CN1195461A - Display screens incorporating loudspeakers - Google Patents
Display screens incorporating loudspeakers Download PDFInfo
- Publication number
- CN1195461A CN1195461A CN96196705A CN96196705A CN1195461A CN 1195461 A CN1195461 A CN 1195461A CN 96196705 A CN96196705 A CN 96196705A CN 96196705 A CN96196705 A CN 96196705A CN 1195461 A CN1195461 A CN 1195461A
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- China
- Prior art keywords
- screen
- display screen
- loud speaker
- screen board
- sound
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/029—Diaphragms comprising fibres
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Projection Apparatus (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
A display screen (32), e.g. a projection screen comprising a panel having a light reflective surface, characterised in that the screen is a distributed mode acoustic radiator loudspeaker having a transducer (9) mounted wholly and exclusively thereon to vibrate the radiator to cause it to resonate to provide an acoustic output.
Description
Technical field
The present invention relates to display screen, particularly (and not being) relates to projection screen.
Background technology
Proposed a kind of screen board formula loud speaker in GB-A-2262861, it comprises:
A resonance multi-mode radiator element, it is a unit interlayer screen board of being made and had the spacer core of horizontal loose structure by two skin-materials, wherein screen board is such, and its bending strength (B) on all directions is at least 10 with respect to the ratio of cube (μ) of the screen board quality of per unit surface area;
An erecting device, it is supported this screen board or in a kind of free undamped mode one support body frame is connected on this screen board;
And an electromechanical drive unit of linking on this screen board, it is used for responding the electricity input of speaker operation frequency band with excitation multi-mode resonance in the radiation screen board.
Open explanation of the present invention
The member that embodiments of the invention use its characteristic, structure and configuration can be usually and/or distinguishingly obtain by our instruction of international application (we case number P.5711) of pending trial of fulfiling same period therewith.This type of member has such ability: the horizontal expansion of thickness usually (but needn't) keep by bending wave in the operating area at member edge and propagate the vibrational energy of importing; Have or do not have the anisotropy of bending strength, resonant vibrating mass is distributed in the described zone to be of value to the coupling of sound with surrounding air; And in described zone, have predetermined optimum position or place, this position or place are used for transducer apparatus, its effective active or moving parts particularly, this part for the acoustic vibration activity in the described zone and corresponding to such vibration activity sound content signal, normally the signal of telecommunication is effective.In the international application of same period therewith of pending trial (we case number P.5711), disclose such member as or " passive " acoustic device at no transducer apparatus in application, such as being used for reverberation or being used for the sound filtration or being used for acoustic device to a spatial sound " adjustment " (" voicing "); And conduct or the application in having " active " acoustic device of transducer apparatus, such as being used for when the input signal that is converted into described sound is provided sound source or loud speaker quite on a large scale, or be used for such as when being exposed to the microphone that to be converted under the sound of other signal.
The present invention then is particularly related to and has for example display screen of the acoustic device of loud speaker.
Here we are referred to as the distributed acoustic radiator to above-mentioned parts, and are intended as above-mentioned PCT application and/or in this feature that provides especially.
The present invention is a kind of display screen, it comprises a screen board with light reflection or light emission surface, be characterized in that this piece screen itself is a distributed acoustic radiation loud speaker, have integral body and transducer mounted thereto by oneself, with the vibration radiation device, export with generation sound and make it resonance.Radiator comprises a rigidity light plate, and it has the cellular sandwich layer that is clipped between a pair of high-modulus top layer; One around framework; And one be installed in resilient suspension on the framework to screen board.The cellular sandwich layer can have the alveolate texture of aluminium foil.The top layer can be made of fibre reinforced plastics.
Projection screen comprises the panel-form loudspeakers that is attached to screen sides, so that left and right sides bilateral channel information to be provided.Left and right sides bilateral loud speaker can be hinged on the radiator, can pack up with respect to radiator is folding when collecting.
Left and right sides loud speaker also preferably adopts the distributed acoustic radiator, and each radiator all has integrally and thereon transducer of dress by oneself, with the vibration radiation device and make it to produce resonance.Display screen can be a for example film self-luminous screen of projection screen or electronic display curtain.
