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Patent Searching and Data


Matches 1 - 50 out of 16,505

Document Document Title
WO/2019/217640A1
A solid piston having a closed shape is attached to a solid support surrounding the piston and corresponding in shape to the shape of the piston by a layer of compliant material adhered to a top surface of the piston and a top surface of...  
WO/2019/215804A1
A purpose of the invention is to provide a speaker apparatus wherein: vibrations generated from a vibration device can be efficiently transmitted to a diaphragm; volume is secured; and clear sound with a wide range can be produced. A spe...  
WO/2019/210645A1
Disclosed by the present invention are a silicone modified polyurethane elastomer diaphragm and speaker monomer. The diaphragm comprises: adding isocyanate, silicone carrying a reactive hydrogen functional group, and a chain extender int...  
WO/2019/213388A1
Micromachined ultrasonic transducers having pressure ports are described. The micromachined ultrasonic transducers may comprise flexible membranes configured to vibrate over a cavity. The cavity may be sealed, in some instances by the me...  
WO/2019/209062A1
The present invention relates to a diaphragm. According to one embodiment of the present invention, the diaphragm comprises: a diaphragm part including a central part and a surrounding part disposed so as to encompass the central part; a...  
WO/2019/200541A1
A display device for applying a planar loudspeaker principle to make a sound, comprising: a display panel (10) comprising multiple stacked components (20) being of a plate-shaped or membranous structure; and an exciter (30) fixedly dispo...  
WO/2019/193365A1
An electromagnetic actuator includes an inner magnet arranged relative to an axis, an outer magnet arranged a radial distance from the axis, an inner radial wall of the outer magnet facing an outer radial wall of the inner magnet, the in...  
WO/2019/187547A1
The present invention is an audio device that has an acoustic sheet which is a thin film material having capacitive characteristics and which has a curved shape. The acoustic sheet has a first region that is actively driven by an input s...  
WO/2019/189978A1
The present invention provides a high-performance slim speaker comprising: a frame part (110) having an upwardly open space arranged therein; a diaphragm (120) mounted at the upper side of the space to be able to vertically vibrate; a fi...  
WO/2019/179186A1
Disclosed are a diaphragm and a loudspeaker. The diaphragm comprises: a carbon fiber frame, the carbon fiber frame being jointly constituted by a plurality of carbon fibers; several filling gaps arranged in the carbon fiber frame; and a ...  
WO/2019/178797A1
A device with external diaphragm for acoustic cleaning and air purification is provided. The device comprises a housing with a first opening at a top for receiving one or more acoustic wave generating devices each with a diaphragm attach...  
WO/2019/172076A1
This speaker device is provided with: a diaphragm (11); an exciter (13) for generating vibration in accordance with an inputted electric signal; and a vibration transmission unit (15), provided between the diaphragm (11) and the exciter ...  
WO/2019/173559A1
A loudspeaker is provided with a motor assembly having at least one planar coil and first and second magnets magnetized in a magnetized direction perpendicular to direction of coil movement and perpendicular to a central axis of radiatio...  
WO/2019/171657A1
A luggage storage box wherein a vibrator 30 is attached to the back surface of a panel wall 15a of an operation panel 14 including an operation unit, and voice is generated by conveying vibrations from the vibrator 30 to the panel wall 1...  
WO/2019/172715A1
One embodiment provides a method comprising determining a potential energy in a loudspeaker, a kinetic energy in the loudspeaker, and an electrical energy in the loudspeaker based on a physical model of the loudspeaker. The method furthe...  
WO/2019/171656A1
A luggage storage box wherein a vibrator 30 is attached to the back surface of a panel wall 15a of an operation panel 14 including an operation unit, and voice is generated by conveying vibrations from the vibrator 30 to the panel wall 1...  
WO/2019/171030A1
A method includes determining, for a piezoelectric cantilever-type transducer of a distributed mode loudspeaker adapted to cause vibration of a load, a subset of frequencies from a range of frequencies at which to output vibrations, in w...  
WO/2019/122942A8
A spatial sound modulator can comprise an array of controllable unit cells, each has a dimension of roughly half the wavelength of the target frequency. The spatial sound modulator can communicate with at least one feedback to achieve me...  
WO/2019/162658A1
An electromagnetic actuator includes an inner magnet arranged relative to an axis, an outer magnet arranged a radial distance from the axis, an inner radial wall of the outer magnet facing an outer radial wall of the inner magnet, the in...  
WO/2019/161892A1
The disclosure concerns a communication device (102) comprising a housing (104) with a front body (106) and a main body (108). The front body (106) comprises a display unit (110) having a plurality of layers (114, 116, 118, 120, 122) att...  
WO/2019/160653A1
A ported cavity tweeter includes a face plate having top and bottom surfaces, a diaphragm frame secured to the bottom surface of the face plate, and a central aperture passing through both the face plate and the diaphragm frame. In addit...  
WO/2019/160642A1
A diaphragm ported tweeter includes a ring structure having an upper portion and a lower portion, and a dome-shaped diaphragm having a periphery secured to the upper portion of the ring structure and a concentrically positioned aperture ...  
WO/2019/160523A1
The invention relates to electroacoustic transducers of electrodynamic type intended for the use in headphones. More particularly, the invention relates to the type of electroacoustic electrodynamic transducers having a vibration membran...  
WO/2019/156487A1
An electronic device according to various embodiments of the present invention may comprise: a housing including a front plate, a rear plate oriented in a direction opposite to the front plate, and a side member for surrounding a space b...  
WO/2019/155650A1
