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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка

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Применить Всего найдено 8503. Отображено 100.

14-06-2012 дата публикации

Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeaker

Номер: US20120145345A1

Автор: Kazuyoshi Mimura, Kenichi Ajiki, Masahide Sumiyama, Shinya Mizone, Toru Fujii

Принадлежит: Panasonic Corp

A manufacturing method of a paper making part for a loudspeaker has freedom of adjusting a characteristic and a sound quality, and has a higher productivity. Accordingly, a fibrillating step of a paper making material is achieved by an explosive crushing step. Alternatively, the step is achieved by a mixing step of a paper making material and a liquid, a material micro-fabricating step of applying a pressure to a mixed solution obtained by the mixing step so as to pass through an orifice and thereafter run into a device wall, and a paper making step including the micro-fabricated material.

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Номер записи: 1

18-10-2012 дата публикации

Reinforced diaphragm for a low profile loudspeaker transducer

Номер: US20120263341A1

Автор: Brendon Stead

Принадлежит: Harman International Industries Inc

A diaphragm for use in a loudspeaker transducer is disclosed. The loudspeaker transducer may include a voice coil, a former, a first magnet assembly having a circular inner magnet, a top plate having a annular outer top plate and a circular inner top plate, a second magnet assembly having an annular outer magnet and a circular inner magnet, an air gap defined by the circular inner magnet of the first magnet assembly, annular outer top plate, circular inner top plate, annular outer magnet and circular inner magnet of the second magnet assembly, and a surround suspension member.

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Номер записи: 2

06-12-2012 дата публикации

Plate, Transducer and Methods for Making and Operating a Transducer

Номер: US20120308053A1

Автор: Alfons Dehe

Принадлежит: INFINEON TECHNOLOGIES AG

A plate, a transducer, a method for making a transducer, and a method for operating a transducer are disclosed. An embodiment comprises a plate comprising a first material layer comprising a first stress, a second material layer arranged beneath the first material layer, the second material layer comprising a second stress, an opening arranged in the first material layer and the second material layer, and an extension extending into opening, wherein the extension comprises a portion of the first material layer and a portion of the second material layer, and wherein the extension is curved away from a top surface of the plate based on a difference in the first stress and the second stress.

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Номер записи: 3

21-02-2013 дата публикации

Diaphragm of electric sound converter and its manufacturing method

Номер: US20130043090A1

Автор: Hiroshi Akino

Принадлежит: Audio Technica KK

In a diaphragm of an electric sound converter which converts vibration such as sound into an electrical signal, a center dome is reinforced while suppressing variations in the sensitivity and frequency response to the minimum, whereby reduction in a high-pass reproduction limit is suppressed, and occurrence of anomalous resonance is prevented. In a diaphragm 1 of an electric sound converter having a center dome 2 , a reinforcing film 7 made of the same material as that of the center dome and formed into the same shape as that of the center dome is applied to the center dome with a hot-melt adhesive 6 of the same nature as that of the center dome, a groove 7 a formed in a polygonal reticulate pattern is provided on one surface of the reinforcing film adhered with the adhesive, and a convex rib 8 corresponding to the groove is formed on the other surface.

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Номер записи: 4

21-02-2013 дата публикации

Oscillator

Номер: US20130043769A1

Автор: Jun Kuroda, Motoyoshi Komoda, Shigeo Satou, Tatsuya Uchikawa, Yasuharu Onishi, Yuichiro Kishinami, Yukio Murata

Принадлежит: NEC Corp

An oscillator includes a piezoelectric vibrator ( 10 ), a vibrating member ( 20 ) which is larger than the piezoelectric vibrator ( 10 ) when seen in a plan view and restrains one surface of the piezoelectric vibrator ( 10 ), a vibrating member ( 25 ) which is larger than the piezoelectric vibrator ( 10 ) when seen in a plan view and restrains the other surface of the piezoelectric vibrator ( 10 ), an elastic member ( 30 ) which supports an edge of the surface of the vibrating member ( 20 ), which restrains the piezoelectric vibrator ( 10 ), and supports an edge of the surface of the vibrating member ( 25 ), which restrains the piezoelectric vibrator ( 10 ), and a supporting member ( 35 ) which is located around the elastic member ( 30 ) and supports the elastic member ( 30 ).

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Номер записи: 5

21-02-2013 дата публикации

Electret loudspeaker device

Номер: US20130044906A1

Автор: Chih-Kung Lee, Han-Lung Chen, Hsu-Ching Liao, Wen-Hsin Hsiao, Yu-Chi Chen

Принадлежит: National Taiwan University NTU

An electret loudspeaker device including a diaphragm, a first perforated electrode and a first spacer is provided. The diaphragm includes a first electret, a second electret, a polymer layer and an electrode layer. At least one layer of the first electret or the second electret is formed by expanded polytetrafluoroethylene. The second electret is stacked on one side of the first electret, while the electrode layer is stacked on the opposite side of the first electret. The polymer layer is made of a hydrophobic material and is disposed on the second electret. The first perforated electrode is stacked on a first spacer and close to the polymer layer. The first spacer disposed to between the diaphragm and the first perforated electrode supports the first perforated electrode over the diaphragm and defines a first chamber. A fabrication method of the electret loudspeaker device is also provided.

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Номер записи: 6

03-10-2013 дата публикации

Test Structures and Methods

Номер: US20130258301A1

Автор: Alfons Dehe

Принадлежит: INFINEON TECHNOLOGIES AG

Test structures and methods for semiconductor devices, lithography systems, and lithography processes are disclosed. In one embodiment, a method of manufacturing a semiconductor device includes using a lithography system to expose a layer of photosensitive material of a workpiece to energy through a lithography mask, the lithography mask including a plurality of first test patterns having a first phase shift and at least one plurality of second test patterns having at least one second phase shift. The layer of photosensitive material of the workpiece is developed, and features formed on the layer of photosensitive material from the plurality of first test patterns and the at least one plurality of second test patterns are measured to determine a optimal focus level or optimal dose of the lithography system for exposing the layer of photosensitive material of the workpiece.

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Номер записи: 7

03-10-2013 дата публикации

LOUDSPEAKER DIAPHRAGM AND LOUDSPEAKER USING THE SAME

Номер: US20130259291A1

Автор: FUJITANI Takeshi

Принадлежит: ONKYO CORPORATION

A loudspeaker diaphragm includes a diaphragm portion and an edge portion, which is molded integrally with the diaphragm portion and made of a material different from a material for the diaphragm portion. The edge portion contains at least one thermoplastic polymer (I), in combination with a block polymer (II). The at least one thermoplastic polymer (I) is selected from a block copolymer (I-a) which contains a polymer block (A) having a repeating structural unit derived from an aromatic vinyl compound and a polymer block (B) having a repeating structural unit derived from a conjugated diene, and an addition hydrogenated block copolymer (I-b) of the block copolymer (I-a). The block copolymer (II) contains a polymer block (C) having a repeating structural unit derived from an olefin compound and a polymer block (D) having a repeating structural unit derived from a (meth)acrylic compound. 1. A loudspeaker diaphragm , comprising:a diaphragm portion; andan edge portion, which is molded integrally with the diaphragm portion and made of a material different from a material for the diaphragm portion, wherein:the edge portion comprises at least one thermoplastic polymer (I), in combination with a block polymer (II);the at least one thermoplastic polymer (I) is selected from a block copolymer (I-a) comprises a polymer block (A) having a repeating structural unit derived from an aromatic vinyl compound and a polymer block (B) having a repeating structural unit derived from a conjugated diene, and an addition hydrogenated block copolymer (I-b) of the block copolymer (I-a); andthe block copolymer (II) comprises a polymer block (C) having a repeating structural unit derived from an olefin compound and a polymer block (D) having a repeating structural unit derived from a (meth)acrylic compound.2. A loudspeaker diaphragm according to claim 1 , wherein the edge portion comprises 5 parts by weight to 95 parts by weight of the block copolymer (II) with respect to 100 parts by weight of ...

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Номер записи: 8

31-10-2013 дата публикации

Acoustic Assembly with Supporting Members

Номер: US20130284537A1

Автор: Collins James, Kearey Steven Roy, LoPresti Janice, Naylor Felix Matthew

Принадлежит: Knowles Electronics, LLC

An apparatus includes a top assembly, a bottom assembly, and a diaphragm assembly. The bottom assembly is coupled to the top assembly to form an overall assembly. The diaphragm assembly includes a ring and a diaphragm flexible member that is attached to the ring. The ring forms an opening and at least one strengthening member is disposed at least partially across the opening. The at least one strengthening member is configured to provide strength and maintain a predetermined compliance of the diaphragm flexible member. 1. An apparatus , comprising:a top assembly;a bottom assembly, the bottom assembly coupled to the top assembly to form an overall assembly; anda diaphragm assembly, the diaphragm assembly including a ring and a diaphragm flexible member attached to the ring, wherein the ring forms an opening, wherein at least one strengthening member is disposed at least partially across the opening, and wherein the at least one strengthening member is configured to provide strength and maintain a predetermined compliance of the diaphragm flexible member.2. The apparatus of wherein the top assembly or the bottom assembly additionally comprises a back plate or a microelectromechanicalsystem (MEMS) die.3. An apparatus claim 1 , comprising:a top assembly;a bottom assembly, the bottom assembly coupled to the top assembly to form an overall assembly;a reinforcing plate attached to one of the top assembly or bottom assembly, the reinforcing plate extending at least partially across the length of the overall assembly and providing strength to the apparatus;wherein the top assembly or the bottom assembly are configured to include at least one additional component.4. The apparatus of wherein the at least one additional component is one or more of a diaphragm claim 3 , a back plate claim 3 , or a microelectromechanicalsystem (MEMS) die.5. The apparatus of wherein the reinforcing plate includes one or more openings extending therethrough.6. The apparatus of wherein the ...

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Номер записи: 9

14-11-2013 дата публикации

Wide-range, wide-angle loudspeaker driver

Номер: US20130301865A1

Автор: Eugene J. CHRISTENSEN

Принадлежит: Individual

An air motion transformer loudspeaker driver including a plurality of diaphragm layers having electric conductors. Each of the diaphragm layers defines a surface having at least one curved portion. The curved portions have an axis of curvature being perpendicular to the surface of the diaphragm layer at the location of the curved diaphragm portions.

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Номер записи: 10

28-11-2013 дата публикации

SPEAKER EDGE, METHOD FOR MANUFACTURING SAME AND SPEAKER

Номер: US20130315435A1

Автор: Kaiya Teruaki, Nakagawa Masaru, Sato Junichi, SATO Masatoshi, TAKAHASHI Nobuaki

Принадлежит:

A speaker edge includes a resin layer including a resin member and a fiber layer including a tangled fiber body. A melting temperature of the tangled fiber body is higher than a melting temperature of the resin member. The hardness of the tangled fiber body is lower than the hardness of the resin member. 129-. (canceled)30. A speaker edge comprising:a resin layer including a resin member; anda fiber layer including a tangled fiber body, whereina melting temperature of the tangled fiber body is higher than a melting temperature of the resin member, anda hardness of the tangled fiber body is lower than a hardness of the resin member.31. The speaker edge according to claim 30 , wherein a thickness of the fiber layer is smaller than a thickness of the resin layer.32. The speaker edge according to claim 30 , wherein the fiber layer includes space.33. The speaker edge according to claim 30 , wherein the fiber layer includes the tangled fiber body as a free-type tangled body.34. The speaker edge according to claim 30 , further comprising a connecting layer including a part of the tangled fiber body and a part of the resin member between the fiber layer and the resin layer.35. The speaker edge according to claim 30 , wherein a specific heat of a fiber in the tangled fiber body is substantially equal to or smaller than a specific heat of a resin material in the resin member.36. A speaker comprising:{'claim-ref': {'@idref': 'CLM-00030', 'claim 30'}, 'a vibration system member having the speaker edge according to ;'}a static member supporting the vibration system member, anda magnetic circuit.37. The speaker edge according to claim 30 , whereinthe vibration system member includes a diaphragm and a voice coil, andthe static member includes the magnetic circuit and an attaching countermember,the diaphragm is attached to the attaching countermember via the speaker edge.38. A method for manufacturing a speaker edge comprising:molding a stacking body into a prescribed shape by ...

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Номер записи: 11

27-02-2014 дата публикации

Stacked piezoelectric speaker device

Номер: US20140056449A1

Автор: Sang Sub ROH, Yukihiro Noro, Yun Kwon CHOI

Принадлежит: Wisol Co Ltd

A stacked piezoelectric speaker device having a structure where a piezoelectric ceramic plate and an internal electrode plate are stacked, in which an inactive dummy electrode is disposed around an active internal electrode on the same layer to ensure uniform plastic shrinkage. The stacked piezoelectric speaker device has a structure in which an inactive dummy electrode that does not contribute to polarization is disposed around an active internal electrode that contributes to the polarization, the active internal electrode and the inactive dummy electrode being stacked on the same layer.

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Номер записи: 12

27-02-2014 дата публикации

Speakers, headphones, and kits related to vibrations in an audio system, and methods for forming same

Номер: US20140056459A1

Автор: Sam NOERTKER, Tetsuro Oishi

Принадлежит: Skullcandy Inc

A speaker comprises a support structure having a circumferentially extending rim, a vibration member configured to be displaced relative to the support structure during operation of the speaker, and a suspension member suspending the vibration member relative to the support structure. The suspension member includes a radially outer portion attached to the rim of the support structure, a radially inner platform portion attached to the vibration member, and a plurality of beams. Each beam of the plurality of beams may extend from the radially outer portion to the radially inner platform portion. The plurality of beams is configured such that a resonant frequency of the vibration member attached to the radially inner platform portion of the suspension member scales linearly with a beam width of the beams of the plurality of beams.

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Номер записи: 13

20-03-2014 дата публикации

Suspension and speaker using same

Номер: US20140079253A1

Автор: Xudong Yan

Принадлежит: AAC Acoustic Technologies Shenzhen Co Ltd, AAC Microtech Changzhou Co Ltd

Disclosed is a speaker having a suspension. The suspension includes a vibrating arm having at least a pair of layer structures and an insulating layer sandwiched between the two layer structures. Each layer structure has a foil signal transmission layer, a hardness reinforcement layer and a glue layer for connecting the foil signal transmission layer with the hardness reinforcement layer and a conductive portion for electrically connecting the foil signal transmission layers of each of layer structures. The suspension of the disclosure can prevent the signal layer from being broken. The suspension disclosed has at least two layer structures, which makes the signal transmitted in each layer structures at the same time, even if one of the layer structures is broken, the rest of the layer structures can still be working.

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Номер записи: 14

27-03-2014 дата публикации

Compound membrane and acoustic device using same

Номер: US20140087132A1

Автор: Jing He, Xing-Zhi Huang

Принадлежит: AAC Acoustic Technologies Shenzhen Co Ltd, American Audio Component Shenzhen Co Ltd

The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyethylene naphthalate film, and a thermoplastic polyurethance elastomer attached to one surface of the polyethylene naphthalate film.

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Номер записи: 15

27-03-2014 дата публикации

Compound membrane and acoustic device using same

Номер: US20140087148A1

Автор: Jing He, Xing-Zhi Huang

Принадлежит: AAC Acoustic Technologies Shenzhen Co Ltd, American Audio Component Shenzhen Co Ltd

The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyphenylene sulfide film, and a thermoplastic polyurethance elastomer attached to one surface of the polyphenylene sulfide film.

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Номер записи: 16

13-01-2022 дата публикации

Sound producing package structure and manufacturing method thereof

Номер: US20220009768A1

Автор: Chiung C. Lo, Jemm Yue Liang

Принадлежит: Xmems Labs Inc

A sound producing package structure includes a plurality of chips disposed within a cavity. The chips includes a first chip and a second chip, the first chip includes a first sound producing membrane and a first actuator attached to the first sound producing membrane, and a second chip includes a second sound producing membrane and a second actuator attached to the second sound producing membrane. The first sound producing membrane and the second sound producing membrane are actuated toward a center of the cavity in a synchronous fashion so as to produce a sound pressure.

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Номер записи: 17

13-01-2022 дата публикации

Acoustic reproduction device

Номер: US20220014844A1

Автор: Nobukazu Suzuki

Принадлежит: Sony Group Corp

Provided is an acoustic reproduction device including: a first acoustic reproduction unit; and a second acoustic reproduction unit, in which the first acoustic reproduction unit includes: a housing having a cylindrical shape; and a vibration exciter that vibrates an end surface of one end of the housing, the second acoustic reproduction unit includes: a speaker unit; and a diffuser that changes a radiation direction of sound reproduced by the speaker unit, the housing, the speaker unit, and the diffuser are arranged so as to be substantially coaxial with a predetermined axis, and the diffuser causes a radiation direction of sound reproduced by the speaker unit and a radiation direction of sound from the first acoustic reproduction unit to be substantially a same.

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Номер записи: 18

13-01-2022 дата публикации

MEMS SPEAKER

Номер: US20220014853A1

Автор: HATIPOGLU Gokhan, HRUDEY Peter C., ILLKORUR Onur I., VIEITES Pablo Seoane, Wilk Christopher

Принадлежит:

Aspects of the subject technology relate to electronic devices having speakers such as microelectromechanical systems (MEMS) speakers. A MEMS speaker can include an electrostatically driven, corrugated MEMS structure to move air without a magnet, coil, or traditional speaker membrane, and thus provide a low-power, compact speaker with a large acoustically active area in a small volume. Neighboring folds in the corrugated MEMS structure may form pairs of MEMS electrodes that can be pushed together and/or pulled apart to deform the MEMS structure in a breathing motion that generates pressure differentials on opposing sides of the corrugated MEMS structure to generate sound. Additional modes of operation are described. 1. A speaker , comprising:a front volume;a back volume; anda corrugated microelectromechanical systems (MEMS) structure disposed between the front volume and the back volume.2. The speaker of claim 1 , wherein the corrugated MEMS structure comprises a single contiguous structure that extends claim 1 , in a first dimension claim 1 , from a first edge to a second edge claim 1 , and includes a plurality of alternating folds disposed between the first edge and the second edge.3. The speaker of claim 2 , wherein the corrugated MEMS structure comprises a plurality of MEMS electrodes claim 2 , each forming a part of the single contiguous structure claim 2 , the part extending in a second dimension perpendicular to the first dimension claim 2 , between a corresponding pair of the plurality of alternating folds.4. The speaker of claim 3 , wherein first edge and second edge are fixed.5. The speaker of claim 4 , wherein the first edge and the second edge are each fixed to a corresponding resilient connector.6. The speaker of claim 3 , wherein the first edge and the second edge are floating edges.7. The speaker of claim 6 , further comprising at least one anchor beam that extends from one of the plurality of alternating folds to a support structure.8. The speaker of ...

