GB0725108D0 - Slow rate adaption - Google Patents

Slow rate adaption

Info

Publication number
GB0725108D0
GB0725108D0 GB0725108A GB0725108A GB0725108D0 GB 0725108 D0 GB0725108 D0 GB 0725108D0 GB 0725108 A GB0725108 A GB 0725108A GB 0725108 A GB0725108 A GB 0725108A GB 0725108 D0 GB0725108 D0 GB 0725108D0
Authority
GB
United Kingdom
Prior art keywords
slow rate
rate adaption
adaption
slow
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.)
Ceased
Application number
GB0725108A
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.)
Cirrus Logic International (UK) Ltd
Original Assignee
Cirrus Logic International (UK) Ltd
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 Cirrus Logic International (UK) Ltd filed Critical Cirrus Logic International (UK) Ltd
Priority to GB0725108A priority Critical patent/GB0725108D0/en
Publication of GB0725108D0 publication Critical patent/GB0725108D0/en
Application status is Ceased legal-status Critical

Links

GB0725108A 2007-12-21 2007-12-21 Slow rate adaption Ceased GB0725108D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0725108A GB0725108D0 (en) 2007-12-21 2007-12-21 Slow rate adaption

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0725108A GB0725108D0 (en) 2007-12-21 2007-12-21 Slow rate adaption
GB0811001A GB2455828B (en) 2007-12-21 2008-06-16 Slow rate adaption
PCT/GB2008/051188 WO2009081192A1 (en) 2007-12-21 2008-12-15 Active noise cancellation system with slow rate adaptation of adaptive filter

Publications (1)

Publication Number Publication Date
GB0725108D0 true GB0725108D0 (en) 2008-01-30

Family

ID=39048657

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0725108A Ceased GB0725108D0 (en) 2007-12-21 2007-12-21 Slow rate adaption
GB0811001A Active GB2455828B (en) 2007-12-21 2008-06-16 Slow rate adaption

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0811001A Active GB2455828B (en) 2007-12-21 2008-06-16 Slow rate adaption

Country Status (2)

Country Link
GB (2) GB0725108D0 (en)
WO (1) WO2009081192A1 (en)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
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US8737636B2 (en) 2009-07-10 2014-05-27 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation
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
US9076431B2 (en) 2011-06-03 2015-07-07 Cirrus Logic, Inc. Filter architecture for an adaptive noise canceler in a personal audio device
US9318094B2 (en) * 2011-06-03 2016-04-19 Cirrus Logic, Inc. Adaptive noise canceling architecture for a personal audio device
US8848936B2 (en) 2011-06-03 2014-09-30 Cirrus Logic, Inc. Speaker damage prevention in adaptive noise-canceling personal audio devices
US9214150B2 (en) 2011-06-03 2015-12-15 Cirrus Logic, Inc. Continuous adaptation of secondary path adaptive response in noise-canceling personal audio devices
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
US9325821B1 (en) 2011-09-30 2016-04-26 Cirrus Logic, Inc. Sidetone management in an adaptive noise canceling (ANC) system including secondary path modeling
US8948407B2 (en) 2011-06-03 2015-02-03 Cirrus Logic, Inc. Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC)
US9014387B2 (en) 2012-04-26 2015-04-21 Cirrus Logic, Inc. Coordinated control of adaptive noise cancellation (ANC) among earspeaker channels
US9142205B2 (en) 2012-04-26 2015-09-22 Cirrus Logic, Inc. Leakage-modeling adaptive noise canceling for earspeakers
US9076427B2 (en) 2012-05-10 2015-07-07 Cirrus Logic, Inc. Error-signal content controlled adaptation of secondary and leakage path models in noise-canceling personal audio devices
US9082387B2 (en) 2012-05-10 2015-07-14 Cirrus Logic, Inc. Noise burst adaptation of secondary path adaptive response in noise-canceling personal audio devices
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
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)
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
US9532139B1 (en) 2012-09-14 2016-12-27 Cirrus Logic, Inc. Dual-microphone frequency amplitude response self-calibration
US9107010B2 (en) 2013-02-08 2015-08-11 Cirrus Logic, Inc. Ambient noise root mean square (RMS) detector
US9369798B1 (en) 2013-03-12 2016-06-14 Cirrus Logic, Inc. Internal dynamic range control in an adaptive noise cancellation (ANC) system
US9106989B2 (en) 2013-03-13 2015-08-11 Cirrus Logic, Inc. Adaptive-noise canceling (ANC) effectiveness estimation and correction in a personal audio device
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
US9215749B2 (en) 2013-03-14 2015-12-15 Cirrus Logic, Inc. Reducing an acoustic intensity vector with adaptive noise cancellation with two error microphones
US9502020B1 (en) 2013-03-15 2016-11-22 Cirrus Logic, Inc. Robust adaptive noise canceling (ANC) in a personal audio device
US9467776B2 (en) 2013-03-15 2016-10-11 Cirrus Logic, Inc. Monitoring of speaker impedance to detect pressure applied between mobile device and ear
US9208771B2 (en) 2013-03-15 2015-12-08 Cirrus Logic, Inc. Ambient noise-based adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9635480B2 (en) 2013-03-15 2017-04-25 Cirrus Logic, Inc. Speaker impedance monitoring
US10206032B2 (en) 2013-04-10 2019-02-12 Cirrus Logic, Inc. Systems and methods for multi-mode adaptive noise cancellation for audio headsets
US9066176B2 (en) 2013-04-15 2015-06-23 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation including dynamic bias of coefficients of an adaptive noise cancellation system
US9462376B2 (en) 2013-04-16 2016-10-04 Cirrus Logic, Inc. Systems and methods for hybrid adaptive noise cancellation
US9460701B2 (en) 2013-04-17 2016-10-04 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation by biasing anti-noise level
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
US9264808B2 (en) 2013-06-14 2016-02-16 Cirrus Logic, Inc. Systems and methods for detection and cancellation of narrow-band noise
US9392364B1 (en) 2013-08-15 2016-07-12 Cirrus Logic, Inc. Virtual microphone for adaptive noise cancellation in personal audio devices
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
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
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
US9369557B2 (en) 2014-03-05 2016-06-14 Cirrus Logic, Inc. Frequency-dependent sidetone calibration
US9479860B2 (en) 2014-03-07 2016-10-25 Cirrus Logic, Inc. Systems and methods for enhancing performance of audio transducer based on detection of transducer status
US9648410B1 (en) 2014-03-12 2017-05-09 Cirrus Logic, Inc. Control of audio output of headphone earbuds based on the environment around the headphone earbuds
US9319784B2 (en) 2014-04-14 2016-04-19 Cirrus Logic, Inc. Frequency-shaped noise-based adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9609416B2 (en) 2014-06-09 2017-03-28 Cirrus Logic, Inc. Headphone responsive to optical signaling
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
US9894438B2 (en) 2014-09-30 2018-02-13 Avnera Corporation Acoustic processor having low latency
KR20170084054A (en) * 2014-09-30 2017-07-19 아브네라 코포레이션 Aoustic processor having low latency
US9552805B2 (en) 2014-12-19 2017-01-24 Cirrus Logic, Inc. Systems and methods for performance and stability control for feedback adaptive noise cancellation
JP2018530940A (en) 2015-08-20 2018-10-18 シーラス ロジック インターナショナル セミコンダクター リミテッド Feedback adaptive noise cancellation (ANC) controller and method with feedback response provided in part 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
CA3055910A1 (en) 2017-03-09 2018-09-13 Avnera Corporaton Real-time acoustic processor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04366899A (en) * 1991-06-14 1992-12-18 Matsushita Electric Ind Co Ltd Active noise reducing device
US5553153A (en) * 1993-02-10 1996-09-03 Noise Cancellation Technologies, Inc. Method and system for on-line system identification
US5388080A (en) * 1993-04-27 1995-02-07 Hughes Aircraft Company Non-integer sample delay active noise canceller
GB2293898B (en) * 1994-10-03 1998-10-14 Lotus Car Adaptive control system for controlling repetitive phenomena
US5852667A (en) * 1995-07-03 1998-12-22 Pan; Jianhua Digital feed-forward active noise control system
EP0973151B8 (en) * 1998-07-16 2009-02-25 Panasonic Corporation Noise control system
WO2002069316A2 (en) * 2001-02-27 2002-09-06 Sikorsky Aircraft Corporation System for computationally efficient active control of tonal sound or vibration
GB2437772B8 (en) * 2006-04-12 2008-09-17 Wolfson Microelectronics Plc Digital circuit arrangements for ambient noise-reduction.

Also Published As

Publication number Publication date
GB2455828A (en) 2009-06-24
GB2455828B (en) 2010-06-09
GB0811001D0 (en) 2008-07-23
WO2009081192A1 (en) 2009-07-02

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)