CN1195456A - Notice board with loudspeakers - Google Patents
Notice board with loudspeakers Download PDFInfo
- Publication number
- CN1195456A CN1195456A CN96196701A CN96196701A CN1195456A CN 1195456 A CN1195456 A CN 1195456A CN 96196701 A CN96196701 A CN 96196701A CN 96196701 A CN96196701 A CN 96196701A CN 1195456 A CN1195456 A CN 1195456A
- Authority
- CN
- China
- Prior art keywords
- board
- screen board
- display device
- visible display
- transducer
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
-
- 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
- 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
-
- 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
Abstract
Visual display apparatus comprising a notice or the like board (48), characterised in that the notice or the like board is a distributed mode acoustic radiator having a transducer (9) mounted wholly and exclusively thereon to vibrate the radiator to cause it to resonate.
Description
Technical field
The present invention relates to bulletin board and similar visible display device thereof.
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 working region 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 be more particularly directed to the visible display device of Supreme Being just like 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 the visible display device that comprises bulletin board etc., it is characterized in that bulletin board etc. is a distributed acoustic radiator, and it has the whole and transducer that is installed on it by oneself, makes it to cause resonance to vibrate this radiator.This display unit is a kind of loud speaker that can strengthen the visual information of demonstration on it.Radiator comprises a rigidity light screen board, and it has a cellular sandwich layer that is clipped between the top layer; One around framework; And one be contained in resilient suspension in the framework with screen board.Framework has an inflection limit with the concealment suspension.The top layer can comprise paper or be made of paper that sandwich layer can be made of the papery alveolate texture.Transducer can be a flexural piezoelectric element.
Brief description
The present invention is by example, with reference to accompanying drawing, and in addition graphic extension, wherein:
Fig. 1 sets forth in the international application (we case number P.5711) at pending trial 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 broken section enlarged drawing 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 of first bulletin board embodiment according to the present invention;
Fig. 4 is the perspective view of second bulletin board embodiment according to the present invention;
Fig. 5 is the partial sectional view of Fig. 3 and bulletin board shown in Figure 4;
Fig. 6 has illustrated a kind of form of transducer.
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.
Disclosed 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.
Sound-screen plate technology in Fig. 1 and Fig. 2 also can be used for usually in the design as the normal board material of notice and display ads, can overslaugh to the processing of these boards, as lamination, screen printing or spraying plating printing.
Board itself also can carry out dimension measurement, accurate processing and motorized motions with the panel speaker of operation as the acoustic radiation screen board of wide scope covering to it.For 0.56 square metre of the following audience's of 10 people little screen board or 30-50 people, the screen board of 0.7-1.2 square metre of size can also can be equipped with background music or relevant acoustics so that the voice reproduction of high definition nature volume to be provided completely if desired.Because the natural propagation acoustic radiation characteristic that screen board has, the distortion effect of local boundary reflection just greatly reduces.Blocking on the actual physics of some part of sound-screen plate does not influence the distribution of sound.
Put down and low electric input power in requisition for bass for given definition/resolution.
In a preferred embodiment, the sound-screen plate comprises cheaply thickness at the cellular or foamed sandwich layer of the paper of 3-6 millimeter and coated with strengthening paper, plastic film or be covered with the plastic film that thickness is the paper top layer of 0.08-0.3 millimeter.In order to have used the transducer of the flush type plane or smooth for the purpose of the economy, preferred transmission is the piezoelectric type vibration coupling structure of working under crooked and mass loading.
These transducers have along with frequency the sound output that improves naturally, this output can be in advance and is adjusted to level and smooth response with respect to the transducer capacitance load best, this adjusting can be by the combination of series impedance transmission, or the mass loading of piezoelectric element is (under certain mass, acceleration and frequency are inversely proportional to), also can reach according to the detailed specification of screen board mechanical property.By control to the fibre loss factor on top layer, the top layer is attached to the viscous-elastic behaviour of bonding agent used on the sandwich layer, piezoelectric element acts on the top layer of interior thin slice being added with the substrate that is included as the demonstration picture and text, and sandwich layer shear with compression on the control of bulk density characteristic etc., just can obtain needed frequency response characteristic.
If consider high tone level and big screen board, the top layer of alloy or alloy part can provide excellent energy to cover on full-screen panel, and has almost the low loss factors of the direct ratio that can be complementary with high power moving-coil type transducer.The latter has the flat region of a frequency response, when the screen board both sides all need smooth and do not interdict surperficial the time, just can adopt concealment flush type transducer therein.If the latter also needs magnetic screen, below the top layer, cover the zone of whole energy transducer with 0.5 millimeter thin soft carbon steel paper tinsel so.Owing to improved the magnetic flux coupling, also obtained the gain on some efficient.