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Номер записи: 19

05-01-2017 дата публикации

Micro-electromechanical sound transducer with sound energy-reflecting interlayer

Номер: US20170006381A1

Автор: Andrea Rusconi Clerici, Ferruccio Bottoni

Принадлежит: USound GmbH

A MEMS sound transducer for at least one of generating and detecting sound waves in air in an audible wavelength spectrum includes a carrier substrate, a cavity defined in the carrier substrate, the cavity defining at least one opening, and a multilayered piezoelectric membrane structure spanning over the opening of the cavity and having an edge area connected with the carrier substrate so that with respect to the carrier substrate the membrane structure is capable of vibrating to at least one of generate and/or and detect sound energy, wherein the membrane structure has in cross-section at least in some areas a first piezo layer spaced from a second piezo layer. An interlayer is arranged in an area between the first and second piezo layers, the interlayer being made of at least one of silicon oxide, silicon nitride and polysilicon, the interlayer being configured so that sound energy can be reflected in the direction of at least one interface of the membrane structure adjacent to the air.

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Номер записи: 20

04-01-2018 дата публикации

Electrodynamic Transducer in Ultrasonic Mode

Номер: US20180007471A1

Автор: Bauer Heribert, Flock Markus, HINTENNACH Andreas, Klaubauf Christian, Lembacher Christian, Reining Friedrich, Timmerer Armin, Zangl Stefan

Принадлежит:

An electrodynamic transducer having a coil, a membrane, and a plate is disclosed, wherein the transducer is adapted to generate a sound pressure level in the human-audible acoustic range and the ultrasonic range so that the transducer may be used as a speaker and an ultrasonic proximity sensor. The transducer may be adapted to generate a sound pressure level above about 88 dB between 20 kHz and 70 kHz. The plate may include a structural rigidity increasing feature such as a domed portion or a population of ribs, which may increase the generated sound pressure level in the ultrasonic range. The transducer may also include a front resonator which may be used to further tune and/or increase the generated sound pressure level in the ultrasonic range. 1. An electrodynamic transducer , comprising:a coil;a membrane; anda plate, wherein the electrodynamic transducer is adapted to generate a sound pressure level in the human-audible acoustic range and the ultrasonic range.2. The electrodynamic transducer of claim 1 , wherein the electrodynamic transducer is adapted to generate a sound pressure level above about 88 dB between 20 kHz and 70 kHz.3. The electrodynamic transducer of claim 1 , wherein the electrodynamic transducer is adapted to generate a sound pressure level of between about 90 dB and 95 dB between 20 kHz and 70 kHz.4. The electrodynamic transducer of claim 1 , wherein the coil is adhered to the membrane claim 1 , and the membrane is adhered to the plate.5. The electrodynamic transducer of claim 4 , further comprising:a coil fixation material for adhering the coil to the membrane; anda plate fixation material for adhering the membrane to the plate.6. The electrodynamic transducer of claim 5 , wherein the coil fixation material is a glue claim 5 , double-sided tape claim 5 , or heat activated film.7. The electrodynamic transducer of claim 5 , wherein the plate fixation material is a glue claim 5 , double-sided tape claim 5 , or heat activated film.8. The ...

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Номер записи: 21

04-01-2018 дата публикации

MEMS DEVICE AND PROCESS

Номер: US20180007473A1

Автор: CARGILL Scott Lyall

Принадлежит: Cirrus Logic International Semiconductor Ltd.

The application describes MEMS transducers comprising a flexible membrane supported at a supporting edge relative to a substrate and further comprising one or more unbound edges. The shape of the unbound edge is selected so that the flexible membrane tends to bend along more than one bend axis in the region of the supporting edge. 1. A MEMS transducer comprising a flexible membrane supported at a supporting edge relative to a substrate , the flexible membrane comprising a first unbound edge , wherein the first unbound edge traces a path from a first endpoint at , or near , a first end of the supporting edge ,wherein a first path segment is defined between first and second path points on the first unbound edge,and wherein the first path segment traces a path which varies in distance from a straight line path between the first and second path points, the first path segment comprising at least two bendpoints at which the flexible membrane tends to bend in response to a given deflection of the flexible membrane.2. A MEMS transducer as claimed in claim 1 , comprising a second unbound edge which traces a path from a first endpoint at claim 1 , or near claim 1 , a second end of the supporting edge claim 1 ,wherein a second path segment of the second unbound edge is defined between first and second path points on the second unbound edge,and wherein the second path segment traces a path which varies in distance from a straight line path between the first and second path points, the second path segment comprising one or more bendpoints at which the flexible membrane tends to bend in response to a given deflection of the flexible membrane.3. A MEMS transducer as claimed in claim 2 , wherein a bendpoint of the first segment corresponds to a bendpoint of the second segment claim 2 , said corresponding bendpoints forming a pair of bendpoints.4. A MEMS transducer as claimed in claim 3 , wherein a line intersecting the pair of bendpoints defines a bend axis of the flexible membrane ...

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Номер записи: 22

04-01-2018 дата публикации

MEMS DEVICES AND PROCESSES

Номер: US20180007474A1

Автор: BOYD Euan James, CARGILL Scott Lyall, JENKINS Colin Robert

Принадлежит: Cirrus Logic International Semiconductor Ltd.

A MEMS transducer structure comprises a substrate comprising a cavity. A membrane layer is supported relative to the substrate to provide a flexible membrane. A peripheral edge of the cavity defines at least one perimeter region that is convex with reference to the center of the cavity. The peripheral edge of the cavity may further define at least one perimeter region that is concave with reference to the center of the cavity. 1. A MEMS transducer structure comprising:a substrate, the substrate comprising a cavity;a membrane layer supported relative to the substrate to provide a flexible membrane;wherein a peripheral edge of the cavity defines at least one perimeter region that is convex with reference to the center of the cavity.2. A MEMS transducer as claimed in claim 1 , wherein the peripheral edge of the cavity further defines at least one perimeter region that is concave with reference to the center of the cavity.3. A MEMS transducer as claimed in claim 1 , wherein the membrane comprises an active central region and a plurality of support arms which extend laterally from the active central region for supporting the active central region of the membrane.4. A MEMS transducer as claimed in claim 3 , wherein a convex portion of the peripheral edge of the cavity underlies a center region of a support arm of the membrane.5. A MEMS transducer as claimed in claim 4 , wherein the apex of a convex portion substantially underlies the center of a supporting arm in a width wise direction.6. A MEMS transducer as claimed in claim 3 , wherein a concave portion of the peripheral edge of the cavity underlies an edge of a support arm.7. A MEMS transducer as claimed in claim 3 , wherein a convex portion is positioned around the periphery of the cavity such that claim 3 , upon deflection of the flexible membrane during use towards the cavity claim 3 , the flexible membrane makes contact with the convex portion of the peripheral edge of the cavity prior to another portion of the ...

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Номер записи: 23

02-01-2020 дата публикации

Commercial Lighting Integrated with Loudspeakers for Sound Masking, Paging or Music

Номер: US20200007968A1

Автор: Bursal Faruk, Calisi Christopher, Cook Gordon V., Fleming Robert, Saunders Gregory

Принадлежит:

A commercial lighting system, the system comprising, an integral housing adapted to be coupled to a ceiling of a building, a lighting unit mounted to the integral housing and a loudspeaker assembly mounted to the integral housing, the loudspeaker assembly comprising a low directivity index, and oriented to provide an acoustic sound signal from the integral housing to a listener in an area of the building comprising the ceiling. 1. A commercial lighting system , the system comprising:an integral housing adapted to be coupled to a ceiling of a building;a lighting unit mounted to the integral housing; anda loudspeaker assembly mounted to the integral housing, the loudspeaker assembly comprising a low directivity index, and oriented to provide an acoustic sound signal from the integral housing to a listener in an area of the building comprising the ceiling.2. The commercial lighting system of wherein the loudspeaker assembly is operative to emit the acoustic sound signal corresponding to an electrical sound signal claim 1 , the electrical sound signal comprising at least one of a sound masking signal claim 1 , a music signal and a paging signal.3. The commercial lighting system of wherein the loudspeaker assembly comprises a voice coil coupled to an audio emitter operative to emit the acoustic sound signal corresponding to the electrical sound signal claim 2 , the audio emitter comprising a cone emitter.4. The commercial lighting system of wherein at least part of the lighting unit is positioned to deflect the acoustic sound signal claim 1 , emitted from the loudspeaker assembly claim 1 , prior to reaching the listener in the area of the building.5. The commercial lighting system of wherein the loudspeaker assembly is oriented to provide the acoustic sound signal in a direct path to the listener.6. The commercial lighting system of wherein the loudspeaker assembly comprises a direct field sound masking loudspeaker assembly.7. The commercial lighting system of wherein ...

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Номер записи: 24

14-01-2016 дата публикации

METHOD FOR MOLDING PIEZOELECTRIC POLYMER AND MOLDED BODY

Номер: US20160008851A1

Автор: KARASAWA Yasuyuki, Tajitsu Yoshiro

Принадлежит: A SCHOOL CORPORATION KANSAI UNIVERSITY

A method for molding capable of molding a piezoelectric polymer into polymer piezoelectric materials having various shapes is provided. A vibration generator using a polymer piezoelectric material and a speaker capable of generating a high sound pressure and achieving flat sound pressure-frequency characteristics are provided. A material formed from a piezoelectric polymer is molded at a temperature not less than the glass transition temperature and less than the crystallization temperature of the piezoelectric polymer and is then heat-treated at a temperature not less than the crystallization temperature of the piezoelectric polymer. A vibration generator comprising a piezoelectric portion formed from a piezoelectric polymer; a first electrode disposed on a first main surface of the piezoelectric portion; and a second electrode disposed on a second main surface of the piezoelectric portion, which has a piezoelectric modulus of 0.5 pC/N or more and satisfies at least one of the following (a) to (c): 1. A method for molding a piezoelectric polymer , wherein a material formed from a piezoelectric polymer is molded by using a vacuum molding method at a temperature not less than the glass transition temperature and less than the crystallization temperature of the piezoelectric polymer and is then heat-treated at a temperature not less than the crystallization temperature of the piezoelectric polymer.2. (canceled)3. The method for molding according to claim 1 , wherein the vacuum molding is performed while the material formed from a piezoelectric polymer is being pushed in by an auxiliary plug.4. The method for molding according to claim 1 , wherein the piezoelectric polymer is polylactic acid or a copolymer containing lactic acid as a constituent unit.5. The method according to claim 1 , wherein the molding temperature is about 50 to 105° C.6. The method according to claim 1 , wherein the temperature of the heat treatment is not less than the crystallization temperature ...

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Номер записи: 25

10-01-2019 дата публикации

Underwater flextensional transducer

Номер: US20190013001A1

Автор: Alan ELLIOTT, Andrew Bond

Принадлежит: THALES HOLDINGS UK PLC

In accordance with embodiments of the present disclosure, a flextensional transducer for underwater operation includes a driving element and a stave. The stave is made from a material with elastic properties and has a porous structure. The porous structure is adapted to be modelled such that when in use, said porous structure of the stave is of an arbitrary alignment with respect to, for instance, the driving element, and has a degree of porosity. The degree of porosity is such that the elastic properties and vibrational frequency response of the stave can be customised with respect to its intended use.

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Номер записи: 26

12-01-2017 дата публикации

MOBILE TERMINAL

Номер: US20170013333A1

Автор: Mizuno Hayato, NAKAMURA Kotaro

Принадлежит:

A mobile terminal according to the present disclosure includes a housing member with a first sound hole, a film speaker and a speaker holder with a second sound hole. The film speaker includes a piezoelectric element and a resin film configured to vibrate with the piezoelectric element. The film speaker is located in the speaker holder. The second sound hole corresponds to the first sound hole and is located between the first sound hole and the film speaker. An inner edge which defines the second sound hole extends above the film speaker. A surface of the inner edge facing the film speaker is inclined such that at least a part of the inner edge decreases in thickness toward a leading end of the inner edge. 1. A mobile terminal comprising:a housing member with a first sound hole;a film speaker including a piezoelectric element and a resin film configured to vibrate with the piezoelectric element; anda speaker holder with a second sound hole, the film speaker being located on the speaker holder, the second sound hole corresponding to the first sound hole and being located between the first sound hole and the film speaker,an inner edge which defines the second sound hole extending above the film speaker, a surface of the inner edge facing the film speaker being inclined such that at least a part of the inner edge decreases in thickness toward a leading end of the inner edge.2. The mobile terminal according to claim 1 , wherein the surface of the inner edge facing the film speaker is inclined such that a part of the inner edge facing the piezoelectric element decreases in thickness toward the leading end of the inner edge.3. The mobile terminal according to claim 1 , wherein claim 1 , the surface of the inner edge facing the film speaker is inclined based on a first length from an end of the film speaker to the leading end of the inner edge and a second length from the film speaker to the second sound hole such that the inner edge decreases in thickness toward the ...

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Номер записи: 27

12-01-2017 дата публикации

MOBILE TERMINAL

Номер: US20170013334A1

Автор: Hidaka Mizuho, Morioka Norikazu

Принадлежит:

A mobile terminal according to the present disclosure includes a battery, a frame, a film speaker, a speaker holder, and a hold-down. The film speaker is surrounded by the frame and located at the back side of the battery. To the speaker holder, the frame is affixed on the side of a first surface of the film speaker. The hold-down is configured to press at least a part of the frame on the side of a second surface of the film speaker between the film speaker and the battery from the second surface of the film speaker toward the speaker holder. 1. A mobile terminal comprising:a battery;a frame;a film speaker surrounded by the frame and located at the back side of the battery;a speaker holder to which the frame is affixed on the side of a first surface of the film speaker; anda hold-down configured to press at least a part of the frame on the side of a second surface of the film speaker between the film speaker and the battery from the second surface of the film speaker toward the speaker holder.2. The mobile terminal according to claim 1 , wherein a notch is formed on the hold-down.3. The mobile terminal according to claim 1 , further comprising a battery holder configured to hold the battery claim 1 , whereinthe hold-down is located on the battery holder so as to face the film speaker. The present application is a continuation based on PCT Application No. PCT/JP2015/059437 filed on Mar. 26, 2015, which claims the benefit of Japanese Application No. 2014-062930, filed on Mar. 26, 2014. PCT Application No. PCT/JP2015/059437 is entitled “Mobile Terminal Device”, and Japanese Application No. 2014-062930 is entitled “Mobile Terminal”. The content of which are incorporated by reference herein in their entirety.Embodiments of the present disclosure relate to mobile terminals, and more particularly relate to a mobile terminal with a speaker built therein.Conventionally-known mobile terminal devices have been reduced in size and thickness.A mobile terminal according to the ...

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Номер записи: 28

12-01-2017 дата публикации

MULTI-DIAPHRAGM SPEAKER SYSTEM

Номер: US20170013362A1

Автор: Jiang Chao, Li Zhi, YANG Jianbin

Принадлежит:

A multi-diaphragm speaker system comprises a speaker apparatus and a front/rear cavity sealing apparatus. The speaker apparatus comprises at least four diaphragms. Cavities of the speaker apparatus are formed between every two adjacent diaphragms of the speaker apparatus. The cavities that are spaced apart from each other jointly form a first acoustic cavity of the speaker apparatus. The cavities adjacent to the first acoustic cavity form a second acoustic cavity of the speaker apparatus. The first acoustic cavity and the second acoustic cavity are separated via the front/rear cavity sealing apparatus. Utilization of the present utility model solves the problem of speaker front/rear cavity separation. 1. A multi-diaphragm speaker system , characterized by comprising a speaker device and a front-rear cavity sealing device; wherein ,the speaker device comprises at least four diaphragms;a plurality of cavities of the speaker device are respectively formed between every two adjacent diaphragms of the speaker device, wherein, cavities that are spaced apart from each other jointly form a first acoustic cavity of the speaker device, and a cavity or cavities adjacent to the first acoustic cavity form a second acoustic cavity of the speaker device; andthe first acoustic cavity and the second acoustic cavity are separated through the front-rear cavity sealing device.2. The multi-diaphragm speaker system according to claim 1 , characterized in that claim 1 , the speaker device further comprises inner connecting rods and outer connecting rods;diaphragms located at odd-numbered positions are interconnected through the inner connecting rods to form a first group of diaphragms, the inner connecting rods connected with the diaphragms located at odd-numbered positions are connected through the outer connecting rods, and the diaphragms in the first group of diaphragms vibrate in a same direction;diaphragms located at even-numbered positions are interconnected through the inner ...

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Номер записи: 29

12-01-2017 дата публикации

Diaphragm and Suspension Edge Having Elastic Ribs, and Speaker

Номер: US20170013365A1

Автор: HUANG Hsinmin

Принадлежит:

A diaphragm and suspension edge includes inner and suspension edge portions. The inner suspension edge portion includes an inner suspension edge body, and one or more inner side elastic ribs protruding relative to the inner suspension edge body. Each inner side elastic rib forms a bulge on a first side of the inner suspension edge portion, and forms a flute on the opposite side. The outer suspension edge portion includes an outer suspension edge body, and one or more outer side elastic ribs protruding relative to the outer suspension edge body. Each outer side elastic rib forms a protrusion on a first side of the outer suspension edge portion, and forms a groove on the opposite side. The suspension edge restricts the displacement direction of the vibration unit of a speaker in the axial vibration direction thereof to prevent offset of the vibration unit. 166-. (canceled)67. A suspension edge for a speaker which comprise a vibration unit and a supporting frame , comprising:an inner suspension edge portion for connecting with the vibration unit, wherein said inner suspension edge portion comprises an inner suspension edge body and one or more inner side elastic ribs radially protruded from said inner suspension edge body, wherein each of said inner side elastic ribs forms a bulge on a first side of said inner suspension edge portion and a flute on an opposite side of; andan outer suspension edge portion for connecting with the supporting frame, wherein said outer suspension edge portion comprises an outer suspension edge body and one or more outer side elastic ribs radially protruded from said outer suspension edge body, wherein each of said outer side elastic ribs forms a protrusion on a first side of said outer suspension edge portion and a groove on an opposite side thereof.68. The suspension edge claim 67 , as recited in claim 67 , wherein said inner side elastic ribs are aligned with said outer side elastic ribs respectively.69. The suspension edge claim 67 , as ...