From another angle, the present invention also is a kind of sound equipment visual device, it is characterized in that it being above-mentioned projection screen.The sound equipment visual device comprises the loud speaker of at least one back channel, and its form also is a distributed acoustic radiator that has an integral body and adorn transducer thereon by oneself, and transducer makes it resonance in order to the vibration radiation device.
Brief description
The present invention is by means of example, and engages accompanying drawing, in addition graphic extension, wherein:
Fig. 1 sets forth in the international application (we case number for P.5711) of the pending trial same period and the sketch of claimed distributed mode speaker;
Fig. 2 a is by the partial sectional view of A-A line among Fig. 1;
Fig. 2 b is the enlarged drawing of the broken section of the distributed radiator of this class shown in Fig. 2 a, has shown two kinds of interchangeable structures among the figure;
Fig. 3 is the perspective view according to projection screen embodiment of the present invention;
Fig. 4 is the fragmentary detail view of Fig. 3 screen;
Fig. 5 is the vertical view that has the room of Fig. 3 projection screen.
Realize best way of the present invention
With reference to the Fig. 1 in the accompanying drawing; shown an illustrated and claimed screen board formula loud speaker 81 in our international application (we case number P.5711) of common pending trial of same period therewith; it comprises the rectangular frame 1 that has resilient suspension 3, and described suspension a distributed acoustic radiation screen board 2 around its interior Zhou Zhicheng.Such as the transducer 9 that describes in detail in our international application (we case number P.5683/4/5) of pending trial with reference to same period therewith, intactly and by oneself be installed on the screen board 2 or the interior preset bearing that limits by x and y on, the position in its orientation is by the calculating of explanation in our international application (we case number P.5711) of pending trial of same period therewith,, in screen board, screen board is resonated launch output with the emission bending wave.
Fig. 2 a and 2b are the local typical cutaway views of the loud speaker 81 of Fig. 1.Fig. 2 a has shown that framework 1, surround 3 and screen board 2 cemented joint 20 by separately links together.The suitable frame material comprises lightweight frame, for example by the frame frame of making such as the extrusion metal or the plastics of aluminium alloy.Suitable comprise elastomeric material such as foam rubber and foamed plastics around material.The viscose glue of suitable joint 20 comprises viscose glues such as epoxy, polypropylene and cyanogen propylene.
Fig. 2 b has illustrated that on the ratio of amplifying screen board 2 is rigidity light screen boards that have such as the made sandwich layer 22 of rigidity plastics foam 97, this rigidity plastics foam for example is the porous matrix 98 that interlinkage polyvinyl chloride or metal forming, plastics or analog are made, its hole extends transverse to the screen board plane, and by being enclosed such as the top layer 21 of the made opposition of paper, card, plastics or metal forming or thin plate.When its mesexine is made of plastics, can strengthen to improve their modulus in a kind of mode of knowing by using such as carbon, glass, kevlar (RTM) or similar fiber.
Ostensible skin-material and reinforce comprise paper, bonding ply of paper, melamine glue and such as polyester film, kapton, polyvinyl chloride, phenol, polyester or relevant plastics, fibre reinforced plastics etc. and sheet metal or paper tinsel, comprise that again carbon, glass, kevlar (RTM), Nomex (RTM) are the fiber of various twisting thread (lays) such as aromatic polyamide and textile-like.Investigation to the Vectra level of liquid crystal polymer thermoplastic shows that they are useful for injection moulding such as the ultra-thin property top layer below the diameter 30cm or the top layer of smaller szie.This material self has formed the crystal structure of an orientation on the direction of spraying, this orientation is that high-frequency energy is propagated into screen board preferential direction on every side well from drive point.
Additional this and injection moulding other thermoplastic makes injection mold have location and alignment feature such as groove or ring, in order to the transducer element of accurate location such as motor coil and magnet suspension.For some more weak core material, it is calculated that in addition, increase the vibrational energy that helps strengthening that piece zone and enter the coupling of screen board such as local skin depth in 150% zone that reaches transducer diameter or the annular.The high-frequency response will be improved by this method for softer foamed material.
Disclosed core material had both comprised foamed plastic or foamed plastics or paper pulp material, suitable even low-density aerosol metal, the cellular or corrugated aluminium alloy sheet or the paper tinsel that comprise manufacturing again, or Kevlar (RTM), Nomex (RTM), common or bonding paper, and various synthetic plastic films.Some suitable core materials have been showed its spontaneous top layer useful in its manufacture process effectively and/or have been had natural enough intensity to be used to not have the top layer interlayer of laminate patch.Known a kind of high performance its trade mark of cellular core material is called ' Rohacell ', and it can be used as the radiation screen board and does not have the top layer.From the aspect of reality, its objective is that acquisition is suitable for the fineness and the intensity of the integral body of special purposes, comprise that particularly the best of core and top layer layer is formed and the conduction between them.
Some optimization formulas that are used for screen board use metal and metal alloy top layer, maybe can be for being the carbon fiber reinforce.All these, and the design of alloy aerosol or metal porous shape core, actual radio shielding feature all will be arranged, this feature is important in some EMC use.Common screen board or cone loudspeaker do not have intrinsic EMC screening ability.
In addition, the preferred dynamic transducer of piezoelectricity has insignificant electromagnetic radiation or stray field.Common loud speaker has a big magnetic field, if do not adopt special indemnifying measure will reach 1 meter distance.
The position that need to keep shielding in application can or can be used a kind of conductivity foam when the mounting edge or similar connector for electrical connector of conduction portion manufacturing of suitable DML screen board.
Effectively describedly select damping to comprise special application to the light sheet material of screen board and permanent connected device.Edge and angle are significant especially to low frequency modes main and its screen board dispensed in small quantity.The edge of damping device is fixed with to be beneficial to and produces the screen board that its described light sheet material installs framework fully, although its angle may be often relatively free, such as for the required stretching, extension of low frequency operation.Attachment can be with viscose glue or self adhesive material.The damping form that other is useful aspect meticulousr effect and/or intermediate frequency and high frequency, can or be secured to the material of being scheduled in the above zone of light sheet material on the effectively central local location by suitable material especially.
It is two-way resembling top illustrated sound-screen plate.The acoustic energy that sends from behind is not in very strong phase place with respect to the acoustic energy that sends previously.The result be help that acoustical power whole in this room add up, the minimizing of distribution, reflection and the standing wave effect of equifrequent acoustic energy and help that high-quality ground reproduces place and environment in the acoustical reproduction record.
Although the radiation of sending from the sound-screen plate mainly is unoriented, the percentage axle of the phase place relevant with information increases outward.Because the focus after the improvement of imaginary stereo image, the orientation of loud speaker are the same with picture, on the height when usually the people is upright, thereby provide the axle exterior orientation of favourable appropriateness, the stereoeffect of the best is provided for the audience who is seated usually.Equally, a triangle left side/right geometric figure with respect to the audience provides another angle component.The good stereo acquisition that comes to this.
Compare with common loudspeaker reproduction, the present invention also has the advantage at a group audience.The inherent propagation characteristic of sound-screen plate acoustic radiating has given its volume of not observing the square distance law of reciprocity of identical point source.Because the intensity that reduces with distance is much smaller than the intensity of being predicted by inverse square law, the result is for off-center and the bad hearer in position, and the screen board loud speaker is compared its intensity field with common loud speaker and promoted a better stereophonic effect.This is because off-centered hearer can't suffer dual problem owing near the loud speaker approaching: at first near the loudness of loud speaker increases greatly, and the loudness of loud speaker far away then is corresponding to be reduced.
Screen board formula loud speaker flat, lightweight also has advantage, and it is visually attractive, has good sound quality and only needs a transducer and the gamut sound that sends from each screen board film does not have overlapping.
Fig. 3 shows a kind of multimedia audiovisual system, and it comprises the mobile image projector 31 of an image projecting to the projection screen, and projection screen then is made of Fig. 1 and that class loud speaker screen board 32 shown in Figure 2.
