NO20085371L - Forhoyet toroidmikrofonapparat - Google Patents
Forhoyet toroidmikrofonapparatInfo
- 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
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
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
-
- 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
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details 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
- H04R2201/403—Linear arrays of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details 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
- H04R2201/405—Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/03—Synergistic effects of band splitting and sub-band processing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing 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.
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) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11431312B2 (en) | 2004-08-10 | 2022-08-30 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10848118B2 (en) | 2004-08-10 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
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 |
WO2021041275A1 (en) | 2019-08-23 | 2021-03-04 | Shore Acquisition Holdings, Inc. | Two-dimensional microphone array with improved directivity |
US12028678B2 (en) | 2019-11-01 | 2024-07-02 | Shure Acquisition Holdings, Inc. | Proximity microphone |
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 |
WO2022165007A1 (en) | 2021-01-28 | 2022-08-04 | Shure Acquisition Holdings, Inc. | Hybrid audio beamforming system |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3502811A (en) * | 1967-12-11 | 1970-03-24 | Bell Telephone Labor Inc | Directional microphone with frequency independent beamwidth |
US4311874A (en) * | 1979-12-17 | 1982-01-19 | Bell Telephone Laboratories, Incorporated | Teleconference microphone arrays |
US4555598A (en) | 1983-09-21 | 1985-11-26 | At&T Bell Laboratories | Teleconferencing acoustic transducer |
US4589137A (en) * | 1985-01-03 | 1986-05-13 | The United States Of America As Represented By The Secretary Of The Navy | Electronic noise-reducing system |
US4965775A (en) * | 1989-05-19 | 1990-10-23 | At&T Bell Laboratories | Image derived directional microphones |
US20020009203A1 (en) * | 2000-03-31 | 2002-01-24 | Gamze Erten | Method and apparatus for voice signal extraction |
US20030147539A1 (en) * | 2002-01-11 | 2003-08-07 | Mh Acoustics, Llc, A Delaware Corporation | Audio system based on at least second-order eigenbeams |
US8204247B2 (en) * | 2003-01-10 | 2012-06-19 | Mh Acoustics, Llc | Position-independent microphone system |
DK176894B1 (da) | 2004-01-29 | 2010-03-08 | Dpa Microphones As | Mikrofonstruktur med retningsvirkning |
EP1862033B1 (en) * | 2005-03-22 | 2013-01-30 | Bloomline Acoustics B.V. | A transducer arrangement improving naturalness of sounds |
-
2008
- 2008-12-23 NO NO20085371A patent/NO332961B1/no not_active IP Right Cessation
-
2009
- 2009-12-21 WO PCT/NO2009/000442 patent/WO2010074583A1/en active Application Filing
- 2009-12-21 EP EP09835320.4A patent/EP2382798B1/en not_active Not-in-force
- 2009-12-21 CN CN200980152438.9A patent/CN102265641B/zh not_active Expired - Fee Related
- 2009-12-23 US US12/645,701 patent/US8472640B2/en active Active
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM1K | Lapsed by not paying the annual fees |