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Matches 1 - 50 out of 16,450

Document Document Title
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 ...  
WO/2019/087923A1
A wiring member electrically connected to a piezoelectric element has a first region, a second region and a third region. The first region is positioned on multiple external electrodes and is bonded to the multiple external electrodes. T...  
WO/2019/084724A1
A loudspeaker and a cone thereof. The cone comprises a basically loudspeaker-shaped first diaphragm (10) and a first circular reinforcing rib (20). The first diaphragm (10) comprises a plurality of V-shaped notches (120) having a gradual...  
WO/2019/087834A1
The present invention addresses the problem of providing a speaker vibration plate which has a large rigidity and a sufficient vibration attenuation rate. The speaker vibration plate of the present invention is provided with a resin matr...  
WO/2019/081918A1
A speaker comprises an electroacoustic transducer diaphragm which is mounted between or suspended from multiple suspension pins or suspension components. The suspension pins or suspension components provide mechanical support and acousti...  
WO/2019/077925A1
A speaker (100) is equipped with: a magnetic circuit (110) that is provided with a magnetic gap (111); a voice coil body (120) disposed in a state of being inserted into the magnetic gap (111); a diaphragm (130), to which the voice coil ...  
WO/2019/073948A1
A speaker (100) provided with: a magnetic circuit (110); a voice coil body (120); a diaphragm (130) attached to the voice coil body (120); a housing (140) which accommodates the magnetic circuit (110) and the voice coil body (120), and t...  
WO/2019/074001A1
The present invention provides: a porous PI film which can be used suitably in a speaker diaphragm and has excellent heat resistance, lightweight and excellent acoustic quality properties; and a method for producing the porous PI film. T...  
WO/2019/073242A1
There is disclosed a polymeric film. The film comprises a polymeric material having a repeat unit of formula and a repeat unit of formula wherein Ph represents a phenylene moiety and wherein the shear viscosity, SV, of the polymeric mate...  
WO/2019/071379A1
Thin films are provided comprising a damping adhesive comprising a polysiloxane or mixture of polysiloxanes and exhibiting a tan delta of at least 0.42 for every temperature between 20 ℃ and 250 ℃ and a tan delta at 250 ℃ that is n...  
WO/2019/071970A1
Thin films are provided comprising a damping adhesive comprising a polysiloxane or mixture of polysiloxanes and exhibiting a tan delta of at least 0.42 for every temperature between 20°C and 250°C and a tan delta at 250°C that is no m...  
WO/2019/073697A1
[Problem] The present invention addresses the problem of providing a speaker unit that is low-cost, has good sound quality, and can be made thin. [Solution] A speaker unit comprises: a magnetic circuit 61 in which a space serving as a ma...  
WO/2019/070006A1
A glass plate construct provided with a first glass plate, a second plate disposed facing the first glass plate, and a liquid layer formed by sealing a liquid between the first glass plate and the second plate, the glass plate construct ...  
WO/2019/070007A1
This glass plate constituent body is provided with: at least two plates; a liquid layer retained between the two plates; and a seal material provided between the two plates so as to seal the liquid layer, wherein at least one of the two ...  
WO/2019/070004A1
The purpose of the present invention is to provide a glass plate construct that realizes desirable visibility when applied to a display, etc. This glass plate construct is provided with at least two plates, a liquid layer held between tw...  
WO/2019/070005A1
The present invention provides a display device and a television device with which it is possible to reduce the thickness of the device profile while also realizing desirable acoustic characteristics. This display device is provided with...  
WO/2019/066070A1
The present invention relates to a moulded article that comprises a resin part formed from a thermoplastic resin composition, wherein refinement of cellulose within a thermoplastic resin is possible and refined plant-derived fibres are u...  
WO/2019/066069A1
The present invention relates to a molded article which comprises a resin part that is formed of a thermoplastic resin composition wherein refined cellulose is uniformly dispersed in a thermoplastic resin. This molded article comprises a...  
WO/2019/064959A1
Provided is a lightweight acoustic reproduction device. This acoustic reproduction device is provided with a plurality of flat speakers 11, the plurality of flat speakers 11 being disposed such that normals to sound emitting faces thereo...  
WO/2019/049438A1
Provided is an acoustic device capable of allowing people located in both the front side and rear side to hear reproduced sounds over a wide frequency range. This acoustic device is provided with a flat speaker 3 for low frequency-range ...  
WO/2019/047082A1
Provided is a method for forming an aluminum surface selenium treated nano coating for improving low frequency extension of an earphone. The method comprises: immersing an aluminum film in a water mixed solution of glucose and 2-chloro-4...  
WO/2019/036900A1
A method for coating a membrane on the surface of a speaker diaphragm, at least comprising the following steps: providing a speaker diaphragm (1), arranging a coating membrane on the surface of the speaker diaphragm (1), the coating memb...  
WO/2019/039032A1
This musical instrument is provided with a vibrator that generates sound by vibrating a body to be vibrated in a predetermined direction, wherein the vibrator is provided with a vibrating body that is provided so as to vibrate in the pre...  
WO/2019/033854A1
A differential condenser microphone with double vibrating membranes, comprising: a backplate; a first vibrating membrane supported on a first surface of the backplate in an insulating manner, wherein the backplate and the first vibrating...  

Matches 1 - 50 out of 16,450