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Номер записи: 30

12-01-2017 дата публикации

SPEAKER

Номер: US20170013367A1

Автор: Jiang Chao, Li Zhi, YANG Jianbin

Принадлежит:

A speaker comprises at least four diaphragms, inner connecting rods, outer connecting rods, and a cavity sealing housing. Diaphragms spaced apart from each other respectively form a set of diaphragms. The two sets of diaphragms move relative to each other. Connecting points are provided on rigid domes of each of the diaphragms. The inner connecting rods are connected to the diaphragms via the connecting points on the domes. The inner connecting rods respectively connected to the two sets of diaphragms are connected one to another via different outer connecting rods. Cavities of the speaker are formed between adjacent diaphragms. Cavities spaced apart from each other jointly form a front acoustic cavity. The cavities adjacent to the front acoustic cavity form a rear acoustic cavity. The cavity sealing housing seals the front acoustic cavity/rear acoustic cavity, thus allowing separation of the front and rear acoustic cavities of the speaker. 1. A speaker comprising at least four diaphragms , inner connecting rods , outer connecting rods , and a cavity sealing housing , whereinall the diaphragms forms two groups of the diaphragms, and the diaphragms of the two groups are alternately arranged, and the two groups of the diaphragms move relative to each other; connecting points are provided on domes of each of the diaphragms, respectively, and the inner connecting rods are connected with the diaphragms via the connecting points on the domes, and the inner connecting rods, which are connected with the two groups of diaphragms, respectively, are connected with each other via different outer connecting rods, respectively; andcavities of the speaker are formed between adjacent diaphragms, and cavities that are spaced apart from each other jointly form a front acoustic cavity of the speaker, and the cavities adjacent to the front acoustic cavity form a rear acoustic cavity of the speaker, and the cavity sealing housing seals the front acoustic cavity or the rear acoustic ...

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Номер записи: 31

12-01-2017 дата публикации

Micro Speaker

Номер: US20170013377A1

Автор: Zhang Yang

Принадлежит: AAC Technologies Pte. Ltd.

A micro speaker is disclosed. The micro speaker includes a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome; a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap; a capacitor formed by the conductive dome and the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm. 1. A micro speaker , comprising:a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome;a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap;a capacitor formed by the conductive dome and the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.2. The micro speaker as described in claim 1 , wherein the conductive dome is an aluminum foil dome or a compound aluminum foil.3. The micro speaker as described in claim 1 , wherein the suspension is made of silica claim 1 , and includes a first part and a second part claim 1 , the first part is made of non-conductive silica and the second part is made of conductive silica claim 1 , the suspension further includes conductive pads located at the second part for electrically connecting with the conductive dome.4. The micro speaker as described in claim 1 , wherein the magnetic circuit system further includes a ...

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Номер записи: 32

12-01-2017 дата публикации

Micro Speaker

Номер: US20170013378A1

Автор: Zhang Yang

Принадлежит: AAC Technologies Pte. Ltd.

A micro speaker is disclosed. The micro speaker includes a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome; a conductive front cover located adjacent to and keeping a distance from the conductive dome; and a capacitor formed by the conductive dome and the conductive front cover for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm. 1. A micro speaker , comprising:a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome;a conductive front cover located adjacent to and keeping a distance from the conductive dome;a capacitor formed by the conductive dome and the conductive front cover for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.2. The micro speaker as described in claim 1 , wherein the conductive dome is an aluminum foil dome or a compound aluminum foil.3. The micro speaker as described in claim 1 , wherein the suspension is made of silica claim 1 , and includes a first part and a second part claim 1 , the first part is made of non-conductive silica and the second part is made of conductive silica claim 1 , the suspension further includes conductive pads located at the second part for electrically connecting with the conductive dome.4. The micro speaker as described in claim 1 , wherein the conductive front cover includes a lead wire for outputting electrical signals from the conductive front cover. The present invention relates to the field of electroacoustic transducers, more particularly to a micro speaker.The normal or typical method to detect the amplitude of the diaphragm of a speaker is linear estimation method. This type of method cannot detect the real-time amplitude of the diaphragm correctly.The present invention ...

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Номер записи: 33

12-01-2017 дата публикации

Micro Speaker

Номер: US20170013379A1

Автор: Zhang Yang

Принадлежит: AAC Technologies Pte. Ltd.

A micro speaker is disclosed. The micro speaker includes a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome; a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap. The conductive dome includes a number of units for forming capacitors together with the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm. 1. A micro speaker , comprising:a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome;a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap; whereinthe conductive dome includes a plurality of units isolated from each other, and each unit forms a capacitor together with the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement and unbalanced vibration of the diaphragm.2. The micro speaker as described in claim 1 , wherein the conductive dome includes 4 units and accordingly 4 capacitors are formed between the units of the conductive dome and the pole plate.3. The micro speaker as described in claim 1 , wherein the conductive dome is an aluminum foil dome or a compound aluminum foil.4. The micro speaker as described in claim 1 , wherein the suspension is made of silica claim 1 , and includes a first part and a second part claim ...

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Номер записи: 34

12-01-2017 дата публикации

Micro Speaker

Номер: US20170013380A1

Автор: Zhang Yang

Принадлежит: AAC Technologies Pte. Ltd.

A micro speaker is disclosed. The micro speaker includes a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome, the conductive dome including a plurality of units being isolated from each other; a conductive front cover located adjacent to and keeping a distance from the conductive dome, the conductive front cover including a plurality of units being isolated from each other; and a plurality of capacitors formed by the units of conductive front cover and the units of the conductive dome for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm. 1. A micro speaker , comprising:a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome, the conductive dome including a plurality of units being isolated from each other;a conductive front cover located adjacent to and keeping a distance from the conductive dome, the conductive front cover including a plurality of units being isolated from each other, the units of the conductive front cover being corresponding to the units of the conductive dome;a plurality of capacitors formed by the units of conductive front cover and the units of the conductive dome for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.2. The micro speaker as described in claim 1 , wherein an amount of the units of the conductive front cover is 4 claim 1 , an amount of the units of the conductive dome is 4 claim 1 , and 4 capacitors are accordingly formed by the units of the conductive front cover and the units of the conductive dome.3. The micro speaker as described in claim 1 , wherein the conductive dome is an aluminum foil dome or a compound aluminum foil.4. The micro speaker as described in claim 1 , wherein the ...

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Номер записи: 35

12-01-2017 дата публикации

Micro Speaker

Номер: US20170013381A1

Автор: Zhang Yang

Принадлежит: AAC Technologies Pte. Ltd.

A micro speaker is disclosed. The micro speaker includes a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome, the conductive dome including a plurality of units being isolated from each other; a conductive front cover located adjacent to and keeping a distance from the conductive dome; and a plurality of capacitors formed by the units of conductive dome and the conductive front cover for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm. 1. A micro speaker , comprising:a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome, the conductive dome including a plurality of units being isolated from each other;a conductive front cover located adjacent to and keeping a distance from the conductive dome;a plurality of capacitors formed by the units of conductive dome and the conductive front cover for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.2. The micro speaker as described in claim 1 , wherein an amount of the units of the conductive dome is 4 claim 1 , and 4 capacitors are accordingly formed by the units of the conductive dome and the conductive front cover.3. The micro speaker as described in claim 1 , wherein the conductive dome is an aluminum foil dome or a compound aluminum foil.4. The micro speaker as described in claim 1 , wherein the suspension is made of silica claim 1 , and includes a first part and a second part claim 1 , the first part is made of non-conductive silica and the second part is made of conductive silica claim 1 , the suspension further includes conductive pads located at the second part for electrically connecting with the conductive dome claim 1 , each unit of the conductive dome is electrically ...

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Номер записи: 36

12-01-2017 дата публикации

Micro Speaker

Номер: US20170013382A1

Автор: Zhang Yang

Принадлежит: AAC Technologies Pte. Ltd.,

A micro speaker is disclosed. The micro speaker includes a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome; a conductive front cover located adjacent to and keeping a distance from the conductive dome, the conductive front cover including a plurality of units being isolated from each other; and a plurality of capacitors formed by the units of conductive front cover and the conductive dome for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm. 1. A micro speaker , comprising:a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome;a conductive front cover located adjacent to and keeping a distance from the conductive dome, the conductive front cover including a plurality of units being isolated from each other;a plurality of capacitors formed by the units of conductive front cover and the conductive dome for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.2. The micro speaker as described in claim 1 , wherein an amount of the units of the conductive front cover is 4 claim 1 , and 4 capacitors are accordingly formed by the units of the conductive front cover and the conductive dome.3. The micro speaker as described in claim 1 , wherein the conductive dome is an aluminum foil dome or a compound aluminum foil.4. The micro speaker as described in claim 1 , wherein the suspension is made of silica claim 1 , and includes a first part and a second part claim 1 , the first part is made of non-conductive silica and the second part is made of conductive silica claim 1 , the suspension further includes conductive pads located at the second part for electrically connecting with the conductive dome claim 1 , each unit of the conductive front ...

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Номер записи: 37

12-01-2017 дата публикации

Micro Speaker

Номер: US20170013383A1

Автор: Yang Zhang

Принадлежит: AAC Technologies Pte Ltd

A micro speaker is disclosed. The micro speaker includes a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome; a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part and including a plurality of units, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap; capacitors formed by the conductive dome and the units of the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.

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Номер записи: 38

03-02-2022 дата публикации

AN INTERIOR COMPONENT OF A VEHICLE

Номер: US20220032856A1

Автор: CANNON Carter Scott, KIM Sung-Uk, NOVOTNY Marek

Принадлежит:

An interior component of a vehicle comprises a carrier having a front face directed toward a passenger compartment of the vehicle and an opposite rear face; a speaker including an at least partially transparent diaphragm and a transducer coupled to the diaphragm. Movement of the transducer causes vibration of the diaphragm to generate sound by vibration of the diaphragm, the diaphragm having a front face directed towards the passenger compartment and an opposite rear face. The carrier provides a support along at least part of the periphery of the diaphragm where the diaphragm is attached to the carrier where the front face and the rear face of the diaphragm are free of the carrier across a part of the diaphragm surface so that the diaphragm is suspended in the carrier of the interior component. 1. An interior component of a vehicle , the interior component comprising:a carrier having a front face directed toward a passenger compartment of the vehicle and an opposite rear face;a speaker including an at least partially transparent diaphragm and a transducer coupled to the diaphragm, wherein movement of the transducer causes vibration of the diaphragm to generate sound by vibration of the diaphragm, the diaphragm having a front face directed towards the passenger compartment and an opposite rear face;wherein the carrier provides a support along at least part of the periphery of the diaphragm where the diaphragm is attached to the carrier wherein the front face and the rear face of the diaphragm are free of the carrier across a part of the diaphragm surface so that the diaphragm is suspended in the carrier of the interior component.2. The interior component of claim 1 , wherein the diaphragm is suspended in the interior component by providing in the carrier open spaces at the front face and the rear face of the diaphragm.3. The interior component of claim 1 , wherein the carrier provides support along an entire periphery of the diaphragm.4. The interior component of ...

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Номер записи: 39

14-01-2016 дата публикации

Audio Device with a Stiffening Structure

Номер: US20160014247A1

Автор: Behles Thorsten, Jyrkinen Mikko T., Kemppinen Pasi Tuomo Antero

Принадлежит:

An apparatus includes a first portion configured to carry one or more components of the apparatus and at least one wall extending between two or more sides of the first portion; an actuator located in the first portion adjacent to the at least one wall; and a movable section on the first portion and configured to be actuated by the actuator. At least the first portion and the movable section define a speaker. 1. An apparatus , comprising:a first portion configured to carry one or more components of the apparatus, and at least one wall extending between two or more sides of the first portion;an actuator located in the first portion adjacent to the at least one wall; anda movable section configured to be actuated by the actuator;wherein at least the first portion and the movable section define a speaker.2. The apparatus of claim 1 , further comprising a front window over the movable section and through which a user can interact with the apparatus.3. The apparatus of claim 1 , wherein the movable section comprises an organic light emitting diode display.4. The apparatus of claim 1 , further comprising a flexible suspension between at least a portion of a peripheral edge of the movable section and a second portion of the apparatus.5. The apparatus of claim 1 , further comprising an echo cancellation tape between the movable section and the first portion.6. The apparatus of claim 1 , further comprising a shield plate mounted within the first portion and integral with the at least one wall.7. The apparatus of claim 1 , wherein the first portion is fabricated from one or more of aluminum claim 1 , aluminum alloy claim 1 , stainless steel claim 1 , magnesium claim 1 , magnesium alloy claim 1 , titanium claim 1 , titanium alloy claim 1 , carbon fiber composite claim 1 , and ceramic.8. The apparatus of claim 1 , wherein the actuator is a piezoelectric actuator.9. The apparatus of claim 8 , wherein the piezoelectric actuator is configured to generate a force of about 0.2 N to ...

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Номер записи: 40

11-01-2018 дата публикации

SPEAKER MODULE

Номер: US20180014098A1

Автор: SHAO Minghui, YANG Jianbin

Принадлежит:

The present invention discloses a speaker module, comprising: a speaker assembly, a module shell and a front cover. The module shell is configured to bear the speaker assembly, and comprises a first shell and a second shell, wherein the first shell is doped with a thermally conductive filler. The front cover is configured to cooperate with the module shell to encapsulate the speaker assembly. The speaker module provided by the present invention can quickly discharge heat generated by the speaker assembly during operation through the module shell to prevent overheat of the speaker assembly, thereby avoiding performance loss of a speaker due to high temperature. 1. A speaker module , comprising:a speaker assembly; anda module shell bearing the speaker assembly, wherein a material of the module shell is doped with a thermally conductive filler.2. The speaker module of claim 1 , wherein the module shell comprises a first shell and a second shell; the second shell and the first shell are mounted in a combined manner; and a material of the first shell is doped with the thermally conductive filler.3. The speaker module of claim 2 , wherein a material of the second shell is doped with the thermally conductive filler.4. The speaker module of claim 2 , wherein the module shell comprises a front cover mounted on the first shell or the second shell; and a material of the front cover is doped with the thermally conductive filler.5. The speaker module of claim 1 , wherein the material of the module shell is plastic; and during injection molding claim 1 , the plastic is doped with particles or powder of the thermally conductive filler.6. The speaker module of claim 1 , wherein the speaker assembly comprises a independent shell; and a material of the independent shell is doped with the thermally conductive filler.7. The speaker module of claim 1 , wherein the thermally conductive filler is silicon carbide claim 1 , fibrous carbon powder claim 1 , scaly carbon powder claim 1 , boron ...

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Номер записи: 41

11-01-2018 дата публикации

SPEAKER MODULE

Номер: US20180014127A1

Автор: Chen Gang, Zhang Zhibing

Принадлежит:

The present invention discloses a speaker module. The speaker module comprises an inner cavity defined by a shell, and a first induction coil. A single speaker piece is provided in the inner cavity of the shell, the first induction coil is configured to be electrically connected with a terminal device, and a second induction coil, which corresponds to the first induction coil and is configured to be electrically connected with a voice coil in the single speaker piece, is also provided on the shell. According to the speaker module, an output end of a complete machine and the voice coil are conducted through the first induction coil and the second induction coil; and by the adoption of such a structure, the space of the module can be greatly saved, and a lighter and thinner complete machine can be developed. In addition, the problems, such as poor performance due to the change of the resistance value in a traditional electro-acoustic connection way, can be solved. By the adoption of the structure, the first induction coil is allowed to be provided outside the inner cavity, the shell can be sealed at a time, wiring from the outside to the inside is not needed any more. In this way, secondary sealing of a lead position is avoided, production and transportation of the speaker module are greatly simplified, and assembly between the speaker module and the terminal device is also greatly simplified. 1. A speaker module , comprising an inner cavity defined by a shell , and a first induction coil , wherein a single speaker piece is provided in the inner cavity of the shell , the first induction coil is configured to be electrically connected with a terminal device , and a second induction coil , which corresponds to the first induction coil and is configured to be electrically connected with a voice coil in the single speaker piece , is also provided on the shell.2. The speaker module according to claim 1 , wherein the first induction coil is provided opposite to the second ...

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Номер записи: 42

14-01-2016 дата публикации

Speaker and diaphragm thereof

Номер: US20160014518A1

Автор: Shih-Tung Liu

Принадлежит: Cheng-Yu Hsieh, Chun-Ting Chen, Shih-Tung Liu

The instant disclosure provides a speaker which includes a support structure, a diaphragm, and a coil. The upper frame of the support structure has an opening formed thereon. The diaphragm is disposed on the upper frame of the support structure and located at the peripheral portions of the opening The diaphragm has a substrate layer and a magnetic layer formed thereon. The coil is disposed on the lower frame of the support structure and opposite to the diaphragm. The coil drives the diaphragm to vibrate for sound generation by electromagnetic induction when an electrical current is introduced through the coil.

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Номер записи: 43

14-01-2016 дата публикации

Speaker diaphragm

Номер: US20160014520A1

Автор: Teizo OBA, Yuichi Miura

Принадлежит: Mogami Denki Corp, Pioneer Corp

Provided is an inexpensive speaker diaphragm which can suppress inter-layer peeling. A speaker diaphragm includes a first diaphragm layer and a second diaphragm layer which are respectively configured by sheet-forming bodies of materials and stacked to each other, and the first diaphragm layer and the second diaphragm layer are integrally formed in a boundary portion.

