WO1999012387A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

Info

Publication number
WO1999012387A1
WO1999012387A1 PCT/GB1998/002532 GB9802532W WO9912387A1 WO 1999012387 A1 WO1999012387 A1 WO 1999012387A1 GB 9802532 W GB9802532 W GB 9802532W WO 9912387 A1 WO9912387 A1 WO 9912387A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly according
radiator
acoustic
assembly
links
Prior art date
Application number
PCT/GB1998/002532
Other languages
English (en)
Inventor
Henry Azima
Graham Bank
Neil Owen
Kieron Dunk
Original Assignee
New Transducers Limited
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 GBGB9718730.6A external-priority patent/GB9718730D0/en
Priority claimed from GBGB9727193.6A external-priority patent/GB9727193D0/en
Application filed by New Transducers Limited filed Critical New Transducers Limited
Priority to BR9812163-4A priority Critical patent/BR9812163A/pt
Priority to AU88702/98A priority patent/AU745486B2/en
Priority to JP2000509253A priority patent/JP2001515333A/ja
Priority to IL13483498A priority patent/IL134834A0/xx
Priority to EP98940362A priority patent/EP1010351A1/fr
Priority to KR1020007002300A priority patent/KR20010023648A/ko
Priority to CA002297041A priority patent/CA2297041A1/fr
Publication of WO1999012387A1 publication Critical patent/WO1999012387A1/fr

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/066—Loudspeakers using the principle of inertia

