NO20012043D0 - Mikrofongruppe med höy direktivitet - Google Patents

Mikrofongruppe med höy direktivitet

Info

Publication number
NO20012043D0
NO20012043D0 NO20012043A NO20012043A NO20012043D0 NO 20012043 D0 NO20012043 D0 NO 20012043D0 NO 20012043 A NO20012043 A NO 20012043A NO 20012043 A NO20012043 A NO 20012043A NO 20012043 D0 NO20012043 D0 NO 20012043D0
Authority
NO
Norway
Prior art keywords
microphones
microphone array
pair
centerline
cut
Prior art date
Application number
NO20012043A
Other languages
English (en)
Other versions
NO20012043L (no
Inventor
Martin Rung
Original Assignee
Gn Netcom As
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 Gn Netcom As filed Critical Gn Netcom As
Publication of NO20012043D0 publication Critical patent/NO20012043D0/no
Publication of NO20012043L publication Critical patent/NO20012043L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

  • Signal Processing (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Multicomponent Fibers (AREA)
NO20012043A 1998-11-12 2001-04-26 Mikrofongruppe med stor direktivitet NO20012043L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/191,208 US6526147B1 (en) 1998-11-12 1998-11-12 Microphone array with high directivity
PCT/DK1999/000622 WO2000030402A1 (en) 1998-11-12 1999-11-12 Microphone array with high directivity

Publications (2)

Publication Number Publication Date
NO20012043D0 true NO20012043D0 (no) 2001-04-26
NO20012043L NO20012043L (no) 2001-06-21

Family

ID=22704549

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20012043A NO20012043L (no) 1998-11-12 2001-04-26 Mikrofongruppe med stor direktivitet

Country Status (14)

Country Link
US (1) US6526147B1 (no)
EP (1) EP1133895B1 (no)
JP (1) JP2002530964A (no)
KR (1) KR100595475B1 (no)
CN (1) CN1155292C (no)
AT (1) ATE256958T1 (no)
AU (1) AU753058B2 (no)
CA (1) CA2350549A1 (no)
DE (1) DE69913732T2 (no)
DK (1) DK1133895T3 (no)
ES (1) ES2212680T3 (no)
HK (1) HK1038675B (no)
NO (1) NO20012043L (no)
WO (1) WO2000030402A1 (no)

