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Matches 1 - 50 out of 20,635

Document Document Title
WO/2021/085981A1
Disclosed is a vehicle speaker including a first speaker assigned to output a low frequency band and a second speaker assigned to output a high frequency band. The first speaker and the second speaker may be installed on one surface of a...  
WO/2021/082764A1
Disclosed in embodiments of the present invention are a piezoelectric MEMS sensor and a relevant device, applied to scenarios such as a terminal, a smart loudspeaker, wireless Bluetooth earbuds, an active noise reduction headset, a lapto...  
WO/2021/085598A1
A conventional ultrasonic sensor has a structure in which a piezoelectric element is joined to an inner bottom surface of a closed-bottom tubular case, with a previously molded sponge and a seal material disposed over the piezoelectric e...  
WO/2021/079906A1
This acoustic lens (7) for an ultrasonic transducer is to be disposed at a front end of an ultrasonic transducer (1), has a concave front surface (C1), and is formed of a base material (B) in which a plurality of fine particles (G) are d...  
WO/2021/079769A1
A speaker according to an embodiment of the present invention is provided with: a diaphragm; an actuator mechanism; a first link mechanism; and a second link mechanism. The actuator mechanism has an actuator, and generates first vibratio...  
WO/2021/075204A1
A piezoelectric element is provided which can reliably connect electrically to an electrode layer. This piezoelectric element has a piezoelectric layer, an electrode layer formed on both sides of the piezoelectric layer, and a protective...  
WO/2021/064896A1
The present invention enables the realization of a lighter and more compact speaker device that is capable of high fidelity reproduction of a wider range of frequencies of sound. Provided is a speaker device comprising: a front panel on ...  
WO/2021/065142A1
A piezoelectric sound-generating component 1 provided with: a diaphragm 2 which has a substrate 10, a piezoelectric plate 23, and a pair of electrodes 24 and vibrates when a voltage is applied to the pair of electrodes 24; a case 6 which...  
WO/2021/063643A1
The invention relates to an earphone (1) comprising an ear-attachment support (3) and a piezoelectric audio transducer (4) attached to the attachment support. The earphone is designed to be attached to the ear in a position of use in whi...  
WO/2021/061382A1
An audio system presented herein includes a transducer array, a sensor array, and a controller. The transducer array presents audio content to a user. The controller controls the transducer array to adjust a level of tactile content impa...  
WO/2021/059782A1
Provided are a polymer composite piezoelectric body having high piezoelectric properties, and a resin composition for manufacturing said polymer composite piezoelectric body. The present invention pertains to: a resin composition conta...  
WO/2021/060755A1
An electronic device is provided. The electronic device includes a housing, a display that is visually exposed through one surface of the housing and that includes a display panel including a pixel array and a layer group including a plu...  
WO/2021/053892A1
Provided is a piezoelectric device (100) in which a membrane part (120) is indirectly supported by a base part (110), is located on the upper side relative to the base part (110), and is formed of a plurality of layers (130). The membran...  
WO/2021/053878A1
A case 2 for a piezoelectric sound generating component is provided with a case body 10 for housing a vibration plate 3, and an insert terminal 20 that is provided in the case body 10 to apply a voltage to the vibration plate 3, wherein ...  
WO/2021/049292A1
A transducer has: a piezoelectric element (10) comprising a piezoelectric membrane (13) sandwiched between a pair of electrodes (11, 12); a membrane body (15) comprising a vibration membrane (16) that can be displaced in the membrane thi...  
WO/2021/045049A1
This ultrasonic sensor is provided with an attachment sensor (8) for sensing attachment of foreign matter onto one surface of a bottom portion (3a) of a microphone housing (3). The attachment sensor includes a plurality of sensor electro...  
WO/2021/044764A1
An ultrasonic sensor device (1) is configured such that a first damping member (30) is in contact with the outer circumference side of a circumference wall (12). A first housing (40) supports a case (10) with the first damping member (30...  
WO/2021/039374A1
Provided are: an acoustic matching laminate which can be used to form an acoustic matching sheet that has low variation in intralayer acoustic wave characteristics, that shows suitably fast acoustic velocity, that is a thin film, and tha...  
WO/2021/033376A1
Provided is a piezoelectric vibration plate 11 comprising: an electrically conductive base part 100 having a central section 110 and a peripheral section 120 surrounding the central section 110; and a piezoelectric material part 150 prov...  
WO/2021/029239A1
This ultrasound sensor has an attachment sensor (8) comprising a variable capacitor (8a) and a fixed capacitor (8b). The variable capacitor includes a sensor electrode (8aa) which is disposed on one surface side of a bottom portion (3a) ...  
WO/2021/024790A1
An ultrasonic sensor (1) comprises a piezoelectric element (7), a first acoustic matching layer (2), and a second acoustic matching layer (5) which are laminated and bonded together, wherein the piezoelectric element (7) has a rectangula...  
WO/2021/024846A1
The present invention comprises: a piezoelectric element (12); an electrically conductive case (11); a first acoustic matching layer (13) bonded to the case (11); and a second acoustic matching layer (14) layered over and bonded to the f...  
WO/2021/024865A1
A piezo-electric element 10 is provided with: a piezo-electric element part 12 including a piezo-electric film 14 and electrodes 16 which nip the piezo-electric film 14 in a thickness direction Z; a support part 18 which supports a perip...  
WO/2021/021018A1
A device for monitoring the integrity of a membrane module. The device has a piezoelectric sensor capable of generating a voltage when exposed to vibrations and a light emitting diode electrically connected to the piezoelectric sensor, t...  
