JPS62135020A - 雑音消去装置 - Google Patents

雑音消去装置

Info

Publication number
JPS62135020A
JPS62135020A JP60275444A JP27544485A JPS62135020A JP S62135020 A JPS62135020 A JP S62135020A JP 60275444 A JP60275444 A JP 60275444A JP 27544485 A JP27544485 A JP 27544485A JP S62135020 A JPS62135020 A JP S62135020A
Authority
JP
Japan
Prior art keywords
noise
filter
coefficient
output
sound
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.)
Granted
Application number
JP60275444A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0535930B2 (enExample
Inventor
Satoru Taguchi
哲 田口
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP60275444A priority Critical patent/JPS62135020A/ja
Priority to CA000524604A priority patent/CA1259663A/en
Priority to US06/938,916 priority patent/US4723294A/en
Publication of JPS62135020A publication Critical patent/JPS62135020A/ja
Publication of JPH0535930B2 publication Critical patent/JPH0535930B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
JP60275444A 1985-12-06 1985-12-06 雑音消去装置 Granted JPS62135020A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP60275444A JPS62135020A (ja) 1985-12-06 1985-12-06 雑音消去装置
CA000524604A CA1259663A (en) 1985-12-06 1986-12-05 Noise canceling system
US06/938,916 US4723294A (en) 1985-12-06 1986-12-08 Noise canceling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60275444A JPS62135020A (ja) 1985-12-06 1985-12-06 雑音消去装置

Publications (2)

Publication Number Publication Date
JPS62135020A true JPS62135020A (ja) 1987-06-18
JPH0535930B2 JPH0535930B2 (enExample) 1993-05-27

Family

ID=17555609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60275444A Granted JPS62135020A (ja) 1985-12-06 1985-12-06 雑音消去装置

Country Status (3)

Country Link
US (1) US4723294A (enExample)
JP (1) JPS62135020A (enExample)
CA (1) CA1259663A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03136099A (ja) * 1989-10-23 1991-06-10 Hitachi Ltd 音声検出出力装置
JP2003510645A (ja) * 1999-09-23 2003-03-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 音声認識装置及び消費者電子システム
WO2018122900A1 (ja) * 2016-12-26 2018-07-05 日本電気株式会社 レーダー間干渉除去方法、信号処理装置、信号処理方法および信号処理プログラム