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US8189825B2 (en) * 1994-05-09 2012-05-29 Breed David S Sound management techniques for vehicles
JP3541339B2 (ja) * 1997-06-26 2004-07-07 富士通株式会社 マイクロホンアレイ装置
WO2002028140A2 (en) * 2000-09-29 2002-04-04 Knowles Electronics, Llc Second order microphone array
DE10140523B4 (de) * 2001-08-17 2005-08-18 Dietmar Dr. Ruwisch Vorrichtung zum Feedback Cancelling bei der Ausgabe von Mikrofonsignalen durch Lautsprecher
US9124972B2 (en) * 2001-12-18 2015-09-01 Intel Corporation Voice-bearing light
US20030147539A1 (en) * 2002-01-11 2003-08-07 Mh Acoustics, Llc, A Delaware Corporation Audio system based on at least second-order eigenbeams
JP2006523058A (ja) * 2003-04-08 2006-10-05 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ マイクロフォン信号における干渉ノイズ信号部分を低減する方法及び装置
FR2858403B1 (fr) * 2003-07-31 2005-11-18 Remy Henri Denis Bruno Systeme et procede de determination d'une representation d'un champ acoustique
DK176894B1 (da) 2004-01-29 2010-03-08 Dpa Microphones As Mikrofonstruktur med retningsvirkning
US7826624B2 (en) * 2004-10-15 2010-11-02 Lifesize Communications, Inc. Speakerphone self calibration and beam forming
US7970151B2 (en) * 2004-10-15 2011-06-28 Lifesize Communications, Inc. Hybrid beamforming
WO2006093237A1 (ja) * 2005-03-04 2006-09-08 Dai Nippon Printing Co., Ltd. 光学素子
EP1856948B1 (en) 2005-03-09 2011-10-05 MH Acoustics, LLC Position-independent microphone system
JP5123843B2 (ja) 2005-03-16 2013-01-23 コクス，ジェイムズ マイクロフォンアレイおよびデジタル信号処理システム
US7970150B2 (en) * 2005-04-29 2011-06-28 Lifesize Communications, Inc. Tracking talkers using virtual broadside scan and directed beams
US7991167B2 (en) * 2005-04-29 2011-08-02 Lifesize Communications, Inc. Forming beams with nulls directed at noise sources
KR100873000B1 (ko) * 2007-03-28 2008-12-09 경상대학교산학협력단 마이크 어레이를 이용한 방향성 음원 필터링 시스템 및 그방법
US7626889B2 (en) * 2007-04-06 2009-12-01 Microsoft Corporation Sensor array post-filter for tracking spatial distributions of signals and noise
EP2063419B1 (en) * 2007-11-21 2012-04-18 Nuance Communications, Inc. Speaker localization
US9197962B2 (en) 2013-03-15 2015-11-24 Mh Acoustics Llc Polyhedral audio system based on at least second-order eigenbeams
US9554207B2 (en) 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
US9565493B2 (en) 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
EP3804356A1 (en) 2018-06-01 2021-04-14 Shure Acquisition Holdings, Inc. Pattern-forming microphone array
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
WO2020061353A1 (en) 2018-09-20 2020-03-26 Shure Acquisition Holdings, Inc. Adjustable lobe shape for array microphones
CN113841421A (zh) 2019-03-21 2021-12-24 舒尔获得控股公司 具有抑制功能的波束形成麦克风瓣的自动对焦、区域内自动对焦、及自动配置
US11558693B2 (en) 2019-03-21 2023-01-17 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality
EP3942842A1 (en) 2019-03-21 2022-01-26 Shure Acquisition Holdings, Inc. Housings and associated design features for ceiling array microphones
EP3973716A1 (en) 2019-05-23 2022-03-30 Shure Acquisition Holdings, Inc. Steerable speaker array, system, and method for the same
JP2022535229A (ja) 2019-05-31 2022-08-05 シュアー アクイジッション ホールディングス インコーポレイテッド 音声およびノイズアクティビティ検出と統合された低レイテンシオートミキサー
EP4018680A1 (en) 2019-08-23 2022-06-29 Shure Acquisition Holdings, Inc. Two-dimensional microphone array with improved directivity
US11552611B2 (en) 2020-02-07 2023-01-10 Shure Acquisition Holdings, Inc. System and method for automatic adjustment of reference gain
US11706562B2 (en) 2020-05-29 2023-07-18 Shure Acquisition Holdings, Inc. Transducer steering and configuration systems and methods using a local positioning system
WO2022031872A1 (en) 2020-08-04 2022-02-10 Owl Labs Inc. Designated view within a multi-view composited webcam signal
WO2022046810A2 (en) 2020-08-24 2022-03-03 Owl Labs Inc. Merging webcam signals from multiple cameras
US11696083B2 (en) 2020-10-21 2023-07-04 Mh Acoustics, Llc In-situ calibration of microphone arrays
US11785380B2 (en) 2021-01-28 2023-10-10 Shure Acquisition Holdings, Inc. Hybrid audio beamforming system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE821219C (de) 1949-12-03 1951-11-15 Siemens & Halske A G Gerichtete Mikrophon- oder Lautsprecheranordnung
US4311874A (en) * 1979-12-17 1982-01-19 Bell Telephone Laboratories, Incorporated Teleconference microphone arrays
JPS5939198A (ja) 1982-08-27 1984-03-03 Victor Co Of Japan Ltd マイクロホン装置
DE3633991A1 (de) 1986-10-06 1988-04-14 Krupp Gmbh Wandleranordnung
JPH0728470B2 (ja) * 1989-02-03 1995-03-29 松下電器産業株式会社 アレイマイクロホン
US5657393A (en) 1993-07-30 1997-08-12 Crow; Robert P. Beamed linear array microphone system
US5581620A (en) 1994-04-21 1996-12-03 Brown University Research Foundation Methods and apparatus for adaptive beamforming
DE4445549C1 (de) * 1994-12-20 1996-03-07 Stn Atlas Elektronik Gmbh Schleppantenne
US5862240A (en) * 1995-02-10 1999-01-19 Sony Corporation Microphone device
FR2742960B1 (fr) 1995-12-22 1998-02-20 Mahieux Yannick Antenne acoustique pour station de travail informatique
US5848172A (en) * 1996-11-22 1998-12-08 Lucent Technologies Inc. Directional microphone
JP3797751B2 (ja) * 1996-11-27 2006-07-19 富士通株式会社 マイクロホンシステム
JP3541339B2 (ja) * 1997-06-26 2004-07-07 富士通株式会社 マイクロホンアレイ装置

Also Published As

Publication number Publication date
AU1151000A (en) 2000-06-05
WO2000030402A1 (en) 2000-05-25
ES2212680T3 (es) 2004-07-16
KR20010100991A (ko) 2001-11-14
AU753058B2 (en) 2002-10-03
EP1133895B1 (en) 2003-12-17
HK1038675B (zh) 2004-05-07
KR100595475B1 (ko) 2006-07-03
NO20012043L (no) 2001-06-21
HK1038675A1 (en) 2002-03-22
CN1325605A (zh) 2001-12-05
DK1133895T3 (da) 2004-03-29
JP2002530964A (ja) 2002-09-17
CA2350549A1 (en) 2000-05-25
DE69913732D1 (de) 2004-01-29
CN1155292C (zh) 2004-06-23
ATE256958T1 (de) 2004-01-15
DE69913732T2 (de) 2004-10-14
EP1133895A1 (en) 2001-09-19
US6526147B1 (en) 2003-02-25

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Legal Events

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