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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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Форма поиска

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 3539. 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
14-06-2012 дата публикации

Piezoelectric speaker

Номер: US20120148073A1
Автор: Hye-jin Kim, Jongdae Kim, Woo Seok Yang
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Disclosed is a piezoelectric speaker including: a piezoelectric layer that converts electrical signals into oscillation and outputs sound; an electrode that is formed on a top or a bottom of the piezoelectric layer to apply the electrical signals to the piezoelectric layer; an acoustic diaphragm that is made of a hetero material including a first acoustic diaphragm and a second acoustic diaphragm and is attached to the bottom of the piezoelectric layer on which the electrode is formed; and a frame attached in a form enclosing a side of the acoustic diaphragm.

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Номер записи: 2
14-06-2012 дата публикации

Electrostatic Loudspeaker System

Номер: US20120148074A1
Автор: Gaston Bastiaens, Ronald Buining
Принадлежит: Individual

An electrostatic loudspeaker (ESL) system includes a damping screen adjacent an outside surface of at least one of its stators to reduce distortion of acoustic output rendered by the loudspeaker's diaphragm, including effects of resonance of the diaphragm. A resilient excursion limiter placed adjacent an inside surface of at least one of the stators prevents contact of the diaphragm with the stator. A conductive portion of the diaphragm is printed with a conductive ink layer that includes conductive nanofibers. The loudspeaker system includes a dipole-radiating ESL element, an unbaffled or partially baffled dynamic loudspeaker and a baffled monopole-radiating dynamic loudspeaker (subwoofer), all essentially co-planar. The unbaffled or partially baffled dynamic loudspeaker provides a smooth transition in sound between the dipole-radiating ESL element and the monopole-radiating subwoofer. The ESL system includes two or more invertedly-driven ESL elements of different sizes, each element handling a different range of frequencies.

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Номер записи: 3
27-06-2013 дата публикации

MEMS Tilt Sensor

Номер: US20130160547A1
Автор: Eric J. Lautenschlager, Sung Bok Lee
Принадлежит: Knowles Electronics LLC

An acoustic sensor includes a back plate; at least one back plate electrode coupled to the back plate; a proof of mass with the proof of mass elastically coupled to the back plate; and a proof of mass electrode coupled to the proof of mass. Movement of the sensor causes a capacitance between the proof of mass electrode and the at least one back plate electrode to vary and the capacitance represents a magnitude of the movement of the sensor.

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Номер записи: 4
14-11-2013 дата публикации

Piezoelectric speaker having weight and method of producing the same

Номер: US20130301856A1
Автор: Hye Jin Kim, Woo Seok Yang
Принадлежит: Electronics and Telecommunications Research Institute ETRI

The present disclosure relates to a piezoelectric speaker having a weight that enables a frequency response characteristic of the piezoelectric speaker to be uniform by disposing a weight of a flexible material on an acoustic diaphragm or on and below an acoustic diaphragm of the piezoelectric speaker, thereby enhancing flatness of sound. The piezoelectric speaker having the weight includes a piezoelectric device having a piezoelectric layer and an electrode formed on or on and below the piezoelectric layer to apply an electrical signal to the piezoelectric layer; an acoustic diaphragm having a wider area than the piezoelectric device and bonded on one surface of the piezoelectric device; a frame disposed in a form that surrounds a side surface of the acoustic diaphragm; and a weight disposed above the acoustic diaphragm or above and below the acoustic diaphragm on which the piezoelectric device is disposed to thereby control a vibration.

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Номер записи: 5
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: 6
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: 7
07-01-2016 дата публикации

ELECTROSTATIC MEMBRANE PUMP/TRANSDUCER AND METHODS TO MAKE AND USE SAME

Номер: US20160007124A1
Автор: Pinkerton Joseph F.
Принадлежит: CLEAN ENERGY LABS, LLC

An improved electrostatic membrane pump/transducer having an array of electrostatic membrane pump transducers that utilize a venturi channel. The electrically conductive membrane of the electrostatic membrane pump transducers can be a polymer membrane coated with a conductive coating. The electrostatic membrane pump transducers can be optionally controlled such that one set is out of phase with another set. 1. A device comprising an electrostatic membrane-based venturi pump system , wherein the electrostatic membrane-based venturi pump system comprises an array of electrostatic membrane pump transducers , wherein(a) the array of electrostatic membrane pump transducers comprise a first set comprising one or more first electrostatic membrane pump transducers,(b) the array of electrostatic membrane pump transducers comprise a second set comprising one or more second electrostatic membrane pump transducers, and (i) a chamber,', '(ii) an electrically conductive solid stator having an electrically conductive solid stator hole, wherein (A) the electrically conductive solid stator bounds part of the chamber and (B) is operable to allow fluid to flow into and out of the chamber through the electrically conductive solid stator hole,', '(iii) a venturi exit plate having a venturi exit plate hole, wherein (A) the venturi exit plate is located outside the chamber and (B) the venturi exit plate is operable to allow the fluid to flow out of the electrostatic membrane pump transducer through the venturi exit plate hole,', '(iv) a spacer located between the electrically conductive solid stator and the venturi exit plate to create a space therebetween,', '(v) a venturi channel located outside the first chamber, wherein the venturi channel is operable to allow fluid to flow from outside the first electrostatic membrane pump transducer to the space between the electrically conductive solid stator and the venturi exit plate and exit through the venturi exit plate hole,', '(vi) a first ...

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Номер записи: 8
14-01-2016 дата публикации

ELECTROACOUSTIC CONVERSION FILM, ELECTROACOUSTIC CONVERTER, FLEXIBLE DISPLAY, AND PROJECTOR SCREEN

Номер: US20160008852A1
Автор: MIYOSHI Tetsu
Принадлежит: FUJIFILM Corporation

The present invention provides an electroacoustic conversion film comprising: a polymeric composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material exhibiting viscoelasticity at normal temperature; and two or more electrode pairs, wherein one electrode and the other electrode of each of the electrode pairs are arranged on two opposite main surfaces of the polymeric composite piezoelectric body, respectively, to interpose the polymeric composite piezoelectric body therebetween, and thereby each of the electrode pairs forms an active region. 1. An electroacoustic conversion film , comprising:a polymeric composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material exhibiting viscoelasticity at normal temperature; andtwo or more electrode pairs,wherein one electrode and the other electrode of each of the electrode pairs are arranged on two opposite main surfaces of the polymeric composite piezoelectric body, respectively, to interpose the polymeric composite piezoelectric body therebetween, and thereby each of the electrode pairs forms an active region.2. The electroacoustic conversion film according to claim 1 ,wherein a plurality of electrodes, which are arranged on one main surface side of the polymeric composite piezoelectric body, of the electrode pairs is a common electrode.3. The electroacoustic conversion film according to claim 1 ,wherein all electrodes, which are arranged on one main surface side of the polymeric composite piezoelectric body, of the electrode pairs are a common electrode.4. The electroacoustic conversion film according to claim 1 ,wherein two active regions of a first active region and a second active region are formed by two electrode pairs of the two or more electrode pairs, anda signal of an R channel for stereo is input to the first active region, and a signal of an L channel for stereo is ...

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Номер записи: 9
08-01-2015 дата публикации

SPEAKER DIAPHRAGM AND PRODUCTION METHOD FOR SPEAKER DIAPHRAGM

Номер: US20150010197A1
Автор: KAWATA Kazuharu, Sato Yoshihiro, Takahashi Hideki
Принадлежит:

A diaphragm can be obtained which exhibits large internal loss and Young's modulus and which can be produced efficiently. A speaker diaphragm comprises at least one layer A formed by molding a component member configured by a fiber and a tangled fiber body of a synthetic fiber. The synthetic fiber is a polyvinyl alcohol fiber having boron. 1. A speaker diaphragm comprising at least one layer , whereinsaid layer is configured by a component member, which is a tangled fiber body,said tangled fiber body is configured by a fiber and a synthetic fiber different from said fiber, andsaid synthetic fiber is a polyvinyl alcohol fiber having boron.2. The speaker diaphragm according to claim 1 , whereinsaid layer is a first layer, andsaid component member is a first component member,said speaker diaphragm comprising said first layer and a second layer, andsaid second layer being configured by a second component member, which is a tangled fiber body.3. The speaker diaphragm according to claim 2 , wherein said synthetic fiber has a bending shape.4. The speaker diaphragm according to claim 3 , wherein weight of said synthetic fiber in said first layer is low with respect to weight of said fiber in said first layer.5. The speaker diaphragm according to claim 4 , wherein said fiber is a natural fiber.6. The speaker diaphragm according to claim 5 , wherein said first layer has mica.7. The speaker diaphragm according to claim 6 , wherein said mica is attached to said synthetic fiber.8. The speaker diaphragm according to claim 1 , wherein an internal loss and a Young's modulus of said speaker diaphragm are large with respect to an internal loss and a Young's modulus of a reference diaphragm having only a single layer configured by a tangled fiber body substantially configured by said fiber.9. The speaker diaphragm according to claim 1 , whereinan internal loss of said speaker diaphragm is larger than 0.0216, and{'sup': 9', '2, "a Young's modulus of said speaker diaphragm is larger ...

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Номер записи: 10
12-01-2017 дата публикации

MICROPHONE DIAPHRAGM

Номер: US20170013361A1
Автор: FRITSCH KENNETH E., Lettow John S., SCHEFFER DAN F.
Принадлежит: Vorbeck Materials Corp.

Embodiments of the present invention relate to microphones diaphragms. In one embodiment, a sensor comprising a diaphragm comprised of a composition having a plurality of individual graphene sheets. An emitter formed in a manner to transmit lights towards a surface of the diaphragm. A collector that captures at least a portion of light that is reflected by the diaphragm. A converter is in communication with the detector that converts a signal that is generated by the sensor to a digital signal for processing. The graphene-based composition includes graphene sheets. 1. A sensor comprising:a diaphragm comprised of a composition having individual graphene sheets;an emitter formed in a manner to transmit light towards a surface of the diaphragm;a collector that receives at least a portion of light reflected by the surface;a converter in communication with the collector that converts light received by the collector to a digital signal for processing; andwherein the diaphragm is made is manner to distort when impacted upon impact with a pressure wave.2. The sensor of claim 1 , wherein the surface is at least partially coated with silver claim 1 , aluminum claim 1 , lead claim 1 , gold claim 1 , platinum claim 1 , rhodium claim 1 , copper claim 1 , magnesium claim 1 , brass claim 1 , bronze claim 1 , titanium claim 1 , zirconium claim 1 , nickel claim 1 , tantalum claim 1 , tin claim 1 , a colloidal metal claim 1 , and/or an alloy thereof.3. The sensor of claim 1 , wherein the surface is at least partially coated with a reflective material or a metal.4. The sensor of claim 1 , wherein the collector is aligned radially about the emitter in a symmetric or asymmetric manner.5. The sensor of claim 1 , wherein the diaphragm is at least partially formed by a printing method.6. The sensor of claim 1 , wherein the composition further comprises graphite claim 1 , iron oxide claim 1 , carbon black claim 1 , a single-walled carbon nanotube claim 1 , a multi-walled carbon nanotube ...

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Номер записи: 11
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: 12
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: 13
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: 14
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: 15
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: 16
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: 17
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: 18
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: 19
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: 20
09-01-2020 дата публикации

DISTRIBUTED MODE LOUDSPEAKER ACTUATOR INCLUDING PATTERNED ELECTRODES

Номер: US20200015009A1
Автор: Harris Neil John
Принадлежит:

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for selecting distributed mode loudspeaker electrodes using an output frequency. One of the methods includes determining, for a piezoelectric transducer, a subset of frequencies, from a range of frequencies, at which to output a sound; selecting, based on the subset of frequencies, one or more electrode pairs from two or more electrode pairs included in the piezoelectric transducer to generate the sound; and providing, by a drive module connected to each of the two or more electrode pairs, current to each of the selected one or more electrode pairs to cause the piezoelectric transducer to generate a force that, when provided to a load, causes the load to generate the sound within the subset of frequencies. 1. (canceled)2. A distributed mode loudspeaker for generating sound waves within a range of frequencies , the distributed mode loudspeaker comprising:a panel extending in a plane;a piezoelectric transducer attached to a surface of the panel, the piezoelectric transducer comprising a layer comprising a piezoelectric material and electrode layers arranged on opposing sides of the layer of piezoelectric material, the electrode layers comprising two or more electrode pairs, each electrode pair comprising a first electrode on a first side of the opposing sides and a second electrode on a second side of the opposing sides;a support attached to the panel and to the piezoelectric transducer and configured to transfer forces from the piezoelectric transducer to the panel, the support separating the panel from the piezoelectric transducer, wherein the piezoelectric transducer extends parallel to the panel from the support to a free end of the piezoelectric transducer; anda drive module connected to each of the two or more electrode pairs and adapted to selectively provide current to a subset of the two or more electrode pairs to cause the piezoelectric transducer to generate a ...

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Номер записи: 21
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: 22
17-01-2019 дата публикации

Acoustically active articles

Номер: US20190016643A1
Автор: Fabian Stolzenburg, Marc D. Radcliffe, Noah O. Shanti, QIN Lin, Ronald W. Gerdes
Принадлежит: 3M Innovative Properties Co

Articles and methods of making and using the articles are provided. The articles include inorganic agglomerates having an average dimension in a range from about 50 microns to about 2 mm. The porous agglomerates each include a network of carbon or silica, and metal oxide particles embedded in the network. Some agglomerates are capable of lowering a resonant frequency of an acoustic device when the resonant frequency is in a range from about 50 Hz to about 1500 Hz.

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Номер записи: 23
03-02-2022 дата публикации

ACOUSTICALLY RESISTIVE SUPPORTED MEMBRANE ASSEMBLIES INCLUDING AT LEAST ONE SUPPORT STRUCTURE

Номер: US20220036873A1
Автор: Gibbons Wayne M., Lampert Zachary E., Zhang Yitian
Принадлежит: W. L. Gore & Associates, Inc.

Water impermeable, air permeable membrane assemblies are described herein. In some embodiments, the assemblies include a polymer membrane and at least one support structure. Certain assemblies are configured to provide an acoustic impedance having phase angle of +45 degrees to −45 over a frequency range of 50 to 20,000 Hz. 1. An assembly comprising:a polymer membrane; and 'wherein at least a portion of the at least one support structure is in contact with the polymer membrane;', 'at least one support structure,'}wherein the assembly has an airflow resistance of from 100 to 50,000 Rayls;wherein the assembly has an effective stiffness from 0.0002 Pa/nm to 3,000 Pa/nm when measured using a Vibrational Displacement Test (“VDT”); andwherein the assembly has an acoustic impedance with a phase angle of +45 degrees to −45 degrees over a frequency range of 50 to 20,000 Hz as measured by an Impedance Tube Transfer Matrix Test (“ITTMT”).2. The assembly of claim 1 , wherein from 1% to 50% of the at least one support structure is in contact with the polymer membrane.3. The assembly of claim 1 , wherein the assembly has a water entry pressure (“WEP”) ranging from 10 psi to 350 psi measured in accordance with a Capillary Piston Test (“CPT”).4. The assembly of claim 1 , wherein the assembly exhibits a transmission loss of from 3 dB to 48 dB when measured by an Impedance Tube Transfer Matrix Test (“ITTMT”) over a frequency range of 50 to 20 claim 1 ,000 Hz.5. The assembly of claim 1 , wherein the assembly comprises a first support structure and a second support structure claim 1 ,wherein the polymer membrane is sandwiched between the first support structure and the second support structure;wherein the assembly comprises a first support structure and a second support structure, andwherein the polymer membrane is sandwiched between the first support structure and the second support structure.6. The assembly of claim 5 , wherein the first and second support structures comprise a ...

