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CA2230438A1 - Loudspeakers with panel-form acoustic radiating elements - Google Patents

Loudspeakers with panel-form acoustic radiating elements Download PDF

Info

Publication number
CA2230438A1
CA2230438A1 CA002230438A CA2230438A CA2230438A1 CA 2230438 A1 CA2230438 A1 CA 2230438A1 CA 002230438 A CA002230438 A CA 002230438A CA 2230438 A CA2230438 A CA 2230438A CA 2230438 A1 CA2230438 A1 CA 2230438A1
Authority
CA
Canada
Prior art keywords
enclosure
radiator
panel
acoustic
loudspeaker
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
CA002230438A
Other languages
English (en)
French (fr)
Inventor
Henry Azima
Martin Colloms
Neil Harris
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.)
NVF Tech Ltd
Original Assignee
Individual
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
Priority claimed from GBGB9517918.0A external-priority patent/GB9517918D0/en
Priority claimed from GBGB9522281.6A external-priority patent/GB9522281D0/en
Priority claimed from GBGB9606836.6A external-priority patent/GB9606836D0/en
Application filed by Individual filed Critical Individual
Publication of CA2230438A1 publication Critical patent/CA2230438A1/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • 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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • 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
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Otolaryngology (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
CA002230438A 1995-09-02 1996-09-02 Loudspeakers with panel-form acoustic radiating elements Abandoned CA2230438A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GBGB9517918.0A GB9517918D0 (en) 1995-09-02 1995-09-02 Acoustic device
GB9517918.0 1995-09-02
GB9522281.6 1995-10-31
GBGB9522281.6A GB9522281D0 (en) 1995-10-31 1995-10-31 Acoustic device
GB9606836.6 1996-03-30
GBGB9606836.6A GB9606836D0 (en) 1996-03-30 1996-03-30 Acoustic device
PCT/GB1996/002166 WO1997009849A1 (en) 1995-09-02 1996-09-02 Loudspeakers with panel-form acoustic radiating elements

Publications (1)

Publication Number Publication Date
CA2230438A1 true CA2230438A1 (en) 1997-03-13

Family

ID=34865252

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002230438A Abandoned CA2230438A1 (en) 1995-09-02 1996-09-02 Loudspeakers with panel-form acoustic radiating elements

Country Status (13)

Country Link
EP (1) EP0847668B1 (de)
JP (1) JPH11512261A (de)
CN (1) CN1195457A (de)
AT (1) ATE179043T1 (de)
AU (1) AU704299B2 (de)
CA (1) CA2230438A1 (de)
DE (1) DE69602100T2 (de)
DK (1) DK0847668T3 (de)
EA (1) EA002097B1 (de)
ES (1) ES2132954T3 (de)
HK (1) HK1008648A1 (de)
RO (1) RO119048B1 (de)
WO (1) WO1997009849A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL140304A0 (en) 1998-06-22 2002-02-10 Slab Technology Ltd Loudspeakers
DE19955867A1 (de) * 1999-11-22 2001-06-21 Harman Audio Electronic Sys Flachlautsprecheranordnung für Tieftonwiedergabe
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
ITMI20041972A1 (it) 2004-10-18 2005-01-18 Daniele Ramenzoni Dispositivo elettroacustico, con risonatore a cavita', che fornisce caratteristiche tridimensionali estreme per controllare, concentrare e diffondere infrasuoni, suoni e ultrasuoni.
US10069471B2 (en) 2006-02-07 2018-09-04 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
US9615189B2 (en) 2014-08-08 2017-04-04 Bongiovi Acoustics Llc Artificial ear apparatus and associated methods for generating a head related audio transfer function
US10848867B2 (en) 2006-02-07 2020-11-24 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
FR2968881B1 (fr) * 2010-12-10 2013-01-04 Zedel Transducteur acoustique bi-mode
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
GB2517721A (en) * 2013-08-29 2015-03-04 Nokia Corp Speaker apparatus
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
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
WO2019200119A1 (en) 2018-04-11 2019-10-17 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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164221A (en) * 1961-06-06 1965-01-05 Rosen Alfred H Low frequency loudspeaker system
US3247925A (en) * 1962-03-08 1966-04-26 Lord Corp Loudspeaker
US4379951A (en) * 1977-04-20 1983-04-12 Gabr Saad Z M Electro-acoustic transducer means
EP0340435A3 (de) * 1988-04-01 1991-04-24 Yamaha Corporation Akustischer Apparat
EP0541646B1 (de) * 1990-08-04 1995-01-11 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Paneelförmiger lautsprecher
WO1993007729A1 (en) * 1991-10-02 1993-04-15 Noise Cancellation Technologies, Inc. Vacuum speaker
EP0548836B1 (de) * 1991-12-20 1997-06-11 Matsushita Electric Industrial Co., Ltd. Lautsprecherapparat zur Basswiedergabe

Also Published As

Publication number Publication date
DE69602100D1 (de) 1999-05-20
ATE179043T1 (de) 1999-04-15
EA199800250A1 (ru) 1998-10-29
JPH11512261A (ja) 1999-10-19
EP0847668A1 (de) 1998-06-17
CN1195457A (zh) 1998-10-07
WO1997009849A1 (en) 1997-03-13
HK1008648A1 (en) 1999-05-14
RO119048B1 (ro) 2004-02-27
AU6882296A (en) 1997-03-27
EA002097B1 (ru) 2001-12-24
EP0847668B1 (de) 1999-04-14
ES2132954T3 (es) 1999-08-16
DK0847668T3 (da) 1999-10-25
DE69602100T2 (de) 1999-09-16
AU704299B2 (en) 1999-04-22

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued