CA2106338A1 - Noise Controller - Google Patents
Noise ControllerInfo
- Publication number
- CA2106338A1 CA2106338A1 CA2106338A CA2106338A CA2106338A1 CA 2106338 A1 CA2106338 A1 CA 2106338A1 CA 2106338 A CA2106338 A CA 2106338A CA 2106338 A CA2106338 A CA 2106338A CA 2106338 A1 CA2106338 A1 CA 2106338A1
- Authority
- CA
- Canada
- Prior art keywords
- noise
- components
- periodic
- random
- detection signal
- 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
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
- G10K11/1785—Methods, e.g. algorithms; Devices
-
- 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
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17853—Methods, e.g. algorithms; Devices of the filter
- G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
-
- 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
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
-
- 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
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1282—Automobiles
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3012—Algorithms
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3032—Harmonics or sub-harmonics
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3045—Multiple acoustic inputs, single acoustic output
Abstract
An active noise controller includes a prediction filter which comprises a delayer for delaying the noise or error detection signal by a predetermined period of time, a first adaptive filter for processing the output of the delayer to deliver its periodic component, and a subtractor for subtracting the output of the first adaptive filter from the noise detection signal to deliver a random component of the signal. More specifically, the prediction filter is capable of dividing the noise or error detection signal into two, periodic and random, components. In addition, two, second and third, adaptive filters are provided for processing the periodic and random components respectively. Accordingly, the second and third adaptive filters become responsive precisely to their respective periodic and random components regardless of the ratio in level between the two components, whereby any undesired noise consisting of the two discrete components will be suppressed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04-261163/1992 | 1992-09-30 | ||
JP4261163A JP2924496B2 (en) | 1992-09-30 | 1992-09-30 | Noise control device |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2106338A1 true CA2106338A1 (en) | 1994-03-31 |
CA2106338C CA2106338C (en) | 1999-11-30 |
Family
ID=17357996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002106338A Expired - Fee Related CA2106338C (en) | 1992-09-30 | 1993-09-16 | Noise controller |
Country Status (5)
Country | Link |
---|---|
US (1) | US5377276A (en) |
EP (1) | EP0590350B1 (en) |
JP (1) | JP2924496B2 (en) |
CA (1) | CA2106338C (en) |
DE (1) | DE69330544T2 (en) |
Families Citing this family (86)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2756629B2 (en) * | 1992-11-19 | 1998-05-25 | 本田技研工業株式会社 | Adaptive control device |
JPH0784993A (en) * | 1993-09-17 | 1995-03-31 | Fujitsu Ltd | Signal suppressing device |
NL9302076A (en) * | 1993-11-30 | 1995-06-16 | Tno | System for generating a time-variant signal for suppressing a primary signal with minimization of a prediction error. |
US5475761A (en) * | 1994-01-31 | 1995-12-12 | Noise Cancellation Technologies, Inc. | Adaptive feedforward and feedback control system |
US5557682A (en) * | 1994-07-12 | 1996-09-17 | Digisonix | Multi-filter-set active adaptive control system |
US5592791A (en) * | 1995-05-24 | 1997-01-14 | Radix Sytems, Inc. | Active controller for the attenuation of mechanical vibrations |
WO1997007497A1 (en) * | 1995-08-11 | 1997-02-27 | Centre De Recherche Industrielle Du Quebec | Apparatus and method for adaptively attenuating noise or vibration |
US5907623A (en) | 1995-11-22 | 1999-05-25 | Sony Corporation Of Japan | Audio noise reduction system implemented through digital signal processing |
