FR2739481B1 - Appareil et procede d'elimination du bruit - Google Patents

Appareil et procede d'elimination du bruit

Info

Publication number
FR2739481B1
FR2739481B1 FR9611654A FR9611654A FR2739481B1 FR 2739481 B1 FR2739481 B1 FR 2739481B1 FR 9611654 A FR9611654 A FR 9611654A FR 9611654 A FR9611654 A FR 9611654A FR 2739481 B1 FR2739481 B1 FR 2739481B1
Authority
FR
France
Prior art keywords
noise elimination
elimination apparatus
noise
elimination
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
FR9611654A
Other languages
English (en)
Other versions
FR2739481A1 (fr
Inventor
Michael Mclaughlin
Tenkasi V Ramabadran
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.)
Motorola Mobility LLC
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of FR2739481A1 publication Critical patent/FR2739481A1/fr
Application granted granted Critical
Publication of FR2739481B1 publication Critical patent/FR2739481B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
FR9611654A 1995-09-29 1996-09-25 Appareil et procede d'elimination du bruit Expired - Lifetime FR2739481B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/536,231 US5687243A (en) 1995-09-29 1995-09-29 Noise suppression apparatus and method

Publications (2)

Publication Number Publication Date
FR2739481A1 FR2739481A1 (fr) 1997-04-04
FR2739481B1 true FR2739481B1 (fr) 1999-02-26

Family

ID=24137694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9611654A Expired - Lifetime FR2739481B1 (fr) 1995-09-29 1996-09-25 Appareil et procede d'elimination du bruit

Country Status (4)

Country Link
US (1) US5687243A (fr)
CN (1) CN1079613C (fr)
FR (1) FR2739481B1 (fr)
GB (1) GB2305831B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104993A (en) * 1997-02-26 2000-08-15 Motorola, Inc. Apparatus and method for rate determination in a communication system
US5864790A (en) * 1997-03-26 1999-01-26 Intel Corporation Method for enhancing 3-D localization of speech
FR2764469B1 (fr) * 1997-06-09 2002-07-12 France Telecom Procede et dispositif de traitement optimise d'un signal perturbateur lors d'une prise de son
US6459914B1 (en) * 1998-05-27 2002-10-01 Telefonaktiebolaget Lm Ericsson (Publ) Signal noise reduction by spectral subtraction using spectrum dependent exponential gain function averaging
US6507623B1 (en) * 1999-04-12 2003-01-14 Telefonaktiebolaget Lm Ericsson (Publ) Signal noise reduction by time-domain spectral subtraction
US6487257B1 (en) * 1999-04-12 2002-11-26 Telefonaktiebolaget L M Ericsson Signal noise reduction by time-domain spectral subtraction using fixed filters
US20040148160A1 (en) * 2003-01-23 2004-07-29 Tenkasi Ramabadran Method and apparatus for noise suppression within a distributed speech recognition system
EP1659721A4 (fr) * 2003-08-29 2012-07-25 Sony Corp Dispositif d'emission, procede d'emission et support de donnees
CN101193384B (zh) * 2006-11-20 2011-11-30 鸿富锦精密工业（深圳）有限公司 通过模式识别滤除环境音的方法及手机
US8834386B2 (en) * 2009-07-07 2014-09-16 Koninklijke Philips N.V. Noise reduction of breathing signals
US9344823B2 (en) 2010-03-22 2016-05-17 Aliphcom Pipe calibration device for calibration of omnidirectional microphones
US10453473B2 (en) * 2016-12-22 2019-10-22 AIRSHARE, Inc. Noise-reduction system for UAVs
EP3644313A1 (fr) * 2018-10-26 2020-04-29 Fraunhofer Gesellschaft zur Förderung der Angewand Codage audio perceptuel comportant un pavage adaptatif de temps/fréquence non uniforme par fusion de sous-bandes et par réduction de repliement dans le domaine temporel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609384B2 (ja) * 1980-01-29 1985-03-09 郵政省電波研究所長 符号誤り雑音抑圧方式
US4630305A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic gain selector for a noise suppression system
US4811404A (en) * 1987-10-01 1989-03-07 Motorola, Inc. Noise suppression system
KR950013552B1 (ko) * 1990-05-28 1995-11-08 마쯔시다덴기산교 가부시기가이샤 음성신호처리장치
US5388185A (en) * 1991-09-30 1995-02-07 U S West Advanced Technologies, Inc. System for adaptive processing of telephone voice signals

Also Published As

Publication number Publication date
FR2739481A1 (fr) 1997-04-04
CN1079613C (zh) 2002-02-20
GB9619601D0 (en) 1996-10-30
GB2305831A (en) 1997-04-16
CN1150357A (zh) 1997-05-21
US5687243A (en) 1997-11-11
GB2305831B (en) 1999-10-20

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Legal Events

Date Code Title Description
TP Transmission of property

Owner name: MOTOROLA MOBILITY, INC., US

Effective date: 20110912

PLFP Fee payment

Year of fee payment: 20