Bulletin board for small low-cost does not just need special framework or damping yet.If be placed on desk or sales counter top, when it stood on these desktops, the base of sound-screen plate simply just contacts with it can provide enough dampings.Device can also have the frame pattern of back of the body supporting, even can also make light card-type.
The rigid foamed plastics of some type, for example implastic PVC material, they also have the corresponding bulk density characteristic that has the top layer of one's own or need not the top layer, and can be used in the theoretical scope of sound-screen plate.At this moment can directly need not other reinforcing top layer as the sound-screen plate of this pattern.
Fig. 3 to Fig. 5 has shown bulletin board, advertisement display board or its similar board 48 that combines with loudspeaker techniques shown in Figure 2 with Fig. 1.The loud speaker 81 that has rigidity light distributed acoustic radiator screen board 2 with this class illustrated in figures 1 and 2 also has pattern-information like this, for example can stamp the image and/or the literal of any needs on screen board 2.Pattern-information can also be strengthened information function by replenishing of aural information by means of loud speaker.
As shown in Figure 3, loud speaker/display board 48 is to be installed in the stand 23 with the easel form.Loud speaker/display board also can replace and be suspended on as shown in Figure 4 on the rope 33.Bulletin board also can for the method for other any needs of usefulness support.
As shown in Figure 5, resilient suspension 3 has been hidden on framework 1 usefulness inflection limit 41, and suspension is connected between the periphery of the back of framework and screen board 2.
Fig. 6 has shown on the dish 118 that is installed in brass for example the transducer 9 on the distributed screen board 2 of being used for crystal dish shape piezo flexure 27 forms, and dish 118 is bonded on the surface of screen board 2 by connecting 20 such as bonding agent.By lead 28 acoustical signal is added on the transducer 9 during work, causes 27 bendings of piezoelectricity dish, and make screen board 2 local elasticities distortion and bending wave is launched in the screen board.
Claims (8)
1. comprise the visible display device of bulletin board or other similar board, it is characterized in that bulletin board or other similar board are distributed acoustic radiators, whole thereon and transducer is installed by oneself, make it resonance with the vibration radiation device.
2. according to the described visible display device of claim 1, it is characterized in that radiator comprises a rigidity light screen board, described screen board has a cellular sandwich layer that is clipped between the two-layer top layer.
3. according to the described visible display device of claim 2, it is characterized in that a framework around screen board.
4. according to the described visible display device of claim 3, it is characterized in that one is installed in resilient suspension in the framework with screen board.
5. according to the described visible display device of claim 4, it is characterized in that framework has the inflection limit with the concealment suspension.
6. according to any one described visible display device in the claim 2 to 5, it is characterized in that the top layer comprises paper.
7. according to any one described visible display device in the claim 2 to 6, it is characterized in that sandwich layer is made of the papery alveolate texture.
8. according to the described visible display device of above any one claim, it is characterized in that transducer is a flexural piezoelectric element.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9517918.0 | 1995-09-02 | ||
| GBGB9517918.0A GB9517918D0 (en) | 1995-09-02 | 1995-09-02 | Acoustic device |
| GBGB9522281.6A GB9522281D0 (en) | 1995-10-31 | 1995-10-31 | Acoustic device |
| GB9522281.6 | 1995-10-31 | ||
| GBGB9606836.6A GB9606836D0 (en) | 1996-03-30 | 1996-03-30 | Acoustic device |
| GB9606836.6 | 1996-03-30 | ||
| PCT/GB1996/002165 WO1997009848A1 (en) | 1995-09-02 | 1996-09-02 | Noticeboards incorporating loudspeakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1195456A true CN1195456A (en) | 1998-10-07 |