Definitions

  • the invention relates to loudspeakers of the kind in which an acoustic output is produced by launching bending waves into an acoustic radiator comprising a resonant panel.
  • loudspeakers are described in International patent application O97/09842 of New Transducers Limited.
  • the present invention provides an assembly comprising a resonant panel acoustic radiator, a body suspending the acoustic radiator, at least one vibration exciter on the radiator to launch bending waves into the radiator to cause it to resonate to produce an acoustic output, and means on the body suspending the radiator for free movement relative thereto.
  • the body may take the place of a chassis in a conventional loudspeaker drive unit, although in the present invention the body is usually not required to be of the same degree of weight and rigidity as is required with a conventional pistonic drive unit.
  • the body (hereinafter chassis) may be a lightweight frame-like structure.
  • the chassis may be such as to enclose the radiator panel.
  • the chassis may be a tray-like member having a surrounding peripheral lip.
  • the chassis may be of light weight and may, for example, be a plastics moulding.
  • the chassis may be an open frame, or may be perforate.
  • Means may be provided for freely suspending the edges of the acoustic radiator on the chassis.
  • the suspension may be such as to allow free movement of the acoustic radiator in directions normal to the plane of the radiator (it will usually be a flat plate) while preventing movement of the radiator in its plane.
  • the suspension may comprise arms or links hinged at one end to the chassis and at the other end to the radiator for swinging movement about respective parallel axes at opposite ends of the arms or links. Such arms or links may be provided on all four sides of a generally rectangular radiator.
  • the suspension arms or links on opposite sides of the radiator may be attached near to diagonally opposed corners of the radiator.
  • the connections of the arms or links to the radiator may be by means of resilient foam pads, e.g. of rubber or a rubber-like material, which are fixed to the radiator, e.g. by means of an adhesive, near to its corners and which receive hinge pins provided on the ends of the arms or links.
  • the chassis may be formed with a conduit in which services such as electrical input leads to the vibration exciter (s) may be located.
  • the conduit may be in the form of a channel extending round the periphery of the chassis.
  • the chassis may be formed with means whereby it can be supported in position to form a loudspeaker or such that more than one of the assemblies can be linked together to form a larger loudspeaker unit .
  • the corners of the chassis may be formed with bores for receiving linking members comprising respective pegs which are frictionally received in the bores to hold two or more of the assemblies together edge-to-edge to form a large loudspeaker panel.
  • a linking member comprising two pegs may be used to join two adjacent modular assemblies, and a linking member comprising four pegs may join the corners of four adjacent modular assemblies.
  • the linking member may establish an electrical link between adjacent modular assemblies as well as providing the mechanical linkage.
  • the pegs of each linking member may comprise outer and inner connectors and means electrically connecting the outer and inner connectors of one peg to the outer and inner connectors of the other pegs of the linking member.
  • the inner connector of one peg may be electrically connected to the outer connector of another peg of the linking member.
  • the inner conductors of the pegs of the linking member may be electrically connected and the outer conductors of the pegs may be electrically connected.
  • the electrical signal may be carried between the modular assemblies by making two surfaces of the chassis or frame moulding electrically conductive. This may be achieved by embedding or otherwise applying electrical conductors in the channel, for example by printing, e.g. in the upper and lower surfaces of the peripheral lip of the chassis. A parallel pair of conductors may be provided. Each conductor is preferably co-extensive with the surrounding peripheral lip of the chassis and may have a connector pad provided at each of its four corners. The connector pads are preferably received in the said bores at each corner of the chassis and which receive the linking members.
  • two surfaces of the frame moulding can be made conductive during the moulding process, e.g. by advanced injection moulding techniques.
  • the conductive surfaces of the frame moulding may provide a busbar for electrical connectivity between each of the following pairs, namely adjacent resonant panel acoustic radiators, exciter (s) and frame, and each two resonant panel acoustic radiator assembly to the outside world.
  • the resonant panel acoustic radiator may comprise a member having capability to sustain and propagate input vibrational energy by bending waves in a least one operative area extending transversely of thickness to have resonant mode vibration components distributed over said at least one area and have predetermined preferential locations or sites within said area for vibration exciter means and having an exciter mounted on said member at one of said locations or sites to vibrate the member to cause it to resonate forming an acoustic radiator which provides an acoustic output when resonating.
  • the or each vibration exciter may be of the kind described in our International patent application 098.31188, which describes a vibration exciter which can be freely or resiliently suspended on a support, e.g. the body or chassis of the present invention.
  • Figure 2 is an exploded perspective view of the modular assembly of Figure 1 ;
  • Figure 3 is a perspective view showing the interior face of a basket or chassis for the modular assembly of Figure 1, and
  • Figure 4 is a perspective view of a resonant acoustic radiator panel for the modular assembly of Figure 1;
  • Figure 5 is a perspective view of two interconnected modular assemblies;
  • Figure 6 is a perspective view of four interconnected modular assemblies
  • Figure 7 is an enlarged scrap perspective view of a linking member interconnecting two modular assemblies
  • Figures 8 is an enlarged scrap perspective view of a linking member and a corner of one modular assembly
  • Figure 9 is an enlarged scrap perspective view of a linking member interconnecting four modular assemblies
  • Figure 10 is an enlarged scrap perspective view of a linking member and the corners of two modular assemblies
  • Figure 11a, lib, lie are respective perspective views of parallel and serial linking members
  • Figure 12 is an exploded perspective view of the modular assembly of Figure 1 with the addition of a pair of busbars ;
  • Figure 13 is a perspective view of a connector pad
  • Figure 14 is a partial cross-section through a pair of modular assemblies and a linking member connecting them together.
  • Figures 1 to 4 illustrate a flat generally rectangular modular loudspeaker drive unit assembly (1) comprising a generally rectangular stiff lightweight resonant acoustic radiator panel (2), e.g. of the kind described in
  • the chassis (3) encloses the radiator panel (2) and is formed with a surrounding outwardly facing conduit (14) defined between outwardly projecting flanges (11) in which services such as electrical input leads to the vibration exciters (4) can be located.
