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Acoustic Wave patents



      

This page is updated frequently with new Acoustic Wave-related patent applications.




Date/App# patent app List of recent Acoustic Wave-related patents
07/21/16
20160212523 
 Acoustic waveguide patent thumbnailnew patent Acoustic waveguide
A high frequency waveguide and methods relating to the design and use of the waveguide are described. The waveguide can include an acoustic input to receive an audio input signal from a high frequency driver, an acoustic output to broadcast sound, and a plurality of acoustic paths extending from the input to the output.
Harman International Industries, Inc.


07/21/16
20160211829 
 Acoustic wave device patent thumbnailnew patent Acoustic wave device
An acoustic wave device includes: a y-cut x-propagation lithium tantalate substrate having a cut angle of 20° or more and 48° or less; and a grating electrode that is composed of one or more metal films laminated on the substrate, and excites an acoustic wave, wherein when a density of each metal film in the one or more metal films is represented by ρi, a poisson's ratio of each metal film is represented by pi, a film thickness of each metal film is represented by hi, a density of cu is represented by ρ0, a poisson's ratio of cu is represented by p0 and a pitch is represented by λ, a total value of “(hi/λ)×(ρi/ρ0)×(pi/p0)” for each metal film with respect to the one or more metal films is more than 0.08.. .
Taiyo Yuden Co., Ltd.


07/21/16
20160209584 
 Acoustically enhanced optical cables patent thumbnailnew patent Acoustically enhanced optical cables
Methods and apparatus to control the acoustic properties of optical cables used as in-well oil and gas probes for acoustic monitoring, such as distributed acoustic sensing (das). One example aspect provides a solid path for the acoustic wave to propagate from an outside armor layer of the cable to the sensing optical waveguide embedded therein.
Weatherford Technology Holdings, Llc


07/21/16
20160209538 
 Apparatus for mode extraction using multiple frequencies patent thumbnailnew patent Apparatus for mode extraction using multiple frequencies
An apparatus is provided for extracting slowness dispersion characteristics of sonic wave forms in broadband acoustic waves received by multiple sensors including means to digitize the sonic wave forms to form discrete time wave forms and converting the discrete time wave forms into frequency domain wave forms and means to divide a processing band of the wave forms into frequency sub-bands. For each sub-band approximating a family of candidate dispersion curves for multiple modes, parameterizing each of the curves by phase and group slowness, and forming a frequency dependent over-complete dictionary of basis elements, each corresponding to a pair of phase and group slownesses.
Schlumberger Technology Corporation


07/21/16
20160208383 
 Systems and methods for enhancing mobility of atomic or molecular species on a substrate at reduced bulk temperature using acoustic waves, and structures formed using same patent thumbnailnew patent Systems and methods for enhancing mobility of atomic or molecular species on a substrate at reduced bulk temperature using acoustic waves, and structures formed using same
Under one aspect of the present invention, a method for enhancing mobility of an atomic or molecular species on a substrate may include exposing a first region of a substrate to an atomic or molecular species that forms a molecular bond with the substrate in the first region; directing a laser pulse to a second region of the substrate so as to generate an acoustic wave in the second region, the acoustic wave having spatial and temporal characteristics selected to alter the molecular bond; and transmitting the acoustic wave from the second region to the first region, the acoustic wave altering the molecular bond between the substrate and the atomic or molecular species to enhance mobility of the atomic or molecular species on the substrate in the first region.. .
The Aerospace Corporation


07/21/16
20160206246 
 Object information acquiring apparatus and object information acquisition method patent thumbnailnew patent Object information acquiring apparatus and object information acquisition method
An object information acquiring apparatus comprises an irradiation unit that irradiates an object with light; a receiving unit including detection elements that receives acoustic waves generated from the object and outputs analog signals; a conversion unit that performs a/d conversion on the analog signals to generate first digital signals; a memory that stores the first digital signals; a correction unit that generates second digital signals by correcting the first digital signals using different frequency filter in accordance with a positional relation between a position in which characteristic information of the object is acquired and each of the detection elements; and an acquiring unit that acquires the characteristic information of the object based on the second digital signals.. .
Canon Kabushiki Kaisha


07/14/16
20160204762 
 Acoustic wave device patent thumbnailAcoustic wave device
The present invention relates to an acoustic wave device including: a substrate; an idt arranged on the substrate; a connection electrode arranged on the substrate and electrically connected to the idt; a side wall formed outside the idt to create a cavity including the idt on the substrate; a cover formed on a top of the side wall; a connection terminal penetrating the side wall or the cover or formed along an inner or outer peripheral surface of the side wall, and electrically connected to the connection electrode; and a conductive layer formed on a top of the cover not to be overlapped with the connection terminal, in which an area of the conductive layer is less than 50% of an area of the cover.. .
Wisol Co., Ltd.