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Номер записи: 24
21-01-2016 дата публикации

SPEAKER SYSTEM

Номер: US20160021465A1
Автор: MIYOSHI Tetsu
Принадлежит: FUJIFILM Corporation

The present invention provides a speaker system comprising: an electroacoustic converter film composed of a polymeric composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material that exhibits viscoelasticity at normal temperature, and thin film electrodes formed on both surfaces of the polymeric composite piezoelectric body; and a driving circuit that attenuates signal intensity of an input signal from a signal source at a rate of 5 dB to 7 dB per octave and supplies the attenuated input signal to the electroacoustic converter film.

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Номер записи: 25
03-02-2022 дата публикации

Inertial exciters, drive units and loudspeakers

Номер: US20220038824A1
Автор: David Corynen
Принадлежит: PSS Belgium NV

An inertial exciter for use with an acoustic radiator, the inertial exciter comprising: a magnet assembly including a magnet unit configured to provide a magnetic field in an air gap, wherein the air gap extends around a movement axis of the inertial exciter; a coil assembly including: an attachment portion configured to provide an attachment between the coil assembly and the acoustic radiator; a voice coil; a voice coil former which extends from the attachment portion into the air gap.

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Номер записи: 26
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: 27
16-01-2020 дата публикации

GLASS SHEET COMPOSITE

Номер: US20200021916A1
Автор: AKIYAMA Jun, HAYASHI Masayuki, Ishida Hikaru
Принадлежит: AGC Inc.

The purpose of the present invention is to provide a glass sheet composite having satisfactory acoustic performance. The present invention relates to a glass sheet composite including a diaphragm that is vibrated by a vibrator, and a support member that is attached along an edge portion of the diaphragm to support the diaphragm, in which the diaphragm includes at least one glass sheet, and is supported on the support member through a fixing part that fixes the edge portion of the diaphragm to the support member, and a vibration-permitting part that permits vibration of the diaphragm. 1. A glass sheet composite comprising a diaphragm that is vibrated by a vibrator , and a support member that is attached along an edge portion of the diaphragm to support the diaphragm , wherein:the diaphragm comprises at least one glass sheet, and is supported on the support member through a fixing part that fixes the edge portion of the diaphragm to the support member, and a vibration-permitting part that permits vibration of the diaphragm.2. The glass sheet composite according to claim 1 , wherein:the diaphragm is formed into a rectangular shape having edge portions in four sides thereof, andthe support member is formed into a frame-like body which can be attached along the edge portions of the four sides of the diaphragm.3. The glass sheet composite according to claim 1 , wherein:the diaphragm is formed into a rectangular shape having edge portions in four sides thereof, andthe support member is formed into a solid plate which can be attached to one side of the diaphragm.4. The glass sheet composite according to claim 1 , wherein the fixing part is disposed intermittently along the edge portion of the diaphragm.5. The glass sheet composite according to claim 1 , wherein the fixing part is disposed in an edge portion near a corner portion of the diaphragm.6. The glass sheet composite according to claim 1 , wherein an area where the fixing part is disposed in the edge portion of the ...

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Номер записи: 28
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: 29
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: 30
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: 31
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: 32
04-02-2016 дата публикации

Micromechanical Structure and Method for Fabricating the Same

Номер: US20160031701A1
Автор: Denifl Günter, Frischmuth Tobias, Grille Thomas, Hedenig Ursula, IRSIGLER Peter, Kahn Markus, Maurer Daniel, Schmid Ulrich
Принадлежит:

A micromechanical structure includes a substrate and a functional structure arranged at the substrate. The functional structure has a functional region configured to deflect with respect to the substrate responsive to a force acting on the functional region. The functional structure includes a conductive base layer and a functional structure comprising a stiffening structure having a stiffening structure material arranged at the conductive base layer and only partially covering the conductive base layer at the functional region. The stiffening structure material includes a silicon material and at least a carbon material. 1. A micro mechanical structure comprising:a substrate; anda functional structure arranged at the substrate;wherein the functional structure comprises a functional region configured to deflect with respect to the substrate responsive to a force acting on the functional region;wherein the functional structure comprises a conductive base layer;wherein the functional structure comprises a stiffening structure having a stiffening structure material arranged at the conductive base layer and only partially covering the conductive base layer at the functional region; andwherein the stiffening structure material comprises a silicon material and at least a carbon material.2. The micro mechanical structure according to claim 1 , wherein the stiffening structure material comprises the carbon material with a concentration that is at least 1% of the concentration of the silicon material.3. The micro mechanical structure according to claim 1 , wherein the stiffening structure material additionally comprises at least one of a nitrogen material claim 1 , an oxygen material claim 1 , a titanium material claim 1 , a molybdenum material and a tantalum material with a material concentration.4. The micro mechanical structure according to claim 3 , wherein the material concentration varies along a thickness direction of the stiffening structure.5. The micro mechanical ...

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Номер записи: 33
31-01-2019 дата публикации

GLASS SHEET COMPOSITE

Номер: US20190030862A1
Автор: AKIYAMA Jun
Принадлежит: AGC Inc.

The present invention is a glass sheet composite in which the loss coefficient is 1×10or more and the longitudinal wave acoustic velocity in the sheet thickness direction is 5.5×10m/s or more. 1. A glass sheet composite having a loss coefficient at 25° C. of 1×10or more and a longitudinal wave acoustic velocity in a sheet thickness direction of 5.5×10m/s or more.2. The glass sheet composite according to claim 1 , comprising two or more glass sheets and a liquid layer between at least a pair of glass sheets-out of the glass sheets.3. The glass sheet composite according to claim 2 , wherein a thickness of the liquid layer is1/10 or less of a total thickness of the pair of glass sheets when the total thickness of the pair of glass sheets is 1 mm or less, and100 μm or less when the total thickness of the pair of glass sheets is more than 1 mm.4. The glass sheet composite according to claim 2 , wherein the liquid layer has a viscosity coefficient at 25° C. of 1×10to 1×10Pa·s and a surface tension at 25° C. of 15 to 80 mN/m.5. The glass sheet composite according to claim 2 , wherein both of at least a pair of glass sheets out of all the glass sheets have a specific modulus of 2.5×10m/sor more.6. The glass sheet composite according to claim 2 , wherein out of two glass sheets constituting the pair of glass sheets claim 2 , denoting Qa and wa respectively as a resonant frequency and a half-width of resonance amplitude of one glass sheet A and denoting Qb and wb respectively as a resonant frequency and a half-width of resonance amplitude of the other glass sheet B claim 2 , Qa claim 2 , wa claim 2 , Qb and wb satisfy a relationship:{'br': None, 'i': wa+wb', 'Qa−Qb|., '()/4<|'}7. The glass sheet composite according to claim 2 , wherein a mass ratio of two glass sheets constituting the pair of glass sheets is from 0.8 to 1.25.8. The glass sheet composite according to claim 2 , wherein a sheet thickness of each of two glass sheets constituting the pair of glass sheets is from 0 ...

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Номер записи: 34
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: 35
09-02-2017 дата публикации

SPEAKER DIAPHRAGM FABRIC AND MANUFACTURING METHOD THEREOF

Номер: US20170037547A1
Автор: OHARA Hiroshi
Принадлежит:

A method of manufacturing a speaker diaphragm fabric for a loudspeaker, includes: a preparation step, a plurality of first warps, at least one second warp and a plurality of wefts are prepared, wherein the second warp has characteristics different from the first warps; and a weaving step: the plurality of the first warps and the second warps are aligned and the wefts transversely cross and pass alternately over and under each of the first warps and the second warps in order to form the speaker diaphragm fabric having at least one formation region and a non-formation region exterior to the formation region. The second warps made from an inferior material are provided at the non-formation region, thereby reducing the waste cost and facilitating the differentiation of the formation region and the non-formation region. 1. A method of manufacturing a speaker diaphragm fabric , comprising:a preparation step: preparing a plurality of first warps, at least one second warp and a plurality of wefts, wherein said second warp has at least one characteristic different from said first warps; anda weaving step: aligning said plurality of first warps and said second warps and crossing said wefts transversely to pass alternately over and under each of said first warps and said second warps in order to form a speaker diaphragm fabric having at least one formation region and a non-formation region exterior to said formation region, said second warps are provided at said non-formation region.2. The manufacturing method of a speaker diaphragm fabric according to claim 1 , wherein said first warps are different from said second warps in materials claim 1 , colors and/or dimensions.3. The manufacturing method of a speaker diaphragm fabric according to claim 1 , wherein in said preparation step claim 1 , a plurality of said second warps are prepared;and in said weaving step, two portions of said second warps are respectively provided at said non-formation region between said formation ...

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Номер записи: 36
04-02-2021 дата публикации

INSERT MOLDED OR OVER MOLDED INSULATING LAYERS ON ENCLOSURES FOR MICROPHONE ASSEMBLIES

Номер: US20210037330A1
Автор: Borna Lili, Lim Tony K., Talag Norman Dennis
Принадлежит:

A microphone assembly comprises a substrate. An acoustic transducer is disposed on the substrate and configured to generate an electrical signal responsive to an acoustic signal. An integrated circuit is disposed on the substrate and electrically coupled to the acoustic transducer. An enclosure is disposed on the substrate, and comprises a main body, and a sidewall projecting axially from outer edges of the main body towards the substrate and contacting the substrate such that an internal volume is defined between the enclosure and the substrate. An insulating layer is insert molded on an inner surface of the enclosure, or over molded on an outer surface of the enclosure such that the insulating layer is not disposed on a portion of the sidewall proximate to the substrate. 1. A microphone assembly , comprising:a substrate;an acoustic transducer disposed on the substrate, the acoustic transducer configured to generate an electrical signal responsive to an acoustic signal;an integrated circuit disposed on the substrate and electrically coupled to the acoustic transducer; and a main body, and', 'a sidewall projecting axially from outer edges of the main body towards the substrate and contacting the substrate such that an internal volume is defined between the enclosure and the substrate; and, 'an enclosure disposed on the substrate, the enclosure comprisingan insulating layer insert molded on an inner surface of the enclosure such that the insulating layer is not disposed on a portion of the sidewall proximate to the substrate.2. The microphone assembly of claim 1 , wherein a surface of the insulating layer is in continuous contact with a corresponding surface of the enclosure.3. The microphone assembly of claim 1 , wherein a height of the portion is less than three-quarters of a height of the sidewall.4. The microphone assembly of claim 1 , wherein the insulating layer has a thickness in a range of 50-100 microns.5. The microphone assembly of claim 1 , wherein the ...

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Номер записи: 37
11-02-2016 дата публикации

Loudspeaker Diaphragm

Номер: US20160044418A1
Автор: LITTLE RICHARD WARREN
Принадлежит:

Embodiments are provided for configurations of a loudspeaker. The loudspeaker may include a frame, a magnetic structure having a magnetic gap, a voice coil suspended within the magnetic gap, a first suspension element, a diaphragm, and a second suspension element. The first suspension element may have an inner rim and an outer rim attached to the frame. The diaphragm may have an outer portion and a continuous central portion attached to the voice coil via a first coupler. The outer portion of the diaphragm may be attached to the inner rim of the first suspension element. The second suspension element may have an inner rim and an outer rim attached to the frame. The inner rime of the second suspension element may be attached to the diaphragm via a second coupler along a circumferential middle section of the diaphragm between the continuous central portion and outer portion of the diaphragm.

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Номер записи: 38
11-02-2016 дата публикации

Piezoelectric Speaker Device

Номер: US20160044421A1
Автор: Ando Masamichi
Принадлежит:

A piezoelectric speaker device that includes an organic polymer piezoelectric film, at least one pair of electrodes provided in contact with the piezoelectric film and the at least one pair of electrodes including a user-side electrode on a first side of the piezoelectric film, an insulation layer on the user-side electrode, a flaw detection electrode line on the insulation layer, and a detection circuit configured to detect whether the flaw detection electrode line is in a normal electric conduction state. 1. A piezoelectric device comprising:an organic polymer piezoelectric film;at least one pair of electrodes provided in contact with the piezoelectric film and the at least one pair of electrodes including a user-side electrode on a first side of the piezoelectric film;an insulation layer on the user-side electrode;a flaw detection electrode line on the insulation layer; anda detection circuit configured to detect whether the flaw detection electrode line is in a normal electric conduction state.2. The piezoelectric speaker device according to claim 1 , further comprising a protective layer on the insulation layer and overlaying the flaw detection electrode line.3. The piezoelectric speaker device according to claim 2 , wherein the protective layer is made of a resin selected from the group consisting of polyethylene terephthalate claim 2 , polyethylene naphthalate claim 2 , polymethylmethacrylate claim 2 , polycarbonate and polypropylene.4. The piezoelectric speaker device according to claim 1 , further comprising a notification circuit configured to notify a user when the detection circuit has recognized damage in the flaw detection electrode line.5. The piezoelectric speaker device according to claim 1 , wherein the flaw detection electrode line includes at least portions extending in two directions different from each other.6. The piezoelectric speaker device according to claim 5 , wherein the flaw detection electrode line includes a portion extending in a ...

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Номер записи: 39
09-02-2017 дата публикации

METHOD FOR MANUFACTURING THERMAL BIMORPH DIAPHRAGM AND MEMS SPEAKER WITH THERMAL BIMORPHS

Номер: US20170041719A1
Автор: QIU Guanxun, TAO Jifang, Wang Zhe, ZOU Quanbo
Принадлежит: GOERTEK INC.

