SG70644A1 - Methods and apparatus for measuring signal level and delay ay multiple sensors - Google Patents

Methods and apparatus for measuring signal level and delay ay multiple sensors

Info

Publication number
SG70644A1
SG70644A1 SG1998001543A SG1998001543A SG70644A1 SG 70644 A1 SG70644 A1 SG 70644A1 SG 1998001543 A SG1998001543 A SG 1998001543A SG 1998001543 A SG1998001543 A SG 1998001543A SG 70644 A1 SG70644 A1 SG 70644A1
Authority
SG
Singapore
Prior art keywords
delay
methods
signal level
measuring signal
multiple sensors
Prior art date
Application number
SG1998001543A
Other languages
English (en)
Inventor
Peter Handel
Jim Rasmusson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of SG70644A1 publication Critical patent/SG70644A1/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/345—Circuits therefor using energy switching from one active element to another
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Noise Elimination (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
SG1998001543A 1997-07-11 1998-06-29 Methods and apparatus for measuring signal level and delay ay multiple sensors SG70644A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/890,768 US6430295B1 (en) 1997-07-11 1997-07-11 Methods and apparatus for measuring signal level and delay at multiple sensors

Publications (1)

Publication Number Publication Date
SG70644A1 true SG70644A1 (en) 2000-02-22

Family

ID=25397124

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1998001543A SG70644A1 (en) 1997-07-11 1998-06-29 Methods and apparatus for measuring signal level and delay ay multiple sensors

Country Status (15)