  • the conduit (14) is thus in the form of a channel extending round the periphery of the chassis (3) .
  • Figures 1 and 2 also illustrate a means (7) for freely suspending the acoustic radiator (2) on the chassis (3) by its edges.
  • the suspension (7) comprises arms or links (8) hinged at one end to the chassis (3) and at the other end to the radiator (2) for swinging movement about respective parallel axes at opposite ends of the arms or links (8) .
  • the connections of the arms or links (8) to the radiator (2) is by means of resilient foam pads (10) each formed with a bore (26) , which receive hinge pins (9) provided on one end of each of the arms or links (8) .
  • the other end of each arm or link (8) is formed with a cylindrical boss (24) received in a corresponding aperture (29) on the chassis (3) .
  • the suspension (7) is such as to allow free movement of the acoustic radiator (2) in directions normal to the plane while preventing movement of the radiator (2) in its plane .
  • a pair of inertial electro- dynamic vibration exciters (4) are coupled to the radiator (2) to launch bending wave vibration into the radiator.
  • the exciters (4) are suspended on the chassis (3) such that their motion normal to the plane of the radiator (2) is unimpeded and to prevent movement of the exciters in the plane of the radiator (2) whereby centring of the relatively movable parts of the exciters is ensured.
  • This exciter suspension is the subject of International patent application W098/31188.
  • This suspension resembles, at least in function, the spider commonly found in the drive units of conventional pistonic loudspeakers, and is in the form of a disc-like plate (5) having an inner portion attached to the exciter and an outer portion attached to the chassis, the inner and outer portions being separated such that the one can move normally with respect to the other and so that relative movement in the plane of the disc-like plate is prevented.
  • This is achieved by forming the disc (5) with circumferential and radial slits (30,32) respectively to form a pair of curved limbs (33) the free ends (31) of which are attached to the chassis.
  • the chassis (3) is formed with a plate-like exciter locating portion (23) formed with opposed apertures (25) which align with and surround the respective exciters (4) and to which portion (23), the free ends (31) of the limbs (33) are attached.
  • a heat sink (6) is attached to each exciter over the top of the plate (5) , to assist in cooling the exciters during use .
  • FIG 3 shows the interior face of the basket or chassis (3) .
  • the chassis (3) is a tray-like member comprising a perforate plate-like member (34) having an upstanding rim (35) which carries the surrounding pair of outwardly extending flanges (11) which define the conduit (14) .
  • the chassis (3) is lightweight and may, for example, be a plastics moulding.
  • FIG 4 illustrates the positions of the resilient foam pads (10) on the acoustic radiator (2) .
  • the foam pads comprise bores (26) to receive hinge pins (9) provided on the ends of the arms or links (8) of the means (7) for suspending the edges of the acoustic radiator (2) on the chassis (3) .
  • the foam pads (10) are positioned on all four sides of the radiator (2) and the foam pads (10) on opposite sides of the radiator (2) are attached near to diagonally opposed corners of the radiator (2) .
  • the resilient foam pads (10) which may be of rubber or a rubber-like material, are fixed to the radiator (2), e.g. by means of an adhesive.
  • Figures 5 and 6 illustrate respectively the interconnection of the chassis (3) of two and four of the modular assemblies (1) of Figures 1 to 4.
  • the corners of the chassis are formed with bores (15) for receiving linking members (16,18) comprising respective pegs (17) which are frictionally received in the bores (15) to hold the two assemblies together edge-to-edge to form a large loudspeaker panel.
  • the linking member (16) comprises two parallel pegs and is used to hold two modular assemblies (1) together.
  • the linking member (18) comprises four parallel pegs arranged in a square formation. A combination of the linking members (16,18) may be used to hold four assemblies together.
  • Figure 7 illustrates the detail of the linking member (16) of Figure 5 which comprises two parallel pegs (17', 17") interconnected by a web or arm (27).
  • the two pegs (17 ',17") are frictionally received in the bores (15', 15") to interconnect two modular assemblies (1) of the kind shown in Figures 1 to 4.
  • Figures 8 to 10 illustrate the detail of the linking member (18) of Figure 6.
  • the linking member (18) comprises four pegs (17) interconnected by a cruciform web (28) .
  • the web (28) comprises a generally rectangular central body (38) and four arms (39) which extend from the four corners of the rectangular body (38) .
  • Each peg (17) is frictionally received in a bore (15) at the corner of the chassis (3) of a modular assembly (1) of Figures 1 to 4.
  • Figure 9 illustrates how four modular assemblies (1) are interconnected by a linking member (18) which has each of its pegs (17) frictionally received in bores (15) at the corners of the modular assemblies (1) .
  • Figure 10 illustrates the details of the bores (15) which frictionally receive the pegs (17) .
  • the bores (15) are generally cylindrical with a rectangular groove (40) to receive the arm (39) of the web (28) which interconnects the pegs ( 17 ) .
  • Figures 11a, lib and lie are perspective views of series and parallel connected linking member (16) , which are used to establish an electrical link between adjacent acoustic radiators.
  • the linking member (16) comprises two pegs (17', 17") each of which comprise an outer electrical connector (20) , and an inner electrical connector (19) arranged in a co-axial configuration .
  • a serial electrical connection between the assemblies (1) is established by electrically connecting via conductor wires (21) , the inner connectors (19,19') of each peg (17 ',17") to the outer connectors (20,20') of the other peg (17', 17").
  • a parallel connection is established by electrically connecting via conductor wires (21) the inner conductors
  • Figure 12 illustrates the modular assembly (1) , with an opposed pair of conductor rails or busbars (12,13), which are mounted on or located in or embedded in the chassis (3) to surround the chassis.
  • One conductor (12) may be positively charged and the other conductor (13) may be negatively polarised to carry the electrical signal between adjacent assemblies (1).
  • the conductors (12,13) are co-extensive with the peripheral lip (11) of the chassis (3) and have connector pads (22) at each corner and which pads are arranged to fit into the bores (15) at each corner of the chassis (3) , for electrical contact with the linking members illustrated in Figures 11a, lib and lie above .
  • Figure 13 illustrates the detail of a connector pad
  • the (22) comprises a circular ring (36) and a link (37) , attaching the ring (36) to the connector pad (22) .
  • busbars (12,13) are electrically connected to the electrical connections of the linking members (16,18) by means of screws (41) which engage threaded inserts (42) in the linking members to hold the linking members in the bores (15) in the assemblies
  • the invention thus provides a simple manner of adapting resonant panel acoustic radiators for mass production and for electrically connecting interlinked acoustic radiators.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

L'invention porte sur un dispositif comprenant: un radiateur à panneaux acoustiques résonants, un corps auquel ledit radiateur est suspendu, au moins un émetteur de vibrations placé sur le radiateur et dirigeant des ondes de courbure dans le radiateur afin de le faire résonner et produire un signal acoustique de sortie, et des moyens, solidaires du corps, de suspension du radiateur lui permettant de se déplacer librement.
PCT/GB1998/002532 1997-09-04 1998-08-24 Haut-parleur WO1999012387A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BR9812163-4A BR9812163A (pt) 1997-09-04 1998-08-24 Alto-falantes
AU88702/98A AU745486B2 (en) 1997-09-04 1998-08-24 Loudspeakers
JP2000509253A JP2001515333A (ja) 1997-09-04 1998-08-24 ラウドスピーカ
IL13483498A IL134834A0 (en) 1997-09-04 1998-08-24 Loudspeakers
EP98940362A EP1010351A1 (fr) 1997-09-04 1998-08-24 Haut-parleur
KR1020007002300A KR20010023648A (ko) 1997-09-04 1998-08-24 확성기
CA002297041A CA2297041A1 (fr) 1997-09-04 1998-08-24 Haut-parleur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9718730.6A GB9718730D0 (en) 1997-09-04 1997-09-04 Loudspeakers
GB9718730.6 1997-09-04
GB9727193.6 1997-12-23
GBGB9727193.6A GB9727193D0 (en) 1997-12-23 1997-12-23 Loudspeakers

Publications (1)

Publication Number Publication Date
WO1999012387A1 true WO1999012387A1 (fr) 1999-03-11

Family

ID=26312175

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/002532 WO1999012387A1 (fr) 1997-09-04 1998-08-24 Haut-parleur

Country Status (11)

Country Link
EP (1) EP1010351A1 (fr)
JP (1) JP2001515333A (fr)
KR (1) KR20010023648A (fr)
CN (1) CN1269958A (fr)
AR (1) AR013954A1 (fr)
AU (1) AU745486B2 (fr)
BR (1) BR9812163A (fr)
CA (1) CA2297041A1 (fr)
IL (1) IL134834A0 (fr)
TW (1) TW410525B (fr)
WO (1) WO1999012387A1 (fr)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001045458A2 (fr) * 1999-12-16 2001-06-21 New Transducers Limited Dispositifs acoustiques
WO2001047320A1 (fr) * 1999-12-21 2001-06-28 New Transducers Limited Haut-parleurs
EP1120994A2 (fr) * 2000-01-14 2001-08-01 Harman Audio Electronic Systems GmbH Disposition de haut-parleurs plats
US6411723B1 (en) 1998-06-22 2002-06-25 Slab Technology Limited Loudspeakers
WO2006037587A3 (fr) * 2004-10-04 2006-05-18 Volkswagen Ag Dispositif et procede de communication et/ou de perception acoustique dans un vehicule
EP1718107A2 (fr) * 2005-04-28 2006-11-02 Panphonics Oy Transducteur électrostatique,son procédé de connexion et procédé de fabrication
US7548854B2 (en) 2002-01-31 2009-06-16 Awi Licensing Company Architectural sound enhancement with pre-filtered masking sound
US9564146B2 (en) 2014-08-01 2017-02-07 Bongiovi Acoustics Llc System and method for digital signal processing in deep diving environment
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
US9615813B2 (en) 2014-04-16 2017-04-11 Bongiovi Acoustics Llc. Device for wide-band auscultation
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
US9741355B2 (en) 2013-06-12 2017-08-22 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9793872B2 (en) 2006-02-07 2017-10-17 Bongiovi Acoustics Llc System and method for 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
US9906867B2 (en) 2015-11-16 2018-02-27 Bongiovi Acoustics Llc Surface acoustic transducer
US9906858B2 (en) 2013-10-22 2018-02-27 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
US10158337B2 (en) 2004-08-10 2018-12-18 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
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
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US10848118B2 (en) 2004-08-10 2020-11-24 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
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
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
US11211043B2 (en) 2018-04-11 2021-12-28 Bongiovi Acoustics Llc Audio enhanced hearing protection system
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0229954D0 (en) * 2002-12-20 2003-01-29 Newlands Technology Ltd Actuator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247925A (en) * 1962-03-08 1966-04-26 Lord Corp Loudspeaker
US3594028A (en) * 1969-08-07 1971-07-20 Macomber Inc Sheet metal joint for panels and sheets
FR2303393A1 (fr) * 1975-03-03 1976-10-01 Motorola Inc Dispositif de raccordement electrique surminiaturise
US4440818A (en) * 1983-03-30 1984-04-03 Teknor Apex Company Floor mat connector device
DE3733000A1 (de) * 1987-09-30 1989-04-13 Rainer Cornelius Friz Daempfungselemente fuer mehrwegmembranen
US4928312A (en) * 1988-10-17 1990-05-22 Amel Hill Acoustic transducer
WO1992003024A1 (fr) * 1990-08-04 1992-02-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Haut-parleur sous forme de panneau

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247925A (en) * 1962-03-08 1966-04-26 Lord Corp Loudspeaker
US3594028A (en) * 1969-08-07 1971-07-20 Macomber Inc Sheet metal joint for panels and sheets
FR2303393A1 (fr) * 1975-03-03 1976-10-01 Motorola Inc Dispositif de raccordement electrique surminiaturise
US4440818A (en) * 1983-03-30 1984-04-03 Teknor Apex Company Floor mat connector device
DE3733000A1 (de) * 1987-09-30 1989-04-13 Rainer Cornelius Friz Daempfungselemente fuer mehrwegmembranen
US4928312A (en) * 1988-10-17 1990-05-22 Amel Hill Acoustic transducer
WO1992003024A1 (fr) * 1990-08-04 1992-02-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Haut-parleur sous forme de panneau

