FI120568B - Monituloinen langaton puhelin,johon kuuluu kaiunpoisto - Google Patents

Monituloinen langaton puhelin,johon kuuluu kaiunpoisto Download PDF

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Publication number
FI120568B
FI120568B FI991937A FI19991937A FI120568B FI 120568 B FI120568 B FI 120568B FI 991937 A FI991937 A FI 991937A FI 19991937 A FI19991937 A FI 19991937A FI 120568 B FI120568 B FI 120568B
Authority
FI
Finland
Prior art keywords
echo
signal
adder
speaker
digital
Prior art date
Application number
FI991937A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI19991937A7 (fi
Inventor
Gilbert C Sih
Samir Kumar Gupta
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of FI19991937A7 publication Critical patent/FI19991937A7/fi
Application granted granted Critical
Publication of FI120568B publication Critical patent/FI120568B/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/015—Reducing echo effects
    • 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
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • 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
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
FI991937A 1997-03-19 1999-09-10 Monituloinen langaton puhelin,johon kuuluu kaiunpoisto FI120568B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US82093497 1997-03-19
US08/820,934 US5999828A (en) 1997-03-19 1997-03-19 Multi-user wireless telephone having dual echo cancellers
PCT/US1998/005372 WO1998042084A1 (en) 1997-03-19 1998-03-18 Multi-input wireless phone with echo suppression
US9805372 1998-03-18

Publications (2)

Publication Number Publication Date
FI19991937A7 FI19991937A7 (fi) 1999-11-19
FI120568B true FI120568B (fi) 2009-11-30

Family

ID=25232090

Family Applications (1)

Application Number Title Priority Date Filing Date
FI991937A FI120568B (fi) 1997-03-19 1999-09-10 Monituloinen langaton puhelin,johon kuuluu kaiunpoisto

Country Status (16)