Family
ID=34865251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96196701A Pending CN1195456A (en) | 1995-09-02 | 1996-09-02 | Notice board with loudspeakers |
Country Status (21)
| Country | Link |
|---|---|
| EP (1) | EP0847667B1 (en) |
| JP (1) | JPH11512260A (en) |
| CN (1) | CN1195456A (en) |
| AT (1) | ATE177282T1 (en) |
| AU (1) | AU704227B2 (en) |
| BR (1) | BR9610426A (en) |
| CA (1) | CA2230234A1 (en) |
| CZ (1) | CZ58398A3 (en) |
| DE (1) | DE69601648T2 (en) |
| DK (1) | DK0847667T3 (en) |
| EA (1) | EA000612B1 (en) |
| ES (1) | ES2131410T3 (en) |
| HK (1) | HK1008645A1 (en) |
| HU (1) | HUP9904010A2 (en) |
| IL (1) | IL123438A (en) |
| NZ (1) | NZ316563A (en) |
| PL (1) | PL182243B1 (en) |
| RO (1) | RO119042B1 (en) |
| SK (1) | SK26498A3 (en) |
| TR (1) | TR199800368T1 (en) |
| WO (1) | WO1997009848A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104809966A (en) * | 2015-04-22 | 2015-07-29 | 黄雪莲 | Advertisement putting method and terminal |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL140304A0 (en) | 1998-06-22 | 2002-02-10 | Slab Technology Ltd | Loudspeakers |
| US6590993B2 (en) * | 1999-09-06 | 2003-07-08 | Koninklijke Philips Electronics N.V. | Panel-shaped loudspeaker |
| WO2001054454A2 (en) * | 2000-01-20 | 2001-07-26 | Amina Technologies Limited | Display apparatus with flat panel loudspeaker |
| DE10030746B4 (en) * | 2000-06-23 | 2008-11-20 | Lisa Dräxlmaier GmbH | Interior trim part for vehicles and method for producing the same |
| GB2369232B (en) * | 2000-11-18 | 2005-01-12 | Talksign Ltd | Display signs |
| EP1345469A1 (en) | 2002-03-15 | 2003-09-17 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker system |
| US8284955B2 (en) | 2006-02-07 | 2012-10-09 | Bongiovi Acoustics Llc | System and method for digital signal processing |
| US11431312B2 (en) | 2004-08-10 | 2022-08-30 | Bongiovi Acoustics Llc | System and method for digital signal processing |
| 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 |
| 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 |
| 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 |
| US9883318B2 (en) | 2013-06-12 | 2018-01-30 | Bongiovi Acoustics Llc | System and method for stereo field enhancement in two-channel audio systems |
| US9264004B2 (en) | 2013-06-12 | 2016-02-16 | Bongiovi Acoustics Llc | System and method for narrow bandwidth digital signal processing |
| US9906858B2 (en) | 2013-10-22 | 2018-02-27 | Bongiovi Acoustics Llc | System and method for digital signal processing |
| US10639000B2 (en) | 2014-04-16 | 2020-05-05 | Bongiovi Acoustics Llc | Device for wide-band auscultation |
| 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 |
| US9564146B2 (en) | 2014-08-01 | 2017-02-07 | Bongiovi Acoustics Llc | System and method for digital signal processing in deep diving environment |
| US9638672B2 (en) | 2015-03-06 | 2017-05-02 | Bongiovi Acoustics Llc | System and method for acquiring acoustic information from a resonating body |
| JP2018537910A (en) | 2015-11-16 | 2018-12-20 | ボンジョビ アコースティックス リミテッド ライアビリティー カンパニー | Surface acoustic transducer |
| US9621994B1 (en) | 2015-11-16 | 2017-04-11 | Bongiovi Acoustics Llc | Surface acoustic transducer |
| EP3477963B1 (en) * | 2017-05-19 | 2020-11-18 | Rafael Kubisz | Speaker system |
| EP3776528A4 (en) | 2018-04-11 | 2022-01-05 | 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 |
| KR20230173953A (en) * | 2022-06-20 | 2023-12-27 | 엘지디스플레이 주식회사 | Apparatus and vehicular apparatus comprising the same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3247925A (en) * | 1962-03-08 | 1966-04-26 | Lord Corp | Loudspeaker |
| DE2612450A1 (en) * | 1976-03-24 | 1977-10-06 | Reditune Thordsen Gmbh & Co | Acoustic signal emission arrangement - has contactless approximation sensor switch triggered by viewer and controlling acoustic signal generator fed from signal store |
| JPS5748153Y2 (en) * | 1977-11-26 | 1982-10-22 | ||
| FR2613863B1 (en) * | 1987-04-08 | 1991-09-06 | Fayard Thierry | EXTRA FLAT AUDIOVISUAL DEVICE |
| JPH02170795A (en) * | 1988-12-23 | 1990-07-02 | Foster Electric Co Ltd | Panel type loudspeaker |