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Номер записи: 44

14-01-2016 дата публикации

TRANSDUCER AND ELECTRONIC DEVICE INCLUDING THE SAME

Номер: US20160014521A1

Автор: HAN Jongheon, JO Mingyeong, KIM Ilnam, LEE Changhoon

Принадлежит:

A transducer and electronic device including the same are disclosed. In one aspect, the transducer includes a first electrode and a membrane arranged over the first electrode and spaced apart from the first electrode. The membrane at least partially overlaps the first electrode. The transducer also includes a first support member that supports the membrane. The membrane includes a vibrating portion that is movable in a direction substantially perpendicular to the membrane and a fixed portion that is supported by the first support member. The first support member is configured to adjust the distance between the fixed portion and the first electrode. 1. A transducer , comprising:a first electrode;a membrane arranged over the first electrode and spaced apart from the first electrode, wherein the membrane at least partially overlaps the first electrode; anda first support member that supports the membrane such that the membrane is spaced apart from the first electrode,wherein the membrane comprises i) a vibrating portion that is movable in a direction substantially perpendicular to the membrane and ii) a fixed portion that is supported by the first support member, andwherein the first support member is configured to adjust the distance between the fixed portion and the first electrode.2. The transducer of claim 1 , wherein the first support member is further configured to adjust its height when an electrical signal is applied to the first support member.3. The transducer of claim 2 , wherein the first support member comprises an electroactive polymer (EAP).4. The transducer of claim 1 , further comprising:a second electrode that is arranged over the membrane and spaced apart from the membrane, wherein the second electrode at least partially overlaps the membrane; anda second support member that supports the second electrode such that the second electrode is spaced apart from the membrane.5. The transducer of claim 4 , wherein the second support member is configured to ...

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Номер записи: 45

14-01-2016 дата публикации

SPEAKER DIAPHRAGM, SPEAKER, DEVICE, AND METHOD FOR MANUFACTURING SPEAKER DIAPHRAGM

Номер: US20160014522A1

Автор: Matsumura Toshiyuki, Saiki Shuji

Принадлежит:

A speaker diaphragm includes: a vibrator; and a suspension adhered to an outer peripheral part of the vibrator and supporting the vibrator so that the vibrator can vibrate, at least part of the suspension including a top surface member constituting a top surface part of the suspension, a rear surface member constituting a rear surface part of the suspension, and an intermediate member between the top surface member and the rear surface member, these members being stacked, the intermediate member having a rigidity lower than that of at least one of the top surface member and the rear surface member, the top surface member having one or more first holes, the rear surface member having one or more second holes, and at least some of the first holes and second holes being dispose so as to overlap across the intermediate member in a direction in which the members are stacked. 1. A speaker diaphragm comprising:a vibrator; anda suspension that is adhered to an outer peripheral part of the vibrator and supports the vibrator so that the vibrator is capable of vibrating, whereinat least part of the suspension includes a top surface member that constitutes a top surface part of the suspension, a rear surface member that constitutes a rear surface part of the suspension, and an intermediate member disposed between the top surface member and the rear surface member, the top surface member, the rear surface member, and the intermediate member being stacked on one another,a rigidity of the intermediate member is lower than that of at least one of the top surface member and the rear surface member,the top surface member has one or more first holes,the rear surface member has one or more second holes, andat least some of the one or more first holes and the one or more second holes are disposed so as to overlap each other across the intermediate member in a direction in which the top surface member, the rear surface member, and the intermediate member are stacked.2. The speaker ...

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Номер записи: 46

10-01-2019 дата публикации

PANEL BOTTOM MEMBER AND DISPLAY DEVICE INCLUDING THE SAME

Номер: US20190014402A1

Автор: AHN Yi Joon, CHU Hye Yong, Kim Sung Chul, NOH Jung Hun, SONG Keun Kyu

Принадлежит:

A panel bottom member includes a light absorbing member, a top bonding layer which is positioned at the top of the light absorbing member, a first vibration sound element which is positioned below the light absorbing member and bonded to the light absorbing member, a buffer member which is positioned below the light absorbing member and does not overlap with the first vibration sound element, and an interlayer bonding layer which is positioned between the light absorbing member and the buffer member. 1. A panel bottom member , comprising:a light absorbing member;a top bonding layer which is positioned on the light absorbing member;a first vibration sound element which is positioned below the light absorbing member and bonded to the light absorbing member;a buffer member which is positioned below the light absorbing member and does not overlap with the first vibration sound element; andan interlayer bonding layer which is positioned between the light absorbing member and the buffer member.2. The panel bottom member of claim 1 ,wherein the interlayer bonding layer is further positioned between the light absorbing member and the first vibration sound element and the first vibration sound element is bonded to the light absorbing member by a medium of the interlayer bonding layer.3. The panel bottom member of claim 1 , further comprising:a bonding member which is positioned between the first vibration sound element and the light absorbing member and spaced apart from the interlayer bonding layer, wherein the interlayer bonding layer does not overlap with the first vibration sound element and the first vibration sound element is bonded to the light absorbing member by a medium of the bonding member.4. The panel bottom member of claim 3 ,wherein the bonding member includes a double-sided bonding tape.5. The panel bottom member of claim 1 ,wherein the first vibration sound element includes a first electrode, a second electrode, and a vibration material layer positioned ...

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Номер записи: 47

15-01-2015 дата публикации

DUAL-DIAPHRAGM ACOUSTIC TRANSDUCER

Номер: US20150016656A1

Автор: CHANG Chao-Sen, CHANG Yong-Shiang, CHEN Jen-Yi, Wang Chun-Chieh

Принадлежит:

A dual-diaphragm acoustic transducer includes a substrate defining an opening, an inner diaphragm and an outer diaphragm concentrically mounted at one same side of the substrate corresponding to the opening of the substrate, and a plurality of elastic supporting members connected between the outer perimeter of the inner diaphragm and the inner perimeter of the outer diaphragm. Thus, when a sound wave enters the opening of the substrate, the sound wave pressure forces the outer diaphragm to displace and to carry the inner diaphragm to move, and the inner diaphragm itself will also be forced by the sound wave pressure to have a larger displacement than the outer diaphragm, enhancing the sensitivity. Further, using the inner and outer diaphragms to respond to different sound wave pressures can enhance the sound wave pressure sensing range. 1. A dual-diaphragm acoustic transducer , comprising:a substrate comprising a first side, a second side opposite to said first side, and an opening cut through said first side and said second side;a sound wave sensing unit mounted at said first side of said substrate corresponding to said opening, said sound wave sensing unit comprising an inner diaphragm and an outer diaphragm surround said inner diaphragm; anda support unit comprising at least two first elastic supporting members connected between said inner diaphragm and said outer diaphragm of said sound wave sensing unit.2. The dual-diaphragm acoustic transducer as claimed in claim 1 , wherein each said first elastic supporting member comprising two first connection segments and one first continuously curved segment claim 1 , said two first connection segments being respectively connected to the outer perimeter of said inner diaphragm and the inner perimeter of said outer diaphragm claim 1 , said first continuously curved segment being connected between said two first connection segments.3. The dual-diaphragm acoustic transducer as claimed in claim 1 , wherein said support unit ...

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Номер записи: 48

15-01-2015 дата публикации

VIBRATING DIAPHRAGM AND SOUNDER USING THE SAME

Номер: US20150016657A1

Автор: She Chunmei, Song Wei

Принадлежит:

A diaphragm and a sounder using the same are disclosed in the present disclosure. The diaphragm includes a suspension portion and a dome assembled with the suspension portion. The dome includes a polyethylene terephthalate (PET) layer, a middle layer and an adhesive layer, with the middle layer sandwiched between the PET layer and the adhesive layer. The middle layer is formed with a first through hole for adjusting the deformation amount of the diaphragm. The present disclosure can improve the flatness of the dome and prevent deformation of the dome after the vibration. 1. A diaphragm for a sounder , comprising:a suspension portion, anda dome assembled with the suspension portion, the dome comprising:a polyethylene terephthalate (PET) layer,an adhesive layer; anda middle layer sandwiched between the PET layer and the adhesive layer, the middle layer formed with a first through hole for adjusting deformation amount of the diaphragm.2. The diaphragm of claim 1 , wherein the PET layer is adhered to the middle layer by means of the adhesive material.3. The diaphragm of claim 1 , wherein the adhesive layer is formed with a second through hole aligning with the first through hole of the middle layer.4. The diaphragm of claim 1 , wherein the dome is long and narrow claim 1 , and the middle layer is provided with a plurality of first through holes arranged along a major axis direction of the dome.5. The diaphragm of claim 1 , wherein the middle layer is made of wood material.6. The diaphragm of claim 5 , wherein the dome is adhered to the suspension portion by the adhesive layer.7. A sounder claim 5 , comprising: 'a vibration system supported by the frame, the vibration system comprising a diaphragm, and a voice coil fixed below the diaphragm, the diaphragm comprising:', 'a frame, and'}a suspension portion, anda dome comprising a polyethylene terephthalate (PET) layer, a middle layer and an adhesive layer, with the middle layer sandwiched between the PET layer and the ...

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Номер записи: 49

10-01-2019 дата публикации

SUSPENSION FOR MOVING-COIL LOUDSPEAKER AND LOUDSPEAKER

Номер: US20190014418A1

Автор: Bing Zhan Yu, Lin Yang Shao, Zai Xie hong

Принадлежит:

A moving-coil loudspeak includes a vibrating diaphragm, a suspension, a voice coil, a magnetic circuit, and a support. The suspension includes a surround and a first spider. One side of the surround is connected to an outer surface of the vibrating diaphragm. The first spider vertically stands below a connection between the surround and the vibrating diaphragm, and one side of the first spider is connected to an inner surface of the vibrating diaphragm. The voice coil is located below the center of the vibrating diaphragm. The magnetic circuit is located below the voice coil, where a coil on the voice coil is disposed at a central position of a magnetic gap. After the voice coil is powered on, a generated magnetic induction force drives the voice coil to vibrate and produce a sound by using the vibrating diaphragm. The support supports the magnetic circuit. 1. A suspension , used for supporting a vibrating diaphragm , comprising:a surround with an inverted U-shape in a section view, and the surround having one side connected to an outer surface of the vibrating diaphragm; anda first spider vertically standing below a connection between the surround and the vibrating diaphragm, the first spider having one side connected to an inner surface of the vibrating diaphragm.2. The suspension according to claim 1 , wherein the vibrating diaphragm has a long ellipse-shape claim 1 ,wherein the surround encircles a periphery of the vibrating diaphragm,wherein an other side of the surround is thickened to form a step shape, andwherein the first spider is located on one end of a major axis of the vibrating diaphragm.3. The suspension according to claim 2 , wherein the suspension comprises a second spider located on an other end of the major axis claim 2 , and the second spider vertically stands below a connection between the surround and the vibrating diaphragm.4. The suspension according to claim 3 , wherein the first spider and the second spider are waved arc plates.5. A moving- ...

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Номер записи: 50

09-01-2020 дата публикации

ACOUSTIC DIAPHRAGM INCLUDING GRAPHENE AND ACOUSTIC DEVICE EMPLOYING THE SAME

Номер: US20200015016A1

Автор: KIM Sangwon, Lee Dongwook, SEOL Minsu, SHIN Hyeonjin

Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided are an acoustic diaphragm and an acoustic device including the same. The acoustic diaphragm may include graphene nanoparticles, and an average particle size of the graphene nanoparticles may be about 10 nm or less. The graphene nanoparticles substantially may have a particle size of about 1 nm to about 10 nm. The graphene nanoparticles may include at least one functional group selected from a hydroxyl group, a carboxyl group, a carbonyl group, an epoxy group, an amine group, and an amide group. 1. An acoustic diaphragm for an acoustic device , the acoustic diaphragm comprising:a graphene-containing layer including graphene nanoparticles, wherein the graphene nanoparticles have an average particle size of 10 nm or less.2. The acoustic diaphragm of claim 1 , whereinthe graphene nanoparticles substantially have a particle size in the range of about 1 nm to about 10 nm.3. The acoustic diaphragm of claim 1 , whereinthe graphene nanoparticles include at least one functional group selected from a hydroxyl group, a carboxyl group, a carbonyl group, an epoxy group, an amine group, and an amide group.4. The acoustic diaphragm of claim 1 , whereinthe graphene nanoparticles have a carbon content in a range of about 50 at % to about 95 at %.5. The acoustic diaphragm of claim 1 , whereinthe graphene-containing layer further includes at least one different material other than graphene.6. The acoustic diaphragm of claim 5 , whereinthe at least one different material includes at least one selected from a polymer, a single molecule, a metal, and a metal complex.7. The acoustic diaphragm of claim 5 , whereinthe at least one different material includes one selected from an organic material, an inorganic material, and an organic-inorganic composite material.8. The acoustic diaphragm of claim 1 , whereinan amount of the graphene nanoparticles in the graphene-containing layer is in a range of about 1 wt % to about 99 wt %.9. The acoustic diaphragm of claim 8 , whereinthe amount ...

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Номер записи: 51

09-01-2020 дата публикации

METHOD FOR MANUFACTURING AN OPENING STRUCTURE AND OPENING STRUCTURE

Номер: US20200015017A1

Автор: Friza Wolfgang

Принадлежит:

A method for manufacturing an opening structure is provided. The method may include: forming a patterned mask over a first side of a carrier; forming material over the first side of the carrier covering at least a portion of the carrier; forming a first opening in the carrier from a second side of the carrier opposite the first side of the carrier to at least partially expose a surface of the patterned mask; and forming a second opening in the material from the second side of the carrier using the patterned mask as a mask. 1. A device , comprising:a carrier comprising a first side and a second side opposite the first side;a patterned mask formed over the first side of the carrier;a first opening extending through the carrier from the first side of the carrier to the second side of the carrier, wherein the first opening is at least partially covered at the first side of carrier by the patterned mask;a material formed over the first side of the carrier; anda second opening formed in the material that is in fluid communication with the first opening.2. The device of claim 1 ,wherein the second opening extends through the material.3. The device of claim 1 ,wherein the patterned mask comprises an oxide.4. The device of claim 3 ,wherein the patterned mask comprises silicon dioxide.5. The device of claim 1 ,wherein the patterned mask comprises carbon.6. The device of claim 1 ,wherein the patterned mask comprises at least one opening through the patterned mask.7. The device of claim 1 ,wherein the material directly contacts the carrier at the first side.8. The device of claim 7 , wherein the material covers and contacts one or more outer sidewalls of the patterned mask.9. The device of claim 1 , wherein a lateral width of the first opening is larger than a lateral width of the second opening claim 1 , the lateral widths being measured along a direction parallel to the first side of the carrier.10. The device of claim 1 , further comprising:a front side structure over a ...

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Номер записи: 52

09-01-2020 дата публикации

ACOUSTIC PANEL ASSEMBLY

Номер: US20200015019A1

Автор: SANCISI Carlo

Принадлежит:

An acoustic panel assembly includes: an acoustic panel; a magnetic circuit that generates a gap; and a voice coil disposed in the gap in order to move with the passage of electrical current. The voice coil is connected to the acoustic panel in order to move the acoustic panel in such a way to emit a sound. The magnetic circuit is disposed in correspondence of the voice coil in such a way to project in the front and in the back with respect to the acoustic panel. 1. Acoustic panel assembly comprising:an acoustic panel;a magnetic circuit that generates a gap; anda voice coil disposed in said gap in order to move with the passage of electrical current; said voice coil being connected to said acoustic panel in order to move the acoustic panel to emit a sound;wherein said magnetic circuit comprises a first magnet disposed in frontal position relative to the panel and a second magnet disposed in rear position relative to the panel; wherein the magnets are disposed in repulsive configuration;the first and second magnet have a circular shape and an axis and an external diameter;said voice coil is annular with an internal diameter and an external diameter and has an axis;wherein the axis of the voice coil coincides with the axis of the magnets and the external diameter of the coil is higher than the external diameter of the magnets.2. The acoustic panel assembly of claim 1 , wherein said magnetic circuit has a front part that protrudes frontally from the acoustic panel by a length claim 1 , and a back part that protrudes in the back from the acoustic panel by a length claim 1 , wherein the length of the front part is equal to the length of the back part of the magnetic circuit.3. The acoustic panel assembly of claim 1 , also comprising at least one bridge fixed to said magnetic circuit and to a frame fixed to a peripheral part of said acoustic panel by means of at least one elastic border.4. The acoustic panel assembly of claim 1 , wherein said voice coil is of flat planar ...

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Номер записи: 53

21-01-2016 дата публикации

CAPACITIVE SENSOR, ACOUSTIC SENSOR AND MICROPHONE

Номер: US20160021459A1

Автор: Inoue Tadashi, Kasai Takashi, Uchida Yuki

Принадлежит: Omron Corporation

A diaphragm is arranged on the upper surface of a silicon substrate so as to cover a chamber in the silicon substrate. Multiple anchors are provided on the upper surface of the silicon substrate, and the lower surfaces of corner portions of the diaphragm are supported by the anchors. Also, a fixed electrode plate is provided above the diaphragm with an air gap therebetween. In a view from a direction perpendicular to the upper surface of the silicon substrate, the entire length of the outer edge of the diaphragm located between adjacent anchors is located outward of a line segment that circumscribes the edges of the adjacent anchors on the side distant from the center of the diaphragm. Also, one or two or more through-holes are formed in the diaphragm in the vicinity of the anchors.

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Номер записи: 54

21-01-2016 дата публикации

Speaker

Номер: US20160021462A1

Автор: ISHIKAWA Yusuke, NAKAYAMA Masao, TOMIZAWA Satoshi

Принадлежит:

An edge has an inner circumferential portion connected to an outer circumferential portion of a diaphragm, and is made of an annular elastic deformation member. A frame is connected to an outer circumferential portion of the edge, and supports the diaphragm through the edge. A magnetic circuit displaces the diaphragm in a first direction that is a sound emission direction and in a second direction that is an opposite direction to the sound emission direction, and vibrates the diaphragm. In a region between the inner circumferential portion and outer circumferential portion of the edge, the edge includes a rib, which is protruded in the second direction, and limits a stroke of the diaphragm in the second direction.

