ES2118093T3 - NOISE CONTROL DEVICE. - Google Patents
NOISE CONTROL DEVICE.Info
- Publication number
- ES2118093T3 ES2118093T3 ES91920600T ES91920600T ES2118093T3 ES 2118093 T3 ES2118093 T3 ES 2118093T3 ES 91920600 T ES91920600 T ES 91920600T ES 91920600 T ES91920600 T ES 91920600T ES 2118093 T3 ES2118093 T3 ES 2118093T3
- Authority
- ES
- Spain
- Prior art keywords
- wave
- control device
- noise control
- signals
- phase
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 abstract 1
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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
- H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
-
- 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Circuit For Audible Band Transducer (AREA)
- Exhaust Silencers (AREA)
Abstract
LA ONDA DE SONIDO RADIADA DE LA SUPERFICIE (UF) DELANTERA DE UN DIAFRAGMA DE DISPOSITIVO ALTAVOZ ES DE POLARIDAD OPUESTA CON RESPECTO A LA RADIADA DE LA SUPERFICIE (UB) POSTERIOR. SI LAS DOS SEÑALES SE COMBINAN DIRECTAMENTE, TENDERAN A CANCELARSE UNA A LA OTRA. UNA RED (5) DE INVERSION DE FASE ACUSTICA SE USA PARA ASEGURAR QUE LA ONDA DE RETROCESO ESTE EN FASE CON LA ONDA FRONTAL, Y LAS SEÑALES COMBINADAS SE USAN PARA CONDUCIR LA ENTRADA DE UNA LINEA DE TRANSMISION DE UN ALTAVOZ.THE RADIATED SOUND WAVE OF THE FRONT SURFACE (UF) OF A SPEAKER DEVICE DIAPHRAGM IS OF OPPOSITE POLARITY WITH RESPECT TO THE REAR SURFACE RADIATE (UB). IF THE TWO SIGNALS ARE COMBINED DIRECTLY, THEY WILL TEND TO CANCEL THE OTHER. AN ACOUSTIC PHASE INVESTMENT NETWORK (5) IS USED TO ENSURE THAT THE BACKWARD WAVE IS IN PHASE WITH THE FRONT WAVE, AND THE COMBINED SIGNALS ARE USED TO CONDUCT THE ENTRY OF A SPEAKER TRANSMISSION LINE.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002108696A CA2108696A1 (en) | 1991-04-19 | 1991-04-19 | Improvements in and relating to transmission line loudspeakers |
PCT/US1991/002731 WO1992019080A1 (en) | 1991-04-19 | 1991-04-19 | Improvements in and relating to transmission line loudspeakers |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2118093T3 true ES2118093T3 (en) | 1998-09-16 |
Family
ID=25676762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91920600T Expired - Lifetime ES2118093T3 (en) | 1991-04-19 | 1991-04-19 | NOISE CONTROL DEVICE. |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0580579B1 (en) |
JP (1) | JPH06508445A (en) |
CA (1) | CA2108696A1 (en) |
DE (1) | DE69129664T2 (en) |
DK (1) | DK0580579T3 (en) |
ES (1) | ES2118093T3 (en) |
HK (1) | HK1011163A1 (en) |
WO (1) | WO1992019080A1 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2188534C (en) * | 1994-05-10 | 2000-05-02 | Scott K. Miller | Active noise cancelling muffler |
US6504938B1 (en) * | 2000-10-06 | 2003-01-07 | Logitech Europe S.A. | Dual-chamber loudspeaker |
US8284955B2 (en) | 2006-02-07 | 2012-10-09 | 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 |
US10158337B2 (en) | 2004-08-10 | 2018-12-18 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11431312B2 (en) | 2004-08-10 | 2022-08-30 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11202161B2 (en) | 2006-02-07 | 2021-12-14 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US10701505B2 (en) | 2006-02-07 | 2020-06-30 | Bongiovi Acoustics Llc. | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US10069471B2 (en) | 2006-02-07 | 2018-09-04 | 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 |