Loud speaker/projection screen 32 comprises a screen board 2, and it has aluminium or carbon fiber is strengthened top layer 21, clips the cellular sandwich layer 22 of an aluminium foil between the top layer.These composite materials can be bonded together securely with any epoxy resin adhesive.For a screen board that is of a size of 1.22 * 1.38 meters, the thickness on aluminium matter top layer is 300 microns.The thickness of sandwich layer is 11 millimeters and the hole of honeycomb is of a size of 9.5 millimeters.This screen board is very hard, low-density, high-modulus and isotropic.
The left and right sides at center channel loud speaker screen board 32 can also be by the hinge 34 hinged a pair of less additional loudspeakers 114 as that class that Fig. 1 and Fig. 2 introduced, therefore, auxiliary screen board of time spent can not rotate with respect to main screen plate 32, then is opened to as figure the position during use.Auxiliary screen board 114 for example is used for stereosonic operation in order to receive and radiation left and right sides channel information separately.
The reproduction of the stereo sound of two-way has just comprised the generation of sound level illusion, and the generation of illusion comprises sound source position, characteristics such as the distance configuration of original recording and its atmosphere.The stereo of traditional loud speaker is more intense in illusion sound source position and the far and near configuration of the sound aspect some, but just shows deficiency in the expression of place and atmosphere.This is because the near point sound source characteristic of piston type loud speaker commonly used makes it be easy to just can distinguish out with the sense of hearing their physical location, and the needs of this and whole stereophonic sound image position are contradictory.
Often speaking of loud speaker as transcriber should disappear and hide in sound level illusion.Subproblem just be the loud speaker used always to previous irradiation directionality relative narrower.In addition, the outside of balance box and the sound of rear side, the sound of reverberant field just loses former sound and balance in the strong drive chamber along with the marked change of frequency response.These all impair the sensation of natural phonation space and atmosphere.
Used the sound-screen plate loud speaker of a pair of left and right sides channel among the embodiment of Fig. 3, it can be provided with complex vibration on the whole panel in 100 hertz to 20 kilo hertzs specific very wide frequency ranges.
Main loudspeaker screen board 32 hangs on the suspension arrangement 33 as shown in the figure, also can replace certainly screen board is bearing on the floor stand.
What Fig. 5 showed is that projection arrangement of the present invention is how to arrange in room 145 with seat seat 146.Device comprises one with the projecting apparatus 31 of image projection to the screen 32; The auxiliary woofer 35 that also comprises a pair of traditional structure divides to be listed in indoor both sides to improve bass intensity; And a pair of back effect loud speaker 117 is also referred to as circulating loudspeaker and lists in indoor rear wall.From they broad and uniform volume dispersing characteristics, Fig. 1 and the also suitable back loud speaker of doing of this class shown in Figure 2.Back effect loud speaker can adopt same structure with additional loudspeaker 114.
Has significant non-directivity characteristic according to Fig. 1 and panel-form loudspeakers shown in Figure 2.For the Sound reproducing of sound system around channel, energy must be to distribute widely, and ideally from the non-directional source.Sound source is not to want this point of fine location very important, otherwise the sensation of very big ambient (at audience's simulation voice range after one's death) just can not satisfy.
Direction-sense and DYN dynamic small volume loud speaker commonly used can be used as around reproduction.Because the strength phenomena of the sense of hearing.Near the audience who is sitting in the circulating loudspeaker can find that their sensation is influenced by the orientation of loud speaker consumingly, greatly damage around effect and the appreciation to the multichannel sound field of their integral body.Directionality be so strong so that its with can increase Haas effect one near light source orientation and work hearing is drawn away from the audio frequency road on main foreground.
Have the sending a powerful sound field or have the approximate equalization intensity of quite weak directivity of one or more loud speakers according to what Fig. 1 and Fig. 2 constituted around playback system.For a large amount of audiences, even some can not feel the tangible directionality of any instant reproduction channel near audience of screen board loud speaker (closely reaching 0.5 meter) yet, and do not damage important before the sense of hearing of channel.Say on the whole because the result of the radiation characteristic of desirable sound-screen plate loud speaker has realized the significant improvement effect of multichannel Sound reproducing system.
Circulating loudspeaker also can hang on the rope if desired, or is added on the screen board 2 with suitable image and pretends to form picture.