US5903819A (en) * | 1996-03-13 | 1999-05-11 | Ericsson Inc. | Noise suppressor circuit and associated method for suppressing periodic interference component portions of a communication signal |
JP3751359B2 (en) * | 1996-03-21 | 2006-03-01 | 本田技研工業株式会社 | Vibration noise control device |
EP0814456A3 (en) * | 1996-06-17 | 1998-10-07 | Lord Corporation | Active noise or vibration control (ANVC) system and method including enhanced reference signals |
JP3346198B2 (en) * | 1996-12-10 | 2002-11-18 | 富士ゼロックス株式会社 | Active silencer |
US5970156A (en) * | 1997-02-14 | 1999-10-19 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for reducing periodic interference in audio signals |
GB2330048B (en) * | 1997-10-02 | 2002-02-27 | Sony Uk Ltd | Audio signal processors |
EP0973151B8 (en) * | 1998-07-16 | 2009-02-25 | Panasonic Corporation | Noise control system |
US7088828B1 (en) * | 2000-04-13 | 2006-08-08 | Cisco Technology, Inc. | Methods and apparatus for providing privacy for a user of an audio electronic device |
US20020123308A1 (en) * | 2001-01-09 | 2002-09-05 | Feltstrom Alberto Jimenez | Suppression of periodic interference in a communications system |
GB2389990B (en) * | 2002-06-18 | 2005-06-08 | Siemens Vdo Automotive Inc | Active noise control system with horn sound feature |
US7099822B2 (en) * | 2002-12-10 | 2006-08-29 | Liberato Technologies, Inc. | System and method for noise reduction having first and second adaptive filters responsive to a stored vector |
US7162420B2 (en) * | 2002-12-10 | 2007-01-09 | Liberato Technologies, Llc | System and method for noise reduction having first and second adaptive filters |
JP3843082B2 (en) * | 2003-06-05 | 2006-11-08 | 本田技研工業株式会社 | Active vibration noise control device |
JP2005004013A (en) * | 2003-06-12 | 2005-01-06 | Pioneer Electronic Corp | Noise reducing device |
US7697698B2 (en) * | 2003-08-22 | 2010-04-13 | William Sumner Brown | Sound-based vehicle safety system |
JP4077383B2 (en) * | 2003-09-10 | 2008-04-16 | 松下電器産業株式会社 | Active vibration noise control device |
DE102004025471A1 (en) * | 2004-05-21 | 2005-12-15 | Micronas Gmbh | A method or adaptive filter for processing a sequence of input data of a radio system |
JP4074612B2 (en) * | 2004-09-14 | 2008-04-09 | 本田技研工業株式会社 | Active vibration noise control device |
US7949520B2 (en) | 2004-10-26 | 2011-05-24 | QNX Software Sytems Co. | Adaptive filter pitch extraction |
US7680652B2 (en) * | 2004-10-26 | 2010-03-16 | Qnx Software Systems (Wavemakers), Inc. | Periodic signal enhancement system |
US8543390B2 (en) | 2004-10-26 | 2013-09-24 | Qnx Software Systems Limited | Multi-channel periodic signal enhancement system |
US8306821B2 (en) * | 2004-10-26 | 2012-11-06 | Qnx Software Systems Limited | Sub-band periodic signal enhancement system |
US7610196B2 (en) | 2004-10-26 | 2009-10-27 | Qnx Software Systems (Wavemakers), Inc. | Periodic signal enhancement system |
US8170879B2 (en) | 2004-10-26 | 2012-05-01 | Qnx Software Systems Limited | Periodic signal enhancement system |
US7716046B2 (en) * | 2004-10-26 | 2010-05-11 | Qnx Software Systems (Wavemakers), Inc. | Advanced periodic signal enhancement |
JP4289394B2 (en) * | 2004-11-08 | 2009-07-01 | パナソニック株式会社 | Active noise reduction device |
WO2007013281A1 (en) * | 2005-07-27 | 2007-02-01 | Matsushita Electric Industrial Co., Ltd. | Active vibration/noise controller |
US7665012B2 (en) * | 2005-11-04 | 2010-02-16 | At&T Intellectual Property I, Lp | Impulse noise mitigation |
US8850154B2 (en) | 2007-09-11 | 2014-09-30 | 2236008 Ontario Inc. | Processing system having memory partitioning |
US8904400B2 (en) | 2007-09-11 | 2014-12-02 | 2236008 Ontario Inc. | Processing system having a partitioning component for resource partitioning |
US8694310B2 (en) | 2007-09-17 | 2014-04-08 | Qnx Software Systems Limited | Remote control server protocol system |
