EP0987922A2 - Panneau multirésonnant - Google Patents
Panneau multirésonnant Download PDFInfo
- Publication number
- EP0987922A2 EP0987922A2 EP99114408A EP99114408A EP0987922A2 EP 0987922 A2 EP0987922 A2 EP 0987922A2 EP 99114408 A EP99114408 A EP 99114408A EP 99114408 A EP99114408 A EP 99114408A EP 0987922 A2 EP0987922 A2 EP 0987922A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- driver
- resonance plate
- electronics
- resonance
- core layer
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
- H04R2440/01—Acoustic transducers using travelling bending waves to generate or detect sound
Definitions
- the invention is concerned with multi-resonance plates, in particular with the Signal supply and signal processing in such multi-resonance plates.
- Multi-resonance plates for sound radiation are known in the prior art and essentially comprise a flat sound panel, which of at least an electrodynamic driver connected to the sound panel is driven. More details on the structure and the mode of operation such multi-resonance plates are also known under the abbreviation DML for example, the documents DE 19757097 and DE 19757098 which are made the subject of the present application.
- Such multi-resonance plates are intended for the reproduction of sound events be used, it is necessary to have appropriate driver electronics provide with which the received or generated sound signals processed before they are made available to the drivers. Because with this Technology the multi-resonance plates as single Sound reproduction devices can be used, but mainly as so-called baffles with a large number of juxtaposed and connected multi-resonance plates are operated according to the state of the Engineering the driver electronics essentially from an amplifier and in the respective signal path integrated switches. But this technique is disadvantageous in several respects, since the various individual components for Enabling a versatile application in their respective individual data must be oversized. Depending on the application, this may be because Driver power between about 10 and 100 watts must be transmitted mean that, for example, special plug connections in the signal path, extremely low loss cables, complex shielding, large power reserves or large margins in impedances are required.
- the invention is therefore based on the object of a multi-resonance plate specify which simplifies the effort for the driver electronics.
- the entire driver electronics in the air volume integrated multi-resonance plate can or can Multi-resonance plates with each other and / or with little effort Sound signal receiving or generating sound signal source connected become.
- each of these multi-resonance plates one has complete driver electronics in the air volume. Rather, in this Case the complete driver electronics for such multi-resonance plates one Baffle that optimizes, for example, radiation in the high frequency range are formed on the air volumes of the reproducing this sound area Multi-resonance plates should be distributed.
- the Suspension that connects the multi-resonance plate to the frame that The air volume between the frame and the multi-resonance plate is hermetic includes, because in this case the multi-resonance plate and the im Air volume arranged driver electronics also easily in Eavesdropping rooms that are explosive or polluted with the environment or the climate operate.
- the audio electronics the Power amplifier and the respective crossover for frequency separation contains.
- the communication electronics which are responsible for the connection between the Audio electronics and a sound signal source and / or in several, for example multi-resonance plates combined to form a baffle for the connection between the different multi-resonance plates or which one Command inputs carried out in dialog form the interface between those of one User generated commands and the driver electronics and / or one with the Multiresonance plate forms related multimedia center.
- a battery backup which with the other driver electronics in Connection is established.
- the Driver electronics not necessary all of the above components must include. This means, for example, that battery backup is not must be realized if the power supply is able to, too Cover excellence.
- the respective driver electronics comprises one on the each driver tailored power amplifier, this can be with regard to the driver to be driven can be optimized.
- This optimization of Power amplifier has compared to the conventional technology, in which in the Usually an amplifier feeds one or a plurality of drivers, the advantage that the power amplifiers according to the invention have no power reserves must be there, in contrast to the prior art, where the combination between Amplifiers and drivers are often realized by the end user, amplifiers and Driver form a unit.
- This unit formation also has the advantage that the Components are coordinated with each other, which optimizes the different components possible and a mutual destructive effect between these components is excluded.
- the driver electronics with electronic filters in Equipped with an analog or digital structure the frequency separation below Very much use of the power amplifiers assigned to the respective drivers be carried out economically. In particular, the otherwise does not apply to the Prior art arrangements necessary for frequency separation Power electronics.
