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Patent Searching and Data


Matches 301 - 350 out of 2,006

Document Document Title
WO/1990/007250A1
The microphone, by means of which acoustic signals whose spectrum is above 20Hz, may be measured, comprises a reference space exempt from this signal. It further comprises a monomode light source (10) and an optical interferometer with a...  
WO/1989/012375A1
An optical microphone is described that is composed of the body of the microphone proper, of a proof laser (7), of a thin film (1), and of a detector (11) sensitive to position. The pressure waves due for instance to the absorption by a ...  
WO/1989/006512A1
An optical reflection hydrophonic probe is useful for determining the pressure-time behaviour of pressure waves in fluids. One end of an optical waveguide (glass fibre) dips into the fluid. The reflection of light at the tip of the glass...  
WO/1989/000295A1
Sensor systems and methods for detecting the position and/or movement of an object (20) in multiple degrees of freedom. The sensor system of the present invention comprises at least one field-effect transistor (FET) (110), the geometrica...  
WO/1988/007785A1
Electrokinetic transducing method and system are disclosed in which the two electrode arrays (14, 16) confront each other and each electrode in one array (14) is equidistant from the two nearest electrodes in the other array (16). The el...  
WO/1988/004126A1
A thin diaphragm (22) receives pressure across one side and faces a beam splitter (25) on the other side. The beam splitter (25) is integrally attached to the diaphragm (22) and serves as a local optical reference plane for the entire as...  
WO/1985/000495A1
An electroacoustic transducer, primarily in the form of a capacitive microphone, for incorporation into a semiconductor substrate (10). The vibrating element comprises a largely non-tensioned diaphragm (14), such as an epitaxial layer (1...  
WO/1981/003100A1
A high-fidelity type loudspeaker decreases distortion and increases conversion efficiency by decreasing mass by employing a gas driver. A gas-tight enclosure (12) contains a polar gas (whose molecules are capable of exhibiting a dipole m...  
JP2019049560A
[Subject] A pressure sensor, a microphone, a blood-pressure sensor, and a touch panel which can improve the stability of detection are provided. [Means for Solution] According to the embodiment, a pressure sensor contains an attaching pa...  
JP6474883B2  
JP6471391B2  
JP6467038B2  
JP6462078B2  
JP6456954B2  
JP2019501605A
The 2nd sound output part provided by the present invention separating the 1st sound output part, the 1st above-mentioned sound output part, and a predetermined interval, Having at least one opening formed in the 2nd above-mentioned soun...  
JP2018537902A
The present invention presents an acoustic output device provided with the 1st sound output part, the 2nd sound output part contacted by at least one copy of the 1st sound output part, and the case where the 1st and 2nd sound output part...  
JP2018201182A
To provide an electroacoustic conversion device which enables a user to select desired acoustic properties.An electroacoustic conversion device includes a housing 40, a piezoelectric type sounder 32, and a movable member 70. The housing ...  
JP6438544B2  
JP2018536304A
A system contains a laser microphone, a laser base microphone, or an optical microphone. A laser microphone contains a laser transmitter which transmits a dispatch laser beam which turns on a speaker. A laser transmitter acts as a self-m...  
JP2018133625A
To provide a thermoacoustic device and an acoustic wave inspection device in which strength of a heat generator is relatively large and the degree of freedom of design is relatively large.A thermoacoustic device includes a heat generator...  
JP2018523414A
It is combined with a top electrode of a cell and an array of a CMUT cell has DC bias voltage which applies bias to an electrode so that it may be in a desired collapse state or a partial collapse state. In short circuit failure of a CMU...  
JP2018517325A
Arrangement of an optical microphone is an array of the optical microphone (4) on a substrate (8), and the each optical microphone (4) is, The array of an optical microphone (4) which provides the signal which shows displacement of each ...  
JP2018516496A
A laser microphone may contain the detection system containing a plurality of laser subsystems. The detection system can generate discharge electromagnetic radiation based on a frequency pattern, and it can constitute it so that the refl...  
JP6321156B2  
JP6315429B2  
JP2018506241A
The present invention indicates an acoustic output device provided with the housing by which accommodation space was established in the inside, the 1st sound output part provided in the above-mentioned housing, and the 2nd sound output p...  
JP2017216728A5  
JP2018021923A
To provide a pressure sensor having a wide dynamic range, a microphone and a sound processing system or a pressure sensor capable of performing detection in a wide frequency band, the microphone and the sound processing system.There is p...  
JP6272886B2  
JP2018004522A
To improve detection sensitivity.An ultrasonic flaw detection device comprises: an array probe 110 that is configured to include a transmission unit 120 composed of a plurality of oscillators transmitting an ultrasonic to an interior of ...  
JP2017220935A
To provide an optical microphone capable of performing accurate audio demodulation in accordance with a state of an optical system.An optical microphone includes: a light source which radiates a light wave; a photodetector which receives...  
JP2017537344A
A system and a method of generating reinforcement voice data relevant to at least one speaker. A process of generating reinforcement voice data is provided with the following. A step which receives remote signal data from a remote sound ...  
JP2017216728A
To provide an electromechanical converter or the like that can prevent light from entering a reception surface without deteriorating mechanical characteristics of a vibration film.An electromechanical converter includes at least one cell...  
JP2017215326A
To provide a sensor capable of improving sensitivity, and a microphone.According to an embodiment, a sensor includes: a printed-circuit board; a cover; a support part provided between the printed-circuit board and the cover; a deformable...  
JP6243668B2  
JP2017208596A
To provide an ultrasonic measuring apparatus which does not need to install a position of a light detecting unit with respect to a vibrating film with high positional accuracy in a plan view of a substrate.An ultrasonic transducer device...  
JP2017204844A
To provide a moving-coil piezoelectric simplex dual band earphone of simple structure, in which members can be positioned easily, and mixing and resonance effect can be improved while facilitating manufacture with high yield.A speaker un...  
JP2017194975A
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...  
JP6207325B2  
JP2017175622A
To provide an optical microphone system that reduces noise.One embodiment includes an optical microphone system. The optical microphone system includes a laser configured to emit an optical beam at a linear polarization, and an optical c...  
JP6196557B2  
JPWO2016088459A1
After reducing a drive loss to a diaphragm, a good output state of a sound in a broadband is secured. An annular coil bobbin in which at least one copy is arranged between a yoke and a magnet, A coil which it is twisted around a coil bob...  
JP6193279B2  
JP2017152895A
To provide an acoustic sensor which prevents sensitivity from being reduced and directivity from being distorted, by reducing noise regardless of a frequency of a sonic wave to be detected, and a sonic wave detection method.An acoustic s...  
JP6178285B2  
JP2017131560A
To provide an ultrasonic device which can generate an ultrasonic wave having a desired intensity distribution or can generate an ultrasonic wave having an intensity distribution that can be approximated to a desired intensity distributio...  
JP6170705B2  
JP2017126971A
To provide a cure speaker that removes fatigue of a human body.A side of a foot touches a ground so that plasma/ions in the air are combined due to an electrical signal in a human body, accumulated like a magnet in the human body, the bo...  
JP2017123637A
To miniaturize a single directivity type microphone having a ribbon type diaphragm.A microphone includes a bidirectional ribbon type microphone unit (2) and an omnidirectional capacitor type microphone unit (3). The ribbon type microphon...  
JP3210655U
[Subject] This design provides structure of headphone by which a cubic effect of an outstanding acoustic field is acquired. [Means for Solution] Appearance Otobe mainly formed in the whole surface of fixed stand 2 and the fixed stand, an...  

Matches 301 - 350 out of 2,006