NO20085371L - Forhoyet toroidmikrofonapparat - Google Patents

Forhoyet toroidmikrofonapparat

Info

Publication number
NO20085371L
NO20085371L NO20085371A NO20085371A NO20085371L NO 20085371 L NO20085371 L NO 20085371L NO 20085371 A NO20085371 A NO 20085371A NO 20085371 A NO20085371 A NO 20085371A NO 20085371 L NO20085371 L NO 20085371L
Authority
NO
Norway
Prior art keywords
microphone
sensitivity
elevated
pattern
support surface
Prior art date
Application number
NO20085371A
Other languages
English (en)
Other versions
NO332961B1 (no
Inventor
Trygve Frederik Marton
Original Assignee
Tandberg Telecom 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 Tandberg Telecom As filed Critical Tandberg Telecom As
Priority to NO20085371A priority Critical patent/NO332961B1/no
Priority to CN200980152438.9A priority patent/CN102265641B/zh
Priority to PCT/NO2009/000442 priority patent/WO2010074583A1/en
Priority to EP09835320.4A priority patent/EP2382798B1/en
Priority to US12/645,701 priority patent/US8472640B2/en
Publication of NO20085371L publication Critical patent/NO20085371L/no
Publication of NO332961B1 publication Critical patent/NO332961B1/no

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/005Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/56Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403Linear arrays of transducers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/405Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00Signal processing covered by H04R, not provided for in its groups
    • H04R2430/03Synergistic effects of band splitting and sub-band processing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

En retningsbestemt mikrofon for videotelekonferanser innbefatter tre mikrofonelementer anordnet sammenfallende på en vertikal akse. De tre mikrofonelementene er plassert på en støtteflate slik at det første mikrofonelementet er på flaten, og de andre og tredje mikrofonelementer er forhøyet over støtteflaten. Den retningsbestemte mikrofonen innbefatter også tre filtre, en summeringsnode, og en equalizer, som benyttes for å forme direktivitetsmønsteret for retningsmikrofonen til et forhøyet toroidsensitivitetsmønster. Det forhøyede toroidsensitivitetsmønsteret øker sensitiviteten i retningen av en aktuell lydkilde, men reduserer sensitiviteten overfor andre lydbølger generert av støykilder på andre steder.
NO20085371A 2008-12-23 2008-12-23 Forhoyet toroidmikrofonapparat NO332961B1 (no)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NO20085371A NO332961B1 (no) 2008-12-23 2008-12-23 Forhoyet toroidmikrofonapparat
CN200980152438.9A CN102265641B (zh) 2008-12-23 2009-12-21 高架环形麦克风设备和方法
PCT/NO2009/000442 WO2010074583A1 (en) 2008-12-23 2009-12-21 Elevated toroid microphone apparatus and method
EP09835320.4A EP2382798B1 (en) 2008-12-23 2009-12-21 Elevated toroid microphone apparatus and method
US12/645,701 US8472640B2 (en) 2008-12-23 2009-12-23 Elevated toroid microphone apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20085371A NO332961B1 (no) 2008-12-23 2008-12-23 Forhoyet toroidmikrofonapparat

Publications (2)

Publication Number Publication Date
NO20085371L true NO20085371L (no) 2010-06-24
NO332961B1 NO332961B1 (no) 2013-02-11

Family

ID=40888107

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20085371A NO332961B1 (no) 2008-12-23 2008-12-23 Forhoyet toroidmikrofonapparat

Country Status (5)

Country Link
US (1) US8472640B2 (no)
EP (1) EP2382798B1 (no)
CN (1) CN102265641B (no)
NO (1) NO332961B1 (no)
WO (1) WO2010074583A1 (no)

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US8284955B2 (en) * 2006-02-07 2012-10-09 Bongiovi Acoustics Llc System and method for digital signal processing
US10158337B2 (en) 2004-08-10 2018-12-18 Bongiovi Acoustics Llc System and method for digital signal processing
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
US8259959B2 (en) * 2008-12-23 2012-09-04 Cisco Technology, Inc. Toroid microphone apparatus
CN102469387B (zh) * 2010-11-15 2014-10-22 财团法人工业技术研究院 抑制噪音系统与方法
US9282405B2 (en) * 2012-04-24 2016-03-08 Polycom, Inc. Automatic microphone muting of undesired noises by microphone arrays
US9113243B2 (en) 2012-08-16 2015-08-18 Cisco Technology, Inc. Method and system for obtaining an audio signal
US20150365762A1 (en) * 2012-11-24 2015-12-17 Polycom, Inc. Acoustic perimeter for reducing noise transmitted by a communication device in an open-plan environment
US9344828B2 (en) * 2012-12-21 2016-05-17 Bongiovi Acoustics Llc. System and method for digital signal processing
US9294839B2 (en) 2013-03-01 2016-03-22 Clearone, Inc. Augmentation of a beamforming microphone array with non-beamforming microphones
US9883318B2 (en) 2013-06-12 2018-01-30 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
US9264004B2 (en) 2013-06-12 2016-02-16 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
US9615813B2 (en) 2014-04-16 2017-04-11 Bongiovi Acoustics Llc. Device for wide-band auscultation
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US9564146B2 (en) 2014-08-01 2017-02-07 Bongiovi Acoustics Llc System and method for digital signal processing in deep diving environment
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
US9565493B2 (en) 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
US9554207B2 (en) * 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
WO2017087495A1 (en) 2015-11-16 2017-05-26 Bongiovi Acoustics Llc Surface acoustic transducer
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
KR20200143707A (ko) 2018-04-11 2020-12-24 본지오비 어커스틱스 엘엘씨 오디오 향상 청력 보호 시스템
US11523212B2 (en) 2018-06-01 2022-12-06 Shure Acquisition Holdings, Inc. Pattern-forming microphone array
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
US10959035B2 (en) 2018-08-02 2021-03-23 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
EP3854108A1 (en) 2018-09-20 2021-07-28 Shure Acquisition Holdings, Inc. Adjustable lobe shape for array microphones
EP3942842A1 (en) 2019-03-21 2022-01-26 Shure Acquisition Holdings, Inc. Housings and associated design features for ceiling array microphones
US11438691B2 (en) 2019-03-21 2022-09-06 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition functionality
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
US10834498B2 (en) * 2019-03-27 2020-11-10 Lenovo (Singapore) Pte. Ltd. Using image data to adjust a microphone setting
US11445294B2 (en) 2019-05-23 2022-09-13 Shure Acquisition Holdings, Inc. Steerable speaker array, system, and method for the same
TW202105369A (zh) 2019-05-31 2021-02-01 美商舒爾獲得控股公司 整合語音及雜訊活動偵測之低延時自動混波器
US11222652B2 (en) * 2019-07-19 2022-01-11 Apple Inc. Learning-based distance estimation
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Also Published As

Publication number Publication date
US8472640B2 (en) 2013-06-25
EP2382798A1 (en) 2011-11-02
EP2382798A4 (en) 2013-12-04
CN102265641B (zh) 2014-09-24
US20100166219A1 (en) 2010-07-01
CN102265641A (zh) 2011-11-30
NO332961B1 (no) 2013-02-11
WO2010074583A1 (en) 2010-07-01
EP2382798B1 (en) 2014-11-19

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