Country Link
US (1) US6430295B1 (zh)
EP (1) EP0995188B1 (zh)
JP (1) JP4082649B2 (zh)
KR (1) KR100480404B1 (zh)
CN (1) CN1122963C (zh)
AU (1) AU747618B2 (zh)
BR (1) BR9810695A (zh)
DE (1) DE69837663D1 (zh)
EE (1) EE200000008A (zh)
HK (1) HK1031421A1 (zh)
MY (1) MY120049A (zh)
PL (1) PL337971A1 (zh)
SG (1) SG70644A1 (zh)
TW (1) TW386330B (zh)
WO (1) WO1999003091A1 (zh)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7146013B1 (en) * 1999-04-28 2006-12-05 Alpine Electronics, Inc. Microphone system
US20010028718A1 (en) 2000-02-17 2001-10-11 Audia Technology, Inc. Null adaptation in multi-microphone directional system
AU4574001A (en) 2000-03-14 2001-09-24 Audia Technology Inc Adaptive microphone matching in multi-microphone directional system
JP2003528508A (ja) * 2000-03-20 2003-09-24 オーディア テクノロジー インク 多重マイクロフォン・システムのための方向処理
US6861946B2 (en) * 2000-05-17 2005-03-01 Caveo Technology Llc. Motion-based input system for handheld devices
US8019091B2 (en) * 2000-07-19 2011-09-13 Aliphcom, Inc. Voice activity detector (VAD) -based multiple-microphone acoustic noise suppression
US8280072B2 (en) 2003-03-27 2012-10-02 Aliphcom, Inc. Microphone array with rear venting
US20070233479A1 (en) * 2002-05-30 2007-10-04 Burnett Gregory C Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors
US7246058B2 (en) * 2001-05-30 2007-07-17 Aliph, Inc. Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors
US20030179888A1 (en) * 2002-03-05 2003-09-25 Burnett Gregory C. Voice activity detection (VAD) devices and methods for use with noise suppression systems
US20020099541A1 (en) * 2000-11-21 2002-07-25 Burnett Gregory C. Method and apparatus for voiced speech excitation function determination and non-acoustic assisted feature extraction
KR100394840B1 (ko) * 2000-11-30 2003-08-19 한국과학기술원 독립 성분 분석을 이용한 능동 잡음 제거방법
US7206418B2 (en) * 2001-02-12 2007-04-17 Fortemedia, Inc. Noise suppression for a wireless communication device
US20030128848A1 (en) * 2001-07-12 2003-07-10 Burnett Gregory C. Method and apparatus for removing noise from electronic signals
WO2004056298A1 (en) * 2001-11-21 2004-07-08 Aliphcom Method and apparatus for removing noise from electronic signals
JP2003241767A (ja) * 2002-02-14 2003-08-29 Alpine Electronics Inc ノイズキャンセル装置
US6978010B1 (en) 2002-03-21 2005-12-20 Bellsouth Intellectual Property Corp. Ambient noise cancellation for voice communication device
CA2479758A1 (en) * 2002-03-27 2003-10-09 Aliphcom Microphone and voice activity detection (vad) configurations for use with communication systems
CN1311426C (zh) * 2002-04-10 2007-04-18 皇家飞利浦电子股份有限公司 立体声信号的编码、解码方法和装置及其传输设备
BR0304231A (pt) * 2002-04-10 2004-07-27 Koninkl Philips Electronics Nv Métodos para codificação de um sinal de canais múltiplos, método e disposição para decodificação de informação de sinal de canais múltiplos, sinal de dados incluindo informação de sinal de canais múltiplos, meio legìvel por computador, e, dispositivo para comunicação de um sinal de canais múltiplos
TW200425763A (en) 2003-01-30 2004-11-16 Aliphcom Inc Acoustic vibration sensor
US9066186B2 (en) 2003-01-30 2015-06-23 Aliphcom Light-based detection for acoustic applications
US9099094B2 (en) 2003-03-27 2015-08-04 Aliphcom Microphone array with rear venting
US7330556B2 (en) * 2003-04-03 2008-02-12 Gn Resound A/S Binaural signal enhancement system
US8509703B2 (en) * 2004-12-22 2013-08-13 Broadcom Corporation Wireless telephone with multiple microphones and multiple description transmission
US8345890B2 (en) 2006-01-05 2013-01-01 Audience, Inc. System and method for utilizing inter-microphone level differences for speech enhancement
US9185487B2 (en) 2006-01-30 2015-11-10 Audience, Inc. System and method for providing noise suppression utilizing null processing noise subtraction
US8744844B2 (en) 2007-07-06 2014-06-03 Audience, Inc. System and method for adaptive intelligent noise suppression
US8204252B1 (en) 2006-10-10 2012-06-19 Audience, Inc. System and method for providing close microphone adaptive array processing
US8194880B2 (en) * 2006-01-30 2012-06-05 Audience, Inc. System and method for utilizing omni-directional microphones for speech enhancement
US8150065B2 (en) * 2006-05-25 2012-04-03 Audience, Inc. System and method for processing an audio signal
US8204253B1 (en) 2008-06-30 2012-06-19 Audience, Inc. Self calibration of audio device
US8949120B1 (en) 2006-05-25 2015-02-03 Audience, Inc. Adaptive noise cancelation
US8934641B2 (en) 2006-05-25 2015-01-13 Audience, Inc. Systems and methods for reconstructing decomposed audio signals
US8849231B1 (en) 2007-08-08 2014-09-30 Audience, Inc. System and method for adaptive power control
US8259926B1 (en) 2007-02-23 2012-09-04 Audience, Inc. System and method for 2-channel and 3-channel acoustic echo cancellation
US8189766B1 (en) 2007-07-26 2012-05-29 Audience, Inc. System and method for blind subband acoustic echo cancellation postfiltering
WO2009076523A1 (en) 2007-12-11 2009-06-18 Andrea Electronics Corporation Adaptive filtering in a sensor array system
US8150054B2 (en) * 2007-12-11 2012-04-03 Andrea Electronics Corporation Adaptive filter in a sensor array system
US9392360B2 (en) 2007-12-11 2016-07-12 Andrea Electronics Corporation Steerable sensor array system with video input
US8143620B1 (en) 2007-12-21 2012-03-27 Audience, Inc. System and method for adaptive classification of audio sources
US8180064B1 (en) 2007-12-21 2012-05-15 Audience, Inc. System and method for providing voice equalization
US8194882B2 (en) 2008-02-29 2012-06-05 Audience, Inc. System and method for providing single microphone noise suppression fallback
US8355511B2 (en) 2008-03-18 2013-01-15 Audience, Inc. System and method for envelope-based acoustic echo cancellation
WO2009132270A1 (en) * 2008-04-25 2009-10-29 Andrea Electronics Corporation Headset with integrated stereo array microphone
US8818000B2 (en) 2008-04-25 2014-08-26 Andrea Electronics Corporation System, device, and method utilizing an integrated stereo array microphone
US8521530B1 (en) 2008-06-30 2013-08-27 Audience, Inc. System and method for enhancing a monaural audio signal
US8774423B1 (en) 2008-06-30 2014-07-08 Audience, Inc. System and method for controlling adaptivity of signal modification using a phantom coefficient
US9008329B1 (en) 2010-01-26 2015-04-14 Audience, Inc. Noise reduction using multi-feature cluster tracker
US8798290B1 (en) 2010-04-21 2014-08-05 Audience, Inc. Systems and methods for adaptive signal equalization
CN103222192B (zh) * 2010-10-08 2019-05-07 日本电气株式会社 信号处理设备和信号处理方法
US9993193B2 (en) * 2011-01-12 2018-06-12 Koninklijke Philips N.V. Detection of breathing in the bedroom
US9640194B1 (en) 2012-10-04 2017-05-02 Knowles Electronics, Llc Noise suppression for speech processing based on machine-learning mask estimation
US10137233B2 (en) * 2012-12-18 2018-11-27 Gambro Lundia Ab Detecting pressure pulses in a blood processing apparatus
US9357080B2 (en) * 2013-06-04 2016-05-31 Broadcom Corporation Spatial quiescence protection for multi-channel acoustic echo cancellation
US9536540B2 (en) 2013-07-19 2017-01-03 Knowles Electronics, Llc Speech signal separation and synthesis based on auditory scene analysis and speech modeling
CN104656494A (zh) * 2013-11-19 2015-05-27 北大方正集团有限公司 一种信号实时性处理装置
DE112015003945T5 (de) 2014-08-28 2017-05-11 Knowles Electronics, Llc Mehrquellen-Rauschunterdrückung
US9685730B2 (en) 2014-09-12 2017-06-20 Steelcase Inc. Floor power distribution system
US9584910B2 (en) 2014-12-17 2017-02-28 Steelcase Inc. Sound gathering system
WO2018051538A1 (ja) * 2016-09-15 2018-03-22 アルプス電気株式会社 物理量測定装置
AU2017353987B2 (en) * 2016-11-04 2019-10-10 Med-El Elektromedizinische Geraete Gmbh Bilateral synchronized channel selection for cochlear implants
KR102351071B1 (ko) * 2019-11-25 2022-01-14 한국전자기술연구원 섬유 스트레인 센서를 포함하는 센서 모듈
US11223891B2 (en) * 2020-02-19 2022-01-11 xMEMS Labs, Inc. System and method thereof
CN116232282B (zh) * 2023-01-12 2023-12-19 湖南大学无锡智能控制研究院 一种基于自适应全通滤波器的时变时延估计方法、装置和系统