| DK0541646T3 (en) * | 1990-08-04 | 1995-03-20 | Secr Defence Brit | Panel shaped speaker |
-
1996
- 1996-09-02 NZ NZ316563A patent/NZ316563A/en unknown
- 1996-09-02 CZ CZ98583A patent/CZ58398A3/en unknown
- 1996-09-02 TR TR1998/00368T patent/TR199800368T1/en unknown
- 1996-09-02 BR BR9610426-0A patent/BR9610426A/en not_active Application Discontinuation
- 1996-09-02 PL PL96325244A patent/PL182243B1/en unknown
- 1996-09-02 DE DE69601648T patent/DE69601648T2/en not_active Expired - Lifetime
- 1996-09-02 AT AT96929406T patent/ATE177282T1/en not_active IP Right Cessation
- 1996-09-02 EA EA199800264A patent/EA000612B1/en not_active IP Right Cessation
- 1996-09-02 AU AU68821/96A patent/AU704227B2/en not_active Ceased
- 1996-09-02 HU HU9904010A patent/HUP9904010A2/en unknown
- 1996-09-02 ES ES96929406T patent/ES2131410T3/en not_active Expired - Lifetime
- 1996-09-02 RO RO98-00636A patent/RO119042B1/en unknown
- 1996-09-02 WO PCT/GB1996/002165 patent/WO1997009848A1/en not_active Application Discontinuation
- 1996-09-02 CN CN96196701A patent/CN1195456A/en active Pending
- 1996-09-02 EP EP96929406A patent/EP0847667B1/en not_active Expired - Lifetime
- 1996-09-02 IL IL12343896A patent/IL123438A/en not_active IP Right Cessation
- 1996-09-02 DK DK96929406T patent/DK0847667T3/en active
- 1996-09-02 CA CA002230234A patent/CA2230234A1/en not_active Abandoned
- 1996-09-02 SK SK264-98A patent/SK26498A3/en unknown
- 1996-09-02 JP JP9510966A patent/JPH11512260A/en active Pending
-
1998
- 1998-07-28 HK HK98109449A patent/HK1008645A1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104809966A (en) * | 2015-04-22 | 2015-07-29 | 黄雪莲 | Advertisement putting method and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| IL123438A (en) | 2001-01-11 |
| DE69601648D1 (en) | 1999-04-08 |
| HK1008645A1 (en) | 1999-05-14 |
| CA2230234A1 (en) | 1997-03-13 |
| CZ58398A3 (en) | 1998-07-15 |
| EP0847667A1 (en) | 1998-06-17 |
| PL182243B1 (en) | 2001-11-30 |
| AU6882196A (en) | 1997-03-27 |
| PL325244A1 (en) | 1998-07-06 |
| DK0847667T3 (en) | 1999-10-04 |
| SK26498A3 (en) | 1998-09-09 |
| NZ316563A (en) | 1998-05-27 |
| TR199800368T1 (en) | 1998-05-21 |
| ATE177282T1 (en) | 1999-03-15 |
| EA199800264A1 (en) | 1998-10-29 |
| EA000612B1 (en) | 1999-12-29 |
| RO119042B1 (en) | 2004-02-27 |
| EP0847667B1 (en) | 1999-03-03 |
| IL123438A0 (en) | 1998-09-24 |
| JPH11512260A (en) | 1999-10-19 |
| AU704227B2 (en) | 1999-04-15 |
| DE69601648T2 (en) | 1999-09-16 |
| BR9610426A (en) | 1999-12-21 |
| WO1997009848A1 (en) | 1997-03-13 |
| ES2131410T3 (en) | 1999-07-16 |
| HUP9904010A2 (en) | 2000-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1195456A (en) | Notice board with loudspeakers | |
| CN1070017C (en) | Image display incorporating loudspeakers | |
| CN1195458A (en) | Panel-form loudspeakers | |
| CN1194086A (en) | Personal computer | |
| CN1195461A (en) | Display screens incorporating loudspeakers | |
| AU703020B2 (en) | Inertial vibration transducers | |
| US6285770B1 (en) | Noticeboards incorporating loudspeakers | |
| US6751333B1 (en) | Inertial vibration transducers | |
| AU703004B2 (en) | Musical instruments incorporating loudspeakers | |
| CN1195462A (en) | Packaging | |
| KR19990044331A (en) | Bulletin board with integrated loudspeakers | |
| CN1195455A (en) | Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements | |
| CN1195463A (en) | Panel-form microphones | |
| CN1195460A (en) | Greetings or like card | |
| CN1195457A (en) | Loudspeakers made of panel-form acoustic radiating elements | |
| CN1194085A (en) | Louds peakers with panel acoustic radiation elements | |
| CN1195459A (en) | Panel-form loudspeakers | |
| US6399870B1 (en) | Musical instruments incorporating loudspeakers | |
| CN1194706A (en) | Vending machine | |
| CN1194761A (en) | Loudspeakers comprising panel-form acoustic radiating element | |
| CN1194760A (en) | Loudspeakers comprising panel-form acoustic radiating elements | |
| CN1194764A (en) | Portable optic disk player | |
| CN1194763A (en) | Musical instrument incorporating loudspeakers | |
| CN1194765A (en) | Vibrative transducer | |
| CN1194767A (en) | Inertial vibrative transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |