TW386330B - Method and apparatus for measuring signal level and delay at multiple sensors - Google Patents
Method and apparatus for measuring signal level and delay at multiple sensors Download PDFInfo
- Publication number
- TW386330B TW386330B TW087111912A TW87111912A TW386330B TW 386330 B TW386330 B TW 386330B TW 087111912 A TW087111912 A TW 087111912A TW 87111912 A TW87111912 A TW 87111912A TW 386330 B TW386330 B TW 386330B
- Authority
- TW
- Taiwan
- Prior art keywords
- filter
- signal
- aforementioned
- signal processing
- processing device
- Prior art date
Links
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- 238000012545 processing Methods 0.000 claims abstract description 37
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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)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (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)
- Filters That Use Time-Delay Elements (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Radar Systems Or Details Thereof (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
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 |
|---|---|
| TW386330B true TW386330B (en) | 2000-04-01 |
Family
ID=25397124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW087111912A TW386330B (en) | 1997-07-11 | 1998-07-22 | Method and apparatus for measuring signal level and delay at multiple sensors |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US6430295B1 (enExample) |
| EP (1) | EP0995188B1 (enExample) |
| JP (1) | JP4082649B2 (enExample) |
| KR (1) | KR100480404B1 (enExample) |
| CN (1) | CN1122963C (enExample) |
| AU (1) | AU747618B2 (enExample) |
| BR (1) | BR9810695A (enExample) |
| DE (1) | DE69837663D1 (enExample) |
| EE (1) | EE200000008A (enExample) |
| MY (1) | MY120049A (enExample) |
| PL (1) | PL337971A1 (enExample) |
| SG (1) | SG70644A1 (enExample) |
| TW (1) | TW386330B (enExample) |
| WO (1) | WO1999003091A1 (enExample) |
Families Citing this family (67)
| 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 |
| US7155019B2 (en) | 2000-03-14 | 2006-12-26 | Apherma Corporation | Adaptive microphone matching in multi-microphone directional system |
| WO2001072085A2 (en) * | 2000-03-20 | 2001-09-27 | Audia Technology, Inc. | Directional processing for multi-microphone system |
| US6861946B2 (en) * | 2000-05-17 | 2005-03-01 | Caveo Technology Llc. | Motion-based input system for handheld devices |
| US8280072B2 (en) | 2003-03-27 | 2012-10-02 | Aliphcom, Inc. | Microphone array with rear venting |
| US8019091B2 (en) | 2000-07-19 | 2011-09-13 | Aliphcom, Inc. | Voice activity detector (VAD) -based multiple-microphone acoustic noise suppression |
| US20030179888A1 (en) * | 2002-03-05 | 2003-09-25 | Burnett Gregory C. | Voice activity detection (VAD) devices and methods for use with noise suppression systems |
| 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 |
| 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 |
| KR101434071B1 (ko) * | 2002-03-27 | 2014-08-26 | 앨리프컴 | 통신 시스템에서 사용을 위한 마이크로폰과 음성 활동 감지(ｖａｄ) 구성 |
| US7437299B2 (en) * | 2002-04-10 | 2008-10-14 | Koninklijke Philips Electronics N.V. | Coding of stereo signals |
| US7359522B2 (en) * | 2002-04-10 | 2008-04-15 | Koninklijke Philips Electronics N.V. | Coding of stereo signals |
| WO2004068464A2 (en) | 2003-01-30 | 2004-08-12 | 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 |
| US8204252B1 (en) | 2006-10-10 | 2012-06-19 | Audience, Inc. | System and method for providing close microphone adaptive array processing |
| US9185487B2 (en) | 2006-01-30 | 2015-11-10 | Audience, Inc. | System and method for providing noise suppression utilizing null processing noise subtraction |
| US8194880B2 (en) * | 2006-01-30 | 2012-06-05 | Audience, Inc. | System and method for utilizing omni-directional microphones for speech enhancement |
| US8744844B2 (en) | 2007-07-06 | 2014-06-03 | Audience, Inc. | System and method for adaptive intelligent noise suppression |
