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Patent Searching and Data


Matches 301 - 350 out of 16,598

Document Document Title
WO/2017/030238A1
The present invention relates to a speaker, and the purpose of the present invention is to minimize the height of the speaker. That is, the present invention relates to a speaker, which comprises: a plate-shaped vibration magnetism gener...  
WO/2017/030045A1
Provided are: an electroacoustic conversion film which is capable of reproduction with a sufficient sound volume and has high heat dissipation properties, while being suppressed in sound pressure change over time; a method for producing ...  
WO/2017/029768A1
Provided are: a vibration transmission structure (300) capable of achieving excellent vibration characteristics even in the cases where a piezoelectric element (1) is used; and a piezoelectric speaker (400). According to one embodiment o...  
WO/2017/031422A1
Systems and methods of driving plate loudspeakers with different parameters based on frequency region in a way similar to typical cone driver crossover networks are described. These systems and methods may be implemented using arrays of ...  
WO/2017/026600A1
The present invention relates to a linear acoustic transducer for transducing an electrical signal into an acoustic signal and, more specifically, to a linear acoustic transducer, which can efficiently deliver the vibration energy of a d...  
WO/2017/026397A1
This planar speaker is provided with: a diaphragm having a flat surface; an actuator, which supports the diaphragm, and vibrates the diaphragm in the board thickness direction, i.e., the direction substantially perpendicular to the flat ...  
WO/2017/021036A1
Speakers for locating in a vehicle exhaust system having a speaker surround that is formed from a rubber compounded using a polyacrylate polymer. Speakers having a speaker surround that is integral with a coating that covers or substanti...  
WO/2017/019463A1
A microphone device is comprises a first micro electro mechanical system (MEMS) device and a second MEMS device with difference size of pierce holes in the diaphragms. Signal outputs from the first and second MEMS devices are selectively...  
WO/2017/016060A1
The present invention relates to the technical field of speakers, and particularly discloses a dome of a vibration diaphragm, speaker and electronic equipment using the same, and manufacturing method thereof. The dome of the present inve...  
WO/2017/016151A1
Disclosed is a loudspeaker, comprising a casing (7) and a vibration system. The vibration system comprises a vibrating diaphragm (3) and a sound coil (4) fixed at a side of the vibrating diaphragm. A joint portion is arranged at an edge ...  
WO/2017/019434A1
Speaker driver devices (1101) including a diaphragm (1102) and one or more electrode (1103) are provided herein. The diaphragms (1102) and electrodes (1103) of the speaker driver devices may each include carbon nanotubes and/or graphene....  
WO/2017/014978A1
A device is provided that comprises a membrane that includes one or more layers of anelectrically resistive material. The device also comprises a film disposed along a surface of the membrane to form a coil. The film includes one or more...  
WO/2017/002573A1
The objective of the present invention is to provide an omnidirectional electro-acoustic converter that is capable of reproducing with high quality and with sufficient volume over a wide frequency band, and which uses a small number of c...  
WO/2016/208385A1
Provided are: an electroacoustic conversion film which is capable of reproduction with a sufficient sound volume, while being capable of preventing appearance defects; and an electroacoustic transducer. This electroacoustic conversion fi...  
WO/2016/202661A1
A MEMS microphone including a plurality of overtravel stops (OTS) connected to a perimeter of a membrane of the MEMS microphone. The OTS are released from a backplate layer during manufacturing and are configured to contact the backplate...  
WO/2016/200477A1
This disclosure relates to loudspeakers that use one or more stacks of electrically actuated cards that pump air through vents to produce sound waves in response to an acoustic signal. Each stack can include several electrostatic actuato...  
WO/2016/199009A1
An electrostatic loudspeaker, or a diaphragm for an electrostatic loudspeaker, where the diaphragm includes a plurality of conductive parts and, at least one insulator part separating between the conductive parts, and where each of the p...  
WO/2016/193691A1
A loudspeaker diaphragm (12) comprising a woven fibre body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fibre body may be formed of lengths (14) non-metallic fibre material (for ex...  
WO/2016/193868A1
A capacitive microphone including a rigid plate of a conductive material, a movable plate positioned in parallel to the rigid plate, electrically separated from the rigid plate, and held firmly with respect to the rigid plate in at least...  
WO/2016/194683A1
Provided is a speaker (1) which supports an n-bit digital signal and is provided with an acoustic pressure generating unit (10) in which 2i-1 piezoelectric elements relating to an i-th bit, a total of (2n-1) piezoelectric elements (51, 5...  
WO/2016/194425A1
[Problem] To provide a piezoelectric sounder capable of improving sound pressure without decreasing resonance frequency and an electroacoustic conversion device provided therewith. [Solution] A piezoelectric sounder 30 according to an em...  
WO/2016/135517A3
A combined light and loudspeaker driver device (10) is suitable for mounting in, for example, a ceiling void. It comprises a housing (15) that supports a loudspeaker driver (20), a heat removal element (120), electronic components (25) a...  
WO/2016/186114A1
Provided is a digital speaker (1) equipped with one piezoelectric element (4) having n-number of electrodes (51, 52, 53) that are spaced apart. Sound pressure is adjusted according to the area of the electrodes (51, 52, 53), and all of t...  
WO/2016/184604A1
The present invention relates to an acoustic sensor (1) comprising an electroacoustic transducer and an electrical conductor (4). The electroacoustic transducer comprises a plate-shaped transducer element (2) which is configured to emit ...  
WO/2016/181577A1
These headphones have: one pair of housings that contain speaker units; ear-accommodating parts including frames that contact the head and surround the ears, and connecting sections that connect the frames and housings, cover the ears, a...  