Fig. 4 has shown that the Supreme Being has the framework 1 of the projection/loud speaker screen board on inflection limit 36 is how to constitute to hide suspension 3.Additional loudspeaker 114 also can constitute by the same manner with the framework of circulating loudspeaker 117.
Commercial Application
Have certain size and can be used as still, the sound-screen plate of the projection screen of film and video image also together The time be can be used as family's movie theatre center channel or the dialogue channel loudspeaker. Preferred dimensions of the present invention (can reach 0.6 rice is wide) the sound-screen plate audience's coverage rate of very good sound is provided uniquely. Work performance is said Bright have very high sound articulation in whole audience zone, even major advantage is screen The audience can not feel that excessively near the impact of sound level, a kind of constant traditional direct radiation taper is raised yet The distinguished and admirable sound of sound device.
Projection screen of the present invention also has second also to be unique characteristics. Raise one's voice for traditional center channel As if device, people's ear are to be easy to be positioned the loudspeaker acoustic centre of source, and all sound all come from this and concentrate Little sound source in, damaged real sensation. But for the sound-screen plate, the astaticism of its uniqueness Radiation characteristic means that sound is from the territory, widely sound area of screen rather than from an isolated point. Work as figure Picture has more increased strong synchronous effect when the acoustic phase on the screen board is combined. Here required specific The position that the disappearance of auditory localization is felt ear/brain will to occur with the visual image on sound-screen plate surface with Illusory, the actual or approximate sound position independent assortment in step and the resultant effect that forms.
For the dialogue part of good record, not only audiovideo can be followed the tracks of visual image, but also can To propagate the needed information of feeling for the degree of depth and distance. As place oneself in the midst of the sense of hearing of the audience in the movie theatre Quality has also obtained reinforcement widely.
Claims (12)
1. one kind comprises a display screen with screen board of light reflection or light emission surface, it is characterized in that, screen is the loud speaker of a distributed acoustic radiator, has integral body and transducer mounted thereto by oneself with the vibration radiation device, makes it to cause that resonance is to provide sound output.
2. display screen according to claim 1 is characterized in that, radiator comprises a rigidity light screen board, and described screen board has the cellular sandwich layer that is clipped between a pair of high-modulus top layer.
3. display screen according to claim 2 is characterized in that, a framework around screen board.
4. display screen according to claim 3 is characterized in that, one is installed in resilient suspension in the framework with screen board.
5. according to any one described display screen of claim 2 to 4, it is characterized in that cellular cores is made of cellular aluminium foil.
6. according to any one described display screen of claim 2 to 5, it is characterized in that the top layer is to be made of fibre reinforced plastics.
7. according to the described display screen of above any one claim, it is characterized in that, be attached to the display screen both sides so that left and right sides channel information to be provided with panel-form loudspeakers.
8. display screen according to claim 7 is characterized in that the left and right sides loud speaker is hinged on the framework, can be folding so that deposit with respect to radiator.
9. according to claim 7 or 8 described display screens, it is characterized in that the left and right sides loud speaker is the distributed acoustic radiator, all have a whole and transducer mounted thereto by oneself, cause its resonance with the vibration radiation device.
10. according to the described display screen of above any one claim, it is characterized in that screen is a kind of projection screen.
11. a sound equipment visual device is characterized in that, is as the described projection screen of above any one claim.
12. sound equipment visual device according to claim 11 is characterized in that, the back channel loud speaker of at least one distributed tones radiator, and it has a whole and transducer mounted thereto by oneself, makes it resonance with the vibration radiation device.