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Номер записи: 55

21-01-2016 дата публикации

VIBRATING BODY FOR ACOUSTIC TRANSDUCER AND SPEAKER DEVICE

Номер: US20160021463A1

Автор: Ito Masanori, KIMURA Yoshihiro, Watanabe Kenya

Принадлежит:

A vibrating body for an acoustic transducer is provided, in which the high resonance frequency associated with inverse resonance can be outside the audible range and which can improve the acoustic characteristic of a speaker device. The vibrating body for an acoustic transducer includes: a diaphragm including a first vibrating part and a second vibrating part formed in proximity of the outer circumferential edge of the first vibrating part ; and an edge portion formed in proximity of the outer circumferential edge of the diaphragm . In the vibrating body for an acoustic transducer, first reinforcing portions and are formed so as to extend from the second vibrating part to the edge portion in a radial direction.

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Номер записи: 56

03-02-2022 дата публикации

SPEAKER DIAPHRAGM

Номер: US20220038809A1

Автор: Horiguchi Minoru, MATSUMURA Takashi, Yamaki Shintaro

Принадлежит: FOSTER ELECTRIC COMPANY, LIMITED

The present invention is configured such that, a ring member is bonded to a cone section formed on the outer circumference of a vibration plate body, and the inner circumferential section of an edge is bonded to the outer circumference section of the ring member or the cone section. Thus, the stiffness is increased without requiring a change in the shape of the vibration plate body, that is, the stiffness is improved without causing an increase in the weight of the vibration plate body, and a degradation in acoustic pressure at high frequencies is prevented. 1. A speaker diaphragm comprising:a body member including a center cap part and a cone part on an outer periphery of the center cap part;a ring member joined to the cone part of the body member; andan edge having an inner periphery joined to an outer periphery of the ring member or an outer periphery of the cone part.2. The speaker diaphragm of claim 1 , whereinthe center cap part has a dome shape, and the ring member having the same shape as the cone part is joined to a front surface or a back surface of the cone part.3. The speaker diaphragm of claim 1 , further comprising:a diaphragm fixing ring joined to an outer periphery of the edge.4. The speaker diaphragm of claim 1 , whereinthe body member and the ring member are made from a material obtained through addition of biocellulose and carbon fiber to pulp.5. The speaker diaphragm of claim 1 , whereinthe cone part having the ring member joined thereto has a rising shape that rises frontward.6. A headphone comprising the speaker diaphragm of . This application is the § 371 National Stage of International Application No. PCT/JP2019/035952, filed on Sep. 12, 2019, which claims the benefit of Japanese Patent Application Serial No. 2018-173208, filed on Sep. 18, 2018, the contents of which applications are hereby incorporated by reference in their entirety.The present disclosure relates to a speaker diaphragm suitable for use in headphones.A speaker for use in a ...

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Номер записи: 57

03-02-2022 дата публикации

Receiver Having Pressure Equilibrium Structure

Номер: US20220038810A1

Автор: Ji Yong Ju, Kim Young Woo

Принадлежит:

A receiver having a pressure equilibrium structure includes a magnetic circuit including a yoke, a permanent magnet coupled to the yoke, and a top plate attached to the permanent magnet, a voice coil configured to vibrate by mutual electromagnetic force with the magnetic circuit, a diaphragm allowing the voice coil to be attached thereto and vibrated by the voice coil to generate sound, and a protector coupled to an upper surface of the diaphragm and surrounding an outer side of the magnetic circuit with a gap from an outer periphery of the magnetic circuit, wherein the protector has a hole communicating with a gap portion with the magnetic circuit and an air path is formed by the hole of the protector and the gap between the magnetic circuit and the protector. 1. A receiver having a pressure equilibrium structure , the receiver comprising:a magnetic circuit including a yoke, a permanent magnet coupled to the yoke, and a top plate attached to the permanent magnet;a voice coil configured to vibrate by mutual electromagnetic force with the magnetic circuit;a diaphragm allowing the voice coil to be attached thereto and vibrated by the voice coil to generate sound; anda protector coupled to an upper surface of the diaphragm and surrounding an outer side of the magnetic circuit with a gap from an outer periphery of the magnetic circuit,wherein the protector has a hole communicating with a gap portion with the magnetic circuit and an air path is formed by the hole of the protector and the gap between the magnetic circuit and the protector.2. The receiver of claim 1 , further comprising:a mesh covering a pressure equilibrium hole of the protector.3. A receiver having a pressure equilibrium structure claim 1 , the receiver comprising:a cylindrical frame having a gap configured to accommodate a component;a yoke partitioning an internal space of the frame vertically and including a bottom surface, a cylindrical portion bent from the bottom surface, a flange portion formed on ...

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Номер записи: 58

03-02-2022 дата публикации

SPEAKER ASSEMBLY AND DISPLAY DEVICE COMPRISING IT

Номер: US20220038822A1

Автор: Je Yongjun, Lee Sangkeun, SONG Genmoo, YOUN Hyunseung

Принадлежит: LG ELECTRONICS INC.

A speaker assembly, and a display device including the same are provided. The speaker assembly according to an aspect of the present disclosure includes: a pair of magnets facing each other; a bobbin disposed between the pair of magnets and formed in a shape of a plate that extends long; a coil formed on at least one surface of the bobbin; a diaphragm fixed to one side of the bobbin, and extending in a direction intersecting a longitudinal direction of the bobbin; a frame disposed between the pair of magnets and the diaphragm; and a speaker edge disposed between the frame and the diaphragm, having one end fixed to the frame and the other end fixed to the diaphragm, and being convexly curved toward the bobbin. 1. A speaker assembly , comprising:a pair of magnets facing each other;a bobbin disposed between the pair of magnets and formed in a shape of a plate that extends long;a coil formed on at least one surface of the bobbin;a diaphragm fixed to one side of the bobbin, and extending in a direction intersecting a longitudinal direction of the bobbin;a frame disposed between the pair of magnets and the diaphragm; anda speaker edge disposed between the frame and the diaphragm, having one end fixed to the frame and the other end fixed to the diaphragm, and being convexly curved toward the bobbin.2. The speaker assembly of claim 1 , further comprising a damper disposed to face the frame with respect to the pair of magnets claim 1 , fixed to the other side of the bobbin which faces the one side of the bobbin claim 1 , and providing elasticity to the bobbin.3. The speaker assembly of claim 2 , wherein the damper comprises:a center plate extending long along the other side of the bobbin, and fixed to the other side of the bobbin;bridges disposed across the center plate and fixed to the center plate; anda plurality of circles fixed to both ends of the bridges and disposed to face each other with respect to the center plate.4. The speaker assembly of claim 3 , further ...

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Номер записи: 59

18-01-2018 дата публикации

PLANAR MAGNETIC HEADPHONES

Номер: US20180020276A1

Автор: Messingher Shai

Принадлежит:

Planar magnetic headphones include a single layer of parallel elongated magnets spaced from each other and supported on a magnet holder matrix. The holder matrix can be plastic or it can be a metallic permeability plate, with the magnets being on the inside (toward the ear) of the plate. Inboard of the magnets is a plastic dampening matrix that supports a first continuous disk-shaped dampening membrane. A serpentine circuit trace is established on a thin diaphragm that is outboard of the magnets to excite the magnets and move the diaphragm to produce sound according to the current in the trace. Still further outboard of the circuit race and positioned against a hard plastic outer cover is a second continuous disk-shaped dampening membrane. A circular pattern of holes is formed through the outer cover. 1. Planar magnetic headphone , comprising:an outer plastic shell formed with plural through-holes, the outer plastic shell facing away from a wearer of the headphone when the headphone is worn;a dampening matrix that supports a first continuous disk-shaped sound dampener that faces a wearer of the headphone when the headphone is worn;one and only one layer of elongated magnets co-parallel and co-planar to each other and disposed between the outer plastic shell and the first continuous disk-shaped sound dampener;a magnet holder matrix flush against the layer of elongated magnets, the magnet holder matrix comprising cross-elements establishing openings between adjacent cross-elements;a sound diaphragm with a serpentine circuit disposed between the magnets and the dampening matrix that supports the first continuous disk-shaped sound dampener such that electricity passing through the circuit cooperates with a magnetic field produced by the magnets to move the diaphragm to produce sound; andat least a second continuous disk-shaped sound dampener disposed between the magnet holder and the outer shell.2. The planar magnetic headphone of claim 1 , wherein the magnet holder ...

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Номер записи: 60

18-01-2018 дата публикации

ELECTROACOUSTIC TRANSDUCER

Номер: US20180020293A1

Автор: Doshida Yutaka, Hamada Hiroshi, ISHII Shigeo, Tomita Takashi

Принадлежит:

An electroacoustic transducer that can improve acoustic characteristics has a housing and a piezoelectric speaker. The piezoelectric speaker has a first vibration plate with a periphery part supported directly or indirectly on the housing, as well as a piezoelectric element placed at least on one side of the first vibration plate, and is constituted in such a way that its rigidity is asymmetric with respect to the center axis of the first vibration plate. 1. An electroacoustic transducer , comprising:a housing; and;a piezoelectric speaker which has a first vibration plate having a periphery part supported directly or indirectly on the housing, as well as a piezoelectric element placed at least on one side of the first vibration plate, and which is constituted in a manner that the piezoelectric speaker has structural rigidity formed by the first vibration plate and the piezoelectric element, which rigidity is rotationally asymmetric with respect to a center axis of the first vibration plate.2. An electroacoustic transducer according to claim 1 , wherein the piezoelectric element is placed at an eccentric position with respect to the first vibration plate.3. An electroacoustic transducer according to claim 1 , wherein the piezoelectric speaker further has a passage that penetrates through the first vibration plate in a thickness direction.4. An electroacoustic transducer according to claim 3 , wherein the passage includes at least one opening part provided in-plane in the first vibration plate.5. An electroacoustic transducer according to claim 3 , wherein the passage includes at least one cutout part provided in the periphery part.6. An electroacoustic transducer according to claim 3 , wherein:it further comprises a dynamic speaker that includes a second vibration plate; andthe housing has:a first space part where the dynamic speaker is placed; anda second space part which connects to the first space part via the passage, and which has a sound-guiding path that ...

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Номер записи: 61

18-01-2018 дата публикации

Loudspeaker

Номер: US20180020304A1

Автор: Linghu Ronglin, Shi Shengrong, Zhang Fuhu

Принадлежит: AAC Technologies Pte. Ltd.

A loudspeaker is disclosed. The loudspeaker includes a frame; a vibration system accommodated in the frame, a voice coil for driving the voice diaphragm and a support installed at one end of the voice coil away from the voice diaphragm. The vibration system includes a voice diaphragm, and the support is connected to the frame for providing elastic support to the voice coil. The loudspeaker further includes a magnetic circuit system for driving the vibration system. The magnetic circuit system includes a yoke, a first magnet portion, and a second magnet portion. The second magnetic portion includes an auxiliary magnet and an auxiliary pole plate overlapped with the auxiliary magnet. A light source installed on the auxiliary pole plate and opposite to the support, and a photosensitive sensor arranged on the support and being within the irradiation scope of the light source are further provided. 1. A loudspeaker comprising:a frame;a vibration system accommodated in the frame, the vibration system including a voice diaphragm, a voice coil for driving the voice diaphragm and a support installed at one end of the voice coil away from the voice diaphragm, the support being connected to the frame for providing elastic support to the voice coil;a magnetic circuit system accommodated in the frame for driving the vibration system, the magnetic circuit system including a yoke fixed to the frame, a first magnet portion positioned by the yoke, and a second magnet portion forming a magnetic gap with the first magnet portion; the second magnetic portion including an auxiliary magnet and an auxiliary pole plate overlapped with the auxiliary magnet;a light source installed on the auxiliary pole plate and opposite to the support; anda photosensitive sensor arranged on the support and being within the irradiation scope of the light source.2. The loudspeaker as described in claim 1 , wherein the voice coil comprises a pair of long axis sides and a pair of minor axis sides claim 1 , the ...

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Номер записи: 62

17-01-2019 дата публикации

PASSIVE RADIATORS AND RELATED DEVICES

Номер: US20190020945A1

Автор: Jeffery Nathan A.

Принадлежит: Bose Corporation

A passive radiator includes an elastomeric member and mass. The elastomeric member defines a suspension structure that has an inner peripheral boarder and an outer peripheral boarder and a first snap-attach feature that is arranged along the outer peripheral boarder of the suspension structure. The first snap-attach feature enables the elastomeric member to be coupled to a mating feature. The mass is supported along the inner peripheral boarder of the suspension structure and is configured for pistonic movement, relative to the first snap-attach feature, along a motion axis of the passive radiator. 1. A passive radiator comprising: a suspension structure having an inner peripheral boarder and an outer peripheral boarder;', 'a first snap-attach feature arranged along the outer peripheral boarder of the suspension structure for coupling the elastomeric member to a mating feature; and, 'an elastomeric member which definesa mass supported along the inner peripheral boarder of the suspension structure and configured for pistonic movement, relative to the first snap-attach feature, along a motion axis of the passive radiator.2. The passive radiator of claim 1 , wherein the first snap-attach feature comprises a recess for receiving a rib of the mating feature claim 1 , wherein the recess defines a groove for receiving a detent on the rib.3. The passive radiator of claim 2 , wherein the groove faces inward toward the motion axis of the passive radiator.4. The passive radiator of claim 1 , wherein the first snap-attach feature comprises a recess that extends continuously in a closed form about a periphery of the suspension structure for receiving a peripheral rib of the mating feature claim 1 , wherein the recess defines a groove for receiving a detent on the peripheral rib.5. The passive radiator of claim 4 , wherein the groove extends along an inner peripheral edge of the recess.6. The passive radiator of claim 1 , wherein the suspension structure is in the form of a half- ...

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Номер записи: 63

22-01-2015 дата публикации

VIBRATION SYSTEM AND SPEAKER USING THE SAME

Номер: US20150023544A1

Автор: Chu Zhuming

Принадлежит: AAC Technologies Pte. Ltd.

A vibration system is disclosed. The vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate. The diaphragm includes a fixing part for fixing the voice coil, and a heat sink is disposed on and fixed to the fixing part. A speaker using the vibration system is also disclosed. By disposing the heat sink on the diaphragm, heat can be dissipated from the voice coil effectively to ensure stability of the speaker. 1. A vibration system , comprising:a diaphragm having a fixing part;a voice coil connected with the diaphragm and driving the diaphragm to vibrate;a heat sink disposed on the diaphragm, and contacting a joint part of the diaphragm and the voice coil;the vibrating diaphragm being sandwiched between the voice coil and the heat sink.2. The vibration system of claim 1 , wherein the heat sink is a heat dissipating fin.3. The vibration system of claim 2 , wherein the heat sink comprises a substrate fixed to the fixing part claim 2 , and a plurality of protrusions extending from the substrate and disposed in an array.4. The vibration system of claim 3 , wherein the protrusions are disposed parallel to each other for forming a plurality of heat dissipating channels between adjacent protrusions.5. A speaker claim 3 , comprising:a frame;a magnetic yoke supported by the frame;a magnetic circuit unit positioned by the magnetic yoke;a vibration system driven by the magnetic circuit unit; whereinthe vibration system comprises:a diaphragm having a fixing part;a voice coil connected with the diaphragm and driving the diaphragm to vibrate;a heat sink disposed on the diaphragm, and contacting a joint part of the diaphragm and the voice coil;the vibrating diaphragm being sandwiched between the voice coil and the heat sink.6. The speaker of claim 5 , further comprising a front cover having an opening for accommodating the heat sink.7. The speaker of claim 5 , wherein the heat sink is a heat dissipating fin.8. The speaker of claim 7 , wherein the ...

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Номер записи: 64

16-01-2020 дата публикации

SPEAKER

Номер: US20200021917A1

Автор: Lee Sung Soo

Принадлежит:

The present invention relates to a speaker. A speaker according to the present invention includes: a pair of permanent magnets arranged on both empty side surfaces of a solenoid coil formed in a rectangular container shape, and first and second setting cases configured to set the locations of the solenoid coil and the permanent magnets or to minimize leakage flux. In a fabrication step according to the present invention, the locations of the solenoid coil and the permanent magnets can be accurately set, and thus an advantage arises in that manufacturing efficiency is improved. 1. A speaker comprising:a solenoid coil formed in a rectangular container shape having both open sides;two permanent magnets provided on both the open sides of the solenoid coil, and arranged such that opposite surfaces of the two permanent magnets have different poles;first and second setting cases configured to set locations of the solenoid coil and the two permanent magnets;a diaphragm provided above the solenoid coil;a drive rod configured such that a lower end thereof is coupled to an upper portion of the solenoid coil and an upper end thereof is fastened to the diaphragm;a circuit board configured to provide an electric signal to the solenoid coil; andan outer case configured to surround the individual components;wherein the upper portion of the solenoid coil is located between the two permanent magnets so that the upper portion of the solenoid coil is located in a magnetic field where a density of lines of magnetic force generated by the two permanent magnets is uniform and linear; andwherein the first setting case has a first location setting protrusion configured to set locations of the solenoid coil and the two permanent magnets, and the second setting case has a second location setting protrusion configured to set locations of the two permanent magnets.2. The speaker of claim 1 , wherein the second setting case further has a through hole configured to pass the drive rod therethrough ...

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Номер записи: 65

16-01-2020 дата публикации

Tweeter, Vibration Structure and Inverted Concave Diaphragm Thereof, and Manufacturing Method and Sound Effect Reproduction Method Therefor

Номер: US20200021918A1

Автор: HUANG Hsin Min

Принадлежит:

A tweeter includes a magnet unit, a voice coil, a casing panel; and a vibration unit. The vibration unit includes an inverted diaphragm and a resilient suspension member. The resilient suspension member includes a suspension member body and an inner side connecting edge and an outer side connecting edge integrally extended from the suspension member body respectively, wherein when the inner side connecting edge is integrally coupled to the outer surface of the inverted diaphragm, the outer side connecting edge thereof is integrally coupled to the outer surface of the casing panel. One end of the voice coil is coupled to the inverted concave diaphragm, while the opposing end thereof is coupled with the magnet unit. The tweeter is able to provide a high-pitch voice with a high frequency of 2560 Hz or above, or even 40 kHz or above, to enhance the high-pitch sound effect of the tweeter. 196-. (canceled)97: A tweeter , having no spider and a diameter ranging from 8 mm to 38 mm , comprising:a speaker casing comprising a casing panel having a ring shape; anda vibration unit, which comprises an inverted concave diaphragm and a resilient suspension member, wherein said resilient suspension member, having a ring shape, comprises a suspension member body, an inner side connecting edge inwardly and integrally extended from an inner side of said suspension member body and an outer side connecting edge outwardly and integrally extended from an outer side of said suspension member body, wherein said inner side connecting edge of said resilient suspension member is integrally and surroundingly coupled to at least a portion of said inverted concave diaphragm and said outer side connecting edge of said resilient suspension member is integrally coupled to at least a portion of said casing panel, wherein said inverted concave diaphragm has an arc height H ranging from 5 mm to 7 mm and an arc curvature R ranging from 10 mm to 20 mm;a magnet unit; anda voice coil, having one end portion ...