US8209514B2 (en) | 2008-02-04 | 2012-06-26 | Qnx Software Systems Limited | Media processing system having resource partitioning |
US9020158B2 (en) | 2008-11-20 | 2015-04-28 | Harman International Industries, Incorporated | Quiet zone control system |
US8135140B2 (en) | 2008-11-20 | 2012-03-13 | Harman International Industries, Incorporated | System for active noise control with audio signal compensation |
US8718289B2 (en) * | 2009-01-12 | 2014-05-06 | Harman International Industries, Incorporated | System for active noise control with parallel adaptive filter configuration |
US8189799B2 (en) | 2009-04-09 | 2012-05-29 | Harman International Industries, Incorporated | System for active noise control based on audio system output |
US8199924B2 (en) * | 2009-04-17 | 2012-06-12 | Harman International Industries, Incorporated | System for active noise control with an infinite impulse response filter |
US8077873B2 (en) | 2009-05-14 | 2011-12-13 | Harman International Industries, Incorporated | System for active noise control with adaptive speaker selection |
US8908877B2 (en) | 2010-12-03 | 2014-12-09 | Cirrus Logic, Inc. | Ear-coupling detection and adjustment of adaptive response in noise-canceling in personal audio devices |
KR101909432B1 (en) | 2010-12-03 | 2018-10-18 | 씨러스 로직 인코포레이티드 | Oversight control of an adaptive noise canceler in a personal audio device |
US8948407B2 (en) | 2011-06-03 | 2015-02-03 | Cirrus Logic, Inc. | Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC) |
US9318094B2 (en) | 2011-06-03 | 2016-04-19 | Cirrus Logic, Inc. | Adaptive noise canceling architecture for a personal audio device |
US9824677B2 (en) | 2011-06-03 | 2017-11-21 | Cirrus Logic, Inc. | Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC) |
US8958571B2 (en) * | 2011-06-03 | 2015-02-17 | Cirrus Logic, Inc. | MIC covering detection in personal audio devices |
US20130243212A1 (en) * | 2012-03-13 | 2013-09-19 | Bradley Paul Sugden | Active noise interference system |
US9318090B2 (en) | 2012-05-10 | 2016-04-19 | Cirrus Logic, Inc. | Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system |
US9123321B2 (en) | 2012-05-10 | 2015-09-01 | Cirrus Logic, Inc. | Sequenced adaptation of anti-noise generator response and secondary path response in an adaptive noise canceling system |
US9319781B2 (en) | 2012-05-10 | 2016-04-19 | Cirrus Logic, Inc. | Frequency and direction-dependent ambient sound handling in personal audio devices having adaptive noise cancellation (ANC) |
US9111522B1 (en) | 2012-06-21 | 2015-08-18 | Amazon Technologies, Inc. | Selective audio canceling |
US9532139B1 (en) | 2012-09-14 | 2016-12-27 | Cirrus Logic, Inc. | Dual-microphone frequency amplitude response self-calibration |
US9369798B1 (en) | 2013-03-12 | 2016-06-14 | Cirrus Logic, Inc. | Internal dynamic range control in an adaptive noise cancellation (ANC) system |
US9414150B2 (en) | 2013-03-14 | 2016-08-09 | Cirrus Logic, Inc. | Low-latency multi-driver adaptive noise canceling (ANC) system for a personal audio device |
US9324311B1 (en) | 2013-03-15 | 2016-04-26 | Cirrus Logic, Inc. | Robust adaptive noise canceling (ANC) in a personal audio device |
US10206032B2 (en) | 2013-04-10 | 2019-02-12 | Cirrus Logic, Inc. | Systems and methods for multi-mode adaptive noise cancellation for audio headsets |
US9462376B2 (en) | 2013-04-16 | 2016-10-04 | Cirrus Logic, Inc. | Systems and methods for hybrid adaptive noise cancellation |
US9478210B2 (en) | 2013-04-17 | 2016-10-25 | Cirrus Logic, Inc. | Systems and methods for hybrid adaptive noise cancellation |
US9578432B1 (en) | 2013-04-24 | 2017-02-21 | Cirrus Logic, Inc. | Metric and tool to evaluate secondary path design in adaptive noise cancellation systems |
US9666176B2 (en) | 2013-09-13 | 2017-05-30 | Cirrus Logic, Inc. | Systems and methods for adaptive noise cancellation by adaptively shaping internal white noise to train a secondary path |
US9620101B1 (en) | 2013-10-08 | 2017-04-11 | Cirrus Logic, Inc. | Systems and methods for maintaining playback fidelity in an audio system with adaptive noise cancellation |