- the driver electronics from a DC voltage source fed can still be carried out in connection with claim 8 - the power supply together with the audio signal lines, which the Connect the driver electronics to the audio signal source.
- the driver electronics from a DC voltage source fed can still be carried out in connection with claim 8 - the power supply together with the audio signal lines, which the Connect the driver electronics to the audio signal source.
- the (first) Interface which connects the driver electronics with the Sound signal source is used as a bus-compatible interface, because in this If the multi-resonance plates can be operated wherever appropriate bus lines are available. In other words, this makes the multi-resonance plate with appropriate bus technology sole terminal.
- the bus line leading to the multi-resonance plate simultaneously also include the power supply. This makes it very flexible Operation of the multi-resonance plates achieved.
- Is there a further interface according to claim 9, for networking between several multi-resonance plates and / or for reception and Forwarding of command inputs carried out in dialog can for example, communication with the via a second interface Power amplifier or a multimedia center. Because of Flexibility should be wireless communication, such as infrared technology his.
- a multi-resonance plate 10 is shown in side section, wherein from the true dimensions of such a presentation Multiresonance plate 10 are not shown.
- this multi-resonance plate 10 is also one Core layer 11 and two cover layers 12.1 and 12.2 formed by those Surfaces of the core layer 11, which have the largest surface area, are connected to the cover layers 12.1, 12.2.
- Multi-resonance plate 10 at least one driver 13 in connection, which the Multiresonance plate 10 vibrated.
- the driver shown in Fig. 1 13 has been given as an example, so that of its design and Positioning no restrictions.
- the multi-resonance plate 10 is at a lateral distance from the Narrow sides 14 of the core layer 11 surrounded by a frame 15, so that an air volume 16 between the narrow sides 14 and the frame 15 remains.
- the multi-resonance plate 10 is suspended in the frame 15.
- the one for this required suspension 17 is present in the present case from the two cover layers 12.1, 12.2 realized by these two cover layers 12.1, 12.2 to Frame 15 guided and connected to it.
- the air volume 16 is hermetically sealed, so that only the outer surfaces of the frame 15 and the cover layers 12.1, 12.2 Are exposed to environmental influences. Since the latter areas with very made simple means resistant to climate or pollutant influences can be, the multi-resonance plates designed according to the invention 10 also largely independent of the others inside the Multiresonance plate 10 arranged components easily even the most difficult Conditions are suspended.
- the suspensions 17 can be under tension when connected to the frame 15.
- the multiresonance plate 10 can be connected as already carried out with another application by the applicant - a particularly good one Bring the bass down.
- the entire driver electronics 18 is in the Air volume 16 housed.
- a power amplifier 18.1 optimized for the driver 13 includes present a filter arrangement 18.2.
- the advantages that come with the mutual adaptation of Driver electronics 18 and driver 13 are already connected. Any misunderstandings that may arise in this context
- a plurality of Drivers 13 can supply.
- the invention can also be modified so that a Power amplifier 18. 1 with the subordinate arrangement of several multi-resonance plates 10 Driver 13 feeds from various multi-resonance plates 10.
- the frame 15 is formed from metal and / or with cooling fins (not shown) is provided for good heat dissipation from the Driver electronics 18 concerned.
- a battery 20 is also integrated in the air volume 16 according to FIG. 1, which has a DC-powered charging electronics.
- This battery 20 has the Task, the driver (s) 13 when requesting excellence with the necessary voltage. Will not be top performances requested, the state of charge of the battery 20 is checked and, if necessary, a Reloading causes. The latter can be realized, for example, that Entry of a low level to charge the battery 20 an automatic Volume reduction with dynamic compression is activated. If the battery is 20 provided with a capacitor connected in parallel (not shown), a particularly low-distortion playback of rare pulse events ensured.
- the electronics connected to the battery 20 be modified so that if the external DC power source fails (not shown) the sound reproduction by means of the battery 20 can still be ensured. The latter is particularly important for securing escape routes This is important because important announcements are still possible.
- FIG. 2 the frame 15 of a multi-resonance plate 10 according to FIG. 1 is enlarged shown.
