| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | WAVEGUIDE FOR SHAPING SOUND WAVES | EP15190898.5 | 2015-10-21 | EP3016103A3 | 2016-06-08 | Delay, Mark; Carlson, David |
An acoustic waveguide includes a plurality of projections to redirect sound waves to obtain a desired wave front, such as a flat plane wave front or an asymmetric curved wave front. The waveguide includes two waveguide members that are mirror images of each other. The waveguide members have corresponding vanes and projections. The waveguide includes an essentially circular input opening for alignment with a compression driver and provides a substantially rectangular output opening from the waveguide.
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| 222 | ACOUSTIC APPARATUS AND OPERATION | EP14732293.7 | 2014-05-30 | EP3004788A2 | 2016-04-13 | HENRY, Matthew; KINSELLA, Edward |
| A portable acoustic warning device which projects a specific acoustic waveform towards a target, creating a narrow beam of sound that is highly selective, minimizing exposure to users and bystanders, while enabling a controlled dosage of sound to be applied to the target. The design of the device is tailored to this waveform thus achieving a very high degree of directivity. It is not intended for communicating verbal messages. This waveform achieves maximum intensity at the target while using a relatively low sound pressure level; meaning that the exposure levels can be controlled to ensure they are within existing health and safety legislation. A laser range finder limits the sound level at the target to a pre-determined level. An integrated camera is used to aid aiming. Video footage is recorded with use; along with the sound level at the target, exposure duration, time, date and GPS coordinates. | ||||||
| 223 | Sound generator for use in parametric array | EP09166076.1 | 2009-07-22 | EP2148323B1 | 2015-05-20 | Moon, Won Kyu; Lee, Haksue; Je, Yub |
| 224 | LOUDSPEAKER AND DIAPHRAGM THEREFOR | EP11731449.2 | 2011-04-26 | EP2564602B1 | 2014-02-26 | DODD, Mark; OCLEE-BROWN, Jack; DAVIDSON, Julia |
| 225 | WADING VEHICLE DEPTH MEASUREMENT APPARATUS | EP11817314.5 | 2011-12-15 | EP2652456A1 | 2013-10-23 | TRAN, Thuy-Yung; HOARE, Edward; CLARKE, Nigel |
| A wading sensor for a vehicle comprises an ultrasonic parking distance control. An embodiment detects wading by sensing the difference in the settling time of the diaphragm of a transmitter/receiver, in water and in air. Other embodiments are disclosed. | ||||||
| 226 | VEHICLE CONTROL SYSTEM | EP11811337.2 | 2011-12-15 | EP2652454A1 | 2013-10-23 | TRAN, Thuy-Yung; HOARE, Edward; CLARKE, Nigel |
| A wading sensor for a vehicle comprises an ultrasonic parking distance control. An embodiment detects wading by sensing the difference in the settling time of the diaphragm of a transmitter/receiver, in water and in air. Other embodiments are disclosed. | ||||||
| 227 | Membrane de rayonnement acoustique pour une boîte à musique ou une montre à sonnerie | EP10193425.5 | 2010-12-02 | EP2461219A1 | 2012-06-06 | Sarchi, Davide; Favre, Jérôme; Karapatis, Nakis |
La membrane (1) de rayonnement acoustique est prévue pour être montée dans une boîte à musique ou une montre à sonnerie. La membrane est réalisée avec au moins une région de forme asymétrique formée dans le matériau de la membrane ou avec au moins une région de forme asymétrique ayant une épaisseur différente de l'épaisseur générale de la membrane. Elle comprend de préférence deux régions asymétriques en forme d'ellipse (2, 3), qui se superposent en partie et ont une épaisseur différente l'une de l'autre. Les deux ellipses (2, 3) de préférence excavées dans la membrane, sont décentrées l'une de l'autre.
