DK0580579T3 - Noise Control Device - Google Patents

Noise Control Device

Info

Publication number
DK0580579T3
DK0580579T3 DK91920600T DK91920600T DK0580579T3 DK 0580579 T3 DK0580579 T3 DK 0580579T3 DK 91920600 T DK91920600 T DK 91920600T DK 91920600 T DK91920600 T DK 91920600T DK 0580579 T3 DK0580579 T3 DK 0580579T3
Authority
DK
Denmark
Prior art keywords
control device
noise control
noise
control
Prior art date
Application number
DK91920600T
Other languages
Danish (da)
Inventor
Khosrow Eghtesadi
William John Joseph Hoge
John Joseph Hoge William
Original Assignee
Noise Cancellation Tech
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 Noise Cancellation Tech filed Critical Noise Cancellation Tech
Application granted granted Critical
Publication of DK0580579T3 publication Critical patent/DK0580579T3/en

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
    • H04R1/22—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)
  • Exhaust Silencers (AREA)
  • Circuit For Audible Band Transducer (AREA)
DK91920600T 1991-04-19 1991-04-19 Noise Control Device DK0580579T3 (en)

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
DK0580579T3 true DK0580579T3 (en) 1999-04-06

Family

ID=25676762

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91920600T DK0580579T3 (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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995030393A1 (en) * 1994-05-10 1995-11-16 Noise Cancellation Technologies, Inc. Active noise cancelling muffler
US6504938B1 (en) * 2000-10-06 2003-01-07 Logitech Europe S.A. Dual-chamber loudspeaker
US10158337B2 (en) 2004-08-10 2018-12-18 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
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
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
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
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
EP1994793B1 (en) * 2006-03-15 2014-10-08 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
US9906867B2 (en) 2015-11-16 2018-02-27 Bongiovi Acoustics Llc Surface acoustic transducer
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
EP0580579A1 (en) 1994-02-02
DE69129664D1 (en) 1998-07-30
HK1011163A1 (en) 1999-07-02
EP0580579A4 (en) 1994-06-15
WO1992019080A1 (en) 1992-10-29
ES2118093T3 (en) 1998-09-16
JPH06508445A (en) 1994-09-22
EP0580579B1 (en) 1998-06-24
DE69129664T2 (en) 1998-12-03
CA2108696A1 (en) 1992-10-20

Similar Documents

Publication Publication Date Title
DE69330544D1 (en) Noise control device
DE69327885D1 (en) Noise control device
DK0580579T3 (en) Noise Control Device
DE69111589D1 (en) Device control.
DE69210679D1 (en) Vibration control device
NO924651D0 (en) DEVICE
DE69232081D1 (en) Connection device
DE69225933D1 (en) Remote control device
DE59205956D1 (en) Electro-hydraulic control device
DE59205284D1 (en) Remote control device
DE69212899D1 (en) Remote control device
DK0612369T3 (en) Ventilation device
DE69230681D1 (en) Automatic sound control device
NO921189D0 (en) DOUBLE OSTOMI DEVICE
DE69322368D1 (en) Control device
DE69208253D1 (en) ACTUATING DEVICE
DE69213687D1 (en) Anti-lock control device
DE69315318D1 (en) Control device
DE69329302D1 (en) Noise control device
IT1267098B1 (en) HANGER-OBJECTS DEVICE
DE59206029D1 (en) Flow control device
DE69223332D1 (en) Motor control device
DE69230821D1 (en) Transmission control device
DE69225349D1 (en) Control unit
DE69227252D1 (en) NOISE MONITORING DEVICE