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JP3193406U |
To provide a multi-ring coaxial same sound source speaker for expanding a range in which an electric voice unit can be electrically adjusted. A multi-ring coaxial same sound source speaker includes a mid-high range vocalization unit 2, a...
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JP2014187528A |
To provide a sound source integrated display device in which a video display element and a sounding body are integrated at a pixel level on a same substrate, and to provide a manufacturing method of the same.A sound source integrated dis...
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JP3193281U |
A piezoelectric-type speaker is provided for converting electrical signals into sounds capable of being heard by a human ear. The piezoelectric-type speaker includes a housing, a separating portion, a supporting base, a high-pitched spea...
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JP3193184U |
To provide a coaxial same sound source speaker structure in which vocal vibration sound source points of a low-pitched vocalization unit and a mid-high-pitched vocalization unit are aligned at a horizontal height to widen a range in whic...
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JP5580651B2 |
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JP2014143677A |
To provide a thermoacoustic device and a stack of the thermoacoustic device that can convert thermal energy into acoustic energy with higher efficiency.A thermoacoustic device 10 includes: a heat absorber 22 which is supplied with heat; ...
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JP5512063B2 |
Electroactive polymers that are pre-strained to improve conversion from electrical to mechanical energy are disclosed. When a voltage is applied to electrodes contacting a pre-strained polymer, the polymer deflects. This deflection may b...
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JP5507132B2 |
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JP5491080B2 |
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JP5491857B2 |
A method for utilizing an optical resonator, the method comprising: providing an optical resonator (10) comprising a reflective element (20) and a spatial mode filter (30) positioned relative to the reflective element such that light emi...
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JP5474614B2 |
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JP5456531B2 |
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JP5429013B2 |
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JP5398633B2 |
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JP5385184B2 |
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JP3188023U |
To provide dual dynamic coaxial earphones capable of solving intermodulation distortion in a high and low range. A movable coil type vibration located in an earphone housing 2 in which an accommodation space 212 and a sound emitting hole...
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JP5356992B2 |
To provide a thermoacoustic device, specifically, the thermoacoustic device utilizing a carbon nanotube. This device includes: a signal device; and a sound wave generator including a carbon nanotube structure. The carbon nanotube structu...
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JP5335774B2 |
Direct digital speaker apparatus receiving a digital input signal and generating sound accordingly, the apparatus including: (a) an array of pressure-producing elements; and (b) a controller operative to compute a timing pattern determin...
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JP5317373B2 |
A method of fabricating an optical structure on an optical fiber is provided. In a first step, the end of the end of the optical fiber is prepared. In a second step, a dielectric layer is formed onto the fiber end. In a third step, the d...
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JP5313944B2 |
The invention relates to a thermoacoustic device, comprising a thermoacoustic element and a signal input device, wherein, the signal input device is used for inputting an audio-frequency electric signal to the thermoacoustic element. The...
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JP5313411B1 |
A porous silica material disclosed in the present application is a porous silica material in which a plurality of silica particles are connected to one another three-dimensionally, wherein: a density of the porous silica material is less...
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JP2013187845A |
To provide a flexible speaker element which can be formed in large area to implement a thin film speaker of no vibration type.A speaker element comprises: a substrate 1; a heat insulation layer 2 consisting of organic material formed on ...
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JP5281428B2 |
A microphone includes: a needle-like electrode; an opposite electrode facing the needle-like electrode; a discharge section formed between the needle-like electrode and the opposite electrode; a high-frequency oscillating circuit includi...
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JP5270466B2 |
The invention relates to a sounding device, which comprises a sound-ing element and a signal input device used for outputting an electrical signal to the sounding device, wherein the sounding device comprises a support structure, at leas...
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JP5270495B2 |
A loudspeaker includes an enclosure and at least one sound wave generator disposed in the enclosure. The sound wave generator includes at least one carbon nanotube structure. The carbon nanotube structure is capable of converting electri...