- This multi-resonance plate 10 not only has in the air volume 16 a power amplifier 18.1 and a battery 20, but also a first and one second interface 21.1 and 21.2 on The supply of sound signals takes place via the first interface 21.1 by connecting the interface 21.1 with the plug 22 of the cable harness 19 is connected. If this interface 21.1 is only intended for the supply of sound signals, the shown Interface / connector combination for example as a fiber or Bus connection. But also a conventional connection via Speaker sockets and speaker plugs would be possible. Most notably It is advantageous to design the interface / plug combination as Bus connection, because in this case not only the sound signals, but also the power supply can take place.
- the second interface 21.2 is designed as an infrared sensor.
- the second interface 21.2 for networking between several Multiresonance plates 10 and / or forwarding of dialogues Command entries can be used. If the second interface 21.2 for example as a reception sensor of a wireless operator Transmission arrangement can be equipped by this Interface 21.2 user-activated and for example with a remote control triggered commands received and to the power amplifier 18.1 or to a the first-bus-compatible interface 21.1 connected multimedia center (not shown).
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
- Electrophonic Musical Instruments (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Building Environments (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843079A DE19843079A1 (de) | 1998-09-19 | 1998-09-19 | Multiresonanzplatte |
| DE19843079 | 1998-09-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0987922A2 true EP0987922A2 (fr) | 2000-03-22 |
| EP0987922A3 EP0987922A3 (fr) | 2006-12-06 |
| EP0987922B1 EP0987922B1 (fr) | 2007-09-12 |
Family
ID=7881602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99114408A Expired - Lifetime EP0987922B1 (fr) | 1998-09-19 | 1999-07-22 | Panneau multirésonnant |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6748090B1 (fr) |
| EP (1) | EP0987922B1 (fr) |
| AT (1) | ATE373400T1 (fr) |
| DE (2) | DE19843079A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE524284C2 (sv) * | 2002-04-18 | 2004-07-20 | A2 Acoustics Ab | Anordning för att driva ett membran inrättat i en öppning till ett utrymme samt fordon innefattande en anordning för att driva ett membran inrättat i en öppning hos fordonet |
| US20080080734A1 (en) * | 2006-10-03 | 2008-04-03 | Forth Robert A | Sports audio player and two-way voice/data communication device |
| DE102012025313B3 (de) * | 2012-12-22 | 2014-02-20 | Audi Ag | Schallwandler zur Wandlung elektrischer Signale in Luftschall |
| MY201278A (en) | 2015-09-14 | 2024-02-14 | Wing Acoustics Ltd | Improvements in or relating to audio transducers |
| US11166100B2 (en) | 2017-03-15 | 2021-11-02 | Wing Acoustics Limited | Bass optimization for audio systems and devices |
| WO2018172944A1 (fr) | 2017-03-22 | 2018-09-27 | Wing Acoustics Limited | Systèmes, procédés et dispositifs se rapportant à des charnières et à des transducteurs audio |
| US10848857B2 (en) * | 2018-12-05 | 2020-11-24 | Oda, Inc. | Speaker |
| CN209767821U (zh) * | 2019-06-20 | 2019-12-10 | 苏州上声电子股份有限公司 | 一种多路输入驱动的扬声器 |
| CN210053564U (zh) | 2019-07-02 | 2020-02-11 | 苏州茹声电子有限公司 | 多路输入驱动的扬声器 |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2063945A (en) | 1933-08-02 | 1936-12-15 | Pierce George Washington | Diaphragm and method |
| US3247925A (en) * | 1962-03-08 | 1966-04-26 | Lord Corp | Loudspeaker |