The present invention provides a method for manufacturing a thermal bimorph diaphragm and a MEMS speaker with thermal bimorphs, wherein the method comprises the steps of: thermally oxidizing a substrate to obtain an insulating layer thereon and providing a metal layer on the insulating layer; providing a sacrificial layer on the metal layer; providing a first thermal bimorph layer on the sacrificial layer; providing a second thermal bimorph layer on the first thermal bimorph layer; providing a metal connecting layer at the positions on the metal layer where the sacrificial layer is not provided; forming corresponding back holes on the substrate and the insulating layer and releasing the sacrificial layer; forming the thermal bimorph diaphragm which is warped with the first thermal bimorph layer and the second thermal bimorph layer after the sacrificial layer is released. 1. A method for manufacturing a thermal bimorph diaphragm , comprising:thermally oxidizing a substrate to obtain an insulating layer thereon and providing a metal layer on the insulating layer;providing a sacrificial layer on the metal layer;providing a first thermal bimorph layer on the sacrificial layer;providing a second thermal bimorph layer on the first thermal bimorph layer;providing a metal connecting layer at the positions on the metal layer where the sacrificial layer is not provided, wherein the metal connecting layer serves as a connection point of the thermal bimorph diaphragm;forming corresponding back holes on the substrate and the insulating layer and releasing the sacrificial layer; andforming the thermal bimorph diaphragm which is warped with the first thermal bimorph layer and the second thermal bimorph layer after the sacrificial layer is released.2. The method for manufacturing a thermal bimorph diaphragm of claim 1 , wherein at least two of the thermal bimorph diaphragms are connected to each other by their connection points to form a thermal bimorph diaphragm array.3. The ...

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Номер записи: 40
08-02-2018 дата публикации

DIFFERENTIAL-CAPACITANCE TYPE MEMS MICROPHONE

Номер: US20180041840A1
Автор: ZHENG Guoguang
Принадлежит: GOERTEK.INC

The present invention discloses a differential-capacitance type MEMS microphone, comprising a circuit board, a first MEMS chip and a second MEMS chip; wherein the first MEMS chip comprises a first substrate disposed on the circuit board, and a first capacitor disposed on the first substrate, the first capacitor comprising a first back pole plate located above, a first vibrating diaphragm located below, and a first isolating layer disposed between the first back pole plate and the first vibrating diaphragm; the second MEMS chip comprises a second substrate disposed on the circuit board, and a second capacitor disposed on the second substrate, the second capacitor comprising a second back pole plate located below, a second vibrating diaphragm located above, and a second isolating layer disposed between the second back pole plate and the second vibrating diaphragm; and the first capacitor and the second capacitor form a pair of differential capacitors. 1. A differential-capacitance type MEMS microphone , the MEMS microphone comprising:a circuit board, a first MEMS chip and a second MEMS chip,wherein the first MEMS chip comprises a first substrate disposed on the circuit board, the first substrate being provided with a first opening running through from top to bottom; and a first capacitor disposed on the first substrate, the first capacitor comprising a first back pole plate located above, a first vibrating diaphragm located below and opposite to the first back pole plate, and a first isolating layer disposed between the first back pole plate and the first vibrating diaphragm;the second MEMS chip comprises a second substrate disposed on the circuit board, the second substrate being provided with a second opening running through from top to bottom; and a second capacitor disposed on the second substrate, the second capacitor comprising a second back pole plate located below, a second vibrating diaphragm located above and opposite to the second back pole plate, and a ...

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Номер записи: 41
06-02-2020 дата публикации

MEMS MICROPHONE DEVICE AND ELECTRONICS APPARATUS

Номер: US20200039816A1
Автор: ZOU Quanbo
Принадлежит:

An MEMS microphone device and an electronics apparatus are provided. The MEMS microphone device comprises: a substrate; a MEMS microphone element placed on the substrate; a cover encapsulating the MEMS microphone element together with the substrate; and an acoustic port for the MEMS microphone element, wherein a compliant membrane is provided to seal the acoustic port, and the membrane has a mechanical stiffness lower than that of the diaphragm of the MEMS microphone element. 1. A MEMS microphone device , comprising:a substrate;a MEMS microphone element placed on the substrate;a cover encapsulating the MEMS microphone element together with the substrate; andan acoustic port for the MEMS microphone element,wherein a compliant membrane is provided to seal the acoustic port, and the membrane has a mechanical stiffness lower than that of the diaphragm of the MEMS microphone element.2. The MEMS microphone device according to claim 1 , wherein the acoustic port is provided in the substrate or the cover.3. The MEMS microphone device according to claim 1 , wherein an ASIC for the MEMS microphone element is also sealed by the substrate claim 1 , the cover and the compliant membrane.4. The MEMS microphone device according to claim 1 , wherein the compliant membrane is made of at least one of the followings: silicon claim 1 , polysilicon claim 1 , silicon nitride claim 1 , silicon oxide claim 1 , polymer claim 1 , plastics claim 1 , elastomer claim 1 , metal claim 1 , alloy claim 1 , metallic glass claim 1 , or dielectrics claim 1 , which have a higher elongation or ultimate strength than that of silicon materials.5. The MEMS microphone device according to claim 1 , wherein the compliant membrane has a Young's modulus of less than 100 GPa.6. The MEMS microphone device according to claim 1 , wherein the compliant membrane is flat or is pre-buckled in rest position.7. The MEMS microphone device according to claim 1 , wherein the compliant membrane is air permeable.8. The MEMS ...

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Номер записи: 42
07-02-2019 дата публикации

Improvements in or relating to audio transducers

Номер: US20190045306A1
Автор: David John Palmer, Michael Ian Palmer
Принадлежит: Wing Acoustics Ltd

The invention relates to audio transducers, such as loudspeaker, microphones and the like, and includes improvements in or relating to: audio transducer diaphragm structures and assemblies, audio transducer mounting systems; audio transducer diaphragm suspension systems, personal audio devices incorporating the same and any combination thereof. The embodiments of the invention include linear action and rotational action transducers. For both types of transducer, rigid and composite diaphragm constructions and unsupported diaphragm periphery designs are described. Systems and methods for mounting the transducer to a housing, such as an enclosure or baffle are also described. Furthermore, hinge systems including: rigid contact hinge systems and flexible hinge systems are also disclosed for various rotational action transducer embodiments. Various applications and implementations are described and envisaged for the audio transducer embodiments including, for example, personal audio devices such as headphones, earphones and the like.

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Номер записи: 43
07-02-2019 дата публикации

INVERTED BUTTON CAP IN ACOUSTIC TRANSDUCER

Номер: US20190045313A1
Автор: DIEHL Scott
Принадлежит:

An inverted button cap of an electroacoustic transducer has a diaphragm, a bobbin coupled to the diaphragm, and a dust cap supported by the bobbin and coupled to the diaphragm via the bobbin. The dust cap includes a concave surface that faces outwardly away from the bobbin. According to an example, an adhesive joint couples the diaphragm, dust cap, and the bobbin to provide a seal at the junction of the diaphragm and the bobbin. A convex surface of the dust cap, opposite the concave surface, extends into a cavity formed by the bobbin. 1. An electroacoustic transducer comprising:a diaphragm;a bobbin coupled to the diaphragm;a dust cap supported by the bobbin and coupled to the diaphragm via the bobbin, the dust cap including a concave surface that faces outwardly away from the bobbin, wherein the dust cap includes a cylindrical flange surface, wherein the flange surface contacts an exterior circumference of the bobbin; andan adhesive joint coupling the dust cap, the diaphragm, and the bobbin, wherein the adhesive joint provides a watertight seal at the junction of the dust cap, the diaphragm, and the bobbin.2. The electroacoustic transducer of claim 1 , wherein the dust cap includes a flange surface that circumferentially surrounds a first end portion of the bobbin.35-. (canceled)4. (canceled)6. The electroacoustic transducer of claim 1 , wherein the flange surface extends in a substantially parallel direction to a surface of the bobbin.7. The electroacoustic transducer of claim 1 , wherein the dust cap includes a lip that extends outwardly from the flange surface.8. (canceled)9. The electroacoustic transducer of claim 1 , wherein the bobbin comprises a hollow cylinder claim 1 , and wherein the dust cap includes a cylindrical wall disposed around a periphery of the concave surface claim 1 , wherein the cylindrical wall concentrically surrounds a first end portion of the hollow cylinder.10. (canceled)11. The electroacoustic transducer of claim 1 , wherein a convex ...

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Номер записи: 44
06-02-2020 дата публикации

SPEAKER

Номер: US20200045427A1
Автор: Chen Aixin, Chen Minmin, ZHAO BIN
Принадлежит:

A speaker is provided, including a holder, a diaphragm fixed to the holder, and a voice coil located under the diaphragm and configured to drive the diaphragm to vibrate to sound. The diaphragm includes a diaphragm body, a protruding portion extending from the diaphragm body while being bent towards the voice coil, and a dome fitted to the protruding portion. The protruding portion includes a first wall and a second wall connected to the first wall and parallel to the diaphragm body. The diaphragm body is provided with a suspension disposed around the dome. The speaker of the present disclosure has the diaphragm of an improved structure, which greatly increases the adhesion between the dome and the diaphragm, effectively improves the reliability of the product, reduces the total harmonic distortion, and improves the acoustic performance of the product. 1. A speaker , comprising:a holder,a diaphragm fixed to the holder, the diaphragm comprising a diaphragm body, a protruding portion and a dome, anda voice coil located under the diaphragm and configured to drive the diaphragm to vibrate to sound,wherein the protruding portion extends from the diaphragm body while being bent towards the voice coil, and the dome is fitted to the protruding portion; the protruding portion comprises a first wall and a second wall connected to the first wall and parallel to the diaphragm body; and the diaphragm body is provided with a suspension disposed around the dome.2. The speaker as described in claim 1 , wherein the protruding portion is disposed at a central region of the diaphragm body claim 1 , and the protruding portion is disposed at a position closer to a center side of the diaphragm body than the suspension.3. The speaker as described in claim 2 , wherein the first wall claim 2 , the second wall and the diaphragm body form a receiving groove claim 2 , and the dome is fitted to the receiving groove.4. The speaker as described in claim 3 , wherein the first wall is perpendicular ...

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Номер записи: 45
06-02-2020 дата публикации

SPEAKER

Номер: US20200045432A1
Автор: Hu Hongjian, Li Shuai, SU MIN
Принадлежит:

A speaker includes a holder and a vibration unit and a magnetic circuit unit fixed and held at the holder. The vibration unit includes: a first diaphragm and an elastic support located at an end of the voice coil facing away from the first diaphragm and elastically supporting the voice coil. The elastic support includes a flexible circuit board and a second diaphragm fixed and held at one side of the flexible circuit board facing away from the voice coil. The flexible circuit board is sandwiched between the voice coil and the second diaphragm and includes an upper surface fixed to the voice coil and a lower surface opposite to the upper surface. The second diaphragm is fixed to the lower surface by a binder, and the lower surface is recessed towards the upper surface to form a binder accommodation groove. 1. A speaker , comprising:a holder;a vibration unit fixed and held at the holder; anda magnetic circuit unit fixed and held at the holder, a first diaphragm;', 'a voice coil located on a side of the first diaphragm and configured to drive the first diaphragm to vibrate and emit sound; and', 'at least one elastic support, each of the at least one elastic support being located at an end of the voice coil facing away from the first diaphragm and configured to elastically support the voice coil, wherein each of the at least one elastic support comprises a flexible circuit board and a second diaphragm fixed and held at one side of the flexible circuit board facing away from the voice coil,, 'wherein the vibration unit compriseswherein the flexible circuit board is sandwiched between the voice coil and the second diaphragm and comprises an upper surface fixed to the voice coil and a lower surface opposite to the upper surface, andwherein the second diaphragm is fixed to the lower surface by a binder, and the lower surface is recessed towards the upper surface to form a binder accommodation groove.2. The speaker as described in claim 1 , wherein the flexible circuit board ...

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Номер записи: 46
06-02-2020 дата публикации

SPEAKER AND METHOD FOR MANUFACTURING THE SAME

Номер: US20200045457A1
Автор: Linghu Ronglin, Xiao Bo
Принадлежит:

A speaker and a method for manufacturing the speaker are provided. The speaker includes: a vibration unit; a magnetic circuit unit; and a housing for receiving the vibration unit and the magnetic circuit unit. The vibration unit includes: a first diaphragm fixed to the housing; a voice coil arranged under the first diaphragm to drive the first diaphragm to vibrate and emit sound; and an elastic support member arranged under the voice coil, fixed to the housing and elastically supporting the voice coil. The elastic support member includes a flexible circuit board connected to the voice coil and a second diaphragm fixed under the flexible circuit board. The housing includes a holder, the elastic support member is fixed to the holder, and the flexible circuit board is attached and fixed to the second diaphragm. 1. A speaker , comprising:a vibration unit;a magnetic circuit unit; anda housing for receiving the vibration unit and the magnetic circuit unit, a first diaphragm fixed to the housing;', 'a voice coil arranged under the first diaphragm to drive the first diaphragm to vibrate and emit sound; and', 'an elastic support member arranged under the voice coil, fixed to the housing and elastically supporting the voice coil, the elastic support member comprising a flexible circuit board connected to the voice coil and a second diaphragm fixed under the flexible circuit board,', 'wherein the housing comprises a holder, the elastic support member is fixed to the holder, and the flexible circuit board is attached and fixed to the second diaphragm., 'wherein the vibration unit comprises2. The speaker as described in claim 1 , wherein the flexible circuit board and the second diaphragm are attached into one piece by a thermosetting adhesive.3. The speaker as described in claim 2 , wherein the flexible circuit board comprises a first inner edge glued to the voice coil claim 2 , a first outer edge glued to the holder claim 2 , and a beam connecting the first inner edge with the ...

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Номер записи: 47
06-02-2020 дата публикации

SOUND DEVICE

Номер: US20200045458A1
Автор: Zhang Long, Zhou Jiasheng
Принадлежит:

The present disclosure provides a sound device which includes a vibration system, a magnetic circuit system, and a basket that accommodates the vibration system and the magnetic circuit system. The vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate. The fixing portion includes a first fixing portion fixed to the upper surface and extending to an edge of the upper surface and a second fixing portion extending from the first fixing portion and along the outer side surface. The second fixing portion in a continuous ring shape is around an end of the outer side surface close to the upper surface in a sealing manner, and a thickness of the second fixing portion is increasing in a direction away from the upper surface. 1. A sound device , comprising a vibration system , a magnetic circuit system , and a basket that accommodates the vibration system and the magnetic circuit system , wherein the vibration system comprises a diaphragm and a voice coil that drives the diaphragm to vibrate , and the diaphragm comprises a dome , a folded ring surrounding the dome and a fixing portion extending from an edge of the folded ring and fixed to the basket , wherein the basket comprises an upper surface opposite to the dome , a lower surface opposite to the upper surface , and an outer side surface connecting the upper surface and the lower surface , the fixing portion comprises a first fixing portion fixed to the upper surface and extending to an edge of the upper surface and a second fixing portion extending from the first fixing portion and along the outer side surface , the second fixing portion in a continuous ring shape is around an end of the outer side surface close to the upper surface , and a thickness of the second fixing portion is increasing in a direction away from the upper surface.2. The sound device according to claim 1 , wherein the diaphragm is a silica gel membrane claim 1 , and the diaphragm and the basket are integrally ...

