl M System output control method and apparatus
US7190292B2 (en) * 1999-11-29 2007-03-13 Bizjak Karl M Input level adjust system and method
US6870830B1 (en) 2000-11-30 2005-03-22 3Com Corporation System and method for performing messaging services using a data communications channel in a data network telephone system
WO2003003572A1 (en) * 2001-06-28 2003-01-09 Danacom A/S Volume control in a communication device interface unit
JP2005056172A (ja) * 2003-08-05 2005-03-03 Yaskawa Electric Corp サーボ制御装置の最大ゲイン抽出方法
CN100365705C (zh) * 2004-03-01 2008-01-30 普立尔科技股份有限公司 解决音效录放装置破音现象的方法及装置
JP4667980B2 (ja) * 2005-06-30 2011-04-13 株式会社日立国際電気 無線通信システム
KR100638337B1 (ko) * 2005-09-05 2006-10-24 주식회사 비손하이테크 주변소음 제거장치 및 방법과 이를 구비한 이동통신 단말기
US20070237334A1 (en) * 2006-04-11 2007-10-11 Willins Bruce A System and method for enhancing audio output of a computing terminal
US8249271B2 (en) * 2007-01-23 2012-08-21 Karl M. Bizjak Noise analysis and extraction systems and methods
JP4580409B2 (ja) * 2007-06-11 2010-11-10 富士通株式会社 音量制御装置および方法
CN103155409B (zh) 2010-09-15 2016-01-06 索诺瓦公司 用于向用户提供听力辅助的方法与系统
DE102012200017A1 (de) * 2012-01-02 2013-07-04 Robert Bosch Gmbh Vorrichtung zur Erfassung von analogen Signalen sowie Verfahren zum Betreiben der Vorrichtung
CN108337604B (zh) * 2018-02-12 2024-08-02 广州酷狗计算机科技有限公司 音频系统及音频控制方法

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US3963868A (en) * 1974-06-27 1976-06-15 Stromberg-Carlson Corporation Loudspeaking telephone hysteresis and ambient noise control
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DE2619192A1 (de) * 1976-04-30 1977-11-17 Licentia Gmbh Schaltung zur automatischen dynamik-kompression oder -expansion
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US4240037A (en) * 1979-06-06 1980-12-16 Hughes Aircraft Company Homomorphic automatic gain control
FR2481550B1 (fr) * 1980-04-25 1985-08-02 Trt Telecom Radio Electr Dispositif de protection contre l'effet larsen dans un poste telephonique a haut-parleur
DE3261682D1 (en) * 1981-05-08 1985-02-07 Trt Telecom Radio Electr Device for avoiding sustained disturbing oscillations in a closed-loop system and loud-speaking telephone apparatus utilising this device
US4550426A (en) * 1981-12-31 1985-10-29 Motorola, Inc. Method and means of detecting the presence of a signal representing voice and of compressing the level of the signal
US4543665A (en) * 1982-07-13 1985-09-24 Plantronics, Inc. Speakerphone with wireless infrared microphone
JPS5977710A (ja) * 1982-10-02 1984-05-04 Fujitsu Ltd マイクロホン増巾回路
JPS59230356A (ja) * 1983-06-14 1984-12-24 Matsushita Electric Ind Co Ltd ハンドフリ−通話装置
GB2161047B (en) * 1984-06-28 1987-09-16 Stc Plc Improvements in telephone instruments
US4677678A (en) * 1984-07-10 1987-06-30 The United States Of America As Represented By The Department Of Health And Human Services Active hearing protectors
US4696032A (en) * 1985-02-26 1987-09-22 Siemens Corporate Research & Support, Inc. Voice switched gain system
JPH054334Y2 (es) * 1985-07-16 1993-02-03
US4718099A (en) * 1986-01-29 1988-01-05 Telex Communications, Inc. Automatic gain control for hearing aid

Also Published As

Publication number Publication date
EP0290952A3 (en) 1989-10-04
JPH0477497B2 (es) 1992-12-08
EP0290952A2 (de) 1988-11-17
EP0290952B1 (de) 1992-11-04
DE3875650D1 (de) 1992-12-10
AU1617788A (en) 1988-11-17
US4891837A (en) 1990-01-02
AU604544B2 (en) 1990-12-20
CN1012121B (zh) 1991-03-20
CA1282511C (en) 1991-04-02
JPS63314943A (ja) 1988-12-22
CN88102826A (zh) 1988-11-30

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