BR0100384A - Conexão sem fio digital móvel para móvel tendoqualidade de voz aperfeiçoada - Google Patents

Conexão sem fio digital móvel para móvel tendoqualidade de voz aperfeiçoada

Info

Publication number
BR0100384A
BR0100384A BR0100384-4A BR0100384A BR0100384A BR 0100384 A BR0100384 A BR 0100384A BR 0100384 A BR0100384 A BR 0100384A BR 0100384 A BR0100384 A BR 0100384A
Authority
BR
Brazil
Prior art keywords
mobile
voice quality
wireless connection
digital wireless
mobile phone
Prior art date
Application number
BR0100384-4A
Other languages
English (en)
Portuguese (pt)
Inventor
Mahmound Ragaei Sherif
Ahmed A Tarraf
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of BR0100384A publication Critical patent/BR0100384A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • 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
    • G10L19/04—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 using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Function (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
BR0100384-4A 2000-02-14 2001-02-07 Conexão sem fio digital móvel para móvel tendoqualidade de voz aperfeiçoada BR0100384A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/503,990 US7006787B1 (en) 2000-02-14 2000-02-14 Mobile to mobile digital wireless connection having enhanced voice quality

Publications (1)

Publication Number Publication Date
BR0100384A true BR0100384A (pt) 2001-10-30

Family

ID=24004388

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0100384-4A BR0100384A (pt) 2000-02-14 2001-02-07 Conexão sem fio digital móvel para móvel tendoqualidade de voz aperfeiçoada

Country Status (9)

Country Link
US (1) US7006787B1 (enExample)
EP (1) EP1126439B1 (enExample)
JP (1) JP2001272998A (enExample)
KR (1) KR100444418B1 (enExample)
CN (1) CN1309521A (enExample)
AU (1) AU1839001A (enExample)
BR (1) BR0100384A (enExample)
CA (1) CA2330985A1 (enExample)
DE (1) DE60001209T2 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1653515A (zh) * 2002-05-13 2005-08-10 迈恩斯比德技术股份有限公司 在分组网络环境中的语音传输编码
FR2839836B1 (fr) 2002-05-16 2004-09-10 Cit Alcatel Terminal de telecommunication permettant de modifier la voix transmise lors d'une communication telephonique
CN100578616C (zh) * 2003-04-08 2010-01-06 日本电气株式会社 代码转换方法和设备
KR20050044837A (ko) * 2004-06-08 2005-05-13 삼성전자주식회사 디지털 방송 데이터 출력 중 통화기능을 처리하는이동통신단말기 및 그 방법
KR100700595B1 (ko) 2005-10-29 2007-03-28 엘지전자 주식회사 청각특성 변경을 지원하는 휴대단말기 및 그 방법
CN101322423B (zh) * 2005-11-30 2011-12-14 艾利森电话股份有限公司 用于无级联操作信号传送的系统和方法
US20070131653A1 (en) * 2005-12-09 2007-06-14 Ettinger Gary C Methods and apparatus for processing a substrate
US20070171816A1 (en) * 2006-01-20 2007-07-26 Lucent Technologies Inc. Method and apparatus for call reroute based upon QoS
US20070291648A1 (en) * 2006-06-15 2007-12-20 Lucent Technologies Inc. VoIP voice quality remote for switch-to-switch connections
US9426569B2 (en) * 2013-06-13 2016-08-23 Blackberry Limited Audio signal bandwidth to codec bandwidth analysis and response
EP3277016B1 (en) * 2016-07-29 2019-09-11 Rohde & Schwarz GmbH & Co. KG Measurement system and a method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569322B1 (fr) * 1984-08-17 1986-12-05 Trt Telecom Radio Electr Annuleur d'echo utilisant la modulation delta
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
US5694519A (en) 1992-02-18 1997-12-02 Lucent Technologies, Inc. Tunable post-filter for tandem coders
US5790632A (en) * 1994-09-30 1998-08-04 Qualcom Incorporated Method and apparatus for echo canceling accounting for companding induced quantization error
US5903862A (en) * 1995-01-25 1999-05-11 Weaver, Jr.; Lindsay A. Method and apparatus for detection of tandem vocoding to modify vocoder filtering
JPH08202399A (ja) * 1995-01-27 1996-08-09 Kyocera Corp 復号音声の後処理方法
JP3426871B2 (ja) * 1995-09-18 2003-07-14 株式会社東芝 音声信号のスペクトル形状調整方法および装置
JP3157116B2 (ja) * 1996-03-29 2001-04-16 三菱電機株式会社 音声符号化伝送システム
KR100233463B1 (ko) * 1997-03-07 1999-12-01 윤종용 반향제거장치 및 방법
GB9706174D0 (en) 1997-03-25 1997-11-19 Secr Defence Recognition system
US5995923A (en) * 1997-06-26 1999-11-30 Nortel Networks Corporation Method and apparatus for improving the voice quality of tandemed vocoders
CN1134904C (zh) * 1997-09-10 2004-01-14 塞尔隆法国股份有限公司 通信系统和终端
US6347141B1 (en) * 1998-08-03 2002-02-12 Conexant Systems, Inc. Method of and apparatus for adaptation of an echo canceller in a system with multitasking
US6434235B1 (en) * 2000-08-01 2002-08-13 Lucent Technologies Inc. Acoustic echo canceler