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 | ||
| GBGB9522281.6A GB9522281D0 (en) | 1995-10-31 | 1995-10-31 | Acoustic device |
| GB9522281.6 | 1995-10-31 | ||
| GB9606836.6 | 1996-03-30 | ||
| GBGB9606836.6A GB9606836D0 (en) | 1996-03-30 | 1996-03-30 | Acoustic device |
| PCT/GB1996/002137 WO1997009853A2 (en) | 1995-09-02 | 1996-09-02 | Display screens incorporating loudspeakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1195461A true CN1195461A (en) | 1998-10-07 |
Family
ID=34865232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96196705A Pending CN1195461A (en) | 1995-09-02 | 1996-09-02 | Display screens incorporating loudspeakers |
Country Status (21)
| Country | Link |
|---|---|
| EP (1) | EP0847670B1 (en) |
| JP (1) | JPH11512245A (en) |
| CN (1) | CN1195461A (en) |
| AT (1) | ATE177579T1 (en) |
| AU (1) | AU702865B2 (en) |
| BR (1) | BR9610553A (en) |
| CA (1) | CA2234944A1 (en) |
| CZ (1) | CZ58598A3 (en) |
| DE (1) | DE69601729T2 (en) |
| DK (1) | DK0847670T3 (en) |
| EA (1) | EA000619B1 (en) |
| ES (1) | ES2130845T3 (en) |
| HK (1) | HK1008646A1 (en) |
| HU (1) | HUP9901396A3 (en) |
| IL (1) | IL123486A (en) |
| NZ (1) | NZ316543A (en) |
| PL (1) | PL325235A1 (en) |
| RO (1) | RO119050B1 (en) |
| SK (1) | SK26698A3 (en) |
| TR (1) | TR199800362T1 (en) |
| WO (1) | WO1997009853A2 (en) |
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| CN1771755B (en) * | 2003-04-11 | 2010-05-26 | 皮埃尔·樊尚 | System for the projection of cinematographic works or digital works with sound |
| CN102656513A (en) * | 2009-11-13 | 2012-09-05 | 辛诺普蒂克斯照明电气设备有限公司 | System and method for modulating and displaying optical effects |
| CN104698731A (en) * | 2013-12-04 | 2015-06-10 | 深圳市云立方信息科技有限公司 | Projection curtain with sound amplification function |
| CN105872862A (en) * | 2015-01-23 | 2016-08-17 | 冠捷投资有限公司 | Display with externally-arranged loudspeaker |
| CN106773505A (en) * | 2016-12-16 | 2017-05-31 | 新乡医学院 | A kind of high-gain moulds projection screen in vain |
| CN107561842A (en) * | 2017-10-17 | 2018-01-09 | 欧阳卫 | A kind of sound picture integrated form projection screen |
| CN108462917A (en) * | 2018-03-30 | 2018-08-28 | 四川长虹电器股份有限公司 | Electromagnetic excitation energy converter and laser projection optics sound equipment screen and its synchronous display method |
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| DE19821624A1 (en) | 1998-05-15 | 1999-11-18 | Nokia Deutschland Gmbh | Projection screen with sound radiating segments |
| CA2336072A1 (en) | 1998-06-22 | 1999-12-29 | Slab Technology Limited | Loudspeakers |
| DE19840375C2 (en) * | 1998-09-04 | 2003-08-28 | Harman Audio Electronic Sys | baffle |
| US6304435B1 (en) | 1998-11-12 | 2001-10-16 | Acer Incorporated | Laptop computer with flat panel speakers |
| US6911901B2 (en) | 2000-12-20 | 2005-06-28 | New Transducers Limited | Multi-functional vibro-acoustic device |
| DE20114680U1 (en) * | 2001-09-06 | 2003-01-16 | G + B pronova GmbH, 51427 Bergisch Gladbach | Projection screen for moving or still pictures, comprises glass pane with sound generator forming glass loudspeaker |
| DE102004032223A1 (en) * | 2004-07-02 | 2006-01-19 | Siemens Ag | Audiovisual arrangement |
| 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 |
| US8284955B2 (en) | 2006-02-07 | 2012-10-09 | Bongiovi Acoustics Llc | System and method for digital signal processing |
| DE102005027389A1 (en) * | 2005-05-03 | 2006-11-09 | Puren Gmbh | The image projection device |
