HK1011163A1 - Noise controller apparatus - Google Patents

Noise controller apparatus

Info

Publication number
HK1011163A1
HK1011163A1 HK98112067A HK98112067A HK1011163A1 HK 1011163 A1 HK1011163 A1 HK 1011163A1 HK 98112067 A HK98112067 A HK 98112067A HK 98112067 A HK98112067 A HK 98112067A HK 1011163 A1 HK1011163 A1 HK 1011163A1
Authority
HK
Hong Kong
Prior art keywords
controller apparatus
noise controller
noise
controller
Prior art date
Application number
HK98112067A
Inventor
Khosrow Eghtesadi
William John Joseph Hoge
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
Publication of HK1011163A1 publication Critical patent/HK1011163A1/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
HK98112067A 1991-04-19 1998-11-17 Noise controller apparatus HK1011163A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/US1991/002731 WO1992019080A1 (en) 1991-04-19 1991-04-19 Improvements in and relating to transmission line loudspeakers
CA002108696A CA2108696A1 (en) 1991-04-19 1991-04-19 Improvements in and relating to transmission line loudspeakers

Publications (1)

Publication Number Publication Date
HK1011163A1 true HK1011163A1 (en) 1999-07-02

Family

ID=25676762

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98112067A HK1011163A1 (en) 1991-04-19 1998-11-17 Noise controller apparatus

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
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
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
US10158337B2 (en) 2004-08-10 2018-12-18 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
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
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
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US9615813B2 (en) 2014-04-16 2017-04-11 Bongiovi Acoustics Llc. Device for wide-band auscultation
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
WO2017087495A1 (en) 2015-11-16 2017-05-26 Bongiovi Acoustics Llc Surface acoustic transducer
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
AU2019252524A1 (en) 2018-04-11 2020-11-05 Bongiovi Acoustics Llc Audio enhanced hearing protection system
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
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
EP0580579A4 (en) 1994-06-15
DE69129664D1 (en) 1998-07-30
DK0580579T3 (en) 1999-04-06
EP0580579B1 (en) 1998-06-24
CA2108696A1 (en) 1992-10-20
EP0580579A1 (en) 1994-02-02
DE69129664T2 (en) 1998-12-03
WO1992019080A1 (en) 1992-10-29
ES2118093T3 (en) 1998-09-16
JPH06508445A (en) 1994-09-22

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)