| DE2112516B1 (de) * | 1971-03-16 | 1972-10-19 | Kurtze Guenther Dipl Phys Prof | Richtlautsprecher |
| NL7308103A (fr) * | 1973-06-12 | 1974-12-16 | ||
| JPS5748153Y2 (fr) * | 1977-11-26 | 1982-10-22 | ||
| US4352961A (en) * | 1979-06-15 | 1982-10-05 | Hitachi, Ltd. | Transparent flat panel piezoelectric speaker |
| US4625328A (en) * | 1983-06-13 | 1986-11-25 | Konutra Industries, Ltd. | Integrated amplifier and speaker system with improved cooling efficiency |
| US5031222A (en) * | 1988-07-22 | 1991-07-09 | Murata Manufacturing Co., Ltd. | Piezoelectric speaker |
| 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 |
| JPH08186893A (ja) * | 1994-12-28 | 1996-07-16 | Kenwood Corp | スピーカとその製造方法 |
| US5533132A (en) * | 1995-01-23 | 1996-07-02 | Jbl Incorporated | Loudspeaker thermal management structure |
| UA51671C2 (uk) | 1995-09-02 | 2002-12-16 | Нью Транзд'Юсез Лімітед | Акустичний пристрій |
| PL325246A1 (en) * | 1995-09-02 | 1998-07-06 | New Transducers Ltd | Inertial vibration transducer |
| GB2305809B (en) | 1995-09-28 | 1997-11-05 | Harman Int Ind | Power amplifier and loudspeaker frame integration |
| US5702230A (en) * | 1996-01-29 | 1997-12-30 | General Electric Company | Actively controlled acoustic treatment panel |
| AU7303898A (en) * | 1996-11-19 | 1998-06-10 | Stephen I. Mctaggart | Laminated sheet product containing a printed battery |
| GB2319923B (en) * | 1996-11-27 | 2000-09-27 | Sony Uk Ltd | Loudspeaker |
| US6243472B1 (en) * | 1997-09-17 | 2001-06-05 | Frank Albert Bilan | Fully integrated amplified loudspeaker |
| DE19757097B4 (de) | 1997-12-20 | 2004-04-15 | Harman Audio Electronic Systems Gmbh | Schallwiedergabeanordnung |
| DE19757099A1 (de) | 1997-12-20 | 1999-06-24 | Nokia Deutschland Gmbh | Kontaktierung für eine Schallwiedergabeanordnung nach dem Biegewellenprinzip |
| DE19757098C2 (de) * | 1997-12-20 | 2003-01-09 | Harman Audio Electronic Sys | Aufhängung für Schallwiedergabeanordnungen nach dem Biegewellenprinzip |
| JPH11275678A (ja) * | 1998-03-25 | 1999-10-08 | Sony Corp | スピーカ装置 |
| DE19821861A1 (de) | 1998-05-15 | 1999-11-18 | Nokia Deutschland Gmbh | Vorrichtung zur dynamischen Anregung von Plattenlautsprechern |
| DE19821860A1 (de) | 1998-05-15 | 1999-11-18 | Nokia Deutschland Gmbh | Treiber für flaches Klangpaneel |
| DE19821624A1 (de) | 1998-05-15 | 1999-11-18 | Nokia Deutschland Gmbh | Projektionswand |
| DE19840375C2 (de) | 1998-09-04 | 2003-08-28 | Harman Audio Electronic Sys | Schallwand |
| DE10001410C2 (de) | 2000-01-14 | 2001-12-06 | Harman Audio Electronic Sys | Flachlautsprecheranordnung |
| DE10025460B4 (de) | 2000-05-23 | 2004-03-18 | Harman Audio Electronic Systems Gmbh | Hochtonlautsprecher |
| US6386315B1 (en) * | 2000-07-28 | 2002-05-14 | Awi Licensing Company | Flat panel sound radiator and assembly system |
-
1998
- 1998-09-19 DE DE19843079A patent/DE19843079A1/de not_active Ceased
-
1999
- 1999-07-22 DE DE59914497T patent/DE59914497D1/de not_active Expired - Lifetime
- 1999-07-22 EP EP99114408A patent/EP0987922B1/fr not_active Expired - Lifetime
- 1999-07-22 AT AT99114408T patent/ATE373400T1/de not_active IP Right Cessation
- 1999-09-14 US US09/395,575 patent/US6748090B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE19843079A1 (de) | 2000-03-23 |
| EP0987922B1 (fr) | 2007-09-12 |
| US6748090B1 (en) | 2004-06-08 |
| EP0987922A3 (fr) | 2006-12-06 |
| ATE373400T1 (de) | 2007-09-15 |
| DE59914497D1 (de) | 2007-10-25 |
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