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Номер записи: 66

16-01-2020 дата публикации

MEMS MICROPHONE AND METHOD OF MANUFACTURING THE SAME

Номер: US20200021920A1

Автор: SUN Jong Won

Принадлежит:

A MEMS microphone includes a substrate defining a cavity, a diaphragm being spaced apart from the substrate, covering the cavity, and configured to generate a displacement of the diaphragm in response to an applied acoustic pressure, an anchor extending from an end portion of the diaphragm, and fixed to an upper surface of the substrate to support the diaphragm and a back plate disposed over the diaphragm, the back plate being spaced apart from the diaphragm such that an air gap is maintained between the back plate and the diaphragm, and defining a plurality of acoustic holes, wherein the anchor has a repetitive concave-convex shape in a direction toward a center of the diaphragm so that the anchor acts as a resistance to an acoustic wave. 1. A Micro-Electro-Mechanical Systems (MEMS) microphone comprising:a substrate defining a cavity;a diaphragm spaced apart from the substrate, covering the cavity, and configured to generate a displacement thereof in response to an applied acoustic pressure;an anchor extending from an end portion of the diaphragm and fixed to an upper surface of the substrate to support the diaphragm; anda back plate disposed over the diaphragm, the back plate being spaced apart from the diaphragm such that an air gap is maintained between the back plate and the diaphragm, the back plate defining a plurality of acoustic holes,wherein the anchor has a repetitive concave-convex vertically-sectional shape along a direction toward a center of the diaphragm so that the anchor acts as a resistance element to any acoustic wave that passes into the cavity in response to the applied acoustic pressure.2. The MEMS microphone of claim 1 , wherein the anchor includes a plurality of contacting portions in contact with the upper surface of the substrate claim 1 , the plurality of contacting portions spaced from each other and claim 1 , in aggregate claim 1 , presenting a ring shape having an inner diameter larger than the perimeter of the cavity.3. The MEMS ...

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Номер записи: 67

16-01-2020 дата публикации

METHOD OF FABRICATING A MINIATURE DEVICE HAVING AN ACOUSTIC DIAPHRAGM

Номер: US20200021933A1

Автор: Nath Prateek, Prevoir Shawn J.

Принадлежит:

A method of forming a device having a compliant member includes applying heat to a thermoplastic elastomer to maintain the thermoplastic elastomer in a softened state. The thermoplastic elastomer is extruded in the softened state as a film of thermoplastic elastomer. One or more of a bobbin and a housing, each having and end, is positioned such that the end extends at least partially into the film of thermoplastic elastomer. The positioning occurs when the thermoplastic elastomer is in the softened state and/or the bobbin and/or housing is at a temperature that is greater than a temperature of the film of thermoplastic elastomer. The film is cooled so that the bobbin and/or housing are secured to the film and so that the thermoplastic elastomer is in a state that exhibits rubber-like properties. 1. A microspeaker device comprising:an acoustic diaphragm formed of a film of thermoplastic elastomer;a housing having an end extending at least partially into the film of thermoplastic elastomer, wherein the film adheres to a portion of the housing at the end of the housing to form a first meniscus along a portion of a wall of the housing;a bobbin having a bobbin surface and being disposed inside the housing, the bobbin having an end extending at least partially into the film of thermoplastic elastomer, wherein the film adheres to a portion of the bobbin at the end of the bobbin to form a second meniscus along a wall of the bobbin; anda coil wound on the bobbin surface.2. The microspeaker device of wherein the first meniscus comprises a first inner meniscus having a height along an inner wall surface of the housing and a first outer meniscus having a height along an outer wall surface of the housing and wherein the second meniscus comprises a second inner meniscus having a height along an inner wall surface of the bobbin and a second outer meniscus having a height along an outer wall surface of the bobbin.3. The microspeaker device of wherein an axis of the housing and an ...

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Номер записи: 68

21-01-2021 дата публикации

AUDIO DEVICE AND AUDIO REPRODUCTION APPARATUS

Номер: US20210021919A1

Автор: Nakagawa Toshiyuki, Ohashi Yoshio

Принадлежит: SONY CORPORATION

An audio device includes a thin film material having a capacitive property, the thin film material including an acoustic sheet having a curved shape, in which the acoustic sheet includes a first region that is actively driven by an input signal and a second region that is not actively driven by the input signal and the first region is formed in at least a part of an outside of the second region. 1. An audio device , comprisinga thin film material having a capacitive property, the thin film material including an acoustic sheet having a curved shape, whereinthe acoustic sheet includes a first region that is actively driven by an input signal and a second region that is not actively driven by the input signal andthe first region is formed in at least a part of an outside of the second region.2. The audio device according to claim 1 , whereinthe second region is a hole formed in the acoustic sheet.3. The audio device according to claim 1 , whereinthe second region is formed of a material that is not actively driven.4. The audio device according to claim 3 , whereina material that forms the second region is a flexible material.5. The audio device according to claim 3 , whereina material that forms the second region is a light-transmissive material.6. The audio device according to claim 1 , whereinthe second region is provided substantially at a center of the first region.7. The audio device according to claim 1 , whereinthe second region is provided at a periphery of the first region.8. The audio device according to claim 1 , whereinthe second region comprises a plurality of second regions provided within the first region.9. The audio device according to claim 1 , whereinthe acoustic sheet has a shape curved in a convex form or a concave form in a sound radiation direction.10. The audio device according to claim 1 , whereinthe acoustic sheet has a shape curved in a tubular form.11. The audio device according to claim 1 , whereinat least the first region is colored.12. ...

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Номер записи: 69

21-01-2021 дата публикации

KERNEL-TYPE EARPHONE HAVING PRESSURE BALANCE STRUCTURE

Номер: US20210021920A1

Автор: CHOI Nakgyu, KIM Sangkyum, KO Eunsu

Принадлежит:

The present disclosure relates to a kernel-type earphone which is capable of easily implementing a pressure balance structure while hardly affecting acoustic characteristics of a speaker unit by using an existing general diaphragm and an existing general gasket. 1. A kernel-type earphone having a pressure balance structure , which includes a housing having a front portion , a rear portion , and a stepped portion formed between the front portion and the rear portion by a difference in diameter between the front portion and the rear portion , and a speaker unit mounted on the stepped portion of the housing , wherein an internal space of the housing is divided into a front chamber and a rear chamber with respect to the speaker unit mounted on the stepped portion ,the speaker unit comprising:a case, which is a cylindrical tube having a closed one surface as a bottom surface, having an acoustic hole formed in the bottom surface to discharge a sound generated by a diaphragm to an outside therethrough, wherein a sidewall of the case is flat so that speaker components are capable of being accommodated in an internal space of the case;a spacer ring disposed on the bottom surface of the case to support an edge of the diaphragm and form a vibration space in which the diaphragm vibrates, and having an air groove formed to define an air passage in a portion in contact with the bottom surface of the case in a radial manner;the diaphragm;a diaphragm ring configured to support the edge of the diaphragm;a voice coil having one surface attached to the diaphragm and the other surface arranged on a gap and configured to vibrate the diaphragm;a ring-shaped magnet;a plate attached to the ring-shaped magnet;a yoke having a configuration in which a core protrudes from a center of a base plate, wherein the ring-shaped magnet and the plate are engaged with the core so that a gap is formed between the core and the plate to accommodate the voice coil therein; anda printed circuit board (PCB) ...

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Номер записи: 70

21-01-2021 дата публикации

PIEZOELECTRIC MEMS DIAPHRAGM MICROPHONE

Номер: US20210021936A1

Автор: Hui Yu, Shin Kwang Jae

Принадлежит:

A piezoelectric microelectromechanical systems diaphragm microphone can be mounted on a printed circuit board. The microphone can include a substrate with an opening between a bottom end of the substrate and a top end of the substrate. The microphone can have two or more piezoelectric film layers disposed over the top end of the substrate and defining a diaphragm structure. Each of the two or more piezoelectric film layers can have a predefined residual stress that substantially cancel each other out so that the diaphragm structure is substantially flat with substantially zero residual stress. The microphone can include one or more electrodes disposed over the diaphragm structure. The diaphragm structure is configured to deflect when the diaphragm is subjected to sound pressure via the opening in the substrate. 1. A piezoelectric microelectromechanical systems diaphragm microphone , comprising:a substrate defining an opening between a bottom end of the substrate and a top end of the substrate;two or more piezoelectric film layers disposed over the top end of the substrate and defining a diaphragm structure, each of the two or more piezoelectric film layers having a predefined residual stress that substantially cancel each other out so that the diaphragm structure is substantially flat with substantially zero residual stress; andone or more electrodes disposed over the diaphragm structure,wherein the diaphragm structure is configured to deflect when the diaphragm structure is subjected to sound pressure via the opening in the substrate.2. The microphone of wherein the diaphragm structure has a circular shape.3. The microphone of wherein the one or more electrodes disposed over the diaphragm structure include a circumferential electrode disposed over a circumference of the diaphragm structure and a center electrode disposed generally over a center of the diaphragm structure claim 2 , at least a portion of the center electrode spaced apart from the circumferential ...

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Номер записи: 71

26-01-2017 дата публикации

SPEAKER APPARATUS AND ELECTRONIC APPARATUS INCLUDING SAME

Номер: US20170026726A1

Автор: KIM Jong-bae, KIM Sung-Joo, SON Sung-ha

Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A speaker apparatus includes a speaker unit including a magnet configured to provide a magnetic field; and a membrane disposed in the magnet field, configured to be vibratable in a first direction, and configured to emit a sound in a second direction perpendicular to the first direction; and a blocking unit disposed at the membrane, configured to block a first region of the membrane having a first height along the first direction from being exposed and configured to expose a second region of the membrane having a second height, a sum of the first and the second heights corresponds to a total height of the membrane, wherein the first height of the membrane blocked by the blocking unit is less than a half of a wavelength corresponding to a maximum frequency in a frequency domain of the sound emitted from the membrane. 1. A speaker apparatus comprising: a magnet configured to provide a magnetic field; and', 'a membrane disposed in the magnet field, configured to be vibratable in a first direction, and configured to emit a sound in a second direction perpendicular to the first direction; and, 'a speaker unit comprisinga blocking unit disposed at the membrane, configured to block a first region of the membrane having a first height along the first direction from being exposed and configured to expose a second region of the membrane having a second height, a sum of the first and the second heights corresponds to a total height of the membrane,wherein the first direction is a vertical direction perpendicular to a floor,a width of the membrane extending in a third direction, which is perpendicular to the first and the second directions, is greater than the total height of the membrane in the first direction, andthe first height of the membrane blocked by the blocking unit is less than a half of a wavelength corresponding to a maximum frequency in a frequency domain of the sound emitted from the membrane.2. The speaker apparatus of claim 1 , wherein the membrane has a ...

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Номер записи: 72

26-01-2017 дата публикации

Devices and Methods for a High Performance Electromagnetic Speaker Based on Monolayers

Номер: US20170026753A1

Автор: Dong Jianchun

Принадлежит:

A device is provided that comprises a membrane that includes one or more layers of an electrically 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 layers of an electrically conductive material. The device also comprises a support structure coupled to a periphery of the membrane. The device also comprises a magnet arranged to provide a magnetic field that is substantially parallel to the surface of the membrane. The device also comprises a signal conditioner configured to provide an electrical signal to the coil to generate an electrical current flowing through the coil. The electrical current interacts with the magnetic field to cause a vibration of the membrane. Characteristics of the vibration are based on at least the electrical signal provided by the signal conditioner. 1. A device comprising:a membrane that includes one or more layers of an electrically resistive material;a film disposed along a surface of the membrane to form a coil, wherein the film includes one or more layers of an electrically conductive material;a support structure coupled to a periphery of the membrane;a magnet arranged to provide a magnetic field that is substantially parallel to the surface of the membrane; anda signal conditioner to provide an electrical signal to the coil to generate an electrical current flowing through the coil, wherein the electrical current interacts with the magnetic field to cause a vibration of the membrane, and wherein characteristics of the vibration are based on at least the electrical signal provided by the signal conditioner.2. The device of claim 1 , wherein the generated electrical current is an alternating current based on the electrical signal provided by the signal conditioner claim 1 , and wherein the characteristics of the vibration are based on Lorentz forces related to the interaction between the magnetic field and the alternating current.3. The device of ...

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Номер записи: 73

26-01-2017 дата публикации

MEMS COMPONENT INCLUDING A SOUND-PRESSURE-SENSITIVE DIAPHRAGM ELEMENT AND PIEZOSENSITIVE SIGNAL DETECTION

Номер: US20170026754A1

Автор: Buck Thomas, EHRENPFORDT Ricardo, Purkl Fabian, Scheben Rolf, SCHELLING Christoph, STEIN Benedikt, Stumber Michael

Принадлежит:

For a MEMS component, in the layer structure of which at least one sound-pressure-sensitive diaphragm element is formed, which spans an opening or cavity in the layer structure and the deflections of which are detected with the aid of at least one piezosensitive circuit element in the attachment area of the diaphragm element, design measures are provided, by which the stress distribution over the diaphragm surface may be influenced intentionally in the event of deflection of the diaphragm element. In particular, measures are provided, by which the mechanical stresses are intentionally introduced into predefined areas of the diaphragm element, to thus amplify the measuring signal. For this purpose, the diaphragm element includes at least one designated bending area, which is defined by the structuring of the diaphragm element and is more strongly deformed in the event of sound action than the adjoining diaphragm sections. 1. A MEMS component , comprising:a layer structure in which at least one sound-pressure-sensitive diaphragm element is formed, the diaphragm element spanning an opening or cavity in the layer structure, the diaphragm element being structured;at least one piezosensitive circuit element situated in an area of an attachment of the diaphragm element to the layer structure, deflections of the diaphragm element being detected with the aid of the piezosensitive circuit element;wherein the diaphragm element includes at least one designated bending area, which is defined by the structuring of the diaphragm element and in the event of sound action, is deformed more strongly than adjoining sections of the diaphragm.2. The MEMS component as recited in claim 1 , wherein the diaphragm element includes at least one stiffened diaphragm section claim 1 , which adjoins the designated bending area claim 1 , and the stiffened diaphragm section has at least one of: i) a greater thickness than the designated bending area claim 1 , and ii) corrugations formed therein.3. ...

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Номер записи: 74

28-01-2016 дата публикации

SPEAKER APPARATUS

Номер: US20160029127A1

Автор: Tada Arata, Tanabe Kei, Yamagami Masaru

Принадлежит:

A support chassis mounted on a sounding side of a speaker apparatus is formed of an iron material. The support chassis is formed in a shape in which a central supporting part nears a main-body chassis. A magnetic field generating unit is fixed to the central supporting part on a side of a recess of the support chassis. The support chassis includes a frame part, the central supporting part, and spoke parts. In the spoke part, a width dimension D of an inner end part is formed narrower than a width dimension D of an outer end part. Therefore, a resistance in a case where a magnetic flux passes through the spoke part increases, and the leaked magnetic field is hardly induced from the magnetic field generating unit to the spoke part. Therefore, a reduction in a speaker output can be prevented. 1. A speaker apparatus comprising:a main-body chassis;a support chassis defining an outer edge that is fixed to the main-body chassis;a diaphragm positioned between the main-body chassis and the support chassis, the diaphragm defining an outer edge that is fixed to at least one of the main-body chassis and the support chassis;a voice coil fixed to a center of the diaphragm; anda magnetic field generating unit configured to apply a driving magnetic field to the voice coil, the support chassis has a projecting shape toward the main-body chassis,', 'the magnetic field generating unit is fixed to a center of a recess side of the support chassis,', 'the support chassis includes a frame part formed of a magnetic metal material and fixed to the main-body chassis, a central supporting part to which the magnetic field generating unit is fixed, and a plurality of spoke parts for connecting between the frame part and the central supporting part, and', {'b': 1', '2, 'each of the spoke parts is formed so that a width dimension D of an inner end part positioned in a boundary with the central supporting part is smaller than a width dimension D of an outer end part positioned in a boundary with ...

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Номер записи: 75

28-01-2016 дата публикации

Sound Producing System

Номер: US20160029128A1

Автор: Mark Pircaro

Принадлежит: Bose Corp

Breakup of an electro-acoustic transducer is disrupted by introducing discontinuities that do not conform to a configuration having n-fold radial symmetry. This may be accomplished by using irregular azimuthal spacing and/or by having a junction point of the discontinuities offset relative to the geometric center of the moving surface. The discontinuities may be implemented on one or more of the moving sound producing components, such as on a diaphragm and/or dust cap of the electro-acoustic transducer. A bridging member may be introduced to span the discontinuities to stiffen the sound producing components.

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Номер записи: 76

25-01-2018 дата публикации

ELASTIC COMPOSITE STRUCTURE FOR SPEAKER VIBRATING MEMBER

Номер: US20180027331A1

Автор: OHARA Hiroshi

Принадлежит:

The present invention provides an elastic composite structure for a speaker vibrating member, including: a vibrating member body, a resin base material and a gum material. The vibrating member body is provided with fibers that are interwoven with each other. The fibers arranged along a first linear direction are defined as warp threads, and the fibers arranged along a second linear direction are defined as weft threads. The resin base material is coated over an outer side of the fibers, so the fibers are able to keep a predetermined stiffness. The gum material is combined with the resin base material, and is coated over the outer side of the fibers to maintain a predetermined resilience and ductility of the fibers. With such a structure, the resonance noise generated during the vibration of resin base material and speaker vibrating member may be reduced. 1. An elastic composite structure for a speaker vibrating member , comprising:a vibrating member body having a plurality of fibers that are interwoven with each other, wherein the fibers arranged along a first linear direction are defined as warp threads, the fibers arranged along a second linear direction are defined as weft threads, and the first linear direction is perpendicular to the second linear direction;a resin base material coated over an outer side of the fibers, wherein the resin base material enables the fibers to maintain a predetermined stiffness; anda gum material combined with the resin base material, wherein the gum material is coated over the outer side of the fibers for maintaining a predetermined resilience and ductility of the fibers.2. The elastic composite structure according to claim 1 , wherein the resin base material is coated over the outer side of the fibers to form a first cladding layer claim 1 , the gum material is coated over the first cladding layer and is combined with the resin base material to form a second cladding layer.3. The elastic composite structure according to claim 1 , ...