PL1994793T3 (en) * | 2006-03-15 | 2015-04-30 | Thomas J Danley | Sound reproduction with improved low frequency characteristics |
DE102011084567C5 (en) * | 2011-10-14 | 2019-08-14 | Eberspächer Exhaust Technology GmbH & Co. KG | Active muffler |
US9264004B2 (en) | 2013-06-12 | 2016-02-16 | Bongiovi Acoustics Llc | System and method for narrow bandwidth digital signal processing |
US9883318B2 (en) | 2013-06-12 | 2018-01-30 | Bongiovi Acoustics Llc | System and method for stereo field enhancement in two-channel audio systems |
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 |
US9479861B2 (en) * | 2014-06-26 | 2016-10-25 | Anthony Allen BISSET | Compact wideband bass and midrange horn-loaded speaker system |
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 |
US9621994B1 (en) | 2015-11-16 | 2017-04-11 | Bongiovi Acoustics Llc | Surface acoustic transducer |
JP2018537910A (en) | 2015-11-16 | 2018-12-20 | ボンジョビ アコースティックス リミテッド ライアビリティー カンパニー | Surface acoustic transducer |
CA3096877A1 (en) | 2018-04-11 | 2019-10-17 | Bongiovi Acoustics Llc | Audio enhanced hearing protection system |
WO2020028833A1 (en) | 2018-08-02 | 2020-02-06 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
CN113504663B (en) * | 2021-07-23 | 2023-04-25 | 歌尔科技有限公司 | Sound production module, sound production module silencing method and intelligent glasses |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5031801A (en) * | 1973-07-20 | 1975-03-28 | ||
JPS5789393A (en) * | 1980-11-17 | 1982-06-03 | Bose Corp | Controller for low end response for loudspeaker system |
US4473906A (en) * | 1980-12-05 | 1984-09-25 | Lord Corporation | Active acoustic attenuator |
US4549631A (en) * | 1983-10-24 | 1985-10-29 | Bose Corporation | Multiple porting loudspeaker systems |
US4616731A (en) * | 1984-03-02 | 1986-10-14 | Robinson James R | Speaker system |
US4665549A (en) * | 1985-12-18 | 1987-05-12 | Nelson Industries Inc. | Hybrid active silencer |
US4875546A (en) * | 1988-06-02 | 1989-10-24 | Teledyne Industries, Inc. | Loudspeaker with acoustic band-pass filter |
JPH0787628B2 (en) * | 1989-02-22 | 1995-09-20 | 株式会社ケンウッド | Speaker system for bass reproduction |
US5025885A (en) * | 1989-07-14 | 1991-06-25 | Bose Corporation | Multiple chamber loudspeaker system |
JP4862491B2 (en) * | 2005-05-25 | 2012-01-25 | 東レ株式会社 | Flocking piles and flocking products |
-
1991
- 1991-04-19 DE DE69129664T patent/DE69129664T2/en not_active Expired - Fee Related
- 1991-04-19 WO PCT/US1991/002731 patent/WO1992019080A1/en active IP Right Grant
- 1991-04-19 CA CA002108696A patent/CA2108696A1/en not_active Abandoned
- 1991-04-19 DK DK91920600T patent/DK0580579T3/en active
- 1991-04-19 ES ES91920600T patent/ES2118093T3/en not_active Expired - Lifetime
- 1991-04-19 JP JP3518527A patent/JPH06508445A/en active Pending
- 1991-04-19 EP EP91920600A patent/EP0580579B1/en not_active Expired - Lifetime
-
1998
- 1998-11-17 HK HK98112067A patent/HK1011163A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0580579A1 (en) | 1994-02-02 |
JPH06508445A (en) | 1994-09-22 |
DE69129664D1 (en) | 1998-07-30 |
HK1011163A1 (en) | 1999-07-02 |
WO1992019080A1 (en) | 1992-10-29 |
DK0580579T3 (en) | 1999-04-06 |
CA2108696A1 (en) | 1992-10-20 |
EP0580579B1 (en) | 1998-06-24 |
EP0580579A4 (en) | 1994-06-15 |
DE69129664T2 (en) | 1998-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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