US9704472B2 (en) | 2013-12-10 | 2017-07-11 | Cirrus Logic, Inc. | Systems and methods for sharing secondary path information between audio channels in an adaptive noise cancellation system |
US10382864B2 (en) | 2013-12-10 | 2019-08-13 | Cirrus Logic, Inc. | Systems and methods for providing adaptive playback equalization in an audio device |
US10219071B2 (en) | 2013-12-10 | 2019-02-26 | Cirrus Logic, Inc. | Systems and methods for bandlimiting anti-noise in personal audio devices having adaptive noise cancellation |
US9369557B2 (en) | 2014-03-05 | 2016-06-14 | Cirrus Logic, Inc. | Frequency-dependent sidetone calibration |
US10181315B2 (en) | 2014-06-13 | 2019-01-15 | Cirrus Logic, Inc. | Systems and methods for selectively enabling and disabling adaptation of an adaptive noise cancellation system |
US9478212B1 (en) | 2014-09-03 | 2016-10-25 | Cirrus Logic, Inc. | Systems and methods for use of adaptive secondary path estimate to control equalization in an audio device |
US9240819B1 (en) * | 2014-10-02 | 2016-01-19 | Bose Corporation | Self-tuning transfer function for adaptive filtering |
US9837065B2 (en) * | 2014-12-08 | 2017-12-05 | Ford Global Technologies, Llc | Variable bandwidth delayless subband algorithm for broadband active noise control system |
US9552805B2 (en) | 2014-12-19 | 2017-01-24 | Cirrus Logic, Inc. | Systems and methods for performance and stability control for feedback adaptive noise cancellation |
JP2016177204A (en) * | 2015-03-20 | 2016-10-06 | ヤマハ株式会社 | Sound masking device |
KR20180044324A (en) | 2015-08-20 | 2018-05-02 | 시러스 로직 인터내셔널 세미컨덕터 리미티드 | A feedback adaptive noise cancellation (ANC) controller and a method having a feedback response partially provided by a fixed response filter |
US9578415B1 (en) | 2015-08-21 | 2017-02-21 | Cirrus Logic, Inc. | Hybrid adaptive noise cancellation system with filtered error microphone signal |
US10013966B2 (en) | 2016-03-15 | 2018-07-03 | Cirrus Logic, Inc. | Systems and methods for adaptive active noise cancellation for multiple-driver personal audio device |
GB2551464A (en) * | 2016-03-17 | 2017-12-27 | Jaguar Land Rover Ltd | Apparatus and method for noise cancellation |
JP6999187B2 (en) * | 2016-09-16 | 2022-01-18 | エイブイエイトロニクス・エスエイ | Active noise elimination system for headphones |
GB2560498A (en) * | 2017-03-02 | 2018-09-19 | Jaguar Land Rover Ltd | System and method for noise cancellation |
WO2019055769A1 (en) * | 2017-09-15 | 2019-03-21 | Harman International Industries, Incorporated | Frequency-based causality binary limiter for active noise control systems |
JP7292796B2 (en) * | 2019-05-22 | 2023-06-19 | アルパイン株式会社 | Active noise control system |
CN112233644A (en) * | 2020-11-04 | 2021-01-15 | 华北电力大学 | Filtering-X least mean square active noise control method based on quaternion adaptive filter |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2890196B2 (en) * | 1986-10-07 | 1999-05-10 | アダプティブ コントロール リミテッド | Active vibration control device or related improvements |
US5117401A (en) * | 1990-08-16 | 1992-05-26 | Hughes Aircraft Company | Active adaptive noise canceller without training mode |
-
1992
- 1992-09-30 JP JP4261163A patent/JP2924496B2/en not_active Expired - Fee Related
-
1993
- 1993-09-03 EP EP93114166A patent/EP0590350B1/en not_active Expired - Lifetime
- 1993-09-03 DE DE69330544T patent/DE69330544T2/en not_active Expired - Fee Related
- 1993-09-08 US US08/117,717 patent/US5377276A/en not_active Expired - Lifetime
- 1993-09-16 CA CA002106338A patent/CA2106338C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5377276A (en) | 1994-12-27 |
CA2106338C (en) | 1999-11-30 |
JPH06110469A (en) | 1994-04-22 |
EP0590350A3 (en) | 1995-08-09 |
DE69330544D1 (en) | 2001-09-13 |
EP0590350B1 (en) | 2001-08-08 |
JP2924496B2 (en) | 1999-07-26 |
DE69330544T2 (en) | 2001-11-22 |
EP0590350A2 (en) | 1994-04-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |