EP1371262A2 - Speaker arrangement - Google Patents

Speaker arrangement

Info

Publication number
EP1371262A2
EP1371262A2 EP02704955A EP02704955A EP1371262A2 EP 1371262 A2 EP1371262 A2 EP 1371262A2 EP 02704955 A EP02704955 A EP 02704955A EP 02704955 A EP02704955 A EP 02704955A EP 1371262 A2 EP1371262 A2 EP 1371262A2
Authority
EP
European Patent Office
Prior art keywords
speaker arrangement
speaker
display panels
planar surface
filling material
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.)
Granted
Application number
EP02704955A
Other languages
German (de)
French (fr)
Other versions
EP1371262B1 (en
Inventor
Ian Alexander Hynd
Norman Richard 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.)
SFX Technologies Ltd
Original Assignee
HARRIS HYND Ltd
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 HARRIS HYND Ltd filed Critical HARRIS HYND Ltd
Publication of EP1371262A2 publication Critical patent/EP1371262A2/en
Application granted granted Critical
Publication of EP1371262B1 publication Critical patent/EP1371262B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones

Definitions

  • the present invention relates to a speaker arrangement used particularly, but not exclusively, to increase the performance of low cost loudspeakers in concealed or secure applications (such as behind advertising display panels) , where a conventional speaker grill cannot be used.
  • a speaker arrangement comprising a sound emitting element, a filling material engaging the sound emitting element and defining a first generally planar surface adapted to abut a second generally planar surface such that sound is transmitted from the sound emitting element through the filling material to the second planar surface.
  • the filling material is inserted into the interior of the sound emitting element.
  • the sound emitting element is in the form of a cone .
  • the first planar surface is at the base of the cone.
  • the second planar surface resonates to produce sound .
  • the filling material is formed of one of the following materials: Liquids such as water and water based solutions, alcohol (e.g. methanol, ethanol), metals (such as mercury) , glycerinates, oils (synthetic, mineral or vegetable) ; gels such as gelatines, petroleum, silicon, polymeric gels; greases such as silicon, graphite, petroleum; elastomers such as silicon rubber, natural rubber/latex, PVC, acrylate cross polymers; solids (powders) such as graphite, iron, talcum.
  • Liquids such as water and water based solutions, alcohol (e.g. methanol, ethanol), metals (such as mercury) , glycerinates, oils (synthetic, mineral or vegetable)
  • gels such as gelatines, petroleum, silicon, polymeric gels
  • greases such as silicon, graphite, petroleum
  • elastomers such as silicon rubber, natural rubber/latex, PVC, acrylate cross
  • an intermediate layer is provided between the first planar surface and the second planar surface, said intermediate layer acting to hold the cone against the second planar surface.
  • the intermediate layer is formed of silicon grease.
  • the filling material is retained within the cone by a membrane which is conjoined to the base of the cone.
  • the membrane is formed of one of the following materials: polypropylene, PVC, styrene, PTFE, rubber (natural or silicon) or cellulose.
  • Fig. 1 is an exploded schematic perspective view of part of the speaker arrangement of the present invention, viewed from below;
  • Fig. 2 is an exploded schematic perspective view of part of the speaker arrangement of Fig. 1, viewed from above;
  • Fig. 3 is a schematic perspective view of part of the speaker arrangement of the present invention, viewed from above;
  • Fig. 4 is a schematic cross sectional diagram of one embodiment the speaker arrangement of the present invention.
  • a speaker arrangement 10 which comprises a sound emitting element which is formed of a standard loudspeaker 11 having a cone 12.
  • the cone 12 is filled with a filling material 13 which is inserted into the interior of the cone 12.
  • the filling material 13 fills the interior of the cone 12 and defines a first planar surface at the base of the cone 12.
  • the filling material 13 is retained in place by a membrane 14 which is joined to the base end of the cone 12.
  • the first planar surface abuts against a second planar surface (such as the rear side of a graphic display panel 15) by way of an intermediate layer 16 which is provided between the first planar surface and the second planar surface.
  • the intermediate layer 16 acts to removeably attach the loudspeaker 11 (with the filling material 13 inserted) to the rear of the display panel 15.
  • the loudspeaker 11 may also be permanently attached to the rear of the display panel 15 if desired.
  • the speaker arrangement 10 can also operate with no membrane 14 and/or no intermediate layer 16.
  • the first planar surface of the filling material 13 can protrude slightly from the base of the cone 12 to define an expansion gap around the perimeter of the base of the cone 12, between the base of the cone 12 and the second planar surface .
  • the invention has broad applications and alternative uses are envisaged for the loudspeaker 11 having the filling material 13 inserted, for example, instead of being used at the rear of a display panel 15, the loudspeaker 11 could be attached to the rear of wall panels, plasterboard, glass, wood, tiles or any other surface.
  • the loudspeaker 11 with fill material 13 inserted is particularly useful in concealed location where it is preferable that no hole is cut in the mounting surface to hold the speaker and where it is desirable not to have a visible speaker grill, such as for cases where aesthetic or security considerations must be taken into account .
  • the filling material 13 may be formed of one of the following materials: Liquids such as water and water based solutions, alcohol (e.g. methanol, ethanol), metals (such as mercury) , glycerinates, oils (synthetic, mineral or vegetable) ; gels such as gelatines, petroleum, silicon, polymeric gels; greases such as silicon, graphite, petroleum; elastomers such as silicon rubber, natural rubber/latex, PVC, acrylate cross polymers; solids (powders) such as graphite, iron, talcum.
  • Liquids such as water and water based solutions, alcohol (e.g. methanol, ethanol), metals (such as mercury) , glycerinates, oils (synthetic, mineral or vegetable) ; gels such as gelatines, petroleum, silicon, polymeric gels; greases such as silicon, graphite, petroleum; elastomers such as silicon rubber, natural rubber/latex, PVC, acrylate cross
  • pressurised gas could be utilised as the filling material 13, the membrane 14 acting to contain the pressurised gas within the cone 12.
  • the intermediate layer 16 may be formed of silicon grease.
  • the membrane 14 may be formed of one of the following materials: polypropylene, PVC, styrene, PTFE, rubber (natural or silicon) or cellulose.
  • the cone 12 may be formed of one of the following materials: Polypropylene, Mylar, Kevlar, Carbon Fibre, Aluminium, Polycarbonate, Styrene or paper.
  • the loudspeaker 11 is driven by an amplifier (not shown) which is integrated into circuitry, the circuitry also including an audio input (such as an MP3 player) , volume control and a power source.
  • the circuitry can also incorporate further input signals such as signals from activation sensors and signals from a communication device used to update the audio data utilised by the MP3 player.
  • the speaker arrangement 10 is connected to the rear of the display panel 15.
  • the loudspeaker 11 is connected to the amplifier (incorporated into the circuitry) .
  • Optional sensors can also be connected to the circuitry to provide an interactive element to the display panel 15. For example, the sensors may activate the audio input when they detect the motion of a person passing the display panel 15, detect the touch of a specific area of the display panel or may be set to activate the audio input on a time dependent loop.
  • the MP3 player on the circuitry is loaded with audio data, such as an advertising trailer.
  • audio data such as an advertising trailer.
  • Multiple advertising trailers can be stored for use and different advertising trailers may be loaded to activate corresponding to specific sensors which are activated.
  • the MP3 player and the amplifier are adapted, by way of circuitry, to send a signal to the loudspeaker 11 which drives the loudspeaker 11 to emit a sound.
  • This sound passes through the filling material 13, the membrane 14 and the intermediate layer 16 and is transmitted to the display panel 15, which resonates to produce sound.
  • the MP3 audio input used may be substituted for any other suitable form of audio input such as , for example, compact disc, mini-disc or microphone.
  • the speaker arrangement of the invention can be advantageously used in a method of providing display panels. Accordingly there is also provided a method of providing display panels, the display panels incorporating an audio player and speaker, the method comprising the steps of supplying and distributing display panels incorporating a speaker, designing and producing panel graphics to be displayed on the display panels, producing and directing audio messages, producing and distributing of the audio messages to a consumer, and updating and replacing the art work on the graphic panels when necessary.
  • the audio messages are in MP3 format and can be updated and/or distributed via the Internet, Intranet, by modem link or by mobile telephone connection or any other communication link.
  • the method of providing display panels as illustrated in Fig . 5 . is a turnkey system where all the customers needs in obtaining and maintaining display panels are catered for.
  • the method comprises the steps of the supply and distribution of speaker display panels (such as those described above) , the origination and production of panel graphics, the production and direction of audio messages, the production and distribution of audio message updates and distribution of these updates via a communication device such as the internet, and the updating and replacement of the artwork on the display panels.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

There is described a speaker arrangement (10) which comprises a sound emitting element which is formed of a standard loudspeaker (11) having a cone (12). The cone (12) is filled with a filling material (13) which is inserted into the interior of the cone (12). There is also described a method of providing display panels, the display panels incorporating an audio player and speaker, the method comprising the steps of supplying and distributing display panels incorporating a speaker, designing and producing panel graphics to be displayed on the display panels, producing and directing audio messages, producing and distributing of the audio messages to a consumer, and updating and replacing the art work on the graphic panels when necessary.

Description

Speaker Arrangement
The present invention relates to a speaker arrangement used particularly, but not exclusively, to increase the performance of low cost loudspeakers in concealed or secure applications (such as behind advertising display panels) , where a conventional speaker grill cannot be used.
Conventional speaker arrangements for use in such concealed applications (such as behind advertising display panels) , must be permanently fixed to the rear surface of the display panel in order to transmit the sound effectively. If not securely fixed, poor sound quality results.
According to the present invention there is provided a speaker arrangement comprising a sound emitting element, a filling material engaging the sound emitting element and defining a first generally planar surface adapted to abut a second generally planar surface such that sound is transmitted from the sound emitting element through the filling material to the second planar surface.
Preferably, the filling material is inserted into the interior of the sound emitting element.
Preferably, the sound emitting element is in the form of a cone .
Preferably, the first planar surface is at the base of the cone.
Preferably, the second planar surface resonates to produce sound .
Preferably the filling material is formed of one of the following materials: Liquids such as water and water based solutions, alcohol (e.g. methanol, ethanol), metals (such as mercury) , glycerinates, oils (synthetic, mineral or vegetable) ; gels such as gelatines, petroleum, silicon, polymeric gels; greases such as silicon, graphite, petroleum; elastomers such as silicon rubber, natural rubber/latex, PVC, acrylate cross polymers; solids (powders) such as graphite, iron, talcum.
Preferably, an intermediate layer is provided between the first planar surface and the second planar surface, said intermediate layer acting to hold the cone against the second planar surface. Preferably the intermediate layer is formed of silicon grease.
Preferably, the filling material is retained within the cone by a membrane which is conjoined to the base of the cone.
Preferably the membrane is formed of one of the following materials: polypropylene, PVC, styrene, PTFE, rubber (natural or silicon) or cellulose.
Embodiments of the present invention will now be described by way of example only, with reference to the accompanying drawings, where:
Fig. 1 is an exploded schematic perspective view of part of the speaker arrangement of the present invention, viewed from below;
Fig. 2 is an exploded schematic perspective view of part of the speaker arrangement of Fig. 1, viewed from above;
Fig. 3 is a schematic perspective view of part of the speaker arrangement of the present invention, viewed from above; and
Fig. 4 is a schematic cross sectional diagram of one embodiment the speaker arrangement of the present invention. Referring to the drawings, there is illustrated a speaker arrangement 10 which comprises a sound emitting element which is formed of a standard loudspeaker 11 having a cone 12. The cone 12 is filled with a filling material 13 which is inserted into the interior of the cone 12.
The filling material 13 fills the interior of the cone 12 and defines a first planar surface at the base of the cone 12.
The filling material 13 is retained in place by a membrane 14 which is joined to the base end of the cone 12.
The first planar surface abuts against a second planar surface (such as the rear side of a graphic display panel 15) by way of an intermediate layer 16 which is provided between the first planar surface and the second planar surface. The intermediate layer 16 acts to removeably attach the loudspeaker 11 (with the filling material 13 inserted) to the rear of the display panel 15. The loudspeaker 11 may also be permanently attached to the rear of the display panel 15 if desired. The speaker arrangement 10 can also operate with no membrane 14 and/or no intermediate layer 16.
The first planar surface of the filling material 13 can protrude slightly from the base of the cone 12 to define an expansion gap around the perimeter of the base of the cone 12, between the base of the cone 12 and the second planar surface .
The invention has broad applications and alternative uses are envisaged for the loudspeaker 11 having the filling material 13 inserted, for example, instead of being used at the rear of a display panel 15, the loudspeaker 11 could be attached to the rear of wall panels, plasterboard, glass, wood, tiles or any other surface. The loudspeaker 11 with fill material 13 inserted is particularly useful in concealed location where it is preferable that no hole is cut in the mounting surface to hold the speaker and where it is desirable not to have a visible speaker grill, such as for cases where aesthetic or security considerations must be taken into account .
There are many envisaged materials which could be used in the forming of the speaker arrangement 11, some of these are listed below:
The filling material 13 may be formed of one of the following materials: Liquids such as water and water based solutions, alcohol (e.g. methanol, ethanol), metals (such as mercury) , glycerinates, oils (synthetic, mineral or vegetable) ; gels such as gelatines, petroleum, silicon, polymeric gels; greases such as silicon, graphite, petroleum; elastomers such as silicon rubber, natural rubber/latex, PVC, acrylate cross polymers; solids (powders) such as graphite, iron, talcum.
Alternatively, it is also envisaged that pressurised gas could be utilised as the filling material 13, the membrane 14 acting to contain the pressurised gas within the cone 12.
The intermediate layer 16 may be formed of silicon grease.
The membrane 14 may be formed of one of the following materials: polypropylene, PVC, styrene, PTFE, rubber (natural or silicon) or cellulose.
The cone 12 may be formed of one of the following materials: Polypropylene, Mylar, Kevlar, Carbon Fibre, Aluminium, Polycarbonate, Styrene or paper.
The loudspeaker 11 is driven by an amplifier (not shown) which is integrated into circuitry, the circuitry also including an audio input (such as an MP3 player) , volume control and a power source. The circuitry can also incorporate further input signals such as signals from activation sensors and signals from a communication device used to update the audio data utilised by the MP3 player. In use in the specific application of the graphic display panel, the speaker arrangement 10 is connected to the rear of the display panel 15. The loudspeaker 11 is connected to the amplifier (incorporated into the circuitry) . Optional sensors can also be connected to the circuitry to provide an interactive element to the display panel 15. For example, the sensors may activate the audio input when they detect the motion of a person passing the display panel 15, detect the touch of a specific area of the display panel or may be set to activate the audio input on a time dependent loop.
The MP3 player on the circuitry is loaded with audio data, such as an advertising trailer. Multiple advertising trailers can be stored for use and different advertising trailers may be loaded to activate corresponding to specific sensors which are activated.
When activated, the MP3 player and the amplifier are adapted, by way of circuitry, to send a signal to the loudspeaker 11 which drives the loudspeaker 11 to emit a sound. This sound passes through the filling material 13, the membrane 14 and the intermediate layer 16 and is transmitted to the display panel 15, which resonates to produce sound.
It has been found that the sound quality of the sound emitted from the resonating display panel 15 when using the loudspeaker 11 filled with the filling material 13 is greatly enhanced over the use of a speaker having no filling material 13, both the bass and the mid range responses are enhanced.
The MP3 audio input used may be substituted for any other suitable form of audio input such as , for example, compact disc, mini-disc or microphone.
Modifications and improvements may be made to the foregoing without departing from the scope of the present invention.
The speaker arrangement of the invention can be advantageously used in a method of providing display panels. Accordingly there is also provided a method of providing display panels, the display panels incorporating an audio player and speaker, the method comprising the steps of supplying and distributing display panels incorporating a speaker, designing and producing panel graphics to be displayed on the display panels, producing and directing audio messages, producing and distributing of the audio messages to a consumer, and updating and replacing the art work on the graphic panels when necessary.
Preferably, the audio messages are in MP3 format and can be updated and/or distributed via the Internet, Intranet, by modem link or by mobile telephone connection or any other communication link.
The method of providing display panels as illustrated in Fig . 5 . is a turnkey system where all the customers needs in obtaining and maintaining display panels are catered for.
The method comprises the steps of the supply and distribution of speaker display panels (such as those described above) , the origination and production of panel graphics, the production and direction of audio messages, the production and distribution of audio message updates and distribution of these updates via a communication device such as the internet, and the updating and replacement of the artwork on the display panels.
Modifications and improvements may be made to the foregoing without departing from the scope of the present invention.