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Номер записи: 48
06-02-2020 дата публикации

SPEAKER

Номер: US20200045463A1
Автор: Mao Lubin, Tang Yun
Принадлежит:

The present disclosure provides a speaker which includes a frame, and a vibration system and a magnetic circuit system that are accommodated in the frame, where the magnetic circuit system is configured to drive the vibration system to vibrate and produce sound. The vibration system includes a diaphragm for vibrating and producing sound and a voice coil for driving the diaphragm to vibrate, and the magnetic circuit system includes a yoke fixedly connected to one end of the frame away from the diaphragm and a magnet assembled on the yoke. The vibration system further includes an iron core for driving the diaphragm to vibrate, and the voice coil is wound around the iron core. Compared with a related technology, the speaker provided in the present disclosure has a better acoustic effect. 1. A speaker , comprising a frame , and a vibration system and a magnetic circuit system that are accommodated in the frame , wherein the magnetic circuit system is configured to drive the vibration system to vibrate and produce sound , the vibration system comprises a diaphragm for vibrating and producing sound and a voice coil for driving the diaphragm to vibrate , and the magnetic circuit system comprises a yoke fixedly connected to one end of the frame away from the diaphragm and a magnetic steel assembled on the yoke , wherein the vibration system further comprises an iron core for driving the diaphragm to vibrate , and the voice coil is wound around the iron core.2. The speaker according to claim 1 , wherein after a current is introduced to the voice coil claim 1 , the iron core forms a magnetic pole interacting with the magnetic circuit system to generate a driving force claim 1 , and the magnetic pole interacting with the magnetic circuit system to generate the driving force is located at one end of the iron core away from the diaphragm.3. The speaker according to claim 2 , wherein the voice coil and the iron core are fixedly connected to a lower surface of the diaphragm.4. The ...

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Номер записи: 49
06-02-2020 дата публикации

SPEAKER

Номер: US20200045466A1
Автор: Song Wei, Wu Shuwen, Zhang Fan
Принадлежит:

The present disclosure provides a speaker including a frame having an accommodating space, a vibration system and a magnetic circuit system that are accommodated in the accommodating space. The vibration system includes a first diaphragm configured to vibrate and produce sound, a voice coil located below the first diaphragm and configured to drive the first diaphragm to vibrate and produce sound, a flexible circuit board electrically connected to the voice coil and elastically supporting the voice coil, and a second diaphragm fixed to the flexible circuit board. The flexible circuit board includes a first fixing portion connected to the voice coil, a second fixing portion disposed opposite to and separately from the first fixing portion, and an elastic arm connecting the first fixing portion and the second fixing portion. An orthogonal projection of the elastic arm toward the second diaphragm is partially located within a range of the second diaphragm. 1. A speaker , comprising a frame having an accommodating space , a vibration system and a magnetic circuit system that are accommodated in the accommodating space , wherein the vibration system comprises a first diaphragm configured to vibrate and produce sound , a voice coil located below the first diaphragm and configured to drive the first diaphragm to vibrate and produce sound , a flexible circuit board electrically connected to the voice coil and elastically supporting the voice coil , and a second diaphragm fixed to the flexible circuit board , wherein the flexible circuit board comprises a first fixing portion connected to the voice coil , a second fixing portion disposed opposite to and separately from the first fixing portion and connected to the second diaphragm , and an elastic arm connecting the first fixing portion and the second fixing portion , wherein an orthogonal projection of the elastic arm toward the second diaphragm is partially located within a range of the second diaphragm.2. The speaker ...

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Номер записи: 50
06-02-2020 дата публикации

MANUFACTURING METHOD OF A SPEAKER VIBRATING DIAPHRAGM BY CONTROLLING A RATIO OF FIBER MATERIALS

Номер: US20200045486A1
Автор: OHARA Hiroshi
Принадлежит:

The invention discloses a manufacturing method of a speaker vibrating diaphragm by controlling a ratio of fiber materials, the method comprising the steps of: (A) fabric provision: providing a fabric interwoven by a plurality of warps and a plurality of wefts; (B) impregnation: impregnating the fabric in a resin solution; (C) drying: drying the fabric impregnated with resin solution; (D) formation: pressing the dried resin-impregnating fabric to form a predetermined shape; and (E) cutting: cutting the formed speaker vibrating diaphragm from the fabric. Each of the plurality of warps and each of the plurality of wefts of the fabric has an individual yarn count and material composition. By controlling a combination of the yarn counts of the plurality of warps and the plurality of wefts, a total number of threads and a material composition ratio of the warps and wefts required for the vibrating diaphragm are achieved. 1. A manufacturing method of a speaker vibrating diaphragm by controlling a ratio of fiber materials , the method comprising the steps of:(A) fabric provision: providing a fabric interwoven by a plurality of warps and a plurality of wefts, the warps composed by sequentially and alternatively arranging a plurality of double-stranded first yarns, a plurality of single-stranded second yarns, a plurality of double-stranded third yarns, a plurality of single-stranded fourth yarns and a plurality of double-stranded fifth yarns, the wefts composed by sequentially and alternatively arranging a plurality of double-stranded first yarns, a plurality of single-stranded second yarns, a plurality of double-stranded third yarns, a plurality of single-stranded fourth yarns and a plurality of double-stranded fifth yarns, each of the double-stranded first yarns composed of 50% first fiber and 50% second fiber, each of the single-stranded second yarns composed of 100% first fiber, each of the double-stranded third yarns composed of 50% third fiber and 50% first fiber, each ...

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Номер записи: 51
16-02-2017 дата публикации

Speaker

Номер: US20170048621A1
Автор: Shuwen Wu, Wei Song
Принадлежит: AAC Technologies Pte Ltd

A speaker is disclosed. The speaker includes a magnetic circuit system; a vibration system including a vibrating diaphragm, a voice coil for driving the vibrating diaphragm, and a silicone gel spider elastically supporting the voice coil. The speaker further includes a high temperature resistant support ring attached with the voice coil and the silicone spider.

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Номер записи: 52
25-02-2016 дата публикации

COMPOSITE FOR PRODUCTION OF AN ACOUSTIC MEMBRANE AND ACOUSTIC MEMBRANE

Номер: US20160052246A1
Автор: Egger Michael, Mussig Bernhard, SCHULTZ PHILIP
Принадлежит: TESA SE

The invention relates to a composite for production of an acoustic membrane, wherein the composite comprises an internal carrier layer and at least two adhesive layers on the two surfaces of the carier layer, and wherein the carrier layer is a layer of a polyaryl ether ketone film; and also to a corresponding membrane for acoustic transducers. 1. An assembly for producing an acoustic membrane , the assembly comprising an inner carrier layer and at least two layers of adhesive on the two surfaces of the carrier layer , wherein the carrier layer is a layer of a polyaryletherketone film.2. The assembly of claim 1 , wherein the polyaryletherketone film is a polyetheretherketone film.3. The assembly of claim 1 , wherein at least one of the layers of adhesive is a layer of self-adhesive.4. The assembly of claim 1 , wherein both layers of adhesive are layers of self-adhesive.5. The assembly of claim 1 , wherein acrylate adhesives are the adhesive of at least one layer of adhesive.7. The assembly of claim 1 , wherein a liner is disposed on at least one of the two outer surfaces of the layers of adhesive.8. The assembly of claim 1 , wherein a further polymeric film is disposed on at least one of the two outer surfaces of the layers of adhesive.9. The assembly of claim 8 , wherein the thicknesses of the exterior polymeric films independently of one another are each 1 to 50 μm.10. The assembly of claim 1 , wherein the product construction is symmetrical in terms of the layer thicknesses and/or in terms of the composition of its layers.11. A membrane for electroacoustic transducers obtainable by embossing or thermoforming an assembly of .12. Loudspeakers comprising electroacoustic transducers comprising a membrane of . This application is a 371 of International Patent Application No. PCT/EP2014/056471, filed Mar. 31, 2014, which claims foreign priority benefit under 35 U.S.C. §119 of the German Patent Application No. 10 2013 206 812.3, filed Apr. 16, 2013, the disclosures of ...

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Номер записи: 53
03-03-2022 дата публикации

Vibration apparatus and apparatus including the same

Номер: US20220069194A1
Автор: Joongsup Han, Sungsu HAM, Sungtae Lee, Yongjoon Kim
Принадлежит: LG Display Co Ltd

An apparatus includes a display panel displaying an image and a vibration apparatus disposed at a rear surface of the display panel to vibrate the display panel. The vibration apparatus may include a plurality of vibration generators overlapping one another. Accordingly, a sound may be generated based on a vibration of the display panel, and a sound having an enhanced sound pressure level characteristic may be output in a forward direction of the display panel.

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Номер записи: 54
03-03-2022 дата публикации

Dynamic balance speaker

Номер: US20220070588A1
Автор: I-Ching Lu
Принадлежит: Hung Tse Electric Co Ltd

A dynamic balance speaker includes a diaphragm, a voice coil, a printed circuit board, a base frame, a first tuning paper, a washer, a main magnet, and a U-yoke. The base frame is formed with a plurality of spaced first vents and a mounting groove in the middle between adjacent two of the first vents. The mounting groove is provided with positioning grooves. The printed circuit board is provided with positioning portions. The positioning portions are fixed in the positioning grooves, respectively. The voice coil is provided with a pair of lead wires. The lead wires are symmetrical to the center of the printed circuit board. The dynamic balance speaker provides good sound quality.

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Номер записи: 55
14-02-2019 дата публикации

PANEL VIBRATION TYPE DISPLAY DEVICE FOR GENERATING SOUND

Номер: US20190052963A1
Автор: CHOI YeongRak, KIM Kwangho, Lee Sungtae, PARK KwanHo
Принадлежит: LG DISPLAY CO., LTD.

The present embodiments relates to a display panel configured to display images, a plurality of sound generating actuators in a plurality of sound output areas, the sound generating actuators configured to vibrate the display panel to generate sound, and a partition that is between each of the plurality of sound output areas and surrounds at least one of the plurality of sound output areas. 1. A display device , comprising:a display panel configured to display images by emitting light;a plurality of sound generating actuators in a plurality of sound output areas, the sound generating actuators configured to vibrate the display panel to generate sound; anda partition that is between each of the plurality of sound output areas and surrounds at least one of the plurality of sound output areas,wherein the partition is comprised of four sides that surround each of the sound output areas, and one or more first-sides among the four sides of the partition includes a bent portion that is bent toward the sound generating actuator in the corresponding sound output area.2. The display device according to claim 1 , wherein the plurality of sound generating actuators respectively output different sounds within the display device.3. The display device according to claim 1 , further comprising:a back support portion configured to support the display panel.4. The display device according to claim 3 , wherein the partition is in contact with the display panel and the back support portion to define a space in each of the sound output areas.5. The display device according to claim 1 , wherein the partition separates sound between each of the plurality of sound output areas.6. The display device according to claim 1 , wherein the partition surrounds each of the plurality of sound output areas.7. The display device according to claim 1 , wherein a vertex of the bent portion is directed to a center of the sound generating actuator.8. The display device according to claim 1 , wherein a ...

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Номер записи: 56
14-02-2019 дата публикации

ACOUSTIC TRANSDUCER WITH VIBRATION DAMPING

Номер: US20190052970A1
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, an outer perimeter, a center of mass, and an axis of symmetry;at least one tinsel coupled to the diaphragm on one side of the axis of symmetry; andat least one elongated opening in the diaphragm extending substantially radially along a portion of a length from the central area to the outer perimeter and positioned, at least in part, on the opposite side of the axis of symmetry as the at least one tinsel, such that the center of mass lies on or near the axis of symmetry.2. The acoustic transducer of claim 1 , wherein the at least one elongated opening is covered with a second material having relatively higher damping characteristics than the first material.3. The acoustic transducer of claim 1 , wherein the diaphragm comprises only one elongated opening.4. The acoustic transducer of claim 1 , further comprising a surround claim 1 , having relatively higher damping characteristics than the first material claim 1 , arranged circumferentially about the outer perimeter of the diaphragm claim 1 , wherein the surround comprises at least one projection extending from the outer perimeter toward the central area of the diaphragm claim 1 , wherein the at least one projection is arranged to cover the at least one elongated opening.5. The acoustic transducer of claim 4 , 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 4 , each projection of the plurality of projections covering a respective elongated opening of the plurality of elongated openings.6. The acoustic ...

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Номер записи: 57
14-02-2019 дата публикации

ACOUSTIC TRANSDUCER WITH VIBRATION DAMPING

Номер: US20190052971A1
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, an outer perimeter, a center of mass, and an axis of symmetry; andat least one elongated depression formed in the diaphragm, extending substantially radially along a portion of a length from the central area to the outer perimeter and including a first wall having a first depth, a second wall having a second depth, and a floor extending between the first wall and the second wall.2. The acoustic transducer of claim 1 , wherein the first depth and the second depth are different.3. The acoustic transducer of claim 1 , wherein the at least one elongated depression is covered with a second material having relatively higher damping characteristics than the first material.4. The acoustic transducer of claim 1 , further comprising a surround claim 1 , having relatively higher damping characteristics than the first material claim 1 , arranged circumferentially about the outer perimeter of the diaphragm claim 1 , wherein the surround comprises at least one projection extending from the outer perimeter toward the central area of the diaphragm claim 1 , wherein the at least one projection is arranged to cover the at least one elongated depression.5. The acoustic transducer of claim 4 , wherein the at least one projection comprises a plurality of projections and the at least one elongated depression comprises a plurality of elongated depression claim 4 , each projection of the plurality of projections covering a respective elongated depression of the plurality of elongated depressions.6. The acoustic transducer of wherein the surround is comprised of a foam material.7. The ...

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Номер записи: 58
14-02-2019 дата публикации

COIL EXTENSION ELEMENT

Номер: US20190052972A1
Автор: Heidinger Franz, Klein Erich, Tomas Ernst
Принадлежит:

A dynamic loudspeaker driver comprising a magnet-system; a membrane; the membrane being movably mounted with respect to the magnet-system; at least one voice coil attached to the membrane and operatively coupled with the magnet-system, wherein the voice coil comprises an upper edge facing the membrane and a lower edge being arranged opposite the upper edge of the voice coil; at least one voice coil extension element comprising an upper surface facing the membrane and a lower surface facing the upper edge of the voice coil, wherein the lower surface of the voice coil extension element is attached the upper edge of the voice coil while the upper surface of the voice coil extension element is attached to the membrane. 1. A dynamic loudspeaker driver comprising:a magnet-system;a membrane; the membrane being movably mounted with respect to the magnet-system;at least one voice coil attached to the membrane and operatively coupled with the magnet-system, wherein the voice coil comprises a first edge facing the membrane and a second edge being arranged opposite the first edge of the voice coil; andat least one voice coil extension element comprising a first contact surface facing the first edge of the voice coil and a second contact surface facing the membrane, wherein the first contact surface of the voice coil extension element is attached to the first edge of the voice coil whereas the second contact surface of the voice coil extension element is attached to the membrane.2. The loudspeaker driver of claim 1 , wherein a shortest distance between the first contact surface of the voice coil extension element and the second contact surface of the voice coil extension element is 5-50% of a shortest distance between the first edge of the voice coil and the second edge of the voice coil.3. The loudspeaker driver of claim 1 , wherein the shortest distance between the first contact surface of the voice coil extension element and the second contact surface of the voice coil ...

