AU2001296694A1 - Dual-chamber loudspeaker - Google Patents

Dual-chamber loudspeaker

Info

Publication number
AU2001296694A1
AU2001296694A1 AU2001296694A AU9669401A AU2001296694A1 AU 2001296694 A1 AU2001296694 A1 AU 2001296694A1 AU 2001296694 A AU2001296694 A AU 2001296694A AU 9669401 A AU9669401 A AU 9669401A AU 2001296694 A1 AU2001296694 A1 AU 2001296694A1
Authority
AU
Australia
Prior art keywords
acoustical
vent
chamber
pneumatic
chambers
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
AU2001296694A
Inventor
Jeffrey S. Anderson
Jason N. Linse
Raymond K. Weikel
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.)
Labtec Corp
Original Assignee
Labtec 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 Labtec Corp filed Critical Labtec Corp
Publication of AU2001296694A1 publication Critical patent/AU2001296694A1/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
    • H04R1/2846—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
    • 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

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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

An economical and compact dual-chamber loudspeaker includes a small driver received within a partition extending between, and in acoustical and pneumatic communication with, both a front and a back chamber, each of which has a relatively small volume. An elongated vent is in acoustical and pneumatic communication between the front and back chamber at a substantially planar opening in the partition. The drone cone is in acoustical and pneumatic communication between the front chamber and the outside environment at a substantially planar opening in the housing. The two openings are spaced apart and generally parallel to each other. In a preferred embodiment, the volume of the chambers is minimized by securing an elongated concentric vent around the vent extending between the front and back chambers. In an alternative preferred embodiment, there are at least two elongated vents in acoustical and pneumatic communication with the front and back chambers, and each vent is spaced equal distance from the driver and from each other such that they distribute the pneumatic loads between the front and back chambers evenly, thereby preventing pneumatic forces emanating from the vents from applying asymmetric force to the drone cone.
AU2001296694A 2000-10-06 2001-10-05 Dual-chamber loudspeaker Abandoned AU2001296694A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09684024 2000-10-06
US09/684,024 US6504938B1 (en) 2000-10-06 2000-10-06 Dual-chamber loudspeaker
PCT/US2001/031380 WO2002030155A1 (en) 2000-10-06 2001-10-05 Dual-chamber loudspeaker

Publications (1)

Publication Number Publication Date
AU2001296694A1 true AU2001296694A1 (en) 2002-04-15

Family

ID=24746408

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001296694A Abandoned AU2001296694A1 (en) 2000-10-06 2001-10-05 Dual-chamber loudspeaker

Country Status (6)

Country Link
US (1) US6504938B1 (en)
EP (1) EP1323332B1 (en)
AT (1) ATE397839T1 (en)
AU (1) AU2001296694A1 (en)
DE (1) DE60134330D1 (en)
WO (1) WO2002030155A1 (en)

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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
JP4086622B2 (en) * 2002-03-11 2008-05-14 ローランド株式会社 Speaker device
DE60233270D1 (en) * 2002-10-10 2009-09-17 Nokia Corp SOUND PRODUCTION DEVICE, MOBILE ELECTRICAL EQUIPMENT AND SYSTEM FOR GENERATING SOUND
US6968067B2 (en) * 2003-03-24 2005-11-22 Patrick Lopez Portable entertainment system
US7207413B2 (en) * 2003-06-02 2007-04-24 Tbi Audio Systems Llc Closed loop embedded audio transmission line technology for loudspeaker enclosures and systems
US7450733B2 (en) * 2004-01-23 2008-11-11 Creative Technology Ltd. Speaker with externally mounted acoustic extension
US7350618B2 (en) * 2005-04-01 2008-04-01 Creative Technology Ltd Multimedia speaker product
US7624839B1 (en) * 2006-05-12 2009-12-01 Graber Curtis E Enclosure for symbiotic active/passive operation of an acoustic driver
TW200829053A (en) * 2006-12-21 2008-07-01 Global Target Entpr Inc Thin-film type sound source output apparatus
US20080169150A1 (en) * 2007-01-12 2008-07-17 Tsung-Cheng Kuo Reflection-type sound box
US8561756B2 (en) 2012-02-17 2013-10-22 Bose Corporation Acoustic ports aligned to create free convective airflow
US8798308B2 (en) * 2012-02-21 2014-08-05 Bose Corporation Convective airflow using a passive radiator
US11076220B2 (en) * 2012-05-31 2021-07-27 VUE Audiotechnik LLC Loudspeaker system
CN102843624B (en) 2012-07-05 2016-08-24 李世煌 Loudspeaker box structure with loading hole
US9326054B2 (en) * 2012-08-13 2016-04-26 Nokia Corporation Sound transducer acoustic back cavity system
US9271098B2 (en) * 2013-10-07 2016-02-23 Incipio Technologies, Inc. Audio speaker with externally reinforced passive radiator attachment
USD752503S1 (en) * 2014-10-13 2016-03-29 Gulfstream Aerospace Corporation Door handle for an aircraft
DE102015120769A1 (en) * 2015-11-30 2017-06-01 Mahler Engineering Speaker System
US10368159B2 (en) 2016-12-28 2019-07-30 Mitek Corp., Inc. Water resistant loudspeaker
USD993325S1 (en) * 2020-11-25 2023-07-25 Skoogmusic Ltd Electrical sound producing device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1869178A (en) * 1930-08-15 1932-07-26 Bell Telephone Labor Inc Sound translating device
US1969704A (en) * 1932-06-03 1934-08-07 D Alton Andre Acoustic device
US4875546A (en) * 1988-06-02 1989-10-24 Teledyne Industries, Inc. Loudspeaker with acoustic band-pass filter
JP2568675Y2 (en) 1988-07-22 1998-04-15 ヤマハ株式会社 Sound equipment
US5025885A (en) * 1989-07-14 1991-06-25 Bose Corporation Multiple chamber loudspeaker system
US5714721A (en) * 1990-12-03 1998-02-03 Bose Corporation Porting
EP0580579B1 (en) * 1991-04-19 1998-06-24 Noise Cancellation Technologies, Inc. Noise control apparatus
US5629502A (en) 1994-03-02 1997-05-13 Sony Corporation Speaker apparatus
US5937074A (en) * 1996-08-12 1999-08-10 Carver; Robert W. High back emf, high pressure subwoofer having small volume cabinet, low frequency cutoff and pressure resistant surround
AU8571298A (en) * 1997-07-18 1999-02-10 Mackie Designs Inc. Passive radiator cooled electronics/heat sink housing for a powered speaker
US6144751A (en) * 1998-02-24 2000-11-07 Velandia; Erich M. Concentrically aligned speaker enclosure
US6169811B1 (en) * 1999-03-02 2001-01-02 American Technology Corporation Bandpass loudspeaker system

Also Published As

Publication number Publication date
EP1323332A1 (en) 2003-07-02
WO2002030155A1 (en) 2002-04-11
ATE397839T1 (en) 2008-06-15
EP1323332A4 (en) 2006-01-25
US6504938B1 (en) 2003-01-07
EP1323332B1 (en) 2008-06-04
DE60134330D1 (en) 2008-07-17

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