Country Link
US (1) US5999828A (de)
EP (1) EP0968572B1 (de)
JP (1) JP2001516539A (de)
KR (1) KR20000076309A (de)
CN (1) CN1135729C (de)
AT (1) ATE334513T1 (de)
AU (1) AU741749B2 (de)
BR (1) BR9808372A (de)
CA (1) CA2283707A1 (de)
DE (1) DE69835347T2 (de)
ES (1) ES2267180T3 (de)
FI (1) FI120568B (de)
ID (1) ID24156A (de)
IL (1) IL131769A (de)
RU (1) RU2199180C2 (de)
WO (1) WO1998042084A1 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3139405B2 (ja) * 1997-02-28 2001-02-26 日本電気株式会社 エコーキャンセラ
US6633604B1 (en) * 1997-08-11 2003-10-14 Vocal Technologies, Ltd. Method of improving echo canceller training in modems and of discovering characteristics of a PCM channel
US6731748B1 (en) * 1998-11-30 2004-05-04 Qualcomm Incorporated Audio interface for satellite user terminals
KR100407938B1 (ko) * 1999-10-11 2003-12-01 엘지전자 주식회사 이동통신시스템의 음성처리장치
AU1359601A (en) 1999-11-03 2001-05-14 Tellabs Operations, Inc. Integrated voice processing system for packet networks
US20020181699A1 (en) * 2001-03-23 2002-12-05 Tien Pham System for convolutional echo cancellation by iterative autocorrelation
US6895086B2 (en) * 2001-11-13 2005-05-17 Inmate Telephone, Inc. 3-Way call detection system and method
KR20030052708A (ko) * 2001-12-21 2003-06-27 엘지전자 주식회사 일체형 무선 가입자 망 시스템
US20040224645A1 (en) * 2003-05-07 2004-11-11 Ching Liou Chih Phone handset with wireless technology
CA2534767A1 (en) * 2003-08-05 2005-03-17 Inmate Telephone, Inc. Three-way call detection using steganography
US20050285935A1 (en) * 2004-06-29 2005-12-29 Octiv, Inc. Personal conferencing node
US7860236B2 (en) * 2007-02-01 2010-12-28 Hewlet-Packard Company Method and system for echo cancellation in a network switch
US20080201158A1 (en) 2007-02-15 2008-08-21 Johnson Mark D System and method for visitation management in a controlled-access environment
US8542802B2 (en) 2007-02-15 2013-09-24 Global Tel*Link Corporation System and method for three-way call detection
US8526645B2 (en) 2007-05-04 2013-09-03 Personics Holdings Inc. Method and device for in ear canal echo suppression
US11856375B2 (en) 2007-05-04 2023-12-26 Staton Techiya Llc Method and device for in-ear echo suppression
US11683643B2 (en) 2007-05-04 2023-06-20 Staton Techiya Llc Method and device for in ear canal echo suppression
US10194032B2 (en) 2007-05-04 2019-01-29 Staton Techiya, Llc Method and apparatus for in-ear canal sound suppression
US8411871B2 (en) * 2007-08-22 2013-04-02 Lantiq Deutschland Gmbh Echo cancellation
US8630685B2 (en) * 2008-07-16 2014-01-14 Qualcomm Incorporated Method and apparatus for providing sidetone feedback notification to a user of a communication device with multiple microphones
US9202455B2 (en) * 2008-11-24 2015-12-01 Qualcomm Incorporated Systems, methods, apparatus, and computer program products for enhanced active noise cancellation
US8498407B2 (en) * 2008-12-02 2013-07-30 Qualcomm Incorporated Systems and methods for double-talk detection in acoustically harsh environments
CN102341105B (zh) 2009-02-03 2014-09-17 微生物公司 用作上皮组织、急性和慢性伤口、细菌生物被膜和其他适应症的抗菌剂的铋硫醇
US9028878B2 (en) 2009-02-03 2015-05-12 Microbion Corporation Bismuth-thiols as antiseptics for biomedical uses, including treatment of bacterial biofilms and other uses
US8630726B2 (en) 2009-02-12 2014-01-14 Value-Added Communications, Inc. System and method for detecting three-way call circumvention attempts
US9225838B2 (en) 2009-02-12 2015-12-29 Value-Added Communications, Inc. System and method for detecting three-way call circumvention attempts
US20100304679A1 (en) * 2009-05-28 2010-12-02 Hanks Zeng Method and System For Echo Estimation and Cancellation
EP2536406A4 (de) * 2010-02-03 2014-04-09 Microbion Corp Wismut-thiole als antiseptika zur biomedizinischen verwendung einschliesslich behandlung bakterieller biofilme und anderer verwendungen
KR20200015814A (ko) * 2010-02-03 2020-02-12 마이크로비온 코포레이션 세균 균막의 치료 및 다른 용도를 포함하는, 생의학적 용도를 위한 방부제로서 비스무트-티올
EP2444967A1 (de) * 2010-10-25 2012-04-25 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Echounterdrückung mit Modellierung verzögerter Nachhallkomponenten
US10572961B2 (en) 2016-03-15 2020-02-25 Global Tel*Link Corporation Detection and prevention of inmate to inmate message relay
US9609121B1 (en) 2016-04-07 2017-03-28 Global Tel*Link Corporation System and method for third party monitoring of voice and video calls
JP6650607B2 (ja) * 2017-03-16 2020-02-19 パナソニックＩｐマネジメント株式会社 音響エコー抑圧装置及び音響エコー抑圧方法
US10027797B1 (en) 2017-05-10 2018-07-17 Global Tel*Link Corporation Alarm control for inmate call monitoring
US10225396B2 (en) 2017-05-18 2019-03-05 Global Tel*Link Corporation Third party monitoring of a activity within a monitoring platform
US10860786B2 (en) 2017-06-01 2020-12-08 Global Tel*Link Corporation System and method for analyzing and investigating communication data from a controlled environment
US9930088B1 (en) 2017-06-22 2018-03-27 Global Tel*Link Corporation Utilizing VoIP codec negotiation during a controlled environment call
WO2020028558A1 (en) 2018-07-31 2020-02-06 Microbion Corporation Bismuth-thiol compositions and methods of use
CN112788950A (zh) 2018-07-31 2021-05-11 微生物公司 用于治疗伤口的铋-硫醇组合物和方法
KR102172608B1 (ko) * 2019-05-02 2020-11-02 남서울대학교 산학협력단 동시통화에 강인한 심층학습 기반 음향반향 제거 장치 및 그 방법