Claims

Claims
1. A speaker arrangement comprising a sound emitting element, a filling material engaging the sound emitting element and defining a first generally planar surface adapted to abut a second generally planar surface such that sound is transmitted from the sound emitting element through the filling material to the second planar surface.
2. A speaker arrangement as claimed in Claim 1, wherein the filling material is inserted into the interior of the sound emitting element .
3. A speaker arrangement as claimed in Claim 1 or Claim 2, wherein the sound emitting element is in the form of a cone.
4. A speaker arrangement as claimed in Claim 3, wherein the first planar surface is at the base of the cone.
5. A speaker arrangement as claimed in any preceding claim, wherein the second planar surface resonates to produce sound.
6. A speaker arrangement as claimed in any preceding claim, wherein the filling material is selected from one of the following materials: liquids; gels; alcohols; metals; oils; greases; elastomers; solids; powders.
7. A speaker arrangement as claimed in any preceding claim, wherein the filling material is selected from one of the following materials: water; water based solutions; methanol; ethanol; mercury; glycerinates; synthetic oils, mineral oils or vegetable oils; gelatines; petroleum gel; silicon gel; polymeric gels; silicon grease; graphite grease; petroleum grease; silicon rubber; natural rubber/latex; PVC; acrylate cross polymers; graphite solids; iron solids; talcum.
8. A speaker arrangement as claimed in any preceding claim, wherein an intermediate layer is provided between the first planar surface and the second planar surface.
9. A speaker arrangement as claimed in Claim 8, wherein the intermediate layer is formed of silicon grease.
10. A speaker arrangement as claimed in any of Claims 3 to 9 when dependent upon Claim 3, wherein the filling material is retained within the sound emitting element by a membrane.
11. A speaker arrangement as claimed in Claim 10, wherein the membrane is formed of one of the following materials: polypropylene, PVC, styrene, PTFE, rubber (natural or silicon) or cellulose.
12. A method of providing display panels, the display panels incorporating an audio player and speaker, the method comprising the steps of supplying and distributing display panels incorporating a speaker, designing and producing panel graphics to be displayed on the display panels, producing and directing audio messages, producing and distributing of the audio messages to a consumer, and updating and replacing the art work on the graphic panels when necessary.
13. A method as claimed in Claim 11, wherein the audio messages are in MP3 format and can be updated or distributed via a communication link.
14. A method as claimed in Claim 11 or Claim 12 comprising the steps of the supply and distribution of speaker display panels, the origination and production of panel graphics, the production and direction of audio messages, the production and distribution of audio message updates and distribution of these updates via a communication device such as the internet, and the updating and replacement of the artwork on the display panels.
EP02704955A 2001-03-10 2002-03-11 Speaker arrangement Expired - Lifetime EP1371262B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0105980.7A GB0105980D0 (en) 2001-03-10 2001-03-10 Speaker arrangement
GB0105980 2001-03-10
PCT/GB2002/001109 WO2002074006A2 (en) 2001-03-10 2002-03-11 Speaker arrangement

Publications (2)

Publication Number Publication Date
EP1371262A2 true EP1371262A2 (en) 2003-12-17
EP1371262B1 EP1371262B1 (en) 2010-07-14

Family

ID=9910432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02704955A Expired - Lifetime EP1371262B1 (en) 2001-03-10 2002-03-11 Speaker arrangement

Country Status (6)

Country Link
EP (1) EP1371262B1 (en)
AT (1) ATE474424T1 (en)
AU (1) AU2002238754A1 (en)
DE (1) DE60237002D1 (en)
GB (1) GB0105980D0 (en)
WO (1) WO2002074006A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0314007D0 (en) 2003-06-17 2003-07-23 Harris Hynd Ltd Audio transducer
CN107277700A (en) * 2017-07-10 2017-10-20 歌尔股份有限公司 A kind of sound-producing device, module and electronic equipment
DE102018211426A1 (en) * 2018-07-10 2020-01-16 Faurecia Innenraum Systeme Gmbh Acoustic panel for optimal transmission of sound frequencies and method of manufacturing the same
CN117183041B (en) * 2023-07-11 2024-06-07 南京林业大学 Gelatin-lignin sulfonic acid wood composite acoustic diaphragm and preparation method and application thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861495A (en) * 1973-11-01 1975-01-21 Poe Floyd S Sound reproducing device
JPS5527702A (en) * 1978-08-18 1980-02-28 Sony Corp Vibrator for speaker
JPS57208792A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Diaphragm speaker packed with foamed resin
UA51671C2 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02074006A3 *

Also Published As

Publication number Publication date
DE60237002D1 (en) 2010-08-26
EP1371262B1 (en) 2010-07-14
WO2002074006A2 (en) 2002-09-19
ATE474424T1 (en) 2010-07-15
GB0105980D0 (en) 2001-05-02
WO2002074006A3 (en) 2003-07-10
AU2002238754A1 (en) 2002-09-24

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