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| 228 | Acoustic vibration reproducing apparatus | EP08151869.8 | 2008-02-25 | EP1968345A2 | 2008-09-10 | Katsumoto, Michiaki National Institute of Information and Communications Technology; Yamakata, Yoko National Institute of Information and Communications Technology |
An acoustic vibration reproducing apparatus includes: a first vibration plate; a first exciting unit applying a vibration to the first vibration plate; and a second exciting unit applying, to the first vibration plate, a vibration different from the vibration applied by the first exciting unit. |
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| 229 | HORN | EP03750739.9 | 2003-09-26 | EP1675099B1 | 2008-01-09 | RIBER ANZADALA, Roberto |
| The invention relates to a horn comprising a one-piece body which is preferably made from an injected plastic material. The aforementioned body defines a cylindrical tube (1) forming the acoustic chamber, the free end (1') of which is flared. In addition, the tube (1) is surrounded by a coaxial wall (6) having a semi-spherical or similar configuration, which forms a pressure chamber (7) with a corresponding blow tube (8). According to the invention, the periphery of a vibrating sheet (9) is fixed to the mouth of the wall (6) by means of heat sealing. The vibrating sheet, which is made from laminated aluminium, adopts a curved configuration such as to be housed in the end of the tube (1) forming the acoustic chamber (5), said end extending slightly beyond the mouth of the wall (6) forming the pressure chamber (7). | ||||||
| 230 | ULTRASOUND LOW FREQUENCY COMPOSITION CONVERTER PROVIDED WITH MODE SWITCH | EP01958695 | 2001-05-29 | EP1394538A4 | 2006-07-19 | SAMOKRUTOV ANDREI ANATOLIEVICH; KOZLOV VLADIMIR NIKOLAEVICH; SHEVALDYKIN VIKTOR GAVRIILOVIC |
| The invention relates to control instrumentation and can be used for defectoscopy, structurescopy and thicknessmetry, in particular for inspecting coarse-structure and heterogeneous materials such as concrete, plastics and formations. The inventive low frequency composition converter provided with a mode switch comprises a body, damping fluid, a pressure lid, first and second elements of a piezoelectric cell, a protector embodied in the form of a cone or a pyramid, and a commutator for the elements of the piezoelectric cell. The elements of a piezoelectric cell are electrically isolated from each other, the outlets thereof being connected to the ports of the commutator which enables said outlets to be connected to the outlets of the converter by connecting them inphasely and antiphasely in order to produce the emission of longitudinal and transversal ultrasound waves, respectively, and also for the reception thereof. The top of the protector embodied in the form of a cone or a pyramid is provided with a bit made of a material harder than the material of the remaining part of said protector or of an elastic material. Said invention makes it possible to extend the functionality and the scope of the converter by simplifying the structure design and improving the electroacoustic characteristics thereof. | ||||||
| 231 | HORN | EP03750739.9 | 2003-09-26 | EP1675099A1 | 2006-06-28 | RIBER ANZADALA, Roberto |
The invention relates to a horn comprising a one-piece body which is preferably made from an injected plastic material. The aforementioned body defines a cylindrical tube (1) forming the acoustic chamber, the free end (1') of which is flared. In addition, the tube (1) is surrounded by a coaxial wall (6) having a semi-spherical or similar configuration, which forms a pressure chamber (7) with a corresponding blow tube (8). According to the invention, the periphery of a vibrating sheet (9) is fixed to the mouth of the wall (6) by means of heat sealing. The vibrating sheet, which is made from laminated aluminium, adopts a curved configuration such as to be housed in the end of the tube (1) forming the acoustic chamber (5), said end extending slightly beyond the mouth of the wall (6) forming the pressure chamber (7). |
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| 232 | ULTRASONIC MEMBRANE TRANSDUCER | EP03715276.6 | 2003-04-28 | EP1503871B1 | 2006-06-21 | FRASER, John, D.; KLEE, Mareike, K.; SCHMITZ, Georg |
| The invention is directed towards structures for use with micro-formed membrane ultrasonic transducers, and methods for fabricating the structures. In one embodiment, the transducer includes a planar member having a piezoelectric material and spaced apart electrodes disposed on the planar member and coupled to the piezoelectric material for applying an electric field to the layer, and an acoustic backing member joined to the electrodes. In another embodiment, the transducer includes a planar member having a piezoelectric material that adjoins a semiconductor material, the semiconductor material having monolithically formed active circuits formed in the layer and coupled to the piezoelectric material. In still another embodiment, the transducer includes a planar member having a piezoelectric material, and an acoustic backing member having an adjoining layer of a semiconductor material having monolithically formed active circuits, the active circuits being coupled to the electrodes. | ||||||
| 233 | SCHALLWANDLER MIT KLEINER RÜCKVOLUMENKAMMER | EP03787671.1 | 2003-07-15 | EP1525774A1 | 2005-04-27 | PETERSEN, Holger |
| The invention relates to a sound transducer which is characterised by a mechanical transducer structure with a sealed rear volume chamber which is small in relation to the transducer and forms an essential functional component of the sound transducer. The relation between the membrane mass and the rear volume is selected in such a way that a pre-determined lower limit is obtained for a desired transmission range, and the elastic rigidity of the membrane restraint is selected in such a way that it is so low that it remains significantly below the elastic rigidity of the enclosed rear volume. | ||||||