| US8934641B2 (en) | 2006-05-25 | 2015-01-13 | Audience, Inc. | Systems and methods for reconstructing decomposed audio signals |
| US8949120B1 (en) | 2006-05-25 | 2015-02-03 | Audience, Inc. | Adaptive noise cancelation |
| US8849231B1 (en) | 2007-08-08 | 2014-09-30 | Audience, Inc. | System and method for adaptive power control |
| US8204253B1 (en) | 2008-06-30 | 2012-06-19 | Audience, Inc. | Self calibration of audio device |
| US8150065B2 (en) * | 2006-05-25 | 2012-04-03 | Audience, Inc. | System and method for processing an audio signal |
| 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 |
| US8818000B2 (en) | 2008-04-25 | 2014-08-26 | Andrea Electronics Corporation | System, device, and method utilizing an integrated stereo array microphone |
| WO2009132270A1 (en) * | 2008-04-25 | 2009-10-29 | Andrea Electronics Corporation | Headset with integrated stereo array microphone |
| US8774423B1 (en) | 2008-06-30 | 2014-07-08 | Audience, Inc. | System and method for controlling adaptivity of signal modification using a phantom coefficient |
| US8521530B1 (en) | 2008-06-30 | 2013-08-27 | Audience, Inc. | System and method for enhancing a monaural audio signal |
| 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 |
| EP2663230B1 (en) * | 2011-01-12 | 2015-03-18 | Koninklijke Philips N.V. | Improved 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 |
| CA2892979A1 (en) | 2012-12-18 | 2014-06-26 | 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 |
| WO2016033364A1 (en) | 2014-08-28 | 2016-03-03 | Audience, Inc. | Multi-sourced noise suppression |
| 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 |
| EP3159891B1 (en) * | 2015-10-22 | 2018-08-08 | Harman Becker Automotive Systems GmbH | Noise and vibration sensing |
| CN109716070B (zh) * | 2016-09-15 | 2021-07-23 | 阿尔卑斯阿尔派株式会社 | 物理量测定装置 |
| WO2018085620A1 (en) * | 2016-11-04 | 2018-05-11 | 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 |
| CN115691542B (zh) * | 2022-10-28 | 2025-10-03 | 南京地平线机器人技术有限公司 | 音频信号处理的方法、装置、可读存储介质及电子设备 |
| 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)
| 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 |
-
1997
- 1997-07-11 US US08/890,768 patent/US6430295B1/en not_active Expired - Fee Related
-
1998
- 1998-06-29 SG SG1998001543A patent/SG70644A1/en unknown
- 1998-07-03 AU AU83642/98A patent/AU747618B2/en not_active Ceased
- 1998-07-03 DE DE69837663T patent/DE69837663D1/de not_active Expired - Lifetime
- 1998-07-03 CN CN98808780A patent/CN1122963C/zh not_active Expired - Fee Related
- 1998-07-03 EP EP98934034A patent/EP0995188B1/en not_active Expired - Lifetime
- 1998-07-03 JP JP2000502496A patent/JP4082649B2/ja not_active Expired - Fee Related
- 1998-07-03 WO PCT/SE1998/001319 patent/WO1999003091A1/en not_active Ceased
- 1998-07-03 EE EEP200000008A patent/EE200000008A/xx unknown
- 1998-07-03 BR BR9810695-3A patent/BR9810695A/pt not_active IP Right Cessation
- 1998-07-03 KR KR10-2000-7000279A patent/KR100480404B1/ko not_active Expired - Fee Related
- 1998-07-03 PL PL98337971A patent/PL337971A1/xx unknown
- 1998-07-10 MY MYPI98003158A patent/MY120049A/en unknown
- 1998-07-22 TW TW087111912A patent/TW386330B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1269902A (zh) | 2000-10-11 |
| EP0995188A1 (en) | 2000-04-26 |
| KR20010021720A (ko) | 2001-03-15 |
| EP0995188B1 (en) | 2007-04-25 |
| PL337971A1 (en) | 2000-09-11 |
| SG70644A1 (en) | 2000-02-22 |
| EE200000008A (et) | 2000-08-15 |
| DE69837663D1 (de) | 2007-06-06 |
| AU747618B2 (en) | 2002-05-16 |
| BR9810695A (pt) | 2000-09-05 |
| JP2001509659A (ja) | 2001-07-24 |
| JP4082649B2 (ja) | 2008-04-30 |
| AU8364298A (en) | 1999-02-08 |
| HK1031421A1 (en) | 2001-06-15 |
| US6430295B1 (en) | 2002-08-06 |
| WO1999003091A1 (en) | 1999-01-21 |
| MY120049A (en) | 2005-08-30 |
| KR100480404B1 (ko) | 2005-04-06 |
| CN1122963C (zh) | 2003-10-01 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GD4A | Issue of patent certificate for granted invention patent | ||
| MM4A | Annulment or lapse of patent due to non-payment of fees |