Also Published As

Publication number Publication date
DE60001209D1 (de) 2003-02-20
KR100444418B1 (ko) 2004-08-16
CN1309521A (zh) 2001-08-22
EP1126439A3 (en) 2001-08-29
CA2330985A1 (en) 2001-08-14
US7006787B1 (en) 2006-02-28
DE60001209T2 (de) 2003-11-13
EP1126439B1 (en) 2003-01-15
KR20010082625A (ko) 2001-08-30
JP2001272998A (ja) 2001-10-05
EP1126439A2 (en) 2001-08-22
AU1839001A (en) 2001-08-16

Similar Documents

Publication Publication Date Title
BR0100384A (pt) Conexão sem fio digital móvel para móvel tendoqualidade de voz aperfeiçoada
DE60038545D1 (de) Anordnung zur verbesserung der sprachqualität für voice-over-ip-(voip)-anrufe
CN1171202C (zh) 噪声抑制
AU695980B1 (en) Hands-free telephone
ATE348385T1 (de) Spektralmerkmal ersatz für die verschleierung von rahmenfehlern in einem sprachdekoder
BR9813791A (pt) Dispositivo de supressão de eco
ATE43467T1 (de) Radiotelephon mit freisprechbetrieb.
EP1672898A3 (en) Method of providing feedback to an end user device of a voice conference
EP0748138A3 (en) Method of transporting speech information in a wireless cellular system
US8363820B1 (en) Headset with whisper mode feature
BR9408065A (pt) Processos para in invocar e cancelar serviço de dados e vocal em uma unidade móvel e para estabelecer comunicações em um sistema dotado de uma unidade móvel e uma estação de base
US10154148B1 (en) Audio echo cancellation with robust double-talk detection in a conferencing environment
US5617472A (en) Noise suppression of acoustic signal in telephone set
US20050055116A1 (en) Method and apparatus for audio coding with noise suppression
EP0804011A3 (en) Hands-free communication apparatus
US10819857B1 (en) Minimizing echo due to speaker-to-microphone coupling changes in an acoustic echo canceler
CN1729678A (zh) 只用上行链路用户数据流部分代码转换对压缩语言进行回声抑制
CN203632834U (zh) 一种隔音话务耳机
BRPI0605914A2 (pt) sinalização em banda concomitante para comunicações de dados através de rede de telecomunicações sem fio digital
KR20010081857A (ko) 디지탈 휴대용 전화기의 잡음제거장치
GB2349557A (en) Method and apparatus for cancelling echo originating from a mobile terminal
US6711259B1 (en) Method and apparatus for noise suppression and side-tone generation
CN202127439U (zh) 一种免提电路和终端
JP2006287886A (ja) 携帯電話用消音会話マスク
ATE296516T1 (de) Schallzutritt eines mikrofones , insbesondere für einen telefonhörer

Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/26 (2013.01), G10L 21/0364 (2013.01)