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Номер записи: 59
14-02-2019 дата публикации

Moving-Coil Speaker

Номер: US20190052973A1
Автор: Chun Lan, Lei Zheng, Shun Ming Yuen
Принадлежит: Innovation Sound Technology Co Ltd

A moving-coil speaker includes: a magnetic path unit (1); an annular frame (3) connected to exterior of the magnetic path unit (1) and used to carry a membrane (2); and a PCB (4) installed on the frame (3) and used to solder thereon a component or provide electrical conduction. An outer perimeter of the frame (3) is 45 mm. A positioning pin (5) is disposed at a front side of the frame (3) and overlapping with a central axle extension line of the PCB (4). Two sets of air vents (6) are provided on the frame on two sides of the positioning pin (5). A tune paper (7) is pasted on the surface of the frame (3) on the two sides of the positioning pin (5). A distance between the positioning pin (5) and the center of a first air vent at the starting place of each set of air vents (6) is equivalent to a distance between a side of the PCB (4) and the center of a second air vent at the last place of each set of air vents (6). The Φ45 mm speaker is a balance between a Φ40 mm speaker and a Φ50 mm speaker, and can meet requirements with respect to structures and appearances for this type of earphones.

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Номер записи: 60
25-02-2021 дата публикации

DIAPHRAGM FOR USE IN AUDIO TRANSDUCER, AUDIO TRANSDUCER AND METHOD OF MANUFACTURING DIAPHRAGM

Номер: US20210058708A1
Автор: BULLIMORE George Albert, HANCOCK Stuart Martin, Jones Gavin, TAYLOR Garry David
Принадлежит:

A diaphragm for use in an audio transducer (e.g., a coaxial loudspeaker) includes a higher frequency transducer and a lower frequency transducer. The diaphragm is a component of the lower frequency transducer and is arranged coaxially with the higher frequency transducer. The diaphragm includes a first surface and an opposing second surface. The first surface has a profile shaped to define a horn for output from the higher frequency transducer and the geometry of the first surface is independent of the geometry of the second surface. 1. A diaphragm for use in an audio transducer which comprises a higher frequency transducer and a lower frequency transducer , the diaphragm being a component of the lower frequency transducer and being arranged coaxially with the higher frequency transducer , the diaphragm comprising:a first surface, the first surface having a profile shaped to define a horn for output from the higher frequency transducer; andan opposing second surface,wherein a geometry of the first surface is independent of a geometry of the second surface.2. The diaphragm according to claim 1 , wherein the first surface has a profile that is substantially convex in shape from an outer edge of the diaphragm to an inner edge of the diaphragm.3. The diaphragm according to claim 1 , wherein the second surface has a profile that is substantially linear in shape from an outer edge of the diaphragm to an inner edge of the diaphragm.4. The diaphragm according to claim 1 , wherein the diaphragm has a non-uniform thickness from an outer edge of the diaphragm to an inner edge of the diaphragm.5. The diaphragm according to claim 1 , wherein the diaphragm is formed of a material having a cellular structure.6. The diaphragm according to claim 5 , wherein the diaphragm is formed of an expanded or foamed material.7. An audio transducer claim 5 , comprising:a higher frequency transducer;a lower frequency transducer; and a first surface, the first surface having a profile shaped to ...

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Номер записи: 61
23-02-2017 дата публикации

A SILICON MICROPHONE WITH HIGH-ASPECT-RATIO CORRUGATED DIAPHRAGM AND A PACKAGE WITH THE SAME

Номер: US20170055081A1
Автор: Wang Zhe, ZOU Quanbo
Принадлежит: GOERTEK INC.

The present invention provides a silicon microphone with a high-aspect-ratio corrugated diaphragm and a microphone package including the same. The microphone comprises the corrugated diaphragm on which at least one ring-shaped corrugation is formed in the vicinity of the edge of the diaphragm which is fixed to the substrate, the corrugated diaphragm is flexible, wherein the ratio of the depth of the corrugation to the thickness of the diaphragm is larger than 5:1, preferably 20:1, and the walls of the corrugation are inclined to the surface of the diaphragm at an angle in the range of 80° to 100°. The microphone with the high-aspect-ratio corrugated diaphragm can achieve a consistent and optimal sensitivity and greatly reduce impact applied thereto in a drop test so that the performances, the reproducibility, the reliability and the yield can be improved. The microphone package of the present invention further provides a simplified processing, an improved sensitivity and an improved SNR. 1. A silicon microphone with a high-aspect-ratio corrugated diaphragm , the silicon microphone comprising:a silicon substrate provided with a back hole therein;the corrugated diaphragm disposed above the back hole of the silicon substrate, the corrugated diaphragm is flexible; anda perforated backplate disposed above the diaphragm with an air gap sandwiched in between,wherein the diaphragm and the backplate are used to form electrode plates of a variable condenser,wherein at least one ring-shaped corrugation is formed in the vicinity of the edge of the diaphragm which is fixed to the substrate, andwherein the ratio of the depth of the corrugation to the thickness of the diaphragm is larger than 5:1, and the walls of the corrugation are inclined to the surface of the diaphragm at an angle in the range of 80° to 100°.2. A silicon microphone with a high-aspect-ratio corrugated diaphragm of claim 1 , wherein the ratio of the depth of the corrugation to the thickness of the diaphragm is ...

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Номер записи: 62
23-02-2017 дата публикации

Speaker

Номер: US20170055082A1
Автор: Shunming Yuen
Принадлежит: Innovation Sound Technology Co Ltd

The utility model relates to a type of speaker which comprises the speaker body and the vibrating membrane for speakers fastened on the speaker body, wherein the latter comprises: the first and the second diaphragm leaf, with the former comprising the circular top and the first edge extended along the periphery of the circular top, while the latter comprising the hollow part and the second edge extended along the periphery of the hollow part, wherein, the said first and the second edge are enclosed to form a hollow cavity. Application of the speaker of the utility model could reinforce the ultra-low bass level of the speaker to obtain ever clearer sound. Further, better flexural behavior and a more stable structure of the vibrating membrane for speakers can be realized

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Номер записи: 63
23-02-2017 дата публикации

Speaker Spider Having Varying Corrugation Geometry

Номер: US20170055083A1
Автор: Danovi Benny
Принадлежит:

Embodiments for a speaker spider of a loudspeaker are provided. The speaker spider may include a central opening and a plurality of concentric corrugations. Dimensions of the speaker spider may substantially homogenize stress on the speaker spiders during operation of the loud speaker. Dimensions of such a speaker spider that substantially homogenizes stress on the speaker spider during operation may involve one or more of (i) corrugations having azimuthally varying depths, (ii) corrugations having azimuthally varying crest and/or trough curvature radii, and (iii) corrugations having angularly varying distances from the central opening of the speaker spider, among other possibilities. 120.-. (canceled)21. A voice coil suspension element comprising:a central opening;a stretchable material, wherein the stretchable material is more stretchable along a first set of angular positions relative to the central opening than along a second set of angular positions relative to the central opening; anda plurality of corrugations, wherein a depth of each corrugation azimuthally varies based on an angular position relative to the central opening such that a maximum depth of each corrugation is at the second set of angular positions relative to the central opening.22. The voice coil suspension element of claim 21 , wherein a minimum depth of each corrugation is at a first set of angular positions relative to the central opening.23. The voice coil suspension element of claim 21 , wherein the depth of each corrugation azimuthally varies between the maximum depth and a minimum depth claim 21 , and wherein the maximum depth is greater than the minimum depth by a factor within a range of 1.1 to 1.5.24. The voice coil suspension element of claim 21 , wherein the depth of each corrugation azimuthally varies linearly between the maximum depth and a minimum depth at a period of n/2 radians about the central opening.25. The voice coil suspension element of claim 21 , wherein the depth of ...

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Номер записи: 64
13-02-2020 дата публикации

SPEAKER

Номер: US20200053478A1
Автор: Liu Xiaodong
Принадлежит:

A speaker includes a holder, and a vibration unit and a magnetic circuit unit that are fixedly connected to the holder. The vibration unit includes a first diaphragm, a voice coil, and an elastic support. The elastic support includes a flexible circuit board and a second diaphragm. The second diaphragm includes a first and a second fixing portion, and a suspension connecting the first to the second fixing portion. The flexible circuit board includes a first and a second connection portion, and an elastic arm connecting the first to the second connection portion. The elastic arm includes a first elastic arm extending from the first connection portion and a second elastic arm extending by reversely bending from the first elastic arm and connected to the second connection portion, and an orthographic projection of a reverse bending joint between the first and the second elastic arm is outside the suspension. 1. A speaker , comprising:a holder;a vibration unit comprising a first diaphragm, a voice coil positioned under the first diaphragm and configured to drive the first diaphragm to vibrate to produce sound, and at least one elastic support positioned under the voice coil and elastically supporting the voice coil; anda magnetic circuit unit;wherein the vibration unit and the magnetic circuit unit are fixedly connected to the holder;each of the at least one elastic support comprises a flexible circuit board and a second diaphragm stacked on the flexible circuit board; the second diaphragm comprises a first fixing portion fixedly connected to the voice coil, a second fixing portion spaced apart from the first fixing portion and fixedly connected to the holder, and a suspension connecting the first fixing portion to the second fixing portion; the flexible circuit board comprises a first connection portion fixedly connected to the voice coil, a second connection portion spaced apart from the first connection portion and fixedly connected to the holder, and at least one ...

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Номер записи: 65
03-03-2016 дата публикации

Integrated CMOS/MEMS Microphone Die Components

Номер: US20160060101A1
Автор: Loeppert Peter V.
Принадлежит:

The claim invention is directed at a MEMS microphone die fabricated using CMOS-based technologies. In particular, the claims are directed at various aspects of a diaphragm for a MEMS microphone die which is fabricated as stacked metallic layers separated by vias using CMOS fabrication technologies. 1. A diaphragm for a CMOS MEMS capacitive microphone die comprising:a first substantially planar metallic layer having a top surface and a bottom surface;a second substantially planar metallic layer being substantially the same size and shape as the first layer, having a top surface and a bottom surface, and being positioned parallel to and substantially aligned vertically with the first layer; anda first plurality of vias between the first and second layers, the vias attached to the top surface of the first layer and the bottom surface of the second layer.2. The diaphragm of claim 1 , where:the first layer being substantially solid from side to side; andthe second layer having a plurality of openings between the top surface and bottom surface.3. The diaphragm of claim 1 , where:a portion along the perimeter of the first layer defines a first edge of the first layer;a portion along the perimeter of the second layer defines a first edge of the second layer;the first edge of the second layer is substantially the same size and shape as the first edge of the first layer; andthe first edge of the second layer is substantially aligned vertically with the first edge of the first layer, except that the first edge of the first layer extends horizontally, with respect to the geometric horizontal center of the first layer, beyond the first edge of the second layer.4. The diaphragm of claim 1 , where:a portion along the perimeter of the first layer defines a second edge of the first layer, the second edge of the first layer being a different portion than the first edge of the first layer;a portion along the perimeter of the second layer defines a second edge of the second layer, the ...

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Номер записи: 66
21-02-2019 дата публикации

DIAPHRAGM SUSPENSION FOR A LOUDSPEAKER

Номер: US20190058953A1
Автор: Ilkorur Onur
Принадлежит:

A loudspeaker including a chassis, a drive unit and a diaphragm. The drive unit has a stationary part secured to the chassis and a translatable part secured to the diaphragm. An outer edge of the diaphragm is suspended from the chassis by an edge suspension. The edge suspension has a plurality of straight portions, each straight portion having a respective first surface and a respective second surface which meet along an edge to provide a spring which permits the diaphragm to be moved relative to the chassis by the drive unit. The edge suspension has at least one corner portion, wherein the/each corner portion joins two of the straight portions together and includes at least one geometrical interruption formed therein. 122.-. (canceled)23. A loudspeaker including a chassis , a drive unit and a diaphragm;wherein the drive unit has a stationary part secured to the chassis and a translatable part secured to the diaphragm;wherein an outer edge of the diaphragm is suspended from the chassis by an edge suspension;wherein the edge suspension has a plurality of straight portions, each straight portion having a respective first surface and a respective second surface which meet along an edge to provide a spring which permits the diaphragm to be moved relative to the chassis by the drive unit;wherein the edge suspension has at least one corner portion, wherein the/each corner portion joins two of the straight portions together and includes at least one geometrical interruption formed therein;wherein the/each geometrical interruption formed in the/each corner portion includes a first corrugation which varies in height along a first path which extends circumferentially around the edge suspension, and a second corrugation formed within the first corrugation which varies in height along a second path which extends across the first path.24. A loudspeaker according to claim 23 , wherein the edge suspension is the only suspension element by which the diaphragm is suspended from the ...

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Номер записи: 67
21-02-2019 дата публикации

AN ACOUSTIC APPARATUS AND ASSOCIATED METHODS

Номер: US20190058955A1
Автор: Kononenko Oleksandr, Voutilainen Martti
Принадлежит: NOKIA TECHNOLOGIES OY

An apparatus comprising a piezoelectric diaphragm positioned between opposing first and second electrodes, the piezoelectric diaphragm comprising a stack of graphene oxide layers between respective electrode-engaging layers of reduced graphene oxide, wherein the apparatus is configured to have one or more of a sound output mode and a sound input mode such that: in the sound output mode, the first and second electrodes are configured to apply a voltage to the reduced graphene oxide layers to generate an electric field across the graphene oxide stack, the generated electric field causing vibration of the piezoelectric diaphragm to produce a sound output wave corresponding to the applied voltage, and in the sound input mode, the reduced graphene oxide layers are configured to collect electrical charge which is induced in the graphene oxide layers by vibration of the piezoelectric diaphragm in response to a sound input wave, the collected electrical charge creating a voltage between the first and second electrodes corresponding to the sound input wave. 114-. (canceled)15. An apparatus comprising a piezoelectric diaphragm positioned between first and second electrodes , the piezoelectric diaphragm comprising a stack of graphene oxide layers between respective electrode-engaging layers of reduced graphene oxide , wherein the apparatus is configured to have a sound output mode , or a sound input mode such that:in a sound output mode, the first and second electrodes are configured to apply a voltage to the reduced graphene oxide layers to generate an electric field across the graphene oxide stack, the generated electric field causing vibration of the piezoelectric diaphragm to produce a sound output wave corresponding to the applied voltage, andin a sound input mode, the reduced graphene oxide layers are configured to collect electrical charge which is induced in the graphene oxide layers by vibration of the piezoelectric diaphragm in response to a sound input wave, the ...