07/14/16
20160203810 
 Non-reciprocal acoustic devices based on linear or angular momentum biasing patent thumbnailNon-reciprocal acoustic devices based on linear or angular momentum biasing
A non-reciprocal acoustic device that accomplishes non-reciprocity via linear or angular-momentum bias. The non-reciprocal acoustic device includes an azimuthally symmetric or planar acoustical cavity (e.g., ring cavity), where the cavity is biased by imposing a circular or linear motion of a gas, a fluid or a solid medium filling the cavity.
Board Of Regents, The University Of Texas System


07/07/16
20160193613 
 Method and  manipulating particles patent thumbnailMethod and manipulating particles
A method and apparatus for manipulating polarizable dielectric particles. The method includes positioning a liquid containing the particles above a surface of a piezoelectric material (2).
University Of Leeds


07/07/16
20160192908 
 Subject information acquiring device, subject information acquiring method, and program patent thumbnailSubject information acquiring device, subject information acquiring method, and program
A subject information acquiring device includes a plurality of conversion element and a processing unit. Each of the plurality of conversion elements transmits acoustic waves as to a subject, receives reflected waves which have reflected within the subject, and converts the received reflected waves into time-sequence reception signals.
Canon Kabushiki Kaisha


07/07/16
20160192843 

Photoacoustic apparatus


A photoacoustic apparatus disclosed in the description includes a light source; transducers that detect acoustic waves and output electric signals, the acoustic waves being generated when an object is irradiated with light generated from the light source; a support member that supports the transducers such that directional axes of the transducers gather; a moving unit that moves the support member relative to the object within a movement region; a storage unit that stores the electric signals output from the transducers at timings; and a computing unit that acquires object information for each reconstruction position on the basis of the electric signals stored in the storage unit. The light source generates the light at the timings.
Canon Kabushiki Kaisha


06/30/16
20160192095 

Method for performing an active profiling of a sound emitted by an engine and corresponding profiling system


A method for performing an active profiling of the sound emitted by a vehicle engine including the steps of injecting second acoustic waves (mw), which are able to combine with the first acoustic waves (ew) in a merge point in said primary propagation path and to generate third resulting acoustic waves (rw); and generating a driving signal for the diffuser by regulating the amplitude of harmonics of the driving signal (sp) as a function of reference acoustic waves and of a workpoint of the engine, calculating equalization coefficients (α1, . .

06/30/16
20160192062 

Acoustically transparent waveguide


The invention provides a high-frequency acoustic waveguide for use in coaxial loudspeaker systems. The waveguide is made up of a plurality of walls that define a conduit with an input end and an output end.

06/30/16
20160191017 

Co-integrated bulk acoustic wave resonators


An electrical circuit assembly can include a semiconductor integrated circuit, such as fabricated including cmos devices. A first lateral-mode resonator can be fabricated upon a surface of the semiconductor integrated circuit, such as including a deposited acoustic energy storage layer including a semiconductor material, a deposited piezoelectric layer acoustically coupled to the deposited acoustic energy storage layer, and a first conductive region electrically coupled to the deposited piezoelectric layer and electrically coupled to the semiconductor integrated circuit.

06/30/16
20160191015 

Split current bulk acoustic wave (baw) resonators


An acoustic resonator device includes a temperature compensation structure disposed beneath the first electrode and above the substrate.. .