The loudspeaker device according to an embodiment of the present invention has a state signal acquisition unit, sound signal acquisition unit, signal processing unit, exciter, and soundboard. The state signal acquisition unit acquires a ...  
WO/2019/153762A1
Disclosed is a large dynamic multimedia speaker having a large voice coil, comprising a support system, a magnetic circuit system and a vibration system, wherein the support system supports the magnetic circuit system and the vibration s...  
WO/2019/146860A1
A display device is disclosed. The display device comprises: a display panel; a first speaker unit including a first space and a second space isolated from the first space and communicating with the outside, and having a first opening co...  
WO/2019/138539A1
The present invention provides an acoustic device provided with an attachment structure that applies little mechanical stress to the sounding board of a piano. An acoustic device 10 includes an oscillating mechanism 11, an oscillating me...  
WO/2019/128422A1
Embodiments of the present invention provide a diaphragm and an electroacoustic transducer. The diaphragm is rectangular and comprises a middle part and a folding ring part surrounding the periphery of the middle part. The folding ring p...  
WO/2019/130019A1
A system includes a flat panel display having a panel resonant frequency response corresponding to a composition, shape, and structure of the flat panel display; and an actuator having an actuator resonant frequency response correspondin...  
WO/2019/129918A1
An apparatus, method, computer program and audio transducer, the apparatus comprising: an audio transducer configured to transduce an audio signal into a sound output signal; a sensing portion comprising two dimensional material wherein ...  
WO/2019/131041A1
A display apparatus according to an embodiment of the present disclosure is provided with: thin-plate-like display cells that display a video image; one or a plurality of vibrators that are disposed on the back-surface side of the displa...  
WO/2019/130972A1
A display apparatus according to an embodiment of the present disclosure is provided with: thin-plate-like display cells that display a video image; M vibrators that are disposed on the back-surface side of the display cells and that cau...  
WO/2019/125673A1
An apparatus includes a frame and a surround element that couples a diaphragm to the frame such that the diaphragm is movable in a reciprocating manner relative to the frame. The surround element includes a half-roll element having a con...  
WO/2019/122886A1
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for changing a distributed mode loudspeaker's fundamental frequency. One of the systems includes a distributed mode loudspeaker comprising an...  
WO/2019/122892A1
Methods, systems, and apparatus for using a two-dimensional distributed mode actuator. One of the systems includes a transducer adapted to create a force to cause vibration of a load to generate sound waves, the transducer having a first...  
WO/2019/122942A1
A spatial sound modulator can comprise an array of controllable unit cells, each has a dimension of roughly half the wavelength of the target frequency. The spatial sound modulator can communicate with at least one feedback to achieve me...  
WO/2019/121266A1
A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surf...  
WO/2019/117706A1
A speaker device (1) having a frame (2), two opposite directed diaphragms (3, 3'), and two speaker drivers, each having at least one magnetic driver (10, 10') for driving the two opposite directed diaphragms (3, 3') in operation. A speak...  
WO/2019/116038A1
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for selecting distributed mode loudspeaker electrodes using an output frequency. One of the methods includes determining, for a piezoelectric...  
WO/2019/111775A1
A display panel according to an embodiment of the present invention is provided with: a flexible organic electroluminescent panel; and one or more piezoelectric films that are provided to the backside of the organic electroluminescent pa...  
WO/2019/111558A1
This vibration system has: a diaphragm; and an edge that is disposed around the diaphragm. The vibration system is configured such that the diaphragm has a first region and a second region which have shapes asymmetrical to each other, th...  
WO/2019/104899A1
A planar diaphragm loudspeaker, comprising a diaphragm assembly (100) and a magnetic body component (200). The diaphragm assembly (100) comprises a diaphragm body (101), a first conductor structure (102), a support gasket (103), and two ...  
WO/2019/102860A1
The present invention enables a reduction in harmonic distortion in a speaker unit comprising a diaphragm the rigidity of which varies according to the direction from the center to the outer circumference thereof. Provided is a speaker u...  
WO/2019/100432A1
Disclosed is a MEMS microphone, comprising a substrate, a first diaphragm and a second diaphragm, wherein a sealed chamber is formed between the first diaphragm and the second diaphragm; a back electrode unit is located in the sealed cha...  
WO/2019/098225A1
This acoustic diaphragm, including a part comprising a base material of a magnesium-based alloy, has excellent acoustic characteristics, the acoustic diaphragm being characterized in that the maximum crystal grain diameter of a crystal b...  
WO/2019/095510A1
Disclosed is a sound-emitting device. The sound-emitting device comprises: a magnetic circuit system with a magnetic gap formed therein; a vibration component comprising an annular support portion, a vibrating diaphragm, and a voice coil...  
WO/2019/092432A1
Circular flat panel loudspeaker comprising a resonant with a rear surface opposite the front surface. An exciter is provided at an axial centre of panel and coupled to the rear surface of the panel to cause the panel to vibrate, on opera...  
WO/2019/087922A1
A piezoelectric element comprises a piezoelectric body having a first main surface and a second main surface opposite of each other, and multiple external electrodes arranged on the first main surface. A vibration member has a third main...  
WO/2019/086357A1
A loudspeaker device comprises first and second diaphragms (12, 14) arranged co-axially in an opposed relation to each other to cancel mechanical vibrations. Each diaphragm has multiple voice coils, with the voice coils of the first and ...  

Matches 1 - 50 out of 16,505