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JP5990627B1 |
[Subject] Provide what was excellent in a frequency characteristic with a speaker which drives a dynamic speaker and a piezoelectric loudspeaker with amplifier of 1. [Means for Solution] Speaker 1 provided with current amplifier 4 of 1 w...
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JP2016161497A |
To provide a thermoacoustic device capable of easily generating a sound of high sound pressure level enough for acoustic measurement with simple constitution.A thermoacoustic device 100 is provided in a reactor pressure vessel, and varie...
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JP5975319B2 |
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JP5961035B2 |
A sensor (100) includes a sensor head (102) including an acoustic detector (106) configured to receive light (114) from a first light source (304) and to reflect the light (118) upon incidence of acoustic waves (116). The sensor also inc...
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JP5959177B2 |
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JP2016123063A |
To provide an acoustic wave probe, etc. capable of accurately arranging the relative positions of multiple acoustic wave transducers with a relatively simple configuration through the use of positioning means.In an acoustic wave probe 10...
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JP5937044B2 |
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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JP2016086281A |
To provide an earphone outputting a voice from a driver unit with appropriate acoustic characteristics.An earphone includes a housing 10, an insertion part 100 constituted to be more flexible than the housing, and attached thereto, and a...
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JP2016058095A |
To provide electronic devices containing flexible displays and internal components.An internal component is positioned under a flexible display. The internal component may be an output device such as a speaker that transmits sound throug...
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JP5885909B2 |
An electronic pressure-sensing device 100 comprising a transistor 105 located on a substrate 110. The device also comprises a linker arm 115 that has a tip 120 which is configured to touch a contact region 125 of the substrate that is ne...
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JP5881127B2 |
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JP5873802B2 |
The present invention addresses the problem of increasing the lifetimes of an oscillatory wave motor and a sound generation device using the oscillatory wave motor as a drive source, and proposed the structure and mechanism for integrall...
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JP5867975B1 |
To provide a speaker having excellent frequency characteristics in a high frequency range and capable of stable production, and an earphone using the speaker. A woofer 2 supported by a mold 23, a tweeter 3 having a piezoelectric element ...
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JP5860559B1 |
To provide an electroacoustic conversion device capable of easily obtaining a desired frequency characteristic and an electronic device provided with the electroacoustic conversion device. An electroacoustic conversion device (earphone 1...
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JP2016502311A |
A system for detecting speech-related audio signals by using a laser-based detection means that includes a mask that is configured to be worn over the speaker's face so as to cover the speaker's mouth. The mask comprises at least one ref...
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JP2016005279A |
To provide an optical microphone (10) and a method of using the optical microphone.The optical microphone (10) comprises a light source (11) configured to emit a light beam and an acoustic sensor (12) configured to reflect the light beam...
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JP2016001775A |
To provide enough anti-noise at the time of sound collection under a noise environment.A super-directional microphone system 5 includes an ultrasonic transmitter 1, an ultrasonic receiver 2, and a control unit 3 that extracts and obtain ...
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JP5840825B2 |
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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JP2015224903A |
To provide a high-sensitivity pressure sensor.A pressure sensor according to an embodiment includes a substrate, a support portion, a film portion, and magnetoresistive elements. The support portion is bonded to the substrate using a fir...
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JP5828716B2 |
The invention describes devices for performing thermodynamic work on a fluid, such as pumps (340), compressors and fans. The thermodynamic work may be used to provide a driving force for moving the fluid. Work performed on the fluid may ...
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JP5826417B1 |
To provide an electroacoustic conversion device having excellent high frequency characteristics. An electroacoustic conversion device according to an embodiment of the present invention includes a piezoelectric sounding body 20, a housin...
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JP5818852B2 |
A thermoacoustic device comprise a substrate, a number of thermoacoustic units on the substrate, a number of switches, a driving integrated circuit, a scanning integrated circuit, and a common electrode. The switches are electrically con...
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JP5807105B2 |
A polymer speaker (1) is configured to include an electrostrictive element (10) having an elastomer or resin dielectric layer (11) and a plurality of electrode layers (12a, 12b) arranged on the front and back surfaces of the dielectric l...
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JP5777540B2 |
An electro-acoustic transducer includes a needle electrode, an opposite electrode, a discharge region between the needle electrode and the opposite electrode, a high-frequency oscillating circuit in the discharge region causing a high-fr...
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JP2015156617A |
To obtain an optical microphone capable of adjusting sensitivity without fluctuating frequency response and an optical displacement sensor capable of adjusting sensitivity. A diaphragm 7 that receives sound waves and vibrates, a light pr...
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JP5768198B1 |
To provide an electroacoustic conversion device having excellent high frequency characteristics. A speaker unit (electroacoustic conversion device) 2 includes a piezoelectric sounding body 20, a housing, and a support member 23. The piez...
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JP3198475U |
To provide a piezoelectric ceramic dual band bass enhanced earphone. The dynamic coil speaker assembly 40 includes an earphone housing provided with an audio output hole 113, a dynamic coil speaker assembly 40, and a piezoelectric cerami...
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JP5743715B2 |
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JP5734874B2 |
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JP3197924U |
To provide a piezoelectric ceramic dual frequency earphone structure . The earphone housing 1, the movable coil type speaker unit 3, the piezoelectric ceramic speaker unit 4, and the circuit board 6 are included. The piezoelectric cerami...
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JP5719279B2 |
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JP5714200B2 |
The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves ...
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JP5703359B2 |
A thermoacoustic device includes a first substrate, a sound wave generator, a first electrode, a second electrode and a second substrate. A number of recesses are defined on a surface of the first substrate. The sound-producing parts of ...
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JPWO2013058237A1 |
The dielectric film of the present invention contains an elastomer and barium titanate particles having a crystallinity of 80% or more. The elastomer and the barium titanate particles have functional groups that can react with each other...
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JP5693304B2 |
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JP3196707U |
To provide a dual frequency coaxial earphone which saves design and manufacturing process time. The dual frequency coaxial earphone 1 includes a movable coil type speaker unit 3, a lid body 4, and a treble speaker unit 5. The movable coi...
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JP5685612B2 |
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JP5685621B2 |
A thermoacoustic chip includes a substrate, a sound wave generator, a first electrode, and a second electrode, and an integrated circuit chip. The substrate has a first surface. The sound wave generator is located on the first surface of...
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JP5685614B2 |
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JP5685620B2 |
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JP5685622B2 |
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JP5671101B2 |
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JP3195965U |
To provide a dual frequency earphone structure. The earphone housing 1, the movable coil type speaker unit 3, the piezoelectric ceramic speaker unit 4, and the circuit board 6 are included. The piezoelectric ceramic speaker unit 4 is pro...
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JP5667980B2 |
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JP2015019732A |
To provide a subject information acquisition device which acquires a two-dimensional sound pressure distribution at a high sampling rate when receiving an acoustic signal using a Fabry-Perot type probe.A subject information acquisition d...
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JP2015012354A |
To provide a displacement meter capable of outputting a signal resistant to noise and having high transmission quality.The displacement meter for irradiating an object to be displaced with light and measuring a displacement magnitude of ...
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JP5646694B2 |
An earphone includes a loudspeaker, a signal process, an audio signal input port, and a driving port. The loudspeaker includes a thermoacoustic device disposed in a housing. The signal processor is electrically connected to the loudspeak...
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JP5646695B2 |
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JP3194121U |
To provide an integrated electrostatic earphone single module structure capable of improving the audible frequency resolution of an earphone. An integrated electrostatic earphone unit module is housed in each of the left and right ear en...
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JP5607018B2 |
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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