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712235A (en) * 1984-11-19 1987-12-08 International Business Machines Corporation Method and apparatus for improved control and time sharing of an echo canceller
US4629829A (en) * 1984-12-14 1986-12-16 Motorola, Inc. Full duplex speakerphone for radio and landline telephones
JPH0650829B2 (ja) * 1986-09-16 1994-06-29 日本電気株式会社 エコ−キヤンセラ方式モデム
US4890315A (en) * 1987-03-20 1989-12-26 Orion Industries, Inc. Cellular remote station with multiple coupled units
GB2213686A (en) * 1987-12-09 1989-08-16 Racal Communications Equip Radio telephone terminal unit
US4912758A (en) * 1988-10-26 1990-03-27 International Business Machines Corporation Full-duplex digital speakerphone
JP2842607B2 (ja) * 1989-03-13 1999-01-06 株式会社日立製作所 エコーキャンセラ、それを備えた通信装置および信号処理方法
RU2011298C1 (ru) * 1991-04-23 1994-04-15 Омский Институт Инженеров Железнодорожного Транспорта Устройство снижения уровня помех в аппаратуре связи
GB2258370B (en) * 1991-08-02 1995-09-06 Technophone Ltd Cellular telephone
US5206854A (en) * 1991-09-24 1993-04-27 At&T Bell Laboratories Detecting loss of echo cancellation
US5271057A (en) * 1991-10-09 1993-12-14 Bell Communications Research, Inc. Audio processing system for teleconferencing system
JP2792311B2 (ja) * 1992-01-31 1998-09-03 日本電気株式会社 多チャンネルエコー除去方法および装置
US5307405A (en) * 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
US5546459A (en) * 1993-11-01 1996-08-13 Qualcomm Incorporated Variable block size adaptation algorithm for noise-robust acoustic echo cancellation
US5381475A (en) * 1993-12-02 1995-01-10 At&T Corp. Arrangement for suppressing echoes in a digital portable telephone
US5577097A (en) * 1994-04-14 1996-11-19 Northern Telecom Limited Determining echo return loss in echo cancelling arrangements
JP2550914B2 (ja) * 1994-06-21 1996-11-06 日本電気株式会社 折りたたみ型携帯電話装置
US5812951A (en) * 1994-11-23 1998-09-22 Hughes Electronics Corporation Wireless personal communication system
US5553137A (en) * 1994-12-05 1996-09-03 Motorola, Inc. Method and apparatus for echo canceling in a communication system
SE516006C2 (sv) * 1995-01-10 2001-11-05 Ericsson Telefon Ab L M Kommunikationssystem för ett företag/organisation
US5852661A (en) * 1995-02-17 1998-12-22 Advanced Micro Devices, Inc. Adaptive echo cancellation used with echo suppression to reduce short and long duration echoes
JP2856113B2 (ja) * 1995-07-10 1999-02-10 日本電気株式会社 エコーキャンセラ
US5649012A (en) * 1995-09-15 1997-07-15 Hughes Electronics Method for synthesizing an echo path in an echo canceller

Also Published As

Publication number Publication date
FI19991937A7 (fi) 1999-11-19
EP0968572B1 (de) 2006-07-26
AU741749B2 (en) 2001-12-06
ID24156A (id) 2000-07-13
BR9808372A (pt) 2000-05-23
WO1998042084A1 (en) 1998-09-24
JP2001516539A (ja) 2001-09-25
US5999828A (en) 1999-12-07
DE69835347T2 (de) 2007-07-26
KR20000076309A (ko) 2000-12-26
CN1135729C (zh) 2004-01-21
EP0968572A1 (de) 2000-01-05
RU2199180C2 (ru) 2003-02-20
ES2267180T3 (es) 2007-03-01
CN1253677A (zh) 2000-05-17
IL131769A (en) 2002-11-10
ATE334513T1 (de) 2006-08-15
DE69835347D1 (de) 2006-09-07
AU6567898A (en) 1998-10-12
CA2283707A1 (en) 1998-09-24
IL131769A0 (en) 2001-03-19

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