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794766A (en) * 1973-02-08 1974-02-26 Bell Telephone Labor Inc Delay equalizing circuit for an audio system using multiple microphones
EP0084982B1 (en) * 1982-01-27 1987-11-11 Racal Acoustics Limited Improvements in and relating to communications systems
US4631749A (en) * 1984-06-22 1986-12-23 Heath Company ROM compensated microphone
JPH042928A (ja) 1990-04-19 1992-01-07 Matsushita Electric Ind Co Ltd 音場制御装置
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
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
US5400409A (en) * 1992-12-23 1995-03-21 Daimler-Benz Ag Noise-reduction method for noise-affected voice channels
US5590241A (en) 1993-04-30 1996-12-31 Motorola Inc. Speech processing system and method for enhancing a speech signal in a noisy environment
JPH084243B2 (ja) 1993-05-31 1996-01-17 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
DE69431583T2 (de) 1993-08-12 2003-03-06 Nortel Networks Ltd., St.Laurent Antenneneinrichtung für Basisstation
US5473701A (en) * 1993-11-05 1995-12-05 At&T Corp. Adaptive microphone array
SE502888C2 (sv) 1994-06-14 1996-02-12 Volvo Ab Adaptiv mikrofonanordning och förfarande för adaptering till en inkommande målbrussignal
US5581495A (en) 1994-09-23 1996-12-03 United States Of America Adaptive signal processing array with unconstrained pole-zero rejection of coherent and non-coherent interfering signals
US5602928A (en) 1995-01-05 1997-02-11 Digisonix, Inc. Multi-channel communication system
JP2758846B2 (ja) * 1995-02-27 1998-05-28 埼玉日本電気株式会社 ノイズキャンセラ装置
CN1135753C (zh) * 1995-12-15 2004-01-21 皇家菲利浦电子有限公司 自适应噪声抵消装置、减噪系统及收发机

Also Published As

Publication number Publication date
CN1269902A (zh) 2000-10-11
EP0995188A1 (en) 2000-04-26
WO1999003091A1 (en) 1999-01-21
AU747618B2 (en) 2002-05-16
MY120049A (en) 2005-08-30
CN1122963C (zh) 2003-10-01
DE69837663D1 (de) 2007-06-06
PL337971A1 (en) 2000-09-11
KR20010021720A (ko) 2001-03-15
TW386330B (en) 2000-04-01
BR9810695A (pt) 2000-09-05
AU8364298A (en) 1999-02-08
EE200000008A (et) 2000-08-15
JP2001509659A (ja) 2001-07-24
KR100480404B1 (ko) 2005-04-06
US6430295B1 (en) 2002-08-06
JP4082649B2 (ja) 2008-04-30
EP0995188B1 (en) 2007-04-25
HK1031421A1 (en) 2001-06-15

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