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Номер записи: 77

25-01-2018 дата публикации

Miniature speaker

Номер: US20180027332A1

Автор: Hongxing Wang, Lubin Mao, Rongguan Zhou, Wei Song

Принадлежит: AAC Technologies Pte Ltd

A miniature speaker includes a frame having a base plate, a cover plate covering the frame and forming an accommodating space; a vibrating system fixed on the frame; and a magnetic circuit system for driving the vibrating system to vibrate. The magnetic circuit system includes a main magnet, a first pole plate attached to the main magnet, and two first side magnet components. Each of the first side magnet components includes a first side magnet, a second pole plate and a second side magnet stacked sequentially from the base plate along a direction toward the cover plate. A magnetizing direction of the first side magnet is opposite to that of the main magnet, and a magnetizing direction of the second side magnet is opposite to that of the first side magnet.

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Номер записи: 78

25-01-2018 дата публикации

Miniature speaker

Номер: US20180027333A1

Автор: Chengxia Ji, Fei Hou, Lubin Mao

Принадлежит: AAC Technologies Pte Ltd

A miniature speaker includes a frame; a vibration system including a diaphragm and a voice coil driving the diaphragm. The diaphragm includes a first fixation part located on a middle position of the diaphragm, a second fixation part located on an edge of the diaphragm and connected fixedly on the frame, and a vibration part connected between the first fixation part and the second fixation part. A magnetic circuit system includes a lower plate and a magnet part on the lower plate. A cover plate includes a bottom wall, and a side wall connected with the second fixation part. A gasket is located between and abuts against the bottom wall and the first fixation part. The gasket, the first fixation part and the magnet part are sandwiched firmly between the bottom wall and the lower plate.

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Номер записи: 79

25-01-2018 дата публикации

Miniature speaker

Номер: US20180027334A1

Автор: Mao Lubin

Принадлежит: AAC Technologies Pte. Ltd.

A miniature speaker includes a frame and a vibrating system accommodated in the frame. The vibrating system includes a diaphragm fixed on the frame and a voice coil for driving the voice diaphragm to vibrate. The speaker further includes a magnetic circuit system. The diaphragm includes a first suspension positioned at a middle portion thereof, a second suspension positioned at an edge thereof, and a dome connecting the first suspension with the second suspension; and the magnetic circuit system is connected with the first suspension and is suspended in the frame by the first suspension. 1. A miniature speaker , including:a frame;a vibrating system accommodated in the frame, the vibrating system including a diaphragm fixed on the frame and a voice coil for driving the voice diaphragm to vibrate;a magnetic circuit system; whereinthe diaphragm includes a first suspension positioned at a middle portion thereof, a second suspension positioned at an edge thereof, and a dome connecting the first suspension with the second suspension; andthe magnetic circuit system is connected with the first suspension and is suspended in the frame by the first suspension.2. The miniature speaker as described in further comprising a spring fixed in the frame and supporting the magnetic circuit system elastically.3. The miniature speaker as described in claim 2 , wherein the spring comprises a main body supporting the magnetic circuit system claim 2 , and an extended part extending from an outer edge of the main body and connected with the frame.4. The miniature speaker as described in claim 3 , wherein the frame comprises a frame main body claim 3 , and a projecting part extending from the frame main body away from the vibrating system; the extended part is connected with the projecting part.5. The miniature speaker as described in claim 1 , wherein the magnetic circuit system comprises a yoke and a magnetic part arranged on the yoke; the magnetic part comprises a first magnetic part ...

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Номер записи: 80

25-01-2018 дата публикации

Miniature Sounding Device

Номер: US20180027335A1

Автор: Li Shuai, Zhang Fan

Принадлежит: AAC Technologies Pte. Ltd.

The present disclosure provides a miniature sounding device, the miniature sounding device includes a fixing system; and a vibrating system including a diaphragm, a voice coil which is arranged underneath the diaphragm and is configured to drive the diaphragm to vibrate and sound, and a flexible circuit board arranged at an external side of the voice coil, the voice coil including a first end surface which is connected with the diaphragm and a second end surface which is opposite to the first end surface, the flexible circuit board is level with the first end surface. In the miniature sounding device provided by the present disclosure, the arrangement that the flexible circuit board is level with the voice coil can save height space. 1. A miniature sounding device , comprising:a fixing system; anda vibrating system comprising a diaphragm, a voice coil which is arranged underneath the diaphragm and is configured to drive the diaphragm to vibrate and sound, and a flexible circuit board arranged at an external side of the voice coil, the voice coil comprising a first end surface which is connected with the diaphragm and a second end surface which is opposite to the first end surface;wherein, the flexible circuit board is level with the first end surface of the voice coil.2. The miniature sounding device as described in claim 1 , wherein claim 1 , the diaphragm comprises a voice diaphragm claim 1 , and a dome arranged at a side of the voice diaphragm adjacent to the fixing system.3. The miniature sounding device as described in claim 2 , wherein claim 2 , the flexible circuit board comprises a first fixing portion which is fixedly connected with the voice diaphragm claim 2 , a second fixing portion which is fixedly connected with the dome claim 2 , and a flexible connecting arm which connects the first fixing portion with the second fixing portion.4. The miniature sounding device as described in claim 3 , wherein claim 3 , the second fixing portion of the flexible ...

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Номер записи: 81

25-01-2018 дата публикации

Miniature Sounding Device

Номер: US20180027336A1

Автор: Li Shuai, Yan Zhijun, Zhang Fan

Принадлежит: AAC Technologies Pte. Ltd.

The present disclosure provides a miniature sounding device, including a fixing system; and a vibrating system including a diaphragm, a voice coil underneath the diaphragm and configured to drive the diaphragm to vibrate and sound and a flexible circuit board outside the voice coil, the voice coil includes a first end surface which is connected with the diaphragm and a second end surface opposite to the first end surface, the flexible circuit board is level with the first end surface and includes a first surface adjacent to the diaphragm and a second surface opposite to the first surface, the voice coil includes a voice coil lead wire which extends out from the first end surface and is fixedly connected with the second surface, a gap configured to provide space for the voice coil is provided at a side of the flexible circuit board adjacent to the voice coil. 1. A miniature sounding device , comprising:a fixing system; anda vibrating system comprising a diaphragm, a voice coil which is arranged underneath the diaphragm and is configured to drive the diaphragm to vibrate and sound, and a flexible circuit board arranged at an external side of the voice coil, the voice coil comprising a first end surface which is connected with the diaphragm and a second end surface which is opposite to the first end surface and a voice coil lead wire which extends out from the first end surface of the voice coil, the flexible circuit board is level with the first end surface of the voice coil and comprising a first surface which is adjacent to the diaphragm and a second surface which is opposite to the first surface;wherein, the voice coil lead wire is fixedly connected with the second surface of the flexible circuit board, and a gap configured to provide space for the voice coil lead wire is provided at a side of the flexible circuit board adjacent to the voice coil.2. The miniature sounding device as described in claim 1 , wherein claim 1 , the diaphragm comprises a voice diaphragm ...

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Номер записи: 82

10-02-2022 дата публикации

SPEAKER

Номер: US20220046359A1

Автор: Li Zhi, XIAO Peng

Принадлежит:

A speaker includes a basket; a diaphragm, supported on the basket through a surround; and a voice coil, including a cup-shaped support connected to the basket through a damper. An upper periphery of the cup-shaped support includes protrusion portions in contact with a lower surface of the diaphragm and grooves spaced apart from the diaphragm. The grooves extend in radial directions of the cup-shaped support to form air passages. 1. A speaker , comprising:a basket;a surround;a diaphragm, supported on the basket through the surround; anda voice coil, including a cup-shaped support connected to the basket through a damper, an upper periphery of the cup-shaped support including a plurality of protrusion portions in contact with a lower surface of the diaphragm and a plurality of grooves spaced apart from the diaphragm, wherein the plurality of grooves extends in radial directions of the cup-shaped support to form air passages.2. The speaker as claimed in claim 1 , wherein an end portion of each of the plurality of grooves in the radial directions includes a chamfered structure.3. The speaker as claimed in claim 1 , wherein the diaphragm includes a wall extending downwards from the lower surface claim 1 , the wall including a plurality of connecting portions in contact with the plurality of protrusion portions of the cup-shaped support.4. The speaker as claimed in claim 3 , wherein the wall further includes a plurality of extension portions extending in the radial directions from two ends of each of the plurality of connecting portions claim 3 , and the plurality of extension portions being configured to guide airflows flowing through the air passages.5. The speaker as claimed in claim 1 , wherein the plurality of protrusion portions and the plurality of grooves are in an alternate arrangement.6. The speaker as claimed in claim 5 , wherein a distance between two adjacent grooves of the plurality of grooves is fixed.7. The speaker as claimed in claim 1 , wherein a hole is ...

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Номер записи: 83

24-01-2019 дата публикации

MEMS MICROPHONE

Номер: US20190028814A1

Автор: Cai Mengjin, ZHAN Junkai, ZHOU Zonglin

Принадлежит:

An MEMS microphone is disclosed, which comprises a substrate and a vibrating diaphragm and a back electrode which are located above the substrate, a plurality of comb tooth parts are formed in edge positions of the vibrating diaphragm, and the plurality of comb tooth parts are distributed in a peripheral direction of the vibrating diaphragm at intervals, wherein a position between every two adjacent comb tooth parts on the vibrating diaphragm is connected to the substrate via an insulating layer; and the comb tooth parts on the vibrating diaphragm are at least partially overlapped with the substrate, and a clearance exists between the comb tooth parts and the substrate and is configured as an airflow circulation channel. The microphone of the present invention has better impact resistance and can avoid intrusion of dust. 110-. (canceled)11. A MEMS microphone comprising:a substrate;a vibrating diaphragm located above the substrate;a back electrode located above the substrate; anda plurality of comb tooth parts formed in edge positions of the vibrating diaphragm, the plurality of comb tooth parts are distributed in a peripheral direction of the vibrating diaphragm at intervals,', 'a position between every two adjacent comb tooth parts on the vibrating diaphragm is connected to the substrate via an insulating layer, and', 'the comb tooth parts on the vibrating diaphragm are at least partially overlapped with the substrate such that a clearance exists between the comb tooth parts and the substrate and the clearance is configured as a channel., 'wherein12. The MEMS microphone according to claim 11 , wherein: a vibrating diaphragm main body; and', 'a plurality of connecting parts,, 'the vibrating diaphragm comprisesthe plurality of connecting parts are distributed on the edge of the vibrating diaphragm main body at intervals and protrude relative to the edge of the vibrating diaphragm main body,the comb tooth parts are disposed in the positions on the vibrating diaphragm ...

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Номер записи: 84

28-01-2021 дата публикации

Speaker box and mobile terminal

Номер: US20210029460A1

Автор: Chen Zhichen, Huang Xingzhi, Liu Lin, Tong Dijiang, Wu Jun, Yin Zhaoyu, Zhang Zhe

Принадлежит:

The invention provides a speaker box having an upper cover, a lower cover and a speaker unit. The speaker unit includes a diaphragm engaging with the upper cover for forming a back cavity and a front acoustic cavity. The speaker box also includes a heat conductor conducting the heat generated by a heating part member into the speaker box. The heat conductor is used to conduct the heat generated by the heating part member to the sound channel and the front acoustic cavity. The present application further provides a mobile terminal. The speaker box provided by present application conducts the heat generated by the heating part member of the mobile terminal to outside. 1. A speaker box , comprising:an upper cover;a lower cover forming a containment space with the upper cover;a speaker unit accommodated in the containment space, comprising a diaphragm for dividing the containment space into a front acoustic cavity and a back cavity opposite to the front acoustic cavity;whereinthe upper cover comprises a top wall opposite to the diaphragm, a side wall bending and extending from an edge of the top wall toward the lower cover, a support wall extending from the top wall to support the speaker unit, and one pair of the blocking plates inclining and extending from the side wall to the support wall;the speaker box further comprises a heat conductor conducting heat generated by a heating part member into the speaker box;the heat conductor extends from the back cavity to the blocking plate and is lapped on the blocking plate; the top wall and the heat conductor together form a sound channel connecting the front acoustic cavity; andthe heat conductor is used to conduct the heat generated by the heating part member to the sound channel and the front acoustic cavity.2. The speaker box as described in claim 1 , wherein claim 1 , the back cavity is encircled by the heat conductor claim 1 , the upper cover claim 1 , the diaphragm and the lower cover.3. The speaker box as described in ...

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Номер записи: 85

05-02-2015 дата публикации

Electrical signal to audio signal transducer with a deformable diaphragm unit

Номер: US20150036865A1

Автор: Lai-Shi Huang

Принадлежит: Individual

An electrical signal to audio signal transducer with a deformable diaphragm unit includes a connective portion and a deformable diaphragm unit. The connective portion connects the deformable diaphragm unit with a wall of a box. The deformable diaphragm unit is linked up with a through opening of the connective portion to form a passage. Push and pull exerted on the deformable diaphragm unit by the magnetic force induced by the current flows through the voice coil can cause deformable diaphragm unit to deform and move in a reciprocating manner and thus generate audible sounds. Therefore, with the transducer of the present invention, poor performance due to the dimensional constrain may be overcome.

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Номер записи: 86

05-02-2015 дата публикации

ACOUSTIC TRANSDUCER COMPRISING A PLURALITY OF COAXIALLY ARRANGED DIAPHRAGMS

Номер: US20150036867A1

Автор: AXELSSON Jens-Peter, JABBARI Alireza, JR. Edward T., KANELLAKOPOULOS Ioannis, KANTOR Kenneth L., NORCOTT, Prince David J., TRUE Robert J., UNRUH Andrew David, WEI Shaolin

Принадлежит:

An acoustic transducer comprises one or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers. The diaphragms may be driven directly, inertially or fluidically. If diaphragms are driven by rods that pass through holes in the diaphragms, noise may be generated by air that leaks through the pass-through holes. This noise may be reduced or eliminated by measures that reduce or eliminate the air leakage. 1. An acoustic transducer comprising:a housing;a plurality of diaphragms separated into one or more groups in which the diaphragms in at least one group of diaphragms are connected to each other by rods in which at least some of the rods pass through openings in the diaphragms, wherein the diaphragms with openings are shaped and sized at an area around the respective opening to resist or diffuse air passing through the respective opening; andone or more motors that operate in response to an electrical signal;wherein the diaphragms of each group are driven by a respective motor to which all the diaphragms in the group are coupled.2. The acoustic transducer of claim 1 , wherein the acoustic transducer is formed from: a plurality of diaphragm modules coupled to one another claim 1 , each diaphragm module comprising a section of the housing and one or more of the diaphragms coupled to the section of the housing; and one or more motor modules coupled to one or more of the diaphragm modules claim 1 , each of the motor modules comprising one or more of the motors.3. The acoustic transducer of claim 2 , wherein a respective diaphragm module comprises one or more rods that are coupled to its one or more diaphragms.4. The acoustic transducer of claim 3 , wherein the one or more rods in a first diaphragm module connect to the diaphragm in a second diaphragm module and pass through openings ...

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Номер записи: 87

05-02-2015 дата публикации

Acoustic transducer comprising a plurality of coaxially arranged diaphragms

Номер: US20150036868A1

Автор: Alireza Jabbari, Andrew David Unruh, David J. Prince, Edward T. Norcott, Jr., Ioannis Kanellakopoulos, Jens-Peter Axelsson, Kenneth L. Kantor, Robert J. True, Shaolin Wei

Принадлежит: Tymphany Hong Kong Ltd

An acoustic transducer includes a housing, a plurality of diaphragms suspended from the housing and separated into one or more groups, and one or more motors combined with the housing that operate in response to an electrical signal. The diaphragms of each group are driven by a respective motor to which all the diaphragms in the group are coupled and at least one motor has an indirect coupling with no direct mechanical connection to the diaphragms driven thereby. One or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers.

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Номер записи: 88

01-05-2014 дата публикации

Vibration module for sound transducer

Номер: US20140119578A1

Автор: In Ho Jeong, Joong Hak Kwon, Kil Dong Park, Kyu Dong Choi

Принадлежит: EM Tech Co Ltd

The present invention relates to a vibration module for a sound transducer and, more particularly, to a vibration module for a sound transducer which can prevent sound leakage by minimizing contacts between a diaphragm and a voice coil. The vibration module for the sound transducer according to the present invention comprises: a substrate having an inner portion and an outer portion, an electrical connection portion for applying electrical signals to a voice coil being provided on the inner portion and a terminal being provided on the outer portion, for performing electrical connection between the electrical connection portion and the terminal; a first diaphragm attached between the inner portion and outer portion of the substrate; and the voice coil mounted on the inside of the inner portion of the substrate with a certain distance from the first diaphragm and electrically connected to the electrical connection portion.

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Номер записи: 89

02-02-2017 дата публикации

SPEAKER

Номер: US20170034629A1

Автор: Mao Lubin, Wang Hongxing

Принадлежит: AAC Technologies Pte. Ltd.

A speaker is provided in the present disclosure. The speaker includes a shell, a magnetic system received in the shell for forming a magnetic gap, and a vibrating system. The vibrating system includes a membrane, a coil assembly for driving the membrane to vibrate. The coil assembly includes a coil arranged in the magnetic gap and a coil support for supporting the coil; the coil includes at least one lead wire. The vibrating system further includes a supporting assembly and a conductive module arranged on the supporting assembly, the coil support is connected between the membrane and the supporting assembly, and the at least one lead wire of the coil is connected to the conductive module on the supporting assembly. 1. A speaker , comprising:a shell;a magnetic system received in the shell for forming a magnetic gap; anda vibrating system comprising a membrane and a coil assembly for driving the membrane to vibrate;wherein the coil assembly comprises a coil arranged in the magnetic gap and a coil support for supporting the coil, the coil comprises at least one lead wire; the vibrating system further comprises a supporting assembly and a conductive module arranged on the supporting assembly, the coil support is connected between the membrane and the supporting assembly, and the at least one lead wire of the coil is connected to the conductive module on the supporting assembly.2. The speaker of claim 1 , wherein the coil comprises a pair of lead wires claim 1 , and the conductive module comprises a pair of conductive pads formed on the supporting assembly claim 1 , the pair of lead wires is respectively connected to the pair of the conductive pads.3. The speaker of claim 2 , wherein the conductive module further comprises two flexible connecting members claim 2 , each of the flexible connecting members is connected between a corresponding one of the conductive pads and a receiving end for receiving an electric signal.4. The speaker of claim 3 , wherein each of the ...

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Номер записи: 90

02-02-2017 дата публикации

SPEAKER

Номер: US20170034631A1

Автор: Ji Chengxia, Wang Hongxing

Принадлежит: AAC Technologies Pte. Ltd.

A speaker is provided in the present disclosure. The speaker includes a shell, a magnetic system received in the shell, and a vibrating system. The vibrating system includes a membrane and a coil assembly connecting to the membrane for driving the membrane to vibrate. The magnetic system is arranged at two opposite sides of the coil assembly; and the coil assembly is arranged perpendicular to the membrane. The coil assembly includes a coil and a coil support for supporting the coil, the coil support includes a main body and a first extending part extending from an edge of the main body, the coil is supported and fixed to the main body, and the first extending part is connected to the membrane. 1. A speaker , comprising:a shell;a magnetic system received in the shell; anda vibrating system comprising a membrane and a coil assembly connecting to the membrane for driving the membrane to vibrate;wherein the magnetic system is arranged at two opposite sides of the coil assembly; the coil assembly is arranged perpendicular to a vibration direction of the membrane, and comprises a coil and a coil support for supporting the coil, the coil support comprises a main body and a first extending part extending from an edge of the main body, the coil is supported and fixed to the main body, and the first extending part is connected to the membrane.2. The speaker of claim 1 , wherein the membrane comprises a first flat part and a first wrinkling part surrounding the first flat part claim 1 , and the first extending part of the coil support abuts against the first flat part of the membrane.3. The speaker of claim 2 , wherein the vibrating system further comprises a first dome claim 2 , the first dome is attached on the first flat part of the membrane claim 2 , and is arranged at a different side of the first flat part from the first extending part of the coil support.4. The speaker of claim 1 , wherein the coil support further comprises a second extending part extending from an ...

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Номер записи: 91

02-02-2017 дата публикации

SPEAKER

Номер: US20170034632A1

Автор: Guo Shun, Mao Lubin, Wang Hongxing

Принадлежит: AAC Technologies Pte. Ltd.

A speaker is provided in the present disclosure. The speaker includes a shell, a magnetic system received in the shell for providing a magnetic gap, and a vibrating system. The vibrating system includes a membrane, a voice coil arranged in the magnetic gap for driving the membrane to vibrate, and a coil support for supporting the voice coil. The coil support includes a first connecting member and a second connecting member parallel to each other and connected to the membrane, the voice coil is fixed between the first connecting member and the second connecting member. 1. A speaker , comprising:a shell;a magnetic system received in the shell for providing a magnetic gap;a vibrating system comprising a membrane, a voice coil arranged in the magnetic gap for driving the membrane to vibrate, and a coil support for supporting the voice coil;wherein the coil support comprises a first connecting member and a second connecting member parallel to each other and connected to the membrane, the voice coil is fixed between the first connecting member and the second connecting member.2. The speaker of claim 1 , wherein the first connecting member and the second connecting member provide a first fixing gap and a second fixing gap respectively claim 1 , and two opposite ends of the voice coil are respectively fixed in the first fixing gap and the second fixing gap.3. The speaker of claim 1 , wherein each of the first connecting member and the second connecting member comprises two parallel fixing parts and a connecting part connected between the fixing parts claim 1 , and the connecting part is connected to the membrane.4. The speaker of claim 3 , wherein each of the two fixing parts is in an elongated strip shape and comprises a connecting end claim 3 , and the connecting part is connected between the connecting ends of the two fixing parts to form a U-shaped structure.5. The speaker of claim 4 , wherein an end of the voice coil is sandwiched between the two fixing parts of the ...

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Номер записи: 92

04-02-2016 дата публикации

Vibrating body for speaker device and speaker device

Номер: US20160037262A1

Автор: Haruki HOSHIKAWA, Kazuharu Kawata, Takanobu Saito, Yoshihiro Sato

Принадлежит: Mogami Denki Corp, Pioneer Corp, Tohoku Pioneer Corp

Provided are a vibrating body for speaker device which prevents interlayer from peeling in advance and includes a large effective vibration area, and a speaker device including this vibrating body for speaker device. The vibrating body for speaker device includes a first interlaced fiber member, and a second interlaced fiber member which overlaps with the first interlaced fiber member, and one of the first interlaced fiber member and the second interlaced fiber member includes polyvinyl alcohol fibers containing boron, and an outer circumferential portion of the first interlaced fiber member is larger than an outer circumferential portion of the second interlaced fiber member.

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Номер записи: 93

04-02-2016 дата публикации

ELECTROSTATIC MICROPHONE WITH REDUCED ACOUSTIC NOISE

Номер: US20160037263A1

Автор: Barron Lance, Lee Sung, Pal Sagnik

Принадлежит:

A micro electro mechanical system (MEMS) microphone includes a base; a MEMS die disposed on the base; and a cover coupled to the base and enclosing the MEMS die. The MEMS die includes and diaphragm and back plate and posts extend from a first periphery of the back plate. The diaphragm is free to move within a boundary created by the posts. A front volume is formed on a first side of the diaphragm and a back volume is formed on a second side of the diaphragm between the diaphragm and the cover. A plurality of openings extend through the diaphragm about an outer periphery of the diaphragm, the openings being effective to mitigate noise. 1. A micro electro mechanical system (MEMS) microphone , the microphone comprising:a base;a MEMS die disposed on the base;a cover coupled to the base and enclosing the MEMS die;wherein the MEMS die includes and diaphragm and back plate;wherein posts extend from a periphery of the back plate;wherein the diaphragm is free to move within a boundary created by the posts;wherein a front volume is formed on a first side of the diaphragm and a back volume is formed on a second side of the diaphragm between the diaphragm and the cover;wherein a plurality of openings extend through the diaphragm about an outer periphery of the diaphragm, the openings being effective to mitigate noise.2. The MEMS microphone of claim 1 , further comprising an application specific integrated circuit.3. The MEMS microphone of claim 1 , further comprising a runner coupled to the diaphragm to further restrain diaphragm movement.4. The MEMS microphone of claim 1 , further comprising a flow restrainer disposed between the openings and the front volume.5. The MEMS microphone of claim 1 , wherein the base includes a port that communicates with the front volume.6. The MEMS microphone of claim 5 , wherein sound enters through the port.7. The MEMS microphone of claim 1 , openings are approximately 5 microns in diameter.8. An acoustic apparatus claim 1 , comprising:a ...

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Номер записи: 94

01-02-2018 дата публикации

ELECTRONIC DEVICE WITH SPEAKER

Номер: US20180035188A1

Автор: AN Youngjun, CHOI Hyun-Suk, HONG Jang-Hoon, KO Junho, LIM Ji-Young, YOO Wonwoo

Принадлежит:

An electronic device is disclosed that may include a housing including a first surface facing in a first direction, a second surface facing in a second direction, and a third surface, the first and second direction being generally opposed to one another, the third surface being positioned between the first and second surfaces and being generally orthogonal relative to the first and second directions; at least one speaker arranged in at least a part of the housing; and a speaker enclosure protecting the speaker. The speaker enclosure may include an upper speaker enclosure arranged to face the first surface; and a lower speaker enclosure arranged to face the second surface, and confronting the upper speaker enclosure. Each of the upper and lower speaker enclosures may be at least partially made with magnetic materials that shield a magnetic flux generated in the speaker. 1. An electronic device comprising:a housing including a first surface facing in a first direction, a second surface facing in a second direction, and a third surface, the first and second direction being generally opposed to one another, the third surface being positioned between the first and second surfaces and being generally orthogonal relative to the first and second directions;at least one speaker arranged in at least a part of the housing; anda speaker enclosure protecting the speaker, an upper speaker enclosure arranged to face the first surface; and', 'a lower speaker enclosure arranged to face the second surface, and confronting the upper speaker enclosure,, 'wherein the speaker enclosure compriseswherein each of the upper and lower speaker enclosures are at least partially made with magnetic materials that shield a magnetic flux generated in the speaker.2. The electronic device of claim 1 , wherein the speaker comprises a first speaker and a second speaker that are arranged approximately symmetrically relative to a home key of the electronic device when viewed from a front of the ...

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Номер записи: 95

01-02-2018 дата публикации

SILICA GEL DIAPHRAGM, RECEIVER MODULE, AND METHOD FOR PROCESSING SILICA GEL DIAPHRAGM

Номер: US20180035191A1

Автор: Guo Xiaodong, Liu Chunfa

Принадлежит: GOERTEK INC.

A silica gel diaphragm, a receiver module, and a method for processing a silica gel diaphragm. Two metal pieces are integrally injection-molded on the diaphragm, and symmetrically embedded into the diaphragm, and either end of each of the metal pieces is provided with first and second soldering portions; each of the first soldering portions is embedded into a planar portion of the diaphragm, and is used for soldering a winding tap of a voice coil on an inner side of the voice coil; each of the second soldering portions protrudes from or is embedded into the fixing portion of the diaphragm, and is used for soldering a bonding pad on a housing; and middle portions connecting the first soldering portions and the second soldering portions are embedded into the diaphragm to form an electrically conductive path. This technical solution increases the product stability. 1. A silica gel diaphragm , comprising a planar portion located at a center , a folded ring portion disposed at an edge of the planar portion , and a fixing portion connected to the periphery of the folded ring portion for bonding a housing , wherein two metal pieces are integrally injection-molded on the silica gel diaphragm , and symmetrically embedded into the silica gel diaphragm , and either end of each of the metal pieces is provided with a first soldering portion and a second soldering portion; andeach of the first soldering portions is embedded into the planar portion of the silica gel diaphragm that is closer to the folded ring portion, and is used for soldering a winding tap of a voice coil on an inner side of the voice coil; each of the second soldering portions protrudes from or is embedded into the fixing portion of the silica gel diaphragm, and is used for soldering a bonding pad on a housing; middle portions connecting the first soldering portions and the second soldering portions are embedded into the silica gel diaphragm to form an electrically conductive path.2. The silica gel diaphragm ...

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Номер записи: 96

01-02-2018 дата публикации

STRUCTURE FOR DETECTING VIBRATION DISPLACEMENT OF A SPEAKER AND ACOUSTOELECTRIC INTER-CONVERSION DUAL-EFFECT DEVICE

Номер: US20180035212A1

Автор: SHAO Minghui, YANG Jianbin

Принадлежит:

Disclosed is a structure for detecting the vibration displacement of a speaker, including: a vibration system having a movable pole plate; a magnetic circuit system; and a fixed pole plate provided under the vibration system and opposite to the movable pole plate, the movable pole plate and the fixed pole plate constituting a capacitor. Also disclosed is an acoustoelectric inter-conversion dual-effect device, further including an impedance transformer connected to the capacitor and including a field effect transistor and a diode. In the present invention, a movable pole plate of a capacitor is provided on a vibration system and a fixed pole plate is provided under the vibration system and fixed in position. When the vibration system vibrates, the change in capacitance is detected to calculate the actual displacement of the vibration system, which can reduce the power of the speaker device when the actual displacement of the vibration system exceeds a safety threshold. For an electronic device adopting such a speaker structure, the displacement of the vibration system of a speaker product can be detected in real time at the system end of the electronic device. 1. A structure for detecting the vibration displacement of a speaker , comprising:a vibration system having a movable pole plate;a magnetic circuit system; anda fixed pole plate provided under the vibration system and opposite to the movable pole plate, wherein the movable pole plate and the fixed pole plate constituting a capacitor.2. The structure according to claim 1 , wherein the vibration system includes a diaphragm and a voice coil located under the diaphragm claim 1 , wherein the diaphragm--includes an electret layer and a metal layer attached to the electret layer claim 1 , and the electret layer and the metal layer constitute the movable pole plate.3. The structure according to claim 2 , wherein the diaphragm further includes a plastic film layer laminated with the movable pole plate claim 2 , wherein ...

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Номер записи: 97

31-01-2019 дата публикации

ACOUSTIC TRANSDUCER WITH VIBRATION DAMPING

Номер: US20190037316A1

Автор: Pircaro Mark A.

Принадлежит: Bose Corporation

Circumferential mode vibrations, in a diaphragm of an acoustic transducer, are damped by defining at least one elongated opening extending radially along a portion of a length from the central area to the outer perimeter being covered by a material having higher damping properties than the material of the cone. 1. An acoustic transducer , comprising:a diaphragm made of a first material having a central area and an outer perimeter,at least one elongated opening in the diaphragm extending substantially radially along a portion of a length from the central area to the outer perimeter; anda surround, comprised of a foam material having relatively higher damping characteristics than the first material, arranged circumferentially about the outer perimeter of the diaphragm, wherein the surround comprises at least one projection extending from the outer perimeter toward the central area of the diaphragm, wherein the at least one projection is arranged to cover the at least one elongated opening.2. The acoustic transducer of claim 1 , wherein the at least one projection comprises a plurality of projections and the at least one elongated opening comprises a plurality of elongated openings claim 1 , each projection of the plurality of projections covering a respective elongated opening of the plurality of elongated openings.3. The acoustic transducer of claim 1 , wherein the diaphragm comprises only one elongated opening.4. The acoustic transducer of claim 1 , wherein the at least one projection covers a portion of an outer surface of the diaphragm.5. The acoustic transducer of claim 1 , further comprising at least one tinsel coupled to the diaphragm claim 1 , wherein the diaphragm has a center of mass and an axis of symmetry claim 1 , the at least one tinsel being and the at least one elongated opening claim 1 , at least in part claim 1 , being located on the opposite side of the axis of symmetry such that the center of mass of the diaphragm lies on or near the axis of ...

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Номер записи: 98

31-01-2019 дата публикации

SPEAKER DIAPHRAGM AND COIL COUPLING ARRAGEMENT, AND METHOD

Номер: US20190037318A1

Автор: OKAZAKI Koji, TOBISE Masahiro

Принадлежит:

A speaker comprising a diaphragm including a first layer defining a coil receiving opening therein, and a second layer attached to the first layer and traversing the coil receiving opening. The speaker further comprises a coil having an end extending into the coil receiving opening and abutting against a surface of the second layer that traverses the coil receiving opening. Thus, transmission efficiency between the coil and diaphragm is improved, which improves the audio quality of the speaker. 1. A speaker comprising:a diaphragm including a first layer defining a coil receiving opening therein, and a second layer attached to the first layer, extending across the coil receiving opening, and traversing the coil receiving opening.2. The speaker according to claim 1 , further comprisinga coil having an end extending into the coil receiving opening and abutting against a surface of the second layer that extends across the coil receiving opening and traverses the coil receiving opening.3. The speaker according to claim 2 , whereinthe end of the coil is attached to an edge of the first layer defining the coil receiving opening.4. The speaker according to claim 3 , further comprisingan adhesive that attaches the end of the coil to the edge of the first layer defining the coil receiving opening.5. The speaker according to claim 1 , whereinthe coil receiving opening is substantially circular.6. The speaker according to claim 5 , further comprisinga coil having a substantially cylindrical end extending into the coil receiving opening and abutting against a surface of the second layer that extends across the coil receiving opening and traverses the coil receiving opening.7. The speaker according to claim 1 , whereinthe second layer comprises a substantially planar portion that extends across the coil receiving opening and traverses the coil receiving opening.8. The speaker according to claim 1 , whereinthe second layer comprises a protruding portion that protrudes into the ...

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Номер записи: 99

31-01-2019 дата публикации

ELECTROACOUSTIC TRANSDUCER

Номер: US20190037319A1

Автор: Doshida Yutaka, Hamada Hiroshi, ISHII Shigeo, Tomita Takashi

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An electroacoustic transducer includes a dynamic speaker that generates a first acoustic sound, and a piezoelectric speaker that generates a second acoustic sound. The sum of the sound pressures of the first and second acoustic sounds in a crossover frequency range of the sound pressure of the first acoustic sound and the sound pressure of the second acoustic sound, is adjusted to be equal to or greater than 0.5 times the sound pressure of the first acoustic sound in the crossover frequency range so as to improve the acoustic properties in the crossover frequency range. 1. An electroacoustic transducer comprising:a dynamic speaker that generates a first acoustic sound; anda piezoelectric speaker that generates a second acoustic sound;wherein a sum of sound pressures of the first and second acoustic sounds in a crossover frequency range of a sound pressure of the first acoustic sound and a sound pressure of the second acoustic sound, is equal to or greater than 0.5 times the sound pressure of the first acoustic sound in the crossover frequency range.2. The electroacoustic transducer according to claim 1 , wherein the sum of sound pressures of the first and second acoustic sounds in the crossover frequency range is equal to or greater than one times the sound pressure of the first acoustic sound in the crossover frequency range.3. The electroacoustic transducer according to claim 1 , wherein:the piezoelectric speaker has a circular vibration plate; anda diameter of the vibration plate is 10 mm or less.4. The electroacoustic transducer according to claim 2 , wherein:the piezoelectric speaker has a circular vibration plate; anda diameter of the vibration plate is 10 mm or less.5. An electroacoustic transducer comprising:a dynamic speaker that generates a first acoustic sound; anda piezoelectric speaker that generates a second acoustic sound;{'sub': 1', '2', '1', '2, 'claim-text': {'br': None, 'sub': 1', '2', '1', '2, 'sup': 2', '2', '1/2, 'α≡{(cos θ+cos θ)+(sin θ+sin ...

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Номер записи: 100