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411723B1 (en) 1998-06-22 2002-06-25 Slab Technology Limited Loudspeakers
WO2001045458A3 (fr) * 1999-12-16 2004-02-19 New Transducers Ltd Dispositifs acoustiques
WO2001045458A2 (fr) * 1999-12-16 2001-06-21 New Transducers Limited Dispositifs acoustiques
WO2001047320A1 (fr) * 1999-12-21 2001-06-28 New Transducers Limited Haut-parleurs
GB2371941A (en) * 1999-12-21 2002-08-07 New Transducers Ltd Loudspeakers
EP1120994A3 (fr) * 2000-01-14 2006-06-14 Harman Audio Electronic Systems GmbH Disposition de haut-parleurs plats
EP1120994A2 (fr) * 2000-01-14 2001-08-01 Harman Audio Electronic Systems GmbH Disposition de haut-parleurs plats
US7548854B2 (en) 2002-01-31 2009-06-16 Awi Licensing Company Architectural sound enhancement with pre-filtered masking sound
US11431312B2 (en) 2004-08-10 2022-08-30 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
US10848118B2 (en) 2004-08-10 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US10666216B2 (en) 2004-08-10 2020-05-26 Bongiovi Acoustics Llc System and method for digital signal processing
WO2006037587A3 (fr) * 2004-10-04 2006-05-18 Volkswagen Ag Dispositif et procede de communication et/ou de perception acoustique dans un vehicule
EP1718107A3 (fr) * 2005-04-28 2010-10-27 Panphonics Oy Transducteur électrostatique,son procédé de connexion et procédé de fabrication
EP1718107A2 (fr) * 2005-04-28 2006-11-02 Panphonics Oy Transducteur électrostatique,son procédé de connexion et procédé de fabrication
US9793872B2 (en) 2006-02-07 2017-10-17 Bongiovi Acoustics Llc System and method for digital signal processing
US11425499B2 (en) 2006-02-07 2022-08-23 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
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
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
US10412533B2 (en) 2013-06-12 2019-09-10 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
US9741355B2 (en) 2013-06-12 2017-08-22 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
US10999695B2 (en) 2013-06-12 2021-05-04 Bongiovi Acoustics Llc System and method for stereo field enhancement in two channel audio systems
US10917722B2 (en) 2013-10-22 2021-02-09 Bongiovi Acoustics, Llc System and method for digital signal processing
US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
US11418881B2 (en) 2013-10-22 2022-08-16 Bongiovi Acoustics Llc System and method for digital signal processing
US10313791B2 (en) 2013-10-22 2019-06-04 Bongiovi Acoustics Llc System and method for digital signal processing
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
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
US11284854B2 (en) 2014-04-16 2022-03-29 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
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
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
US9998832B2 (en) 2015-11-16 2018-06-12 Bongiovi Acoustics Llc Surface acoustic transducer
US9906867B2 (en) 2015-11-16 2018-02-27 Bongiovi Acoustics Llc Surface acoustic transducer
US11211043B2 (en) 2018-04-11 2021-12-28 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

Also Published As

Publication number Publication date
KR20010023648A (ko) 2001-03-26
CN1269958A (zh) 2000-10-11
AR013954A1 (es) 2001-01-31
AU745486B2 (en) 2002-03-21
BR9812163A (pt) 2000-07-18
IL134834A0 (en) 2001-05-20
JP2001515333A (ja) 2001-09-18
AU8870298A (en) 1999-03-22
CA2297041A1 (fr) 1999-03-11
TW410525B (en) 2000-11-01
EP1010351A1 (fr) 2000-06-21

Similar Documents

Publication Publication Date Title
AU745486B2 (en) Loudspeakers
CN108881523B (zh) 电子显示设备以及电子设备
AU725230B2 (en) Electro-dynamic exciter
CN1976541B (zh) 骨传导扬声器
CN108616797A (zh) 直驱式激励器以及屏幕发声装置
US6278787B1 (en) Loudspeakers
KR20000070045A (ko) 확성기
CN108632727A (zh) 便携终端
PL182794B1 (pl) Inercyjny przetwornik drga�
WO2016173276A1 (fr) Module de haut-parleur
EP0618752B1 (fr) Structure de haut-parleur
US6606390B2 (en) Loudspeakers
CN111698621B (zh) 发声装置和电子产品
CA2345749A1 (fr) Haut-parleurs
CN107396253A (zh) 电声转换装置及其悬挂机构
CN111031451B (zh) 一种激励器及电子产品
JP2002536929A (ja) 撓み波振動を生成するための振動励振器
CN1350715A (zh) 用于移动电话机的振动器组件
MXPA00002260A (en) Loudspeakers
CN212727408U (zh) 扬声器
CN111935613B (zh) 扬声器
CN207354586U (zh) 电声转换装置及其悬挂机构
CN101771914B (zh) 发声模组及使用该发声模组的发声装置
CN112954090B (zh) 屏幕发声设备
CN213462304U (zh) 一种扬声器

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 134834

Country of ref document: IL

Ref document number: 98808774.X

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1998940362

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2297041

Country of ref document: CA

Ref document number: 2297041

Country of ref document: CA

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 88702/98

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 09516116

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 1020007002300

Country of ref document: KR

Ref document number: PA/a/2000/002260

Country of ref document: MX

WWP Wipo information: published in national office

Ref document number: 1998940362

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1020007002300

Country of ref document: KR

WWG Wipo information: grant in national office

Ref document number: 88702/98

Country of ref document: AU

WWW Wipo information: withdrawn in national office

Ref document number: 1998940362

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1020007002300

Country of ref document: KR