KR101651794B1 - 초음파를 이용한 에코 제거 - Google Patents

초음파를 이용한 에코 제거 Download PDF

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Publication number
KR101651794B1
KR101651794B1 KR1020157011615A KR20157011615A KR101651794B1 KR 101651794 B1 KR101651794 B1 KR 101651794B1 KR 1020157011615 A KR1020157011615 A KR 1020157011615A KR 20157011615 A KR20157011615 A KR 20157011615A KR 101651794 B1 KR101651794 B1 KR 101651794B1
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South Korea
Prior art keywords
frame
signal
predetermined values
transmission sequence
processed frame
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KR1020157011615A
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English (en)
Korean (ko)
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KR20150084814A (ko
Inventor
마이클 레비안트
노엄 다간
후이-야 리아오 넬슨
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퀄컴 인코포레이티드
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    • 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
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/14—Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic or infrasonic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic or infrasonic waves
    • G01S5/22—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
KR1020157011615A 2012-11-15 2013-10-21 초음파를 이용한 에코 제거 Expired - Fee Related KR101651794B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201261727011P 2012-11-15 2012-11-15
US61/727,011 2012-11-15
US13/841,359 2013-03-15
US13/841,359 US9210270B2 (en) 2012-11-15 2013-03-15 Echo cancellation for ultrasound

Publications (2)

Publication Number Publication Date
KR20150084814A KR20150084814A (ko) 2015-07-22
KR101651794B1 true KR101651794B1 (ko) 2016-08-26

Family

ID=50682228

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020157011615A Expired - Fee Related KR101651794B1 (ko) 2012-11-15 2013-10-21 초음파를 이용한 에코 제거

Country Status (6)

Country Link
US (1) US9210270B2 (https=)
EP (1) EP2920947B1 (https=)
JP (1) JP5978404B2 (https=)
KR (1) KR101651794B1 (https=)
CN (1) CN104769926B (https=)
WO (1) WO2014078016A1 (https=)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9831843B1 (en) 2013-09-05 2017-11-28 Cirrus Logic, Inc. Opportunistic playback state changes for audio devices
US9774342B1 (en) * 2014-03-05 2017-09-26 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system
US9525940B1 (en) 2014-03-05 2016-12-20 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system
US9306588B2 (en) 2014-04-14 2016-04-05 Cirrus Logic, Inc. Switchable secondary playback path
KR102208696B1 (ko) * 2014-05-13 2021-01-28 삼성전자주식회사 센서 데이터 획득 방법 및 그 장치
US10785568B2 (en) 2014-06-26 2020-09-22 Cirrus Logic, Inc. Reducing audio artifacts in a system for enhancing dynamic range of audio signal path
US9596537B2 (en) 2014-09-11 2017-03-14 Cirrus Logic, Inc. Systems and methods for reduction of audio artifacts in an audio system with dynamic range enhancement
US9503027B2 (en) 2014-10-27 2016-11-22 Cirrus Logic, Inc. Systems and methods for dynamic range enhancement using an open-loop modulator in parallel with a closed-loop modulator
US9940824B2 (en) * 2015-03-13 2018-04-10 Honeywell International Inc. System and method of self-monitoring notification appliances
US9584911B2 (en) 2015-03-27 2017-02-28 Cirrus Logic, Inc. Multichip dynamic range enhancement (DRE) audio processing methods and apparatuses
US9959856B2 (en) 2015-06-15 2018-05-01 Cirrus Logic, Inc. Systems and methods for reducing artifacts and improving performance of a multi-path analog-to-digital converter
US9955254B2 (en) 2015-11-25 2018-04-24 Cirrus Logic, Inc. Systems and methods for preventing distortion due to supply-based modulation index changes in an audio playback system
US9543975B1 (en) 2015-12-29 2017-01-10 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system with low-pass filter between paths
US9880802B2 (en) 2016-01-21 2018-01-30 Cirrus Logic, Inc. Systems and methods for reducing audio artifacts from switching between paths of a multi-path signal processing system
US9998826B2 (en) 2016-06-28 2018-06-12 Cirrus Logic, Inc. Optimization of performance and power in audio system
US10545561B2 (en) 2016-08-10 2020-01-28 Cirrus Logic, Inc. Multi-path digitation based on input signal fidelity and output requirements
US10263630B2 (en) 2016-08-11 2019-04-16 Cirrus Logic, Inc. Multi-path analog front end with adaptive path
US9813814B1 (en) 2016-08-23 2017-11-07 Cirrus Logic, Inc. Enhancing dynamic range based on spectral content of signal
US9762255B1 (en) 2016-09-19 2017-09-12 Cirrus Logic, Inc. Reconfiguring paths in a multiple path analog-to-digital converter
US9780800B1 (en) 2016-09-19 2017-10-03 Cirrus Logic, Inc. Matching paths in a multiple path analog-to-digital converter
US9929703B1 (en) 2016-09-27 2018-03-27 Cirrus Logic, Inc. Amplifier with configurable final output stage
US9967665B2 (en) 2016-10-05 2018-05-08 Cirrus Logic, Inc. Adaptation of dynamic range enhancement based on noise floor of signal
US10321230B2 (en) 2017-04-07 2019-06-11 Cirrus Logic, Inc. Switching in an audio system with multiple playback paths
US10008992B1 (en) 2017-04-14 2018-06-26 Cirrus Logic, Inc. Switching in amplifier with configurable final output stage
US9917557B1 (en) 2017-04-17 2018-03-13 Cirrus Logic, Inc. Calibration for amplifier with configurable final output stage
US10277981B1 (en) * 2018-10-02 2019-04-30 Sonos, Inc. Systems and methods of user localization
TWI790718B (zh) * 2021-08-19 2023-01-21 宏碁股份有限公司 會議終端及用於會議的回音消除方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2107198A1 (en) 1993-09-28 1995-03-29 D. Erle Nelson Method and apparatus for accurate acoustic distance measurement
US20080198779A1 (en) 2007-02-15 2008-08-21 Infineon Technologies Agst. Multi-channel communication device and methods for reducing echoes by inserting a training sequence under a spectral mask
US20120213380A1 (en) 2009-10-29 2012-08-23 Universite Paris Descartes Method and Device for Cancelling Acoustic Echo by Audio Watermarking