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Номер записи: 68
03-03-2016 дата публикации

Embedded Dielectric As A Barrier In An Acoustic Device And Method Of Manufacture

Номер: US20160066095A1
Автор: Szczech John B., Van Kessel Peter
Принадлежит:

A base assembly for an acoustic transducer includes a first substrate with an acoustic port and a dielectric layer having a substantially uniform initial density. One surface of the dielectric layer contacts the first substrate. An opposite surface of the dielectric layer contacts a second substrate having an acoustic port. The respective acoustic ports of the first and second substrates are aligned with each other. The first substrate, the dielectric layer, and the second substrate are laminated together. A substantial portion of the dielectric layer laminated to the first and second substrates has a higher final density due to compaction than does a portion of the dielectric layer disposed in the respective acoustic ports of the first and second substrates. 1. A base assembly for an acoustic transducer , the base comprising:a first substrate with an acoustic port;a dielectric layer having a substantially uniform initial density, wherein one surface of the dielectric layer contacts the first substrate; anda second substrate with an acoustic port, wherein an opposite surface of the dielectric layer contacts the second substrate;wherein the respective acoustic ports of the first and second substrates are aligned with each other, andthe first substrate, the dielectric layer, and the second substrate are laminated together, wherein a substantial portion of the dielectric layer laminated to the first and second substrates has a higher final density due to compaction than does a portion of the dielectric layer disposed in the respective acoustic ports of the first and second substrates.2. The base assembly of claim 1 , wherein the dielectric layer is an expanded polymeric membrane.3. The base assembly of claim 2 , wherein the density of the expanded polymeric membrane has an air volume of at least 70 percent.4. The base assembly of claim 2 , wherein the expanded polymeric membrane is a polytetrafluoroethylene (ePTFE) membrane.5. The base assembly of claim 2 , wherein the ...

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Номер записи: 69
20-02-2020 дата публикации

FIBER LASER MICROPHONES WITH GRAPHENE DIAPHRAGMS

Номер: US20200059738A1
Автор: Chien Hual-Te, Liao Shaolin
Принадлежит: UCHICAGO ARGONNE, LLC

An acoustic sensor comprises a sensing head comprising an optical fiber having a tip. A graphene diaphragm is disposed on the tip and is configured to vibrate in response to an acoustic signal. A fiber laser is optically coupled to the sensing head. The fiber laser comprises a first set of fiber Bragg gratings and a second set of fiber Bragg gratings. A gap is present between the first set and the second set of fiber Bragg gratings. The fiber laser is configured to generate a sensing optical signal having a first intensity in response to an excitation optical signal, the sensing optical signal impinging on the graphene diaphragm such that a feedback optical signal is reflected from the graphene diaphragm towards the fiber laser and has and has a second intensity modulated by the vibration of the graphene diaphragm that corresponds to the acoustic signal. 1. An acoustic sensor , comprising: an optical fiber defining an optical path and having a tip, the tip extending beyond an end face of the optical path such that the optical path is spaced apart from the end face of the tip by a distance, and', 'a graphene diaphragm disposed on the tip such that a portion of the graphene diaphragm is spaced apart from the end face of the optical path by the distance, the graphene diaphragm configured to vibrate in response to an acoustic signal; and, 'a sensing head, comprisinga fiber laser optically coupled to the sensing head, the fiber laser comprising a first set of fiber Bragg gratings and a second set of fiber Bragg gratings such that a gap is present between the first set and the second set of fiber Bragg gratings, the fiber laser configured to generate a sensing optical signal having a first intensity in response to an excitation optical signal, the sensing optical signal impinging on the graphene diaphragm such that a feedback optical signal is reflected from the graphene diaphragm towards the fiber laser, the feedback optical signal having a second intensity due to ...

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Номер записи: 70
01-03-2018 дата публикации

Loudspeaker structure

Номер: US20180063643A1
Автор: Guo Changlin, Yao Richeng
Принадлежит: Huizhou Ultrasonic Audio Co Ltd

A loudspeaker includes a magnet, a T-yoke, a frame, a top plate, a voice coil, a damper, a dust cap, a cone paper, and a gasket. The cone paper being provided with a surround, the gasket being located below the outer edge of the frame, the magnet being located above said T-yoke. A magnetic gap is formed between the top plate and the T-yoke. The voice coil being arranged in the magnetic gap, the voice coil including VC wire part and VC tube part. The top plate being provided with a riveted groove on the outer side, the top plate being riveting mounted in the frame via the riveted groove.

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Номер записи: 71
01-03-2018 дата публикации

MICRO-SOUND DETECTION ANALYSIS DEVICE AND ARRAY AUDIO SIGNAL PROCESSING METHOD BASED ON SAME

Номер: US20180063648A1
Автор: CAO Guojian, HOU Chengyu, Yang Lin, ZHANG Jianwei
Принадлежит:

The equipment of micro-acoustic detection analysis and the processing method of audio signal array based on this equipment, which is the field of micro-acoustic detection, could give a solution that having an excessive sound intensity lower limit using capacitor micro-acoustic detector, and using current way of audio signal processing could not identification and positioning for sound source from micro-acoustic detector at same time. This equipment detects sound pressure based on micro-acoustic detection cell of graphene membrane. The method includes separate the noise from audio signal, compare the extract audio feature and sound source position information with multi sound source signal stored in memory, identifying the target sound source, and the procedure of positioning the sound source according the sound source position information. This invention could be applied to the micro-acoustic detection and then identification and positioning using the detected sound source. 1. A micro-acoustic detection analysis equipment for identifying a target sound source , comprising a micro-acoustic sensor array , a signal processing unit , a signal storage unit , and a signal analysis unit;wherein the micro-acoustic sensor array comprises multiple micro-acoustic sensors; the micro-acoustic sensor converts sound signals of said target sound source into electric signals, and transmits the electric signals to the signal processing unit;wherein the micro-acoustic sensor comprise a micro-acoustic perception unit comprising a graphene membrane for detecting sound pressure;wherein the signal processing unit is configured to process the electric signals from the micro-acoustic sensor, and transmit the electric signals to the signal analysis unit, the electric signals comprising audio feature and position information of the target sound source;wherein the signal storage unit pre-stores audio features of multiple reference sound sources;wherein the signal analysis unit is configured to ...

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Номер записи: 72
28-02-2019 дата публикации

FRAME, SPEAKER UNIT USING THE SAME, AND HEADPHONE/EARPHONE

Номер: US20190069073A1
Автор: FUJITANI Takeshi
Принадлежит:

There are provided a headphone and an electrodynamic speaker unit exhibiting proper vibration characteristics and excellent reproduced sound quality. First, second, and third coupling portions of a frame of the headphone defining adjacent two opening holes extend from a magnetic circuit fixing portion to a diaphragm fixing portion such that each of the first, second, and third coupling portions is inclined with respect to a radial line passing through a center point, and are formed such that a first separation distance between the first coupling portion and the second coupling portion and a second separation distance between the second coupling portion and the third coupling portion in a circumferential direction are different from each other and that the opening hole areas of at least two opening holes are unequal to each other. 1. A frame forming an electrodynamic speaker unit used for a headphone or an earphone , comprising:a substantially circular ring-shaped diaphragm fixing portion for fixing an outer peripheral portion of a diaphragm;a substantially circular ring-shaped magnetic circuit fixing portion for fixing a magnetic circuit;first, second, and third coupling portions each coupling the diaphragm fixing portion and the magnetic circuit fixing portion to define multiple opening holes; anda terminal fixing portion for fixing a terminal, the terminal fixing portion being provided to protrude to an outer peripheral side of the diaphragm fixing portion,wherein the first, second, and third coupling portions extend from the magnetic circuit fixing portion to the diaphragm fixing portion such that each of the first, second, and third coupling portions is inclined with respect to a radial line passing through a center point, and are formed such that a first separation distance between the first coupling portion and the second coupling portion and a second separation distance between the second coupling portion and the third coupling portion in a circumferential ...

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Номер записи: 73
28-02-2019 дата публикации

Speaker diaphragm

Номер: US20190069092A1
Автор: Chun Lan, Lei Zheng, Shun Ming Yuen
Принадлежит: Innovation Sound Technology Co Ltd

The invention relates to a speaker diaphragm. The speaker diaphragm is composed of a dome portion located in the center and a circle of outer arc portion connected to the circumferential outer side of the dome portion. An outer diameter of the diaphragm is 38.9 mm to 39.95 mm. The dome portion has a dome height of 3.0 mm to 3.4 mm. The outer arc portion has an arc top height of 1.6 mm to 1.8 mm. An effective height between the dome portion and the outer arc portion is 0.8 mm to 1.0 mm. According to the speaker diaphragm of the invention, by increasing the effective height of the diaphragm and the dome height and by changing an outer arc shape and a pattern shape, the overall strength of the diaphragm is improved, the frequency peaks and valleys in a frequency response curve are reduced, and the high frequency is raised. In addition, a layer of PU damping material is also compounded between two different materials (PAR layer+PEEK layer) to increase the damping of the diaphragm.

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Номер записи: 74
28-02-2019 дата публикации

Audio Speaker Surround Geometry For Improved Pistonic Motion

Номер: US20190069093A1
Автор: Alexander V. Salvatti, Christopher Wilk, Oliver Leonhardt, Pablo Seoane Vieites, Scott P. Porter, Suzanne Hardy
Принадлежит: Apple Inc

An audio speaker having a suspension system including a surround to support a diaphragm within a frame and to reduce non-pistonic motion of the diaphragm at several resonant frequencies is disclosed. More particularly, embodiments of the surround include a film that undulates in a peripheral direction around the diaphragm and includes several undulations above and below a radial gap between the diaphragm and the frame. Other embodiments are also described and claimed.

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Номер записи: 75
09-03-2017 дата публикации

ELECTRONIC DEVICE INCLUDING ACOUSTICALLY ISOLATED PASSIVE RADIATOR AND RELATED METHODS

Номер: US20170070809A1
Автор: Lobel Inna, Mihelich Ryan J.
Принадлежит:

An electronic device may include a housing having an audio output port therein, a display carried by the housing, and a baffle enclosure carried within the housing. The electronic device may also include an audio output transducer carried by the baffle enclosure and acoustically coupled to the audio output port, and a passive radiator carried by the baffle enclosure, acoustically coupled between the audio output transducer and the display, and acoustically isolated from the audio output port. 1. An electronic device comprising:a housing having an audio output port therein;a display carried by the housing;a baffle enclosure carried within the housing;an audio output transducer carried by the baffle enclosure and acoustically coupled to the audio output port; anda passive radiator carried by the baffle enclosure, acoustically coupled between the audio output transducer and the display, and acoustically isolated from the audio output port.2. The electronic device of wherein the baffle enclosure has a radiator opening therein; and wherein the passive radiator comprises a radiator mass claim 1 , and radiator suspension coupling the radiator mass within the radiator opening.3. The electronic device of wherein the audio output transducer is directed to an underside of the display.4. The electronic device of wherein the passive radiator is directed to an underside of the display.5. The electronic device of further comprising a partition carried within the housing and outside the baffle enclosure between the audio output transducer and the passive radiator.6. The electronic device of wherein the audio output transducer is laterally adjacent the passive radiator.7. The electronic device of wherein the display comprises a touch-screen display.8. An electronic device comprising:a housing having an audio output port therein;wireless communications circuitry carried by the housing;a display carried by the housing;a baffle enclosure carried within the housing;an audio output ...

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Номер записи: 76
27-02-2020 дата публикации

Diaphragm structure and method of manufacturing the same

Номер: US20200068328A1
Автор: Bo-Zhang LAI, Chia-Chi Yu, Chun-Tao CHEN, Jinn P. Chu
Принадлежит: National Taiwan University of Science and Technology NTUST

A diaphragm structure is used for an audio signal output device. The diaphragm structure includes a film substrate, a polymer fiber structure and a thin film metallic glass. The film substrate includes a first surface and a second surface opposite to the first surface. The polymer fiber structure is combined with the first surface of the film substrate. The thin film metallic glass is formed on at least a part of the second surface of the film substrate.

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Номер записи: 77
27-02-2020 дата публикации

MANUFACTURING METHOD FOR DIAMOND-LIKE CARBON VIBRATING DIAPHRAGM AND LOUDSPEAKER

Номер: US20200068329A1
Автор: CHIU Shihchia, Yang Lei, YANG Tsangchiang
Принадлежит:

The present invention relates to a manufacturing method for a diamond-like carbon diaphragm, comprising the steps of: placing a base material in the air; a step of depositing a composite diamond-like carbon diaphragm comprises: importing a carbon-containing gas from one end of an atmospheric pressure plasma chemical vapor deposition device, importing a main gas from the other end of the atmospheric pressure plasma chemical vapor deposition device; bringing the ionized carbon-containing gas out of the atmospheric pressure plasma chemical vapor deposition device by the main gas and depositing the same on the surface of the base material to form a composite diamond-like carbon diaphragm; a step of forming a diamond-like carbon vibrating diaphragm comprises: cutting from the composite diamond-like carbon diaphragm a diamond-like carbon vibrating diaphragm having the required diameter, forming a diamond-like carbon vibrating diaphragm having the required shape by means of a compressing process. 1. A method of manufacturing a diamond-like carbon (DLC) vibrating diaphragm , comprising the steps of:placing a substrate in air, the substrate being a polymer material;a step of depositing a DLC composite diaphragm comprising: introducing carbon-containing gas from one end of an atmospheric pressure plasma chemical vapor deposition device at a temperature of less than 90° C., providing a voltage of greater than 5 KV and less than 10 KV to ionize the carbon-containing gas, introducing a main gas from the other end of the atmospheric pressure plasma chemical vapor deposition device, taking the ionized carbon-containing gas out of the atmospheric pressure plasma chemical vapor deposition device by the main gas, and depositing the ionized carbon-containing gas on a surface of the substrate to form the DLC composite diaphragm; anda step of forming the DLC vibrating diaphragm comprising: cutting the DLC composite diaphragm into the DLC vibrating diaphragm having a required diameter ...

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Номер записи: 78
12-06-2014 дата публикации

Coated speaker dome and coated diamond products

Номер: US20140158456A1
Автор: John Robert Brandon, Neil Perkins, Paul Nicholas Inglis
Принадлежит: Element Six Ltd

The invention relates to a speaker dome comprising: a polycrystalline diamond dome body formed of a material of high stiffness with a Young's modulus greater than 50 GPa and having respective inner and outer surfaces; and a coating on at least one side of the dome body, wherein the coating comprises an optically refractive metal compound layer which is semi-transparent and which forms one or more colours via interference of reflected light from front and rear surfaces of the layer. The invention also relates to a diamond component comprising: a diamond body; and a coating on at least one side of the diamond body; wherein the coating comprises at-least two layers including a first layer bonded to the at least one side of the diamond body and a second layer disposed over the first layer, the second layer being an optically refractive metal compound coating which is semi-transparent and which forms one or more colours via interference of reflected light from front and rear surfaces of the second layer.