| 234 | ULTRASOUND LOW FREQUENCY COMPOSITION CONVERTER PROVIDED WITH MODE SWITCH | EP01958695.7 | 2001-05-29 | EP1394538A1 | 2004-03-03 | SAMOKRUTOV, Andrei Anatolievich; KOZLOV, Vladimir Nikolaevich; SHEVALDYKIN, Viktor Gavriilovich |
The invention relates to control instrumentation and can be used for defectoscopy, structuroscopy and thickness measurements, in particular for inspecting coarse-structured and heterogeneous materials such as concrete, plastics and rock. The composite low frequency converter is provided with a mode switch and comprises a body, damping fluid, a hermetic cover, first and second parts of a piezoelectric element, a protector in the form of a cone or pyramid, and a commutator for controlling the parts of the piezoelectric element. The parts of the piezoelectric element are electrically isolated from each other, their outlets being connected to the ports of the commutator which enables said outlets to be connected to the outlets of the converter by connecting them inphase and antiphase so that the emission of longitudinal and transversal ultrasound waves and also the reception of both types of waves is made possible. |
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| 235 | Schallwandlersystem | EP98124257.1 | 1998-12-18 | EP0927987B1 | 2004-02-04 | Pfeiffer, Helmut; Flögel, Karl; Klotz-Engmann, Gerold, Dr. |
| 236 | ULTRASCHALLWANDLER | EP98959707.5 | 1998-10-05 | EP1064645B1 | 2003-09-24 | ARNOLD, Herbert; KARR, Dieter; FEHSE, Meike; RAPPS, Peter; ERNST, Waldemar |
| The invention relates to an ultrasonic transducer having a cup-like housing (1) with an annular wall and a bottom surface (2) that serves as membrane. A piezoelectric element, fitted on the inside of the bottom surface, is connected to the bonding conductors (3). The side opposite the bottom surface (2) is enclosed by a decoupling ring (4) which is configured as a retainer for the bonding conductors (3). | ||||||
| 237 | AKUSTISCHER WANDLER FÜR BREITBAND-LAUTSPRECHER ODER KOPFHÖRER | EP01929489.1 | 2001-04-02 | EP1273204A2 | 2003-01-08 | BAUMGART, Frank; KAULISCH, Thomas |
| The invention relates to an acoustic transducer for broad-band loudspeakers or magnet-free, electrodynamic headphones for generating sound, especially for the use in the homogenous and/or inhomogeneous magnetic field of a magnetic resonance tomograph. According to the advantages of the invention, sound having defined characteristics can be generated in such a way that said sound is provided with good quality and high effectiveness within the strong magnetic field of a magnetic resonance tomograph. In addition to music and voice, this comprises the generation of sound for actively controlling noise by generating sound by means of one or several membranes (1) that form air pockets. Said membranes (1) consist of elastic, non-magnetic or slightly magnetic material and are connected to strip conductors (2) in a two-dimensional and solid manner. A Lorentz force which is caused by the magnetic field of the magnetic resonance tomograph is exerted on said strip conductors as the driving power when current flows. | ||||||
| 238 | Schall- oder Ultraschallsensor | EP97105884.7 | 1997-04-10 | EP0807924B1 | 2002-12-11 | Eckert, Manfred; Flögel, Karl |
| 239 | TRANSDUCTEUR ACOUSTIQUE SOUS-MARIN A LARGE BANDE | EP00967997.8 | 2000-10-10 | EP1222653A1 | 2002-07-17 | LAGIER, Yves,Thomson-CSF Propriété Intellect.; SUPPA, Vito,Thomson-CSF Propriété Intellectuelle; ROUX, Gérard,Thomson-CSF Propriété Intellectuelle; LUBRANO, Gilles,Thomson-CSF Propriété Intellect. |
| The invention relates to underwater acoustic transducers for emitting a low-frequency broadband acoustic signal. The inventive transducer consists of a cylinder-shaped cap (105) which is closed at one end and open at the other. A piezoelectric plate (101) which operates by bending is fixed on the base of this cylinder, outside of the same. The inner cavity (106) defined by the cylinder is freely open towards the outer medium in which the acoustic waves are emitted and makes it possible to reduce the central frequency and increase the bandwidth while maintaining identical dimensions. | ||||||
| 240 | Schallwandlersystem | EP98124257.1 | 1998-12-18 | EP0927987A3 | 2001-10-04 | Pfeiffer, Helmut; Flögel, Karl; Klotz-Engmann, Gerold, Dr. |
Das Schallwandlersystem (10) enthält eine Biegeschwingerplatte (30), die mit einem elektromechanischen Wandler (20) gekoppelt und so ausgebildet ist, daß sie bei der Systembetriebsfrequenz zu Biegeschwingungen höherer Ordnung angeregt wird, bei denen sich auf der Biegeschwingerplatte (30) Knotenlinien ausbilden, zwischen denen abwechselnd gegenphasig schwingende erste und zweite Schwingungsbauchzonen liegen. Zur Beeinflussung der Schallabstrahlung ist in den zueinander gleichphasig und zu den ersten Schwingungsbauchzonen gegenphasig schwingenden zweiten Schwingungsbauchzonen auf der dem Übertragungsmedium abgewandten Rückseite der Biegeschwingerplatte jeweils ein Massering (40) konzentrisch zum Mittelpunkt (A) der Biegeschwingerplatte (30) angebracht. Infolge der vergrößerten Masse schwingen die zweiten Schwingungsbauchzonen mit wesentlich kleinerer Amplitude als die ersten Schwingungsbauchzonen, so daß sich die von den ersten und zweiten Schwingungsbauchzonen erzeugten gegenphasigen Schallwellen nicht vollständig gegenseitig kompensieren können. Dadurch entsteht ein Strahlungsdiagramm mit ausgeprägter Richtwirkung in der Richtung senkrecht zur Biegeschwingerplatte. |
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