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JP5270460B2 |
The invention relates to a sounding device comprising an electromagnetic wave signal input device and a sounding element, wherein the sounding element and the electromagnetic wave signal input device are arranged at intervals; the soundi...
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JP5270459B2 |
The invention relates to a sound transmission system, which comprises an acoustoelectric conversion device for converting sound signals to electrical signals; an electric wave conversion device which is electrically connected with the ac...
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JP5270646B2 |
The invention relates to a sound production device, which comprises a sound production element and a signal input device. The signal input device is used for outputting electric signals to the sound production element, wherein the sound ...
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JP5270461B2 |
The invention relates to a sounding device comprising an electromagnetic wave signal input device and a sounding element, wherein the sounding element and the electromagnetic wave signal input device are arranged at intervals; the soundi...
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JP5269708B2 |
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JP5270612B2 |
A room heating device includes a supporting body, a thermoacoustic element, a first electrode and a second electrode. The thermoacoustic element is disposed on the supporting body. The first electrode and the second electrode are connect...
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JP5271461B1 |
An optical microphone includes: an acousto-optic medium section having a pair of principal surfaces and at least one lateral surface provided therebetween; a restraint section which is in contact with the at least one lateral surface for...
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JP5254921B2 |
An apparatus includes a headphone. The headphone includes at least one housing; and at least one sound wave generator disposed in the housing. The sound wave generator includes at least one carbon nanotube structure.
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JP5254940B2 |
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JP5232334B1 |
The optical microphone disclosed in the present application is an optical microphone that detects an acoustic wave propagating in an environmental fluid by using a light wave, is composed of a solid propagation medium, and has an inciden...
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JP5222955B2 |
The invention relates to a sensor (1) and a method for measuring pressure, variation in sound pressure, a magnetic field, acceleration, vibration, or the composition of a gas. The sensor (1) comprises an ultrasound transmitter (2), and a...
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JP2013126241A |
To stabilize, in a sonic wave generation device, a resistance value of a heating element film with respect to a temperature change while improving reliability by suppressing oxidation of the heating element film.A sonic wave generation d...
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JP2013098843A |
To efficiently drive a sounding body that uses a thermoacoustic effect.A speaker drive device 1 includes: a thin film 41; a sounding body 40 using the thermoacoustic effect and having an electrode 44 formed on the surface of the thin fil...
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JP5194054B2 |
An acoustic projection screen includes a screen base and a carbon nanotube layer. The carbon nanotube layer is attached to the screen base and connected to electrodes.
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JP5180192B2 |
Direct digital speaker apparatus receiving a digital input signal and generating sound accordingly, the apparatus including: (a) an array of pressure-producing elements; and (b) a controller operative to compute a timing pattern determin...
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JP5180191B2 |
A system that includes a direct digital speaker volume control device configured to be coupled to a direct digital speaker. The direct digital speaker includes many pressure producing elements being adapted to generate a sound at a sound...
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JP5175289B2 |
An optical sound detection system including: a laser source to generate a laser beam; an optical fiber; an optical sensor aligned to detect a detected portion of a diffraction pattern formed by the laser light emitted from the output cou...
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JP2013055599A |
To provide an optical microphone capable of detecting a propagation direction of acoustic wave and a direction of propagation.The optical microphone detects an acoustic wave propagating in an environmental fluid using an optical wave, an...
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JP5139408B2 |
A thermoacoustic device includes a substrate, at least one first electrode, at least one second electrode and a sound wave generator. The at least one first electrode and the at least one second electrode are disposed on the substrate. T...
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JP5134127B2 |
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JP5134125B2 |
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JP5134120B2 |
The present disclosure relates to a method for making a thermoacoustic element. In the method, a graphene film is arranged on a metal substrate. A nonmetal substrate is stacked with the graphene film located on the metal substrate to for...
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JP5134124B2 |
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JP5134121B2 |
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JP5134129B2 |
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