| DE102005058175A1 (en) * | 2005-12-05 | 2007-06-06 | Volkswagen Ag | Speaker arrangement for sound in a motor vehicle |
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- 1996-09-02 DK DK96929386T patent/DK0847670T3/en active
- 1996-09-02 WO PCT/GB1996/002137 patent/WO1997009853A2/en not_active Application Discontinuation
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- 1996-09-02 RO RO98-00497A patent/RO119050B1/en unknown
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- 1996-09-02 EA EA199800260A patent/EA000619B1/en not_active IP Right Cessation
- 1996-09-02 AU AU68801/96A patent/AU702865B2/en not_active Ceased
- 1996-09-02 PL PL96325235A patent/PL325235A1/en unknown
- 1996-09-02 DE DE69601729T patent/DE69601729T2/en not_active Expired - Lifetime
- 1996-09-02 CA CA002234944A patent/CA2234944A1/en not_active Abandoned
- 1996-09-02 HU HU9901396A patent/HUP9901396A3/en unknown
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| CN1771755B (en) * | 2003-04-11 | 2010-05-26 | 皮埃尔·樊尚 | System for the projection of cinematographic works or digital works with sound |
| US10191551B2 (en) | 2008-08-08 | 2019-01-29 | Nvf Tech Ltd | Touch sensitive device |
| CN102656513A (en) * | 2009-11-13 | 2012-09-05 | 辛诺普蒂克斯照明电气设备有限公司 | System and method for modulating and displaying optical effects |
| US8817372B2 (en) | 2009-11-13 | 2014-08-26 | Kommanditgesellschaft Synoptrix Lichttechnik Gmbh & Co. | System and method for modulating and displaying optical effects |
| CN102656513B (en) * | 2009-11-13 | 2016-01-27 | 辛诺普蒂克斯照明电气设备有限公司 | For modulating the system and method with display optical effect |
| CN104698731A (en) * | 2013-12-04 | 2015-06-10 | 深圳市云立方信息科技有限公司 | Projection curtain with sound amplification function |
| CN105872862A (en) * | 2015-01-23 | 2016-08-17 | 冠捷投资有限公司 | Display with externally-arranged loudspeaker |
| CN106773505A (en) * | 2016-12-16 | 2017-05-31 | 新乡医学院 | A kind of high-gain moulds projection screen in vain |
| CN106773505B (en) * | 2016-12-16 | 2018-05-22 | 新乡医学院 | A kind of high-gain moulds projection screen in vain |
| CN107561842A (en) * | 2017-10-17 | 2018-01-09 | 欧阳卫 | A kind of sound picture integrated form projection screen |
| CN107561842B (en) * | 2017-10-17 | 2024-03-08 | 江苏久誉显示科技有限公司 | Sound-picture integrated projection screen |
| CN108462917A (en) * | 2018-03-30 | 2018-08-28 | 四川长虹电器股份有限公司 | Electromagnetic excitation energy converter and laser projection optics sound equipment screen and its synchronous display method |
Also Published As
| Publication number | Publication date |
|---|---|
| HUP9901396A2 (en) | 1999-08-30 |
| CZ58598A3 (en) | 1998-08-12 |
| WO1997009853A2 (en) | 1997-03-13 |
| DE69601729T2 (en) | 1999-09-16 |
| RO119050B1 (en) | 2004-02-27 |
| JPH11512245A (en) | 1999-10-19 |
| NZ316543A (en) | 1998-10-28 |
| EP0847670B1 (en) | 1999-03-10 |
| WO1997009853A3 (en) | 1997-04-03 |
| SK26698A3 (en) | 1998-09-09 |
| DE69601729D1 (en) | 1999-04-15 |
| EP0847670A1 (en) | 1998-06-17 |
| BR9610553A (en) | 1999-12-21 |
| ATE177579T1 (en) | 1999-03-15 |
| DK0847670T3 (en) | 1999-09-27 |
| HUP9901396A3 (en) | 2002-02-28 |
| ES2130845T3 (en) | 1999-07-01 |
| AU6880196A (en) | 1997-03-27 |
| CA2234944A1 (en) | 1997-03-13 |
| IL123486A (en) | 2000-10-31 |
| EA000619B1 (en) | 1999-12-29 |
| EA199800260A1 (en) | 1998-08-27 |
| PL325235A1 (en) | 1998-07-06 |
| HK1008646A1 (en) | 1999-05-14 |
| AU702865B2 (en) | 1999-03-11 |
| IL123486A0 (en) | 1998-09-24 |
| TR199800362T1 (en) | 1998-05-21 |
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