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6563925B1 (en) * 1999-04-07 2003-05-13 Ericsson Inc. Method and apparatus for space-time echo cancellation
JP2000341658A (ja) * 1999-05-27 2000-12-08 Nec Eng Ltd 話者方向検出システム
US7515704B2 (en) 2004-01-05 2009-04-07 Telukuntla Krishna Prabhu N V R Method, apparatus and articles incorporating a step size control technique for echo signal cancellation
US7720232B2 (en) 2004-10-15 2010-05-18 Lifesize Communications, Inc. Speakerphone
US20080317241A1 (en) 2006-06-14 2008-12-25 Derek Wang Code-based echo cancellation
DE112007003625T5 (de) 2007-08-24 2010-07-15 Fujitsu Ltd., Kawasaki Echounterdrückungsvorrichtung, echounterdrückungssystem, Echounterdrückungsverfahren und Computerprogramm
EP2045620B1 (en) 2007-09-26 2015-08-12 Harman Becker Automotive Systems GmbH Acoustic propagation delay measurement
JP5405130B2 (ja) * 2009-01-09 2014-02-05 クラリオン株式会社 音再生装置および音再生方法
EP2221983B1 (en) 2009-02-20 2011-08-31 Harman Becker Automotive Systems GmbH Acoustic echo cancellation
JP2011227199A (ja) * 2010-04-16 2011-11-10 Nec Casio Mobile Communications Ltd 雑音抑圧装置、雑音抑圧方法及びプログラム
US8619970B2 (en) 2010-06-16 2013-12-31 Lectrosonics, Inc. Echo cancellers and echo cancelling methods
US8553904B2 (en) * 2010-10-14 2013-10-08 Hewlett-Packard Development Company, L.P. Systems and methods for performing sound source localization
GB2495131A (en) * 2011-09-30 2013-04-03 Skype A mobile device includes a received-signal beamformer that adapts to motion of the mobile device
US8903108B2 (en) * 2011-12-06 2014-12-02 Apple Inc. Near-field null and beamforming

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2107198A1 (en) 1993-09-28 1995-03-29 D. Erle Nelson Method and apparatus for accurate acoustic distance measurement
US20080198779A1 (en) 2007-02-15 2008-08-21 Infineon Technologies Agst. Multi-channel communication device and methods for reducing echoes by inserting a training sequence under a spectral mask
US20120213380A1 (en) 2009-10-29 2012-08-23 Universite Paris Descartes Method and Device for Cancelling Acoustic Echo by Audio Watermarking

Also Published As

Publication number Publication date
EP2920947A1 (en) 2015-09-23
JP2016500236A (ja) 2016-01-07
JP5978404B2 (ja) 2016-08-24
US20140135077A1 (en) 2014-05-15
CN104769926B (zh) 2017-03-22
EP2920947B1 (en) 2016-09-21
KR20150084814A (ko) 2015-07-22
WO2014078016A1 (en) 2014-05-22
US9210270B2 (en) 2015-12-08
CN104769926A (zh) 2015-07-08

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