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Номер записи: 79
16-03-2017 дата публикации

Hinge systems for audio transducers and audio transducers or devices incorporating the same

Номер: US20170078798A1
Автор: David John Palmer, Michael Ian Palmer
Принадлежит: Grail Acoustics Ltd

The invention relates to audio transducers, such as loudspeaker, microphones and the like, and includes improvements in or relating to hinge systems for rotational action audio transducers. The hinge systems of the invention being configured to operatively support a diaphragm in use, and comprising a hinge assembly having one or more hinge joints, wherein each hinge joint comprises a hinge element and a contact member. The contact member comprises a contact surface and the configuration is such that during operation each hinge joint is configured to allow the hinge element to move relative to the associated contact member, while maintaining a substantially consistent physical contact with the contact surface. The hinge assembly biases the hinge element towards the contact surface. Preferably the hinge assembly is configured to apply a biasing force to the hinge element of each joint toward the associated contact surface, compliantly. Various applications and implementations are described and envisaged for the audio transducer embodiments including, for example, personal audio devices such as headphones, earphones and the like.

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Номер записи: 80
16-03-2017 дата публикации

FABRICATING AN INTEGRATED LOUDSPEAKER PISTON AND SUSPENSION

Номер: US20170078800A1
Автор: Guthy Csaba, Hayner Mark A., Nielsen Ole Mattis
Принадлежит: Bose Corporation

A diaphragm and suspension for an electroacoustic transducer are formed by depositing a layer of compliant material on a first surface of a solid substrate and removing material from a second surface of the solid substrate. The removal leaves a block of substrate material suspended within an inner perimeter of an outer support ring of the substrate material by the compliant material, the block providing the diaphragm. 1. A method of forming an electroacoustic transducer having a diaphragm and suspension , the method comprising:depositing a layer of compliant material on a first surface of a solid substrate; andremoving material from a second surface of the solid substrate, the removal leaving a block of substrate material suspended within an inner perimeter of an outer support ring of the substrate material by the compliant material, the block providing the diaphragm.2. The method of claim 1 , wherein the compliant material has an elastic strain limit of at least 50 percent.3. The method of claim 1 , wherein the compliant material has an elastic strain limit of at least 150 percent.4. The method of claim 1 , further comprising curing the compliant material.5. The method of claim 1 , wherein the compliant material comprises liquid silicone rubber (LSR).6. The method of claim 1 , wherein the step of removing material from the substrate comprises removing material from a portion of the substrate in some areas to form the block claim 1 , and removing all material of the substrate in other areas to form a gap between the inner perimeter of the outer support ring and the suspended block.7. The method of claim 6 , wherein the step of removing material from the substrate comprises deep reactive ion etching (DRIE) claim 6 , material being removed from a portion of the substrate by a single DRIE etch claim 6 , and material being removed from the entire substrate by multiple DRIE etches.8. The method of claim 6 , wherein the substrate comprises a silicon-on-insulator (SOI) ...

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Номер записи: 81
05-03-2020 дата публикации

Speaker Diaphragm Structure

Номер: US20200077195A1
Автор: CHEN CHIEN-SHENG, LEE WEI-JEN, LI Hao-Zhi, WANG Ching-Bore
Принадлежит:

A speaker diaphragm structure is installed inside a sound generator device which comprises a frame, a speaker diaphragm structure installed within the frame and a suspension edge whose inner perimeter is connected to the speaker diaphragm structure and whose outer perimeter is connected to the frame; herein the speaker diaphragm structure includes a diaphragm body and a composite material layer, in which the composite material layer is used for bonding onto the surface of the diaphragm body or attaching within the diaphragm body; moreover, the composite material layer is composed of one or more types of tetrapyrrole compounds as well as one or more types of metal ions; additionally, the composite material layer has a thickness smaller than the thickness of the diaphragm body, and is mainly applied to provide the performance effect of sound quality modifications. 1. A speaker diaphragm structure installed within a sound generator device which comprises a frame , a speaker diaphragm structure installed within the frame , and a suspension edge whose inner perimeter is connected to the speaker diaphragm structure and whose outer perimeter is connected to the frame; herein the speaker diaphragm structure includes:a diaphragm body; anda composite material layer, in which the composite material layer is used for bonding onto the surface of the diaphragm body or attaching within the diaphragm body, and the composite material layer is composed of one or more types of tetrapyrrole compounds as well as one or more types of metal ions; additionally, the composite material layer has a thickness smaller than the thickness of the diaphragm body.2. The speaker diaphragm structure according to claim 1 , wherein the molar mixture ratio of the tetrapyrrole compound to the metal ions ranges from 0.2 to 20.3. The speaker diaphragm structure according to claim 1 , wherein the diaphragm body is a polymer film claim 1 , a polymer cloth claim 1 , a woven cloth or a cellulose composite ...

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Номер записи: 82
05-03-2020 дата публикации

DIAPHRAGM OR DUST CAP AND SPEAKER UNIT

Номер: US20200077197A1
Автор: HISAMOTO Sadatoshi, INOUE Takeru, KUMO Hiroyasu, Yoshimura Hajime
Принадлежит:

There is provided a diaphragm or a dust cap configured to emit a sound wave and an electrodynamic speaker unit including the diaphragm or the dust cap. The speaker unit is configured so that a great peak dip of sound pressure frequency characteristics due to influence of a divided vibration mode can be prevented and excellent reproduced sound quality can be provided. In the diaphragm or the dust cap, a recessed-raised portion imitating a wing of an insect is formed at least on one surface of a diaphragm portion configured to emit a sound wave. Preferably, the recessed-raised portion is formed based on data obtained by measurement of an actual shape of a wing vein of the insect or data of a Voronoi diagram imitating the wing vein of the insect. 1. A diaphragm or a dust cap forming an electrodynamic speaker unit , whereina recessed-raised portion imitating a wing of an insect is formed at least on one surface of a diaphragm portion configured to emit a sound wave.2. The diaphragm or the dust cap according to claim 1 , whereinthe recessed-raised portion is formed based on data obtained by measurement of an actual shape of a wing vein of the insect or data of a Voronoi diagram imitating the wing vein of the insect.3. The diaphragm or the dust cap according to claim 1 , whereinthe recessed-raised portion is formed such that multiple identical wing vein shapes having a predetermined area are repeatedly arranged at the diaphragm portion.4. The diaphragm or the dust cap according to claim 1 , wherein{'b': 2', '1, 'a thickness t of a raised portion of the recessed-raised portion of the diaphragm portion is formed substantially equal to or greater than a thickness t of a recessed portion of the recessed-raised portion.'}5. The diaphragm or the dust cap according to claim 4 , whereina hollow space imitating the wing vein is formed inside the raised portion of the recessed-raised portion of the diaphragm portion.6. A speaker unit comprising at least:{'claim-ref': {'@idref': ' ...

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Номер записи: 83
05-03-2020 дата публикации

SPEAKER DIAPHRAGM, SPEAKER UNIT, SPEAKER, AND METHOD FOR MANUFACTURING SPEAKER

Номер: US20200077217A1
Автор: Koike Hisashi, OTA Tsukasa, URANO Nobutaka, YOSHIOKA Satomi
Принадлежит:

A speaker diaphragm according to the present disclosure includes a cone formed of a first material including first fibers derived from a plant and a first resin for binding the first fibers together, and an edge portion which is positioned at an outer peripheral portion of the cone and formed of a second material including a second resin, in which the cone and the edge portion are integrally formed. In addition, at least one of the content and the composition of the first resin and the second resin is different. 1. A speaker diaphragm comprising:a cone formed of a first material including first fibers derived from a plant and a first resin for binding the first fibers together; andan edge portion positioned on an outer peripheral portion of the cone and formed of a second material including a second resin, whereinthe cone and the edge portion are integrally formed.2. The speaker diaphragm according to claim 1 , whereinthe edge portion has a lower rigidity than the cone.3. The speaker diaphragm according to claim 1 , whereinthe second material includes second fibers, andthe first fibers and the second fibers are in a different condition.4. The speaker diaphragm according to claim 3 , whereinthe condition is at least one of content, composition, an average fiber length, and an average fiber width.5. The speaker diaphragm according to claim 1 , whereinthe first resin and the second resin are in a different condition.6. The speaker diaphragm according to claim 5 , whereinthe condition is at least one of content and composition.7. The speaker diaphragm according to claim 1 , whereina bulk density of the second material is lower than a bulk density of the first material.8. The speaker diaphragm according to claim 1 , whereinat least one of the cone and the edge portion is formed of a laminate in which a plurality of laminated layers are laminated, anda number of laminated layers is different between the cone and the edge portion.9. A speaker diaphragm comprising: a main ...

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Номер записи: 84
31-03-2022 дата публикации

Soundboard panel assembly for vehicle surfaces

Номер: US20220097620A1
Автор: Robert Katz
Принадлежит: Individual

A soundboard panel assembly for a vehicle, including a mounting structure, a soundboard panel connected to the mounting structure, and an inertial-type acoustic transducer connected to the soundboard panel.

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Номер записи: 85
18-03-2021 дата публикации

METHOD FOR MANUFACTURING A TRANSDUCER UNIT

Номер: US20210084423A1
Автор: Bottoni Ferruccio, Renaud-Bezot Nick, Rusconi Clerici Beltrami Andrea
Принадлежит:

A method for manufacturing a transducer unit for converting electrical signals into deflections and/or deflections into electrical signals, in which a transducer element is arranged on a support element, which is coupled to a diaphragm unit, which is deflectable along a stroke axis, includes the step of casting a fluid and curable diaphragm material onto a reinforcing element of the diaphragm unit to form a flexible diaphragm element. The diaphragm unit is coupled or coupleable to the transducer element. The diaphragm element, together with the reinforcing element, at least partially form the diaphragm unit. A transducer unit includes a diaphragm unit having a reinforcing element and a flexible diaphragm element formed of a fluid and curable diaphragm material that has been cast onto the reinforcing element. 1. A method for manufacturing a transducer unit for converting electrical signals into deflections and/or converting deflections into electrical signals , the transducer unit including a transducer element arranged on a support element and coupled to a diaphragm unit , which is deflectable along a stroke axis , the method comprising the steps of:casting a fluid and curable diaphragm material onto a reinforcing element of the diaphragm unit to form a flexible diaphragm element, wherein the reinforcing element is coupled or coupleable to the transducer element, and so that the diaphragm unit is at least partially formed by the flexible diaphragm element and the reinforcing element.2. The method as claimed in claim 1 , wherein the fluid and curable diaphragm material is cast onto the reinforcing element and/or the reinforcing element is arranged in such a way that the flexible diaphragm element and/or the diaphragm unit are/is formed separately from the transducer element.3. The method as claimed in claim 1 , wherein the transducer element is coupled to the reinforcing element before the step of casting the fluid and curable diaphragm material onto the reinforcing ...

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Номер записи: 86
14-03-2019 дата публикации

MICROPHONE DEVICE

Номер: US20190082261A1
Автор: Yoo Ilseon
Принадлежит:

A microphone apparatus is disclosed. A microphone apparatus according to an exemplary embodiment includes a vibration membrane disposed inside a case and formed on an upper surface of a main substrate; an acoustic component including an absorbing unit cut over a predetermined section toward the outside of a fixed membrane and having a predetermined pattern; a microphone module including a semiconductor chip electrically connected to the acoustic component inside the case; and a printed circuit board on which the microphone module is mounted. 1. A microphone apparatus comprising:a microphone module disposed inside a case and having an acoustic component and a semiconductor chip electrically connected to the acoustic component inside the case, wherein the acoustic component has an absorbing unit; anda printed circuit board on which the microphone module is mounted,wherein the absorbing unit is cut over a predetermined section toward the outside of a fixed membrane and a vibration membrane, has a predetermined pattern, and comprises a plurality of slits along a circumference of the vibration membrane and the fixed membrane, andwherein the fixed membrane and the vibration membrane are provided in an upper portion of a main substrate.2. The microphone apparatus of claim 1 , wherein the case comprises:a lower case in which the acoustic component and the semiconductor chip are electrically connected with each other; andan upper case providing a receiving space accommodating the acoustic component and the semiconductor chip in an upper portion of the lower case.3. The microphone apparatus of claim 2 , wherein the acoustic component comprises:the main substrate having a bonding step cut over a predetermined section along an edge of a lower surface while an acoustic hole is provided corresponding to a penetration hole on the lower case;the vibration membrane provided in an upper portion of the main substrate corresponding to the acoustic hole; andthe fixed membrane separately ...

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Номер записи: 87
14-03-2019 дата публикации

Continuous surround

Номер: US20190082262A1
Автор: Alexander V. Salvatti, Bonnie W. Tom, Christopher Wilk, Oliver Leonhardt, Onur I. Ilkorur
Принадлежит: Apple Inc

A transducer assembly including a frame, a diaphragm positioned within the frame, a surround connecting the diaphragm to the frame, the surround having a corner section and a plurality of corrugations formed within the corner section, wherein each corrugation of the plurality of corrugations comprises a length dimension perpendicular to a line of maximum stress intersecting a radial axis of the corner section, a voice coil extending from one side of the diaphragm and a magnet assembly having a magnetic gap aligned with the voice coil.

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Номер записи: 88
23-03-2017 дата публикации

PASSIVE RADIATOR STRUCTURE

Номер: US20170085980A1
Автор: Chou Yeh-Feng
Принадлежит:

A passive radiator structure includes an integrally formed diaphragm structure and a surround suspension. The diaphragm structure includes a diaphragm, a frame, and a web-like spider having a plurality of suspension arms integrally extended to between the diaphragm and the frame. The surround suspension has a radially inner gluing edge adhered to a radially inner location of the diaphragm structure around the diaphragm, and a radially outer gluing edge adhered to a radially outer location of the diaphragm structure around the frame. The surround suspension and the web-like spider of the diaphragm structure form two suspension elements for stably supporting the diaphragm, enabling minimized irregular shaking and reduced weight of the diaphragm, as well as reduced sound distortion, increased compliance and upgraded efficiency of the passive radiator structure. 1. A passive radiator structure , comprising:a diaphragm;a frame externally located around the diaphragm;a web-like spider having a plurality of suspension arms extending between the diaphragm and the frame and circumferentially equally spaced from one another by a predetermined distance and connecting the frame to the diaphragm, such that a single, integral diaphragm structure is integrally formed of the web-like spider, the diaphragm and the frame; anda surround suspension glued over the single, integral diaphragm structure; whereby the diaphragm is supported by both of the web-like spider and the surround suspension.2. The passive radiator structure as claimed in claim 1 , wherein the diaphragm is flat and round in shape.3. The passive radiator structure as claimed in claim 1 , wherein the surround suspension has a convex semicircular cross section.4. The passive radiator structure as claimed in claim 1 , wherein the surround suspension has a radially inner peripheral edge and a radially outer peripheral edge that respectively form an inner gluing edge and an outer gluing edge of the surround suspension; the ...

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Номер записи: 89
25-03-2021 дата публикации

Vibration plate having reinforced structural element and speaker using the same

Номер: US20210092524A1
Автор: CHENG Chen, Kheng-Wee Lee
Принадлежит: Eastech (huiyang) Co Ltd

A vibration plate having a reinforced structural element is provided. The vibration plate includes a vibration plate main body. The vibration main body has a first surface and a second surface opposite to each other. The reinforced structural element is located between the first surface and the second surface. A material of the vibration plate main body is different from a material of the reinforced structural element.

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Номер записи: 90
05-05-2022 дата публикации

PASSIVE DIAPHRAGM ASSEMBLY

Номер: US20220141574A1
Автор: Chen Chia Chien, Huang Po-Cheng, LIN Ching Feng, Wang Wen Hong, Yang Shih-Hsien
Принадлежит: Jabil Circuit (Singapore) Pte. Ltd.

A passive diaphragm assembly includes a counterweight member, a first diaphragm and a second diaphragm. The first diaphragm and the second diaphragm are spaced apart from each other, are connected respectively to opposite ends of the counterweight member, and cooperate with the counterweight member to define an air space thereamong.

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Номер записи: 91
29-03-2018 дата публикации

TRANSDUCER HAVING A CONDUCTIVE SUSPENSION MEMBER

Номер: US20180091902A1
Автор: Salvatti Alexander V.
Принадлежит:

A speaker including a frame, and a magnet assembly coupled to the frame. The magnet assembly forms an air gap through which a magnetic flux is directed. The speaker further including a voice coil suspended in the air gap, a diaphragm coupled to the voice coil and a compliant suspension member for suspending the voice coil within the air gap. The suspension member includes an electrically conductive biphasic member for providing an electrical connection between the voice coil and a circuit coupled to the frame. 1. A micro speaker comprising:a frame having a terminal coupled thereto;a magnet assembly coupled to the frame, the magnet assembly forming an air gap through which a magnetic flux is directed;a voice coil suspended in the air gap;a diaphragm coupled to the voice coil; anda compliant suspension member for suspending the voice coil and the diaphragm from the frame, the compliant suspension member having a surface to which the voice coil and an electrically conductive biphasic member are attached, and the electrically conductive biphasic member electrically connects the voice coil to the terminal.2. The micro speaker of wherein the electrically conductive biphasic member comprises a solid component formed on the suspension member and a liquid component formed on the solid component.3. The micro speaker of wherein the solid component comprises a gold-gallium alloy.4. The micro speaker of wherein the liquid component comprises liquid gallium deposits.5. The micro speaker of wherein the suspension member is a solid membrane claim 1 , and the electrically conductive biphasic member comprises a film of biphasic material claim 1 , and the film of biphasic material is formed on the surface of the suspension member.6. The micro speaker of wherein the electrically conductive biphasic member comprises a layer of gold-gallium alloy formed on the suspension member and a plurality of liquid gallium protrusions formed on the layer of gold-gallium alloy.7. The micro speaker of ...

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Номер записи: 92
29-03-2018 дата публикации

Hinge systems for audio transducers and audio transducers or devices incorporating the same

Номер: US20180091903A1
Автор: David John Palmer, Michael Ian Palmer
Принадлежит: Wing Acoustics Ltd

The invention relates to audio transducers, such as loudspeaker, microphones and the like, and includes improvements in or relating to hinge systems for rotational action audio transducers. The hinge systems of the invention being configured to operatively support a diaphragm in use, and comprising a hinge assembly having one or more hinge joints, wherein each hinge joint comprises a hinge element and a contact member. The contact member comprises a contact surface and the configuration is such that during operation each hinge joint is configured to allow the hinge element to move relative to the associated contact member, while maintaining a substantially consistent physical contact with the contact surface. The hinge assembly biases the hinge element towards the contact surface. Preferably the hinge assembly is configured to apply a biasing force to the hinge element of each joint toward the associated contact surface, compliantly. Various applications and implementations are described and envisaged for the audio transducer embodiments including, for example, personal audio devices such as headphones, earphones and the like.

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Номер записи: 93
29-03-2018 дата публикации

Dynamic loudspeaker driver, loudspeaker and mobile device comprising a loudspeaker

Номер: US20180091904A1
Автор: Friedrich Reining, Gustav Otto, Michael Wohlgenannt
Принадлежит: Sound Solutions International Co Ltd

The invention relates to a dynamic loudspeaker driver which comprises a magnet-system, a membrane and a voice coil. The membrane comprises a semi-rigid diaphragm and a flexible annulus surrounding the diaphragm. The diaphragm is movably mounted with respect to the magnet-system by means of the annulus and comprises a substrate which comprises a first surface and a second surface being opposite to the first surface, a first layer attached to and continuously covering the first surface, and a second layer attached to and covering the second surface. The second layer comprises a plurality of holes having a predefined pattern. The voice coil is attached to the diaphragm and is operatively coupled with the magnet-system.

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Номер записи: 94
30-03-2017 дата публикации

STIFFENING PLATE FOR ACOUSTIC MEMBRANE AND METHOD OF MANUFACTURING SAME

Номер: US20170094414A1
Автор: Ergül Hüdaverdi, Lembacher Christian, Polat Murat, Timmerer Armin
Принадлежит:

A method of thinning a multilayer laminate material used for a membrane stiffening plate is provided to obtain a membrane stiffening plate having a thickness less than currently known in the art. The method provides for a significant reduction in the thickness of a membrane stiffening plate and provides for a mechanism to tune the cut-off frequency of a loudspeaker on which the membrane stiffening plate is used. 1. A stiffening plate for an electroacoustic transducer , the stiffening plate comprised of a multilayer laminate comprising:a middle layer substantially comprised of a polymer foam;a first outer layer comprised of a metal and disposed on a first side of the middle layer;a second outer layer comprised of a metal and disposed on a second side of the middle layer, the second side being opposite the first side; andfirst and second bonding layers disposed between the respective first and second outer layers and the middle layer, the bonding layers comprised of an adhesive and configured to affix the outer layers to the middle layer,wherein the multilayer laminate has been compressed without being subjected to heat such that the thickness of the multilayer laminate has been reduced by about 65% to about 75% of its thickness before compression.2. The stiffening plate of claim 1 , wherein the first outer layer and the second outer layer are comprised of the same metal.3. The stiffening plate of claim 2 , wherein the first outer layer and the second outer layer are both comprised of aluminum.4. The stiffening plate of claim 1 , wherein one or both of the first and second outer layers are comprised of aluminum.5. The stiffening plate of claim 1 , wherein before compression claim 1 , the thickness of the middle layer is more than half the total thickness of the multilayer laminate.6. The stiffening plate of claim 5 , wherein before compression claim 5 , the thickness of the middle layer is more than 70% of the total thickness of the multilayer laminate.7. The ...

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Номер записи: 95
19-03-2020 дата публикации

INVERTED MOTOR TRANSDUCER WITH FRONT SPIDER

Номер: US20200092654A1
Автор: LILIENTHAL Toni Otto, VOISHVILLO Alexander
Принадлежит:

An electrodynamic transducer includes a rear frame defining an open frame interior, and a front frame enclosing the open frame interior and attached to the rear frame, the front frame including a center hub disposed about a central axis of the transducer. A movable diaphragm is positioned within the open frame interior and operably connected to the rear frame. A magnet assembly is disposed forward of the diaphragm and coupled to the center hub, the magnet assembly defining a magnetic air gap annularly disposed about the central axis. A voice coil is disposed in the magnetic air gap surrounding the magnet assembly and operably connected to the diaphragm. A first spider is coupled between the voice coil and the rear frame behind the diaphragm, and a second spider coupled between the diaphragm and the front frame and disposed forward of the diaphragm. 1. An electrodynamic transducer , comprising:a rear frame defining an open frame interior;a front frame enclosing the open frame interior and attached to the rear frame, the front frame including a center hub disposed about a central axis of the transducer;a movable diaphragm positioned within the open frame interior and operably connected to the rear frame;a magnet assembly disposed forward of the diaphragm and coupled to the center hub, the magnet assembly defining a magnetic air gap annularly disposed about the central axis;a voice coil disposed in the magnetic air gap surrounding the magnet assembly and operably connected to the diaphragm;a first spider coupled between the voice coil and the rear frame behind the diaphragm; anda second spider having an undulating configuration, the second spider coupled between the diaphragm and the center hub and disposed forward of the diaphragm.2. The transducer of claim 1 , wherein the second spider includes an inner flange attached to the center hub and an outer attachment portion attached to the diaphragm on a front side thereof.3. The transducer of claim 1 , wherein the center ...

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Номер записи: 96
01-04-2021 дата публикации

VIBRATION MODULE, ELECTRONIC DEVICE, AND METHOD OF CONTROLLING ELECTRONIC DEVICE

Номер: US20210099808A1
Автор: ZHANG Yapei
Принадлежит: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

A vibration module is assembled in a device body of the electronic device and includes: a driving motor and a packaging structure arranged outside the driving motor. The driving motor can cooperate with a sounding part of the packaging structure when in a first vibration mode, and drive the sounding part to generate a vibrating sound wave; and the driving motor can cooperate with at least one function module of the device body when in a second vibrating mode, and drive the function module to vibrate, thereby simplifying the structure of the vibration module, reducing the occupied inner space of the electronic device by the vibration module, and reducing the cost of the electronic device. 1. A vibration module , assembled in a device body of an electronic device , the vibration module comprising: piezoceramics , a driving motor and a packaging structure arranged outside the driving motor; whereinthe driving motor is configured to be electrically connected with a control chip of the electronic device and controlled to be in a first vibration mode or a second vibration mode;the packaging structure comprises a sounding part;when the driving motor is in the first vibration mode, the driving motor is configured to cooperate with the sounding part and drive the sounding part to generate a vibrating sound wave;when the driving motor is in the second vibration mode, the driving motor is configured to cooperate with at least one function module of the device body and drive the at least one function module to vibrate;the piezoceramics is configured to be electrically connected with the control chip and cooperate with the sounding part, so as to be controlled to drive the sounding part to generate the vibrating sound wave.2. The vibration module according to claim 1 , wherein the driving motor is a linear motor.3. The vibration module according to claim 1 , wherein the driving motor is configured to adopt a first vibration parameter in a case that when the driving motor is in ...

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Номер записи: 97
12-05-2022 дата публикации

Panel vibration type sound generating display device

Номер: US20220150629A1
Автор: Kwanho Park, Sungtae Lee, YeongRak CHOI
Принадлежит: LG Display Co Ltd

Disclosed is a display device that includes a display panel, sound generating actuators including a first sound generating actuator in a first area of the display panel and a second sound generating actuator in a second area of the display panel, the first and second sound generating actuators configured to vibrate the display panel to generate sound, and a partition between the first sound generating actuator and the second sound generating actuator.

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Номер записи: 98
28-03-2019 дата публикации

ACOUSTIC MEMBRANE

Номер: US20190098423A1
Автор: Bertl Christian, Pertl Peter, Zechner Christian
Принадлежит:

Acoustic membrane () comprising at least three layers with a first outer layer () and a second outer layer (), wherein the first and the second outer layer () are formed by a thermoplastic elastomer, wherein the thermoplastic elastomer forming the first outer layer and the thermoplastic elastomer forming the second outer layer are independently from each other selected from the group consisting of polyester elastomers, co-polyester elastomers, styrene block copolymers, elastic co-polyamides, thermoplastic silicones, and elastomeric polyolefins, preferably co-polyester elastomers. 1. An acoustic membrane comprising at least three layers with a first outer layer and a second outer layer characterized in that the first and the second outer layer are formed by a thermoplastic elastomer , wherein the thermoplastic elastomer forming the first outer layer and the thermoplastic elastomer forming the second outer layer are independently from each other selected from the group consisting of polyester elastomers , co-polyester elastomers , styrene block copolymers , elastic co-polyamides , thermoplastic silicones , and elastomeric polyolefins , preferably co-polyester elastomers.2. An acoustic membrane according to characterized in that at least one of the first and second outer layer are formed by a thermoplastic elastomer having a Young's modulus below 500 MPa.3. An acoustic membrane according to characterized in that the first outer layer and the second outer layer are formed by the same thermoplastic elastomer.4. An acoustic membrane according to characterized in that at least one damping layer intervenes between the first and the second outer layer.5. An acoustic membrane according to claim 4 , wherein the at least one damping layer is formed by an elastic material.6. An acoustic membrane according to claim 4 , characterized in that the membrane comprises three layers.7. An acoustic membrane according to claim 4 , characterized in that one damping layer of an acrylic ...

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Номер записи: 99
14-04-2016 дата публикации

ACOUSTIC APPARATUS WITH DIAPHRAGM SUPPORTED AT A DISCRETE NUMBER OF LOCATIONS

Номер: US20160105748A1
Автор: Lee Sung Bok, Pal Sagnik
Принадлежит:

An acoustic apparatus includes a back plate, a diaphragm, and at least one pillar. The diaphragm and the back plate are disposed in spaced relation to each other. At least one pillar is configured to at least temporarily connect the back plate and the diaphragm across the distance. The diaphragm stiffness is increased as compared to a diaphragm stiffness in absence of the pillar. The at least one pillar provides a clamped boundary condition when the diaphragm is electrically biased and the clamped boundary is provided at locations where the diaphragm is supported by the at least one pillar. 1. An acoustic apparatus , comprising:a back plate;a diaphragm, the diaphragm and the back plate being disposed in spaced relation to each other and separated by a distance;at least one pillar configured to at least temporarily connect the back plate and the diaphragm;such that the diaphragm stiffness is increased as compared to a diaphragm stiffness in absence of the pillar and such that the at least one pillar provides a clamped boundary condition when the diaphragm is electrically biased and the clamped boundary is provided at locations where the diaphragm is supported by the at least one pillar.2. The acoustic apparatus of claim 1 , wherein the diaphragm generally circular in shape with an axis extending orthogonally to the center of the diaphragm and through the back plate3. The acoustic apparatus of claim 2 , wherein a pillar is formed about the axis and configured to at least temporarily connect the back plate and the diaphragm;4. The acoustic apparatus of claim 1 , wherein the at least one pillar comprises multiple pillars.5. The acoustic apparatus of claim 1 , wherein the diaphragm and the at least one pillar are integrally formed together.6. The acoustic apparatus of claim 1 , wherein the diaphragm and the at least one pillar are formed separately.7. The acoustic apparatus of claim 6 , wherein the pillar is connected to a separate back plate.8. The acoustic apparatus of ...

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Номер записи: 100