DE69731133D1 - Übertragungssystem für korrelierte Signale - Google Patents

Übertragungssystem für korrelierte Signale

Info

Publication number
DE69731133D1
DE69731133D1 DE1997631133 DE69731133T DE69731133D1 DE 69731133 D1 DE69731133 D1 DE 69731133D1 DE 1997631133 DE1997631133 DE 1997631133 DE 69731133 T DE69731133 T DE 69731133T DE 69731133 D1 DE69731133 D1 DE 69731133D1
Authority
DE
Germany
Prior art keywords
transmission system
correlated signals
correlated
signals
transmission
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 - Fee Related
Application number
DE1997631133
Other languages
English (en)
Other versions
DE69731133T2 (de
Inventor
Yannick Deville
Jean-Christophe Boissy
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics 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
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69731133D1 publication Critical patent/DE69731133D1/de
Application granted granted Critical
Publication of DE69731133T2 publication Critical patent/DE69731133T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • G10L21/0272—Voice signal separating
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Quality & Reliability (AREA)
  • Otolaryngology (AREA)
  • Computational Linguistics (AREA)
  • General Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Stereophonic System (AREA)
DE69731133T 1996-01-23 1997-01-16 Übertragungssystem für korrelierte Signale Expired - Fee Related DE69731133T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9600752 1996-01-23
FR9600752 1996-01-23

Publications (2)

Publication Number Publication Date
DE69731133D1 true DE69731133D1 (de) 2004-11-18
DE69731133T2 DE69731133T2 (de) 2006-02-23

Family

ID=9488381

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69731133T Expired - Fee Related DE69731133T2 (de) 1996-01-23 1997-01-16 Übertragungssystem für korrelierte Signale

Country Status (6)

Country Link
US (1) US6256394B1 (de)
EP (1) EP0786920B1 (de)
JP (1) JPH09204195A (de)
KR (1) KR100455968B1 (de)
DE (1) DE69731133T2 (de)
SG (1) SG55269A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6151397A (en) * 1997-05-16 2000-11-21 Motorola, Inc. Method and system for reducing undesired signals in a communication environment
US7245710B1 (en) * 1998-04-08 2007-07-17 British Telecommunications Public Limited Company Teleconferencing system
US6865229B1 (en) * 1999-12-14 2005-03-08 Koninklijke Philips Electronics N.V. Method and apparatus for reducing the “blocky picture” effect in MPEG decoded images
JP2005084253A (ja) * 2003-09-05 2005-03-31 Matsushita Electric Ind Co Ltd 音響処理装置、方法、プログラム及び記憶媒体
KR100647286B1 (ko) 2004-08-14 2006-11-23 삼성전자주식회사 교차채널 간섭을 제거하기 위한 후처리장치 및 방법과이를 이용한 다채널 음원 분리장치 및 방법
EP2009891B1 (de) * 2007-06-26 2019-01-16 Orange Übertragung eines Audiosignals in einem immersiven Audiokonferenzsystem

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219140B (en) * 1984-09-29 1990-03-28 Standard Telephones Cables Ltd Adaptive antenna array
US4774682A (en) * 1986-03-27 1988-09-27 Rockwell International Corporation Nonlinear statistical signal processor
DE3840433A1 (de) * 1988-12-01 1990-06-07 Philips Patentverwaltung Echokompensator
US5208786A (en) 1991-08-28 1993-05-04 Massachusetts Institute Of Technology Multi-channel signal separation
KR930011475A (ko) * 1991-11-26 1993-06-24 정용문 차량 전화기의 에코제거 회로 및 방식
JP3306600B2 (ja) * 1992-08-05 2002-07-24 三菱電機株式会社 自動音量調整装置
JP2508574B2 (ja) 1992-11-10 1996-06-19 日本電気株式会社 多チャンネルエコ―除去装置
US5361303A (en) * 1993-04-01 1994-11-01 Noise Cancellation Technologies, Inc. Frequency domain adaptive control system
WO1995002239A1 (en) * 1993-07-07 1995-01-19 Picturetel Corporation Voice-activated automatic gain control
JP3484757B2 (ja) * 1994-05-13 2004-01-06 ソニー株式会社 音声信号の雑音低減方法及び雑音区間検出方法
JP3381112B2 (ja) * 1995-03-09 2003-02-24 ソニー株式会社 エコー除去装置
US5742694A (en) * 1996-07-12 1998-04-21 Eatwell; Graham P. Noise reduction filter
US5796819A (en) * 1996-07-24 1998-08-18 Ericsson Inc. Echo canceller for non-linear circuits

Also Published As

Publication number Publication date
EP0786920B1 (de) 2004-10-13
US6256394B1 (en) 2001-07-03
KR970060723A (ko) 1997-08-12
JPH09204195A (ja) 1997-08-05
DE69731133T2 (de) 2006-02-23
SG55269A1 (en) 1999-07-20
KR100455968B1 (ko) 2004-12-29
EP0786920A1 (de) 1997-07-30

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee