[go: up one dir, main page]

AU2001239786A1 - Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters - Google Patents

Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters

Info

Publication number
AU2001239786A1
AU2001239786A1 AU2001239786A AU3978601A AU2001239786A1 AU 2001239786 A1 AU2001239786 A1 AU 2001239786A1 AU 2001239786 A AU2001239786 A AU 2001239786A AU 3978601 A AU3978601 A AU 3978601A AU 2001239786 A1 AU2001239786 A1 AU 2001239786A1
Authority
AU
Australia
Prior art keywords
acoustically
multiple acoustic
acoustic filters
bandpass loudspeaker
asymmetric bandpass
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.)
Abandoned
Application number
AU2001239786A
Inventor
James J. Croft Iii.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Genasys Inc
Original Assignee
American Technology Corp
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 American Technology Corp filed Critical American Technology Corp
Publication of AU2001239786A1 publication Critical patent/AU2001239786A1/en
Abandoned legal-status Critical Current

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 
    • H04R1/28—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
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm 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 
    • H04R1/28—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
    • H04R1/2846—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2849—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
AU2001239786A 2000-02-17 2001-02-16 Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters Abandoned AU2001239786A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09505553 2000-02-17
US09/505,553 US6389146B1 (en) 2000-02-17 2000-02-17 Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters
PCT/US2001/005111 WO2001062043A1 (en) 2000-02-17 2001-02-16 Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters

Publications (1)

Publication Number Publication Date
AU2001239786A1 true AU2001239786A1 (en) 2001-08-27

Family

ID=24010774

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001239786A Abandoned AU2001239786A1 (en) 2000-02-17 2001-02-16 Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters

Country Status (7)

Country Link
US (1) US6389146B1 (en)
EP (1) EP1256259A4 (en)
JP (1) JP2003523673A (en)
CN (1) CN1408194A (en)
AU (1) AU2001239786A1 (en)
CA (1) CA2400423A1 (en)
WO (1) WO2001062043A1 (en)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802191A (en) * 1995-01-06 1998-09-01 Guenther; Godehard A. Loudspeakers, systems, and components thereof
US8588457B2 (en) * 1999-08-13 2013-11-19 Dr. G Licensing, Llc Low cost motor design for rare-earth-magnet loudspeakers
US6704426B2 (en) * 1999-03-02 2004-03-09 American Technology Corporation Loudspeaker system
US20070003076A1 (en) * 2000-02-17 2007-01-04 American Technology Corporation Bandpass woofer enclosure with multiple acoustic filters
US6611606B2 (en) * 2000-06-27 2003-08-26 Godehard A. Guenther Compact high performance speaker
US6912290B1 (en) * 2000-11-16 2005-06-28 Alpine Electronics, Inc. Speaker unit for low frequency reproduction
US7123725B2 (en) * 2000-12-29 2006-10-17 The United States Of America As Represented By The Secretary Of The Army High intensity infrasonic tunable resonant acoustic test cell
JP3795762B2 (en) * 2001-03-16 2006-07-12 エヌティティエレクトロニクス株式会社 Optical output control circuit
EP1345469A1 (en) * 2002-03-15 2003-09-17 Matsushita Electric Industrial Co., Ltd. Loudspeaker system
JP4064160B2 (en) * 2002-06-07 2008-03-19 富士通テン株式会社 Speaker device
US7123736B2 (en) * 2002-09-27 2006-10-17 Sony Ericsson Mobile Communications Ab Double-resonator micro-speaker assemblies and methods for tuning the same
ATE439011T1 (en) * 2002-10-10 2009-08-15 Nokia Corp SOUND GENERATING DEVICE, MOBILE ELECTRICAL DEVICE AND SYSTEM FOR GENERATING SOUND
US7162049B2 (en) * 2003-01-07 2007-01-09 Britannia Investment Corporation Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance
US7068806B2 (en) * 2003-01-14 2006-06-27 Walsh Casey P Condensed speaker system
AU2004204987B2 (en) * 2003-01-15 2008-03-06 Immersion Technology Property Limited Loudspeaker system with extended output and field cancellation
AU2003900164A0 (en) * 2003-01-15 2003-01-30 Techstream Research Pty Ltd Vehicle subwoofer with external field cancellation
US7087072B2 (en) * 2003-01-22 2006-08-08 Cardia, Inc. Articulated center post
US7260364B2 (en) 2003-05-30 2007-08-21 Sony Ericsson Mobile Communications Ab Reverse mounted micro-speaker assemblies and mobile terminals including the same
US7207413B2 (en) * 2003-06-02 2007-04-24 Tbi Audio Systems Llc Closed loop embedded audio transmission line technology for loudspeaker enclosures and systems
US7751579B2 (en) * 2003-06-13 2010-07-06 Etymotic Research, Inc. Acoustically transparent debris barrier for audio transducers
US20070092096A1 (en) * 2003-07-21 2007-04-26 Roman Litovsky Passive acoustical radiating
US7133533B2 (en) 2003-07-21 2006-11-07 Bose Corporation Passive acoustic radiating
CN1910951B (en) * 2004-04-13 2012-04-11 松下电器产业株式会社 speaker system
EP1790192A4 (en) * 2004-09-09 2010-06-02 Godehard A Guenther Loudspeaker and systems
US20060078136A1 (en) * 2004-10-07 2006-04-13 Stiles Enrique M Chamber-loaded augmented passive radiator
US7567680B2 (en) * 2004-10-29 2009-07-28 Sony Ericsson Mobile Communications, Ab Dual-diaphragm speaker assemblies with acoustic passageways and mobile terminals including the same
US7350618B2 (en) * 2005-04-01 2008-04-01 Creative Technology Ltd Multimedia speaker product
US7927351B2 (en) * 2006-06-19 2011-04-19 Cardia, Inc. Occlusion device with flexible wire connector
US7691115B2 (en) * 2006-06-19 2010-04-06 Cardia, Inc. Occlusion device with flexible fabric connector
US7972361B2 (en) * 2006-06-19 2011-07-05 Cardia, Inc. Occlusion device with flexible spring connector
US7749238B2 (en) * 2006-06-19 2010-07-06 Cardia, Inc. Occlusion device with flexible polymeric connector
DE102006039162A1 (en) * 2006-08-21 2008-02-28 Lear Corp., Southfield Protection method for speaker systems
US7881488B2 (en) * 2006-11-01 2011-02-01 Bose Corporation In-plane speaker
DE102006058009B3 (en) * 2006-12-08 2008-02-14 D & B Audiotechnik Ag Loudspeaker system for disseminating sound has front and rear loudspeakers in housings, rear housing being band-pass housing
US20080149417A1 (en) * 2006-12-21 2008-06-26 Apple Computer, Inc. Acoustic assembly for personal media device
TW200829053A (en) * 2006-12-21 2008-07-01 Global Target Entpr Inc Thin-film type sound source output apparatus
US8126138B2 (en) 2007-01-05 2012-02-28 Apple Inc. Integrated speaker assembly for personal media device
US7756553B2 (en) * 2007-01-05 2010-07-13 Apple Inc. Folded flex assembly for personal media device
US8306252B2 (en) * 2007-01-05 2012-11-06 Apple Inc. Integrated microphone assembly for personal media device
US20080167682A1 (en) * 2007-01-09 2008-07-10 Cardia, Inc. Bioabsorbable occlusion device
US7578367B2 (en) * 2007-03-07 2009-08-25 Foxconn Technology Co., Ltd. Speaker set and electronic product incorporating the same
US7578368B2 (en) * 2007-03-07 2009-08-25 Foxconn Technology Co., Ltd. Speaker set for electronic product
US8189840B2 (en) 2007-05-23 2012-05-29 Soundmatters International, Inc. Loudspeaker and electronic devices incorporating same
EP2077680B1 (en) 2007-12-14 2013-09-11 Harman International Industries Ltd. Loudspeaker system with double chamber enclosure
CN101494808A (en) * 2008-01-24 2009-07-29 深圳富泰宏精密工业有限公司 Loudspeaker assembly
US8284977B2 (en) * 2008-01-24 2012-10-09 Creative Technology Ltd Multi chamber ported stereo speaker
US8189841B2 (en) * 2008-03-27 2012-05-29 Bose Corporation Acoustic passive radiating
US8290546B2 (en) 2009-02-23 2012-10-16 Apple Inc. Audio jack with included microphone
JP5988874B2 (en) * 2009-10-23 2016-09-07 ブループリント アコースティックス ピーティーワイ リミテッドＢｌｕｅｐｒｉｎｔ Ａｃｏｕｓｔｉｃｓ Ｐｔｙ Ｌｔｄ Loudspeaker assembly and system
US9020177B2 (en) * 2011-09-30 2015-04-28 Apple Inc. Method and apparatus for construction of an acoustic module backvolume
CN103974855A (en) * 2011-11-22 2014-08-06 邦及奥卢夫森公司 A vehicle, a boat or an airplane comprising a control system for light sources, comfort and multimedia equipment
CN102547539A (en) * 2011-12-31 2012-07-04 李世煌 Coaxial diaphragm loudspeaker unit and mirror coaxial diaphragm type sound box
JP5955079B2 (en) 2012-04-25 2016-07-20 アルパイン株式会社 Speaker device
DE112012006347T5 (en) 2012-05-08 2015-01-29 Harman International (China) Holdings Co., Ltd. New speaker
US8995696B2 (en) 2012-08-31 2015-03-31 Bose Corporation Speaker
US9066172B2 (en) 2012-09-28 2015-06-23 Apple Inc. Acoustic waveguide and computing devices using same
US9380369B2 (en) 2013-02-14 2016-06-28 Apple Inc. Microphone seal
CN103310782B (en) * 2013-05-21 2015-06-17 东南大学 Strong standing wave generation device for symmetric Helmholtz sound sources
TWI531248B (en) * 2013-08-23 2016-04-21 宏碁股份有限公司 Speaker structure
US9271098B2 (en) * 2013-10-07 2016-02-23 Incipio Technologies, Inc. Audio speaker with externally reinforced passive radiator attachment
US10124772B1 (en) 2013-10-18 2018-11-13 Todd James Hartman Systems, methods, and apparatus for debris removal
CN103826183B (en) * 2014-02-24 2019-07-26 东莞凤合凰电声科技有限公司 Band-pass bass sound box and adjusting method thereof
US20160037253A1 (en) * 2014-07-30 2016-02-04 Goal Zero Llc Portable speaker system
SE538743C2 (en) * 2015-02-13 2016-11-08 Keyofd Ab Loudspeaker enclosure with a sealed acoustic suspension chamber
US10063961B2 (en) * 2015-09-08 2018-08-28 Charles M Paris Chambered enclosure for use with audio loudspeakers
CN105251297B (en) * 2015-09-28 2017-06-09 东南大学 The device and the method for the device of a kind of annular sound field migration suspended particulate
KR101745154B1 (en) * 2015-10-19 2017-06-08 현대자동차주식회사 Enclosure Expansion type Virtual Engine Sound System and Vehicle thereby
US9913024B2 (en) * 2015-12-28 2018-03-06 Bose Corporation Acoustic resistive elements for ported transducer enclosure
TWI602441B (en) * 2016-07-11 2017-10-11 宏碁股份有限公司 Speaker with harmonic sound and electronic device using the same
US10397681B2 (en) * 2016-12-11 2019-08-27 Base Corporation Acoustic transducer
EP3556111B1 (en) * 2016-12-14 2021-10-06 Dolby Laboratories Licensing Corporation Multi-driver loudspeaker with cross-coupled dual wave-columns
US10542347B2 (en) * 2017-06-03 2020-01-21 Don Petracek Speaker cabinet to effectively amplify the full and natural sound of an acoustic guitar
US10441258B2 (en) 2017-06-16 2019-10-15 Cardia, Inc. Uncoupled LAA device
JP7069699B2 (en) * 2017-12-25 2022-05-18 ヤマハ株式会社 Speaker structure
IT201800001720A1 (en) * 2018-01-24 2019-07-24 Ask Ind Spa HEADREST FOR VEHICLE SEAT WITH SPEAKER.
CN110324755A (en) * 2018-03-29 2019-10-11 深圳市国呐科技有限公司 Double-tone chamber current limliting compression loudspeaker box structure and speaker
CN109274348A (en) * 2018-08-06 2019-01-25 东南大学 Asymmetric coupled acoustic waveguide filter
GB2577569B (en) * 2018-09-29 2022-06-15 Barefaced Ltd Loudspeaker enclosure with slot/horn apparatus for improved polar response and low frequency output
CN109246536B (en) * 2018-09-30 2024-02-09 嘉善睿磬电声技术有限公司 Open type labyrinth sound box
JP7247549B2 (en) * 2018-11-29 2023-03-29 ヤマハ株式会社 Electroacoustic transducer
KR102581285B1 (en) * 2019-01-03 2023-09-22 삼성전자주식회사 Electronic apparatus
JP7034979B2 (en) * 2019-04-02 2022-03-14 フォスター電機株式会社 Speaker device
WO2020250497A1 (en) * 2019-06-11 2020-12-17 株式会社村田製作所 Piezoelectric device
US20210105556A1 (en) * 2019-10-08 2021-04-08 Soniphi Llc Systems & Methods For Expanding Sensation Using Isobaric Chambers
KR102842412B1 (en) * 2020-10-20 2025-08-06 현대자동차주식회사 Vehicle and method for controlling thereof
CN112954549B (en) * 2021-02-25 2022-09-09 歌尔科技有限公司 Sound effect control method and device, sound box equipment and storage medium
US12225146B2 (en) 2021-03-02 2025-02-11 Apple Inc. Acoustic module for handheld electronic device
CN121098284A (en) * 2025-11-10 2025-12-09 西安电子科技大学 Tunable band-pass filter and tuning method and manufacturing method thereof

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1969704A (en) 1932-06-03 1934-08-07 D Alton Andre Acoustic device
US2689016A (en) * 1953-04-14 1954-09-14 Henry C Lang Sound reproducing system
DE3317518A1 (en) 1983-05-13 1984-11-15 Standard Elektrik Lorenz Ag SPEAKER BOX WITH INTEGRATED ACOUSTIC BAND PASS FILTER
US4549631A (en) * 1983-10-24 1985-10-29 Bose Corporation Multiple porting loudspeaker systems
US4875546A (en) * 1988-06-02 1989-10-24 Teledyne Industries, Inc. Loudspeaker with acoustic band-pass filter
US4924963A (en) * 1989-01-05 1990-05-15 Polk Investment Corp. Compact and efficient sub-woofer system and method for installation in structural partitions
JPH02260910A (en) 1989-03-31 1990-10-23 Meidensha Corp Crystal resonator piece
US5025885A (en) * 1989-07-14 1991-06-25 Bose Corporation Multiple chamber loudspeaker system
US5092424A (en) * 1990-12-03 1992-03-03 Bose Corporation Electroacoustical transducing with at least three cascaded subchambers
US5714721A (en) * 1990-12-03 1998-02-03 Bose Corporation Porting
DE69323258T2 (en) * 1992-09-23 1999-08-05 Koninklijke Philips Electronics N.V., Eindhoven Speaker system with several tubes
US5374124A (en) * 1993-04-06 1994-12-20 Cass Audio, Inc. Multi-compound isobarik loudspeaker system
US6223853B1 (en) * 1994-12-23 2001-05-01 Graeme John Huon Loudspeaker system incorporating acoustic waveguide filters and method of construction
US5471019A (en) * 1994-12-29 1995-11-28 Sounds Resources, Inc. Multiple chamber loudspeaker system
US5659157A (en) * 1995-03-21 1997-08-19 Shulte; Daniel W. 7th order acoustic speaker
US5749433A (en) * 1996-02-13 1998-05-12 Jackson; Michael Massline loudspeaker enclosure
US5731553A (en) 1997-01-29 1998-03-24 Excel Sound & Art Speaker system
US6169811B1 (en) * 1999-03-02 2001-01-02 American Technology Corporation Bandpass loudspeaker system

Also Published As

Publication number Publication date
CA2400423A1 (en) 2001-08-23
EP1256259A1 (en) 2002-11-13
US6389146B1 (en) 2002-05-14
JP2003523673A (en) 2003-08-05
CN1408194A (en) 2003-04-02
WO2001062043A1 (en) 2001-08-23
EP1256259A4 (en) 2007-09-19

Similar Documents

Publication Publication Date Title
AU2001239786A1 (en) Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters
AU2001236550A1 (en) Open back acoustic speaker module
AU2001291272A1 (en) Micromechanical resonator and filter using the same
AU2002252676A1 (en) Hearing aid with internal acoustic middle ear transducer
EP1126605A3 (en) Surface acoustic wave filter device
AU2003227183A1 (en) Honeycomb filter
AU2003227185A1 (en) Honeycomb filter
GB2411302B (en) Acoustic filters and resonators
AU2003272919A1 (en) Suspension and electro-acoustic transducer using the suspension
AU2001272509A1 (en) Filter
AU2002227087A1 (en) Acoustic loudspeaker
AU2001246558A1 (en) Microphone structure
AU3210701A (en) Dual flow filter
AU2003298326A1 (en) Bandpass filter with pseudo-elliptic response
AU2003289012A1 (en) Ceramic honeycomb filter
AU2001256884A1 (en) Acousto-optical variable filter
EP1233512A3 (en) Longitudinal coupled multiple mode surface acoustic wave filter
AU1254501A (en) Loudspeaker with progressively damped acoustical chamber
AU2003209928A1 (en) Bandpass filter having parallel signal paths
AU2002227933A1 (en) Am receiver with audio filtering means
AU2002217214A1 (en) Surface acoustic waves filters with optimised symmetry
AU2001240958A1 (en) Filter medium
AU2001287938A1 (en) Adaptive filters
AUPR204700A0 (en) Acoustic transducer
AU2001292471A1 (en) Air-cleaning filter