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01118900A (ja) * 1987-11-01 1989-05-11 Ricoh Co Ltd 雑音抑圧装置
FR2635622A1 (fr) * 1988-08-19 1990-02-23 France Etat Dispositif de saisie de signaux sonores a elimination de brouilleur
WO1990002041A1 (fr) * 1988-08-19 1990-03-08 Osaka Gas Company Limited Isolateur thermique moule et procede de production
US5027410A (en) * 1988-11-10 1991-06-25 Wisconsin Alumni Research Foundation Adaptive, programmable signal processing and filtering for hearing aids
US4956867A (en) * 1989-04-20 1990-09-11 Massachusetts Institute Of Technology Adaptive beamforming for noise reduction
DE3925589C2 (de) * 1989-08-02 1994-03-17 Blaupunkt Werke Gmbh Verfahren und Anordnung zur Störbefreiung von Sprachsignalen
US5243661A (en) * 1990-04-09 1993-09-07 Sony Corporation Microphone apparatus
US5237618A (en) * 1990-05-11 1993-08-17 General Electric Company Electronic compensation system for elimination or reduction of inter-channel interference in noise cancellation systems
EP1357481A3 (en) * 1991-03-07 2005-04-27 Masimo Corporation Signal processing apparatus and method
US5632272A (en) * 1991-03-07 1997-05-27 Masimo Corporation Signal processing apparatus
MX9702434A (es) * 1991-03-07 1998-05-31 Masimo Corp Aparato de procesamiento de señales.
US5490505A (en) 1991-03-07 1996-02-13 Masimo Corporation Signal processing apparatus
US5226016A (en) * 1992-04-16 1993-07-06 The United States Of America As Represented By The Secretary Of The Navy Adaptively formed signal-free reference system
WO1994018573A1 (en) * 1993-02-02 1994-08-18 Yoshimutsu Hirata Non-harmonic analysis of waveform data and synthesizing processing system
US7376453B1 (en) 1993-10-06 2008-05-20 Masimo Corporation Signal processing apparatus
US5473701A (en) * 1993-11-05 1995-12-05 At&T Corp. Adaptive microphone array
BE1007806A3 (nl) * 1993-11-30 1995-10-24 Philips Electronics Nv Magnetisch resonantie apparaat bevattende een communicatiesysteem.
GB2286945A (en) * 1994-02-03 1995-08-30 Normalair Garrett Noise reduction system
US8085959B2 (en) * 1994-07-08 2011-12-27 Brigham Young University Hearing compensation system incorporating signal processing techniques
US5500902A (en) * 1994-07-08 1996-03-19 Stockham, Jr.; Thomas G. Hearing aid device incorporating signal processing techniques
US6072885A (en) * 1994-07-08 2000-06-06 Sonic Innovations, Inc. Hearing aid device incorporating signal processing techniques
FR2722637B1 (fr) * 1994-07-15 1996-09-20 Mahieux Yannick Systeme de prise de son selective pour environnement reverberant et bruyant
US8019400B2 (en) 1994-10-07 2011-09-13 Masimo Corporation Signal processing apparatus
EP1905352B1 (en) 1994-10-07 2014-07-16 Masimo Corporation Signal processing method
US5853364A (en) * 1995-08-07 1998-12-29 Nellcor Puritan Bennett, Inc. Method and apparatus for estimating physiological parameters using model-based adaptive filtering
US6002952A (en) * 1997-04-14 1999-12-14 Masimo Corporation Signal processing apparatus and method
US6084973A (en) * 1997-12-22 2000-07-04 Audio Technica U.S., Inc. Digital and analog directional microphone
US6480610B1 (en) 1999-09-21 2002-11-12 Sonic Innovations, Inc. Subband acoustic feedback cancellation in hearing aids
US6757395B1 (en) 2000-01-12 2004-06-29 Sonic Innovations, Inc. Noise reduction apparatus and method
US20040125962A1 (en) * 2000-04-14 2004-07-01 Markus Christoph Method and apparatus for dynamic sound optimization
DE10018666A1 (de) 2000-04-14 2001-10-18 Harman Audio Electronic Sys Vorrichtung und Verfahren zum geräuschabhängigen Anpassen eines akustischen Nutzsignals
US6961596B2 (en) * 2003-04-21 2005-11-01 3Com Corporation Modular RF antenna and filter system for dual radio WLAN access points
US7194293B2 (en) * 2004-03-08 2007-03-20 Nellcor Puritan Bennett Incorporated Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics
EP1580882B1 (en) * 2004-03-19 2007-01-10 Harman Becker Automotive Systems GmbH Audio enhancement system and method
EP1619793B1 (en) * 2004-07-20 2015-06-17 Harman Becker Automotive Systems GmbH Audio enhancement system and method
US8170221B2 (en) * 2005-03-21 2012-05-01 Harman Becker Automotive Systems Gmbh Audio enhancement system and method
EP1720249B1 (en) 2005-05-04 2009-07-15 Harman Becker Automotive Systems GmbH Audio enhancement system and method
GB0725113D0 (en) * 2007-12-21 2008-01-30 Wolfson Microelectronics Plc SNR dependent gain
CN101667426A (zh) * 2009-09-23 2010-03-10 中兴通讯股份有限公司 一种消除环境噪声的装置及方法
US10412698B2 (en) 2017-02-22 2019-09-10 Samsung Electronics Co., Ltd. System and method for IQ mismatch calibration and compensation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008439A (en) * 1976-02-20 1977-02-15 Bell Telephone Laboratories, Incorporated Processing of two noise contaminated, substantially identical signals to improve signal-to-noise ratio
US4536887A (en) * 1982-10-18 1985-08-20 Nippon Telegraph & Telephone Public Corporation Microphone-array apparatus and method for extracting desired signal
US4630304A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic background noise estimator for a noise suppression system
US4658426A (en) * 1985-10-10 1987-04-14 Harold Antin Adaptive noise suppressor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03136099A (ja) * 1989-10-23 1991-06-10 Hitachi Ltd 音声検出出力装置
JP2003510645A (ja) * 1999-09-23 2003-03-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 音声認識装置及び消費者電子システム
JP4897169B2 (ja) * 1999-09-23 2012-03-14 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 音声認識装置及び消費者電子システム
WO2018122900A1 (ja) * 2016-12-26 2018-07-05 日本電気株式会社 レーダー間干渉除去方法、信号処理装置、信号処理方法および信号処理プログラム
JPWO2018122900A1 (ja) * 2016-12-26 2019-10-31 日本電気株式会社 レーダー間干渉除去方法、信号処理装置、信号処理方法および信号処理プログラム
US11300671B2 (en) 2016-12-26 2022-04-12 Nec Corporation Method for removing inter-radar interference using deconvolution of cross correlated reference signals, signal processing device, signal processing method, and signal processing program

Also Published As

Publication number Publication date
CA1259663A (en) 1989-09-19
US4723294A (en) 1988-02-02
JPH0535930B2 (enExample) 1993-05-27

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