WO/2021/018469A1
An artificial cochlea device (100, 300) for processing audio signals by electro-mechanical amplitude changes includes a micro-electro- mechanical system, MEMS, microphone (118) comprising a membrane (102), and an electro-mechanical feedb...  
WO/2021/008383A1
Embodiments of the present disclosure disclose a speaker and a terminal device. The speaker comprises a non-closed chamber, a diaphragm component disposed in the chamber, and a piezoelectric component disposed on a first surface of the d...  
WO/2021/001733A1
Device (1, T) for reproducing sounds, in particular sounds intended to be perceived by a subject using said device, comprising a containment element (2) in which a transducer (4), preferably of an electro-acoustic type, is housed, which ...  
WO/2021/003087A1
The present disclosure provides a contact hearing device comprising a piezoelectric actuator. The attachment of the piezoelectric actuator to a tympanic membrane can vibrate the tympanic membrane based on a transmission received by the r...  
WO/2021/000069A1
Provided is a combined piezoelectric and capacitive MEMS microphone, comprising a base having a back cavity, and a capacitance system arranged on the base, wherein the capacitance system comprises a backplane and a vibrating diaphragm, t...  
WO/2020/261909A1
The present invention provides: a polymer composite piezoelectric substance from which it is possible to obtain a piezoelectric film capable of generating a high sound pressure output when used in a piezoelectric loudspeaker; a piezoelec...  
WO/2020/261911A1
The present invention provides: a polymer composite piezoelectric body which enables the output of a higher sound pressure when used in a piezoelectric speaker and which also enables the manufacture of a piezoelectric film showing excell...  
WO/2020/261877A1
The present invention addresses the problem of providing a piezoelectric film capable of materializing an electroacoustic transduction film or the like that is highly durable and capable of producing an adequate level of sound pressure i...  
WO/2020/261954A1
Provided are an electroacoustic transducer and an electroacoustic transduction film that can suppress deterioration of the piezoelectric transduction efficiency during use under a high temperature environment. This electroacoustic transd...  
WO/2020/261837A1
The present invention addresses the problem of providing a piezoelectric film that makes it possible to obtain a high sound pressure and sufficient sound pressure characteristics over a wide frequency band, and to obtain a piezoelectric ...  
WO/2020/261822A1
The present invention addresses the problem of providing a piezoelectric film (10) capable of realizing an electroacoustic transduction film or the like which exhibits high heat radiation performance and provides sufficient sound pressur...  
WO/2020/261957A1
Provided is a polymer composite piezoelectric body and a piezoelectric film in which variations in the piezoelectric conversion efficiency are suppressed to provide stable piezoelectric conversion characteristics under various humid envi...  
WO/2020/261963A1
Provided are a polymer composite piezoelectric body and a piezoelectric film configured for high productivity and capable of suppressing the loss of piezoelectric conversion efficiency under harsh temperature/humidity conditions. The pol...  
WO/2020/261904A1
The present invention provides: a polymer composite piezoelectric body which enables the achievement of a piezoelectric film that is capable of outputting a higher sound pressure if used in a piezoelectric speaker; a piezoelectric film w...  
WO/2020/252889A1
Provided by the present application is a display apparatus in which the screen generates sound, comprising a display panel and a vibration layer which is provided within the display panel and which is located within a display area of the...  
WO/2020/255962A1
Provided is an audio reproduction apparatus comprising an audio device having a three-dimensional shape formed by providing a plurality of creases to a thin-film material having a first electrode layer, a second electrode layer, and a ca...  
WO/2020/255566A1
The present invention suppresses generation of mechanical cross talk in a medical ultrasonic sensor array which has a plurality of ultrasonic sensors. In this medical ultrasonic sensor array which has a plurality of ultrasonic sensors, e...  
WO/2020/249457A1
The invention relates to a method for producing a MEMS transducer (1) for generating and/or detecting sound waves in the audible wavelength range and/or in the ultrasonic range, in which method at least one piezoelectric element (3a-3c) ...  
WO/2020/250497A1
The piezoelectric device (100) is provided with a substrate (110), a piezoelectric element (120), a lid part (130), and a partition part (140). The substrate (110) has a first main surface (111). The piezoelectric element (120) is positi...  
WO/2020/250657A1
The piezoelectric element is provided with: a piezoelectric body made of a piezoelectric material; and a first electrode and a second electrode disposed on the piezoelectric body. The piezoelectric body has a base section and multiple dr...  
WO/2020/247551A1
Systems and techniques are provided for a piezoelectric transducer. A base plate includes a first electrical contact and a second electrical contact. A transduction element is mounted directly on the base plate and electrically connected...  
WO/2020/241049A1
An audio reproduction apparatus provided with: an audio device in which a plural-layer structure is formed by folding a plurality of times a thin-film material having a capacitance layer sandwiched between a first electrode layer and a s...  
WO/2020/243700A1
A transceiver apparatus for maximizing voltage. A voltage booster or transformer is implemented using piezoelectric thin films in substrates, preferably CMOS substrates where active processing of RF signals can lead to highly integrated ...  
WO/2020/232947A1
The present application discloses a liquid crystal display module and a mobile terminal. The liquid crystal display module is provided with three exciters embedded in a display panel, and a sound insulation portion, the exciter in the mi...  
WO/2020/229466A1
The invention relates to an acoustic bending transducer system (1, 2) with a plurality of bending transducers (3, 4, 5), which are designed in such a way that deformable elements (31, 32, 41; 32, 34, 42; 31, 32, 3'1, 3'2) of the bending ...  
WO/2020/230484A1
A piezoelectric device (100) is provided with a base board (110), a piezoelectric element (120), and a lid portion (130). The piezoelectric element (120) includes a base portion (121) and a membrane portion (122). The base portion (121) ...  

Matches 1 - 50 out of 20,635