WO/2016/181531A1
These headphones have: one pair of housings that contain speaker units; ear-accommodating parts including frames that contact the head and surround the ears, and connecting sections that connect the frames and housings, cover the ears, a...  
WO/2016/180299A1
A loudspeaker(1) relates to a capacitive membrane(2) positions tracking used in a standard electro-dynamical speaker and offers an additional way of sensing the speaker(1) via the electric interface. State of the art techniques use the v...  
WO/2016/182035A1
The present invention provides a compact speaker unit having high sound quality. This speaker unit 1 is configured to include a vibration element 20 having at least one opening 20a, a vibration device 30 for coming into contact with the ...  
WO/2016/174086A1
The present invention relates to a miniature diaphragm assembly comprising a deep-drawn polymer foil forming a moveable membrane having an integrated suspension member and an integrated attachment region for attaching the diaphragm assem...  
WO/2016/170595A1
[Problem] To enable sound reproduction exhibiting a high quality particularly at low audio frequencies in an electroacoustic transducer device. [Solution] An electroacoustic transducer device comprises: a cylindrical yoke 29; a driver ma...  
WO/2016/169284A1
Disclosed are a silica gel diaphragm, a speaker module, and a method for reprocessing a silica gel diaphragm. Two symmetrical wire grooves are etched on a surface of the silica gel diaphragm via laser etching technology, a conductive met...  
WO/2016/169283A1
Disclosed are a silica gel diaphragm, a receiver module, and a method for processing a silica gel diaphragm. Two metal pieces are integrally injection moulded and formed on the silica gel diaphragm, the two metal pieces are symmetrically...  
WO/2016/169248A1
Disclosed is a diaphragm composite layer. The diaphragm composite layer comprises a plurality of carrier layers, and a foam adhesive is arranged between two adjacent carrier layers. Also disclosed is a manufacturing method for the diaphr...  
WO/2016/165324A1
Disclosed is a vibrating film comprising a vibrating film body, wherein the vibrating film body comprises a central plane part and a peripheral fixing part, a Dome reinforcing part is arranged on the plane part, a first thermosetting adh...  
WO/2016/167126A1
Provided is a low cost electroacoustic converter having wide directivity over a wide frequency band from low range to high range as a single unit. The present invention is provided with an oscillating body 1, an actuator that reciprocall...  
WO/2016/165377A1
Disclosed are a method for reprocessing a diaphragm, a diaphragm, and a receiver. The diaphragm comprises a planar portion located at the centre, a folding ring portion arranged on the edge of the planar portion, and a fixing portion con...  
WO/2016/165376A1
Disclosed are a method for preparing a silica gel diaphragm, and a silica gel diaphragm. The method comprises: using two substrate layers and a liquid silica gel to form a composite material strip via calendering means, the liquid silica...  
WO/2016/166111A1
The invention relates to a suspension device for a loudspeaker, comprising an annular outer edge (12) that is able to fasten the suspension device to a frame (13), an annular inner edge (14) that is able to fasten the suspension device t...  
WO/2016/163918A1
´╗┐The invention relates to designs of devices for radiating sound, more specifically to designs of radiating units for headphones. The technical result of the invention is an increase in the acoustic power of a radiating unit along with...  
WO/2016/155349A1
A vibrating diaphragm and a loudspeaker unit. The vibrating diaphragm comprises a vibrating-diaphragm central zone, an edge portion disposed at the rim region of the vibrating-diaphragm central zone, and a fixed portion connected to the ...  
WO/2016/160854A1
An acoustic diaphragm (12) made at least in part from an expanded material (27). The expanded material (27) includes one or more of cellulose, synthetic fibers and glass fibers. The expanded material (27) has more than about 55% by volum...  
WO/2016/158285A1
In a sound generating device according to the present invention, stable vibration of a voice coil (1) is achieved without a damper that supports the voice coil. A vibrator (2) is provided with a bending section (2C) having a deformation ...  
WO/2016/158518A1
The present invention provides a nondirectional electroacoustic transducer with a small parts count, with which it is possible to reproduce with high sound quality and sufficient sound volume in a wide frequency band. An electroacoustic ...  
WO/2016/150173A1
Disclosed is a vibrating diaphragm assembly, which relates to the technical field of electroacoustic products. The vibrating diaphragm assembly comprises a vibrating diaphragm, wherein the vibrating diaphragm comprises a middle part and ...  
WO/2016/151963A1
A sound-producing device according to an embodiment of the present invention comprises: a plurality of sound-producing bodies having mutually different vibration frequencies; a damper arranged for each sound-producing bodies and suppress...  
WO/2016/152929A1
A vibration supply device (10) having transducers (50, 50b) that have vibration members (511), and also having a second member (30) adhered by magnetic force to a first member (20) connected to a soundboard (7) of a musical instrument (1...  
WO/2016/150197A1
A diaphragm assembly and a loudspeaker having the diaphragm assembly. The diaphragm assembly comprises a silica gel diaphragm, the diaphragm comprises an annular bending portion, and a diaphragm center portion and a diaphragm edge portio...  
WO/2016/148860A1
This disclosure provides systems, methods, and apparatus related to an ultrasonic microphone and an ultrasonic acoustic radio. In one aspect a system includes a transmitter and a receiver. The receiver comprises a membrane. The membrane ...  
WO/2016/141745A1
Disclosed are a diaphragm and loudspeaker apparatus. The diaphragm comprises a diaphragm main body and a reinforcement unit combined at a central position of the diaphragm main body. The reinforcement unit comprises a carbon fiber sheet ...  
WO/2016/142277A1
The invention relates to a flat diaphragm (15 to 22) for a planar speaker (6 to 9), comprising a plate-shaped base body (69) which is formed from multiple layers and has at least one plate-shaped intermediate layer (70) which is surround...  

Matches 301 - 350 out of 16,598