06/30/16
20160190206 

Acoustic wave device structure, integrated structure of power amplifier and acoustic wave device, and fabrication methods thereof


An integrated structure of power amplifier and acoustic wave device comprises: a compound semiconductor epitaxial substrate, a power amplifier upper structure formed on a first side of said compound semiconductor epitaxial substrate, and a film bulk acoustic resonator formed on a second side of said compound semiconductor epitaxial substrate; wherein forming an epitaxial structure on a compound semiconductor substrate to form said compound semiconductor epitaxial substrate; wherein said first side of said compound semiconductor epitaxial substrate and said power amplifier upper structure form a power amplifier; said second side of said compound semiconductor epitaxial substrate and said film bulk acoustic resonator form an acoustic wave device; the integrated structure of power amplifier and acoustic wave device on the same compound semiconductor epitaxial substrate is capable of reducing the component size, optimizing the impedance matching, and reducing the signal loss between power amplifier and acoustic wave device.. .

06/30/16
20160189702 

Acoustic metamaterial gate


An acoustic wave gate is provided. The gate includes one or more layers of metamaterial configured to be in a first state and a second state and configured to change from the first state to the second state when electrical and/or magnetic energy is applied thereto.

06/30/16
20160189375 

Object information acquiring apparatus


An object information acquiring apparatus, includes: an irradiator irradiating an object with light; a probe having a plurality of transducers which receive an acoustic wave generated from the object irradiated with the light and output a reception signal; and a controller using the reception signal to acquire property information on the interior of the object, and the probe has a plurality of apertures and a surface on which the plurality of transducers are arranged has a spherical surface shape.. .

06/30/16
20160187481 

Opto-acoustic imaging system with detection of relative orientation of light source and acoustic receiver using acoustic waves


In an embodiment, a system and method are provided for determining position and orientation of an optical delivery unit relative to an acoustic receiving unit, in the field of opto-acoustic imaging, wherein the optical delivery unit comprises a first fiducial marker site configured to emit acoustic responses and a second fiducial marker site configured to emit acoustic responses. A plurality of acoustic signals from a volume of a subject are sampled and recorded, each of the plurality of acoustic signals being collected at a different data collection position relative to a coordinate reference frame.

06/30/16
20160185419 

A vehicle which is operable by a motor and by muscular energy and has an improved torque sensor


A vehicle which is operable by a motor and/or muscular energy, in particular an electric bicycle, which includes an electric motor, a crankshaft drive having a first crank, a second crank, and a crankshaft, a torque sensor for detecting a torque applied by a rider at the crankshaft drive, and a control unit, which is set up to actuate the electric motor based on at least the values acquired by the torque sensor to drive the vehicle, the torque sensor being situated at the crankshaft drive and the torque sensor including at least one surface acoustic wave sensor.. .

06/30/16
20160184790 

Material fabrication using acoustic radiation forces


Apparatus and methods for using acoustic radiation forces to order particles suspended in a host liquid are described. The particles may range in size from nanometers to millimeters, and may have any shape.

06/30/16
20160184133 

Therapy device


A therapy device comprises a light source; an irradiation unit configured to irradiate an object with light from the light source; a reception unit configured to receive an acoustic wave generated and propagated within the object due to the light, and output the acoustic wave as an electrical signal; a processing unit configured to acquire characteristic information of the object based on the electrical signal output from the reception unit; a temperature adjustment unit configured to be capable of changing a temperature of the object; and a temperature control unit configured to control the temperature adjustment unit based on the characteristic information.. .

06/30/16
20160183806 

Photoacoustic apparatus


A photoacoustic apparatus that improves absorption coefficient measurement accuracy by obtaining information on a subject after performing correction in accordance with amounts of light emitted to the subject includes a photoacoustic wave detection unit that detects photoacoustic waves generated from a subject when a light source irradiates the subject with light and output detection signals and a signal processing unit that performs signal processing to obtain information on the subject in accordance with the detection signals. The signal processing unit obtains information on the subject after performing correction in accordance with amounts of light emitted to the subject..

06/23/16
20160183007 

Acoustic galvanic isolation device


An acoustic galvanic isolation device includes a substrate capable of transmitting an acoustic wave. A first network of vibrating membrane electroacoustic transducers is arranged on a first surface of the substrate.

06/23/16
20160182011 

Acoustic resonator having integrated lateral feature and temperature compensation feature


A bulk acoustic wave (baw) resonator device includes a bottom electrode on a substrate over one of a cavity and an acoustic mirror, a piezoelectric layer on the bottom electrode, a top electrode on the piezoelectric layer, and a temperature compensation feature having positive temperature coefficient for offsetting at least a portion of a negative temperature coefficient of the piezoelectric layer. At least one of the bottom electrode and the top electrode includes an integrated lateral feature configured to create at least one of a cut-off frequency mismatch and an acoustic impedance mismatch..

06/23/16
20160182010 

Acoustic wave device


An acoustic wave device includes: a piezoelectric substrate; and an idt formed on the piezoelectric substrate, wherein an anisotropy coefficient is positive, an overlap region where electrode fingers of the idt overlap each other includes a center region and an edge region, the electrode fingers in the center and edge regions are continuously formed, the electrode finger in the edge region is inclined with respect to the electrode finger in the center region so that a pitch in a width direction of the electrode finger in the edge region is greater than a pitch in a width direction of the electrode finger in the center region, and an angle between the width direction in the center region and a crystal axis orientation of the piezoelectric substrate is less than an angle between the width direction in the edge region and the crystal axis orientation.. .

06/23/16
20160182008 

Multi-frequency guided wave devices and fabrication methods


A micro-electrical-mechanical system (mems) guided wave device includes a piezoelectric layer including multiple thinned regions of different thicknesses each bounding in part a different recess, different groups of electrodes on or adjacent to different thinned regions and arranged for transduction of lateral acoustic waves of different wavelengths in the different thinned regions, and at least one bonded interface between the piezoelectric layer and a substrate. Optionally, a buffer layer may be intermediately bonded between the piezoelectric layer and the substrate.

06/23/16
20160178680 

Sensor device and thermoacoustic measurement of electromagnetic fields


The invention relates to a sensor device and a corresponding method for measuring an electromagnetic field (10) by means of—a sensor unit (1) comprising a medium (2), which can absorb energy from the electromagnetic field (10) and which exhibits transient thermal expansion upon absorption of energy from the electromagnetic field (10), whereby acoustic waves, in particular ultrasonic waves, are generated, and a detector (3) for detecting the acoustic waves and for generating according detector signals and—a processing unit (4) for deriving at least one property of the electromagnetic field (10) from the detector signals. The sensor device and method according to the invention allow for measuring electromagnetic fields in free space, ambience, matter and biological tissue in a simple and reliable way..

06/23/16
20160178583 

Sensor device and detecting thermoacoustic responses of a medium


The invention relates to a sensor device and a corresponding method for detecting, in particular imaging, thermoacoustic responses of a medium, comprising a detector for detecting acoustic waves, in particular ultrasonic waves, generated in the medium upon absorption of energy from an electromagnetic field and/or from an alternating magnetic field comprising electromagnetic waves or magnetic waves, respectively, of a first frequency. In order to allow for a detection of thermoacoustic responses of the medium, in particular upon absorption of energy from continuous wave (cw) electromagnetic fields and/or from alternating magnetic fields, the detector is designed for detecting acoustic waves of a second frequency which is higher than, in particular twice, the first frequency..

06/23/16
20160177802 

Acoustic energy cooling source


An apparatus includes an exhaust system, a cooling system, and two or more thermoacoustic devices. A first thermoacoustic device is configured to convert heat energy from the exhaust system to amplify an acoustic wave.

06/23/16
20160175742 

Cell washing device using a bulk acoustic wave with phantom material


Separation devices for separating a component from a multicomponent mixture are provided. The separation devices can include a body that defines a separation channel with a cross-sectional geometry that is not circular, rectangular, or square.

06/23/16
20160175001 

Ultrasonic surgical instrument with dual modes


A surgical apparatus comprises a body, a shaft assembly, and an end effector. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with an ultrasonic transducer via an acoustic waveguide that extends through the shaft assembly.

06/23/16
20160174933 

Acoustic wave intraocular pressure detecting device and method thereof


The present invention provides an acoustic wave intraocular pressure detecting device and a method thereof, which uses a driver to generate a vibration wave on the skin or bones. The energy of the vibration wave is transmitted to the orbital bones via the skin and the skeletons.

06/23/16
20160174850 

Received data processing apparatus of photoacoustic tomography


There is provided a received data processing apparatus of photoacoustic tomography including a minimum constitution unit data composition unit that sequentially reads receiving digital signals from first storage units and composes minimum constitution unit data of the acoustic wave of the minimum constitution units by performing a delay-and-sum processing. A second storage unit stores the minimum constitution unit data of the entire region of the specimen, and an image construction unit constructs an image of the specimen based on the minimum constitution unit data stored in the second storage unit.

06/23/16
20160174849 

Object information acquiring apparatus and processing method


Provided is an object information acquiring apparatus having: a receiving unit receiving an acoustic wave generated from an object, which has been irradiated with light, at a plurality of receiving positions and outputting time-series receiving signals; and a processing unit acquiring characteristic information by back-projecting the receiving signals, and the processing unit includes: a unit acquiring, for each receiving position, a dispersion index of light intensity distribution on a back projection spherical surface; a unit acquiring, for each receiving position, an angle range in the back projection based on the dispersion index; and a unit acquiring the characteristic information by back-projecting the receiving signals in the angle range.. .

06/16/16
20160173062 

Duplexer


A duplexer includes a transmission filter with a ladder circuit configuration and a reception filter including a ladder filter portion connected to an antenna terminal and a longitudinally coupled resonator-type surface acoustic wave filter. In the transmission filter, a coupling capacitor is connected between an end portion of an inductor nearer to parallel arm resonators and a wiring line connecting the ladder filter portion to the longitudinally coupled resonator-type surface acoustic wave filter in the reception filter..
Murata Manufacturing Co., Ltd.


06/16/16
20160173061 

Duplexer


A duplexer includes a transmission filter with a ladder circuit configuration and a reception filter. The reception filter includes a series trap element connected to an antenna terminal and a longitudinally coupled resonator-type surface acoustic wave filter.
Murata Manufacturing Co., Ltd.


06/16/16
20160173060 

Acoustic wave device and fabricating the same


An acoustic wave device includes: a substrate; an electrode of an acoustic wave element formed on the substrate; a seed layer formed on the electrode so as to be electrically coupled to the electrode; and a plated layer formed on the seed layer, wherein the seed layer protrudes horizontally further out than the plated layer.. .
Taiyo Yuden Co., Ltd.


06/16/16
20160173057 

Method, system, and resonator circuits and modulating resonators


Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters.
Peregrine Semiconductor Corporation


06/16/16
20160171966 

Active noise cancelling device and actively cancelling acoustic noise


An active noise cancelling device including a sensor configured to convert acoustic signals into first audio signals and a speaker acoustically coupled to the sensor a control stage is configured to control the speaker based on the first audio signals to cause the speaker to produce cancelling acoustic waves that tend to suppress acoustic noise components in the acoustic signals. The control stage includes sigma-delta modulator digital filters..
Stmicroelectronics (shenzhen) R&d Co. Ltd


06/16/16
20160171270 

Acoustic wave fingerprint recognition unit and manufacturing thereof


The present disclosure provides an acoustic wave fingerprint recognition unit including a sensor circuit substrate, a film adhesive layer positioned on the sensor circuit substrate, a piezoelectric material layer positioned on the film adhesive layer and a protection layer positioned on the piezoelectric material layer. The film adhesive layer is formed of a film adhesive material, and the film adhesive material is composed of a film adhesive agent and an organic solvent.
General Interface Solution Limited


06/16/16
20160170539 

Vibrating device and electronic device using same


In an embodiment, a surface of a smartphone 10 is covered with a transparent protective panel 22 supported by rims 16 of a housing 12, and a display device 18 and touch panel 20 are placed in a storage part 14 of the housing 12. The protective panel 22 is constituted by joining a glass plate 22a and resin plate 22b together, and concave parts 30a, 30b are provided on the joining surface side of the resin plate 22b, with piezoelectric vibrating elements 40 placed therein and joined to the glass plate 22a, wherein vibration is transmitted to the surface of the protective panel 22 as surface acoustic waves, demonstrating a haptic function, and also, audible vibration is generated because the modulus of elasticity of the resin plate 22b is lower than that of the glass plate 22a, achieving an operation as a speaker (or receiver)..
Taiyo Yuden Co., Ltd.


06/16/16
20160170082 

Downhole acoustic wave sensing with optical fiber


A technique facilitates geophysical exploration by employing a tool wrapped with an optical fiber. Additionally, an orientation sensor is coupled to the tool and is operable to provide data regarding orientation of the tool.
Schlumberger Technology Corporation


06/16/16
20160170059 

Visco-acoustic reverse-time migration using pseudo-analytical method


In one embodiment, a reverse time migration module is configured with a visco-acoustic wave equation for media with heterogeneous attenuation solved using a pseudo-analytical method. Seismic data is obtained for a zone of interest, and a model is created for the zone of interest.
Pgs Geophysical As


06/16/16
20160169842 

Object information acquiring apparatus and control method therefor


An object information acquiring apparatus comprising a light source; an irradiator of light to an object; an optical controller controlling an optical amount; a holder holding the object; a probe receiving an acoustic wave from the object and outputting an electric signal; a scan controller changing a relative position of the irradiator to the holder in a direction different from an irradiation direction; and an acquirer acquiring information on the interior of the object based on the electric signal is used. The scan controller changes the relative position such that a thickness of acoustic matching member changes according to the relative position in the direction different from the irradiation direction..
Canon Kabushiki Kaisha


06/09/16
20160165331 

Systems and apparatus having top port integrated back cavity micro electro-mechanical system microphones and methods of fabrication of the same


A micro electro-mechanical system (mems) device is provided. The mems device includes: a first substrate having a first surface and a second surface, and a port disposed through the first substrate, wherein the port is configured to receive acoustic waves and wherein the first surface is exposed to an environment outside the mems device; and a diaphragm coupled to and facing the second surface and configured to deflect in response to pressure differential at the diaphragm in response to the received acoustic waves.
Invensense, Inc.


06/09/16
20160164489 

Bulk acoustic wave resonator and filter


A bulk acoustic wave resonator and a filter in which partial thicknesses of protection layers or reflection layers thereof are differently formed are provided. The bulk acoustic wave resonator includes a bulk acoustic wave resonating part comprising a piezoelectric layer, and a reflection layer configured to reflect waves of a resonance frequency generated by the piezoelectric layer based on a signal applied to the bulk acoustic wave resonating part.
Samsung Electro-mechanics Co., Ltd.


06/09/16
20160164488 

Bulk acoustic wave resonator


A bulk acoustic wave resonator may include: a piezoelectric layer including a piezoelectric material; a first electrode disposed on one surface of the piezoelectric layer; a second electrode disposed on the another surface of the piezoelectric layer; and a frame disposed on the one surface of the piezoelectric layer and surrounding the first electrode, wherein the frame is spaced apart from the first electrode by a predetermined gap.. .
Samsung Electro-mechanics Co., Ltd.


06/09/16
20160164487 

Bulk acoustic wave filter


A bulk acoustic wave filter may include: a first resonator part including one or more first bulk acoustic wave resonators connected between a signal port for transmitting or receiving a signal and a node connected to an antenna port; and a second resonator part including one or more second bulk acoustic wave resonators connected between the signal port and a ground, wherein a quality factor (if) value of the one or more first bulk acoustic wave resonators is less than a if value of the one or more second bulk acoustic wave resonators.. .
Samsung Electro-mechanics Co., Ltd.


06/09/16
20160163957 

Surface acoustic wave device and manufacturing method therefor


In a surface acoustic wave device, a conductor pattern is located on a main surface of a piezoelectric substrate and includes a surface acoustic wave element pattern, a pad and a feed line that is electrically connected to the pad and extends up to an outer peripheral edge of the main surface. The piezoelectric substrate and a cover are bonded to each other with a support layer therebetween that includes a frame extending along the outer peripheral edge of the main surface so that a gap is provided between the frame and the outer peripheral edge and includes a pad adjacent portion on the pad.
Murata Manufacturing Co., Ltd.


06/09/16
20160162122 

Acoustic touch apparatus with multi-touch capability


An acoustic touch apparatus that utilizes the transfer of surface acoustic waves from one surface, through the touch substrate, to another surface to enable multi-touch capabilities.. .
Elo Touch Solutions, Inc.


06/09/16
20160161670 

Optical fiber for the reduction of stimulated brillouin scattering in high-power applications


The invention relates to an optical fiber comprising a core and a cladding, wherein the core is made of a glass composition having a near-zero electrostrictive coefficient m11, to reduce the effect of stimulated brillouin scattering (sbs). The invention further relates to a compensation fiber segment for connection to a silica optical fiber, the compensation fiber segment being made of a glass composition having an electrostrictive coefficient that opposes that of the silica optical fiber so that an acoustic wave transmitted to compensation fiber segment from the silica optical fiber will generate an acoustic wave within the compensation fiber segment that is about 180 degrees out of phase with the that acoustic wave transmitted from the silica optical fiber, thereby minimizing the effect of stimulated brillouin scattering..
Schott Corporation


06/09/16
20160157730 

Acoustic wave detection probe and photoacoustic measurement apparatus provided with the same


In an acoustic wave detection probe provided with a light guide section that guides measuring light such that the measuring light is outputted toward a subject and an acoustic wave transducer that detects a photoacoustic wave generated in the subject by the projection of the measuring light, the light guide section includes a homogenizer that flat-tops an energy profile of the measuring light entered from the upstream side of the optical system, a light condensing member that condenses the measuring light transmitted through the homogenizer, and a bundle fiber which includes a plurality of optical fibers and is disposed such that the measuring light transmitted through the light condensing member enters from an entrance end of the bundle fiber.. .
Fujifilm Corporation


06/09/16
20160157729 

Acoustic imaging apparatus


An acoustic imaging apparatus includes an image forming unit including a transducer array that includes a downwardly recessed portion on which a plurality of transducers, which include reception surfaces that receive acoustic waves generated by a subject, are arranged. The image forming unit forms an image based on outputs from the transducers.
Canon Kabushiki Kaisha


06/02/16
20160154495 

Surface acoustic wave touch screen and touch display device


A surface acoustic wave touch screen (10) and a touch display device are disclosed. The surface acoustic wave touch screen (10) includes a screen (11) and a driver module and the screen (11) is provided on its surface with: a surface acoustic wave emitter (13) configured to emit first surface acoustic wave signals in a first direction and emit second surface acoustic wave signals in a second direction upon being driven by periodic electrical signals provided by the driver module; a first reflecting unit (12a) and a second reflecting unit (12c); a third reflecting unit (12b) and a fourth reflecting unit (12b); a first receiving transducer (14) and a second receiving transducer (15).
Hefei Xinsheng Optoelectronics Technology Co., Ltd.


06/02/16
20160151751 

Magnetic stirrer with saw sensor


The invention relates to a magnetic stirrer (1) having a stirrer drive (2), a heating plate (3) serving as a surface on which a stirring vessel (4) is positioned, and a stirring rod (6) which can be introduced into the stirring vessel (4), can be or is driven by the stirrer drive (2) and comprises a magnet (6a), the stirring rod (6) and/or the magnet (6a) having and/or containing at least one saw sensor (7) (surface acoustic wave sensor).. .
Ika - Werke Gmbh & Co. Kg


06/02/16
20160150990 

Photoacoustic apparatus, subject information acquisition method, and program


A photoacoustic apparatus includes a light irradiation unit configured to irradiate a subject with pulsed light a plurality of times, a reception unit configured to receive photoacoustic waves generated by the plurality of times of irradiation of the subject with the pulsed light from the light irradiation unit, and output a plurality of signals corresponding to the plurality of times of light irradiation, a blood information acquisition unit configured to acquire information on an amount of blood of the subject, and a subject information acquisition unit configured to acquire subject information of a target region in the subject based on the plurality of signals, wherein the subject information acquisition unit acquires the subject information based on a plurality of signals acquired in a common period in each of repeated cycles of fluctuation of the amount of blood.. .
Canon Kabushiki Kaisha


06/02/16
20160150974 

Photoacoustic imaging method and photoacoustic imaging apparatus


A photoacoustic imaging method that enables photoacoustic images to be displayed at high speed is provided. The photoacoustic imaging method scans a subject with a light beam, detects acoustic waves generated within the subject due to the scanning of light to obtain acoustic wave detected signals, and generates volume data that represent three dimensional photoacoustic images of the subject based on the acoustic wave detected signals.
Fujifilm Corporation


06/02/16
20160150973 

Subject information acquisition apparatus


A subject information acquisition apparatus includes receiving units that are arranged along an arc shape and configured to receive a photoacoustic wave generated in a subject in response to light from a light source and convert the photoacoustic wave into a time-series electric signal, a driving unit configured to scan the receiving units, and a processing unit configured to acquire information about an inside of the subject. The light source emits light at a certain timing.
Canon Kabushiki Kaisha


06/02/16
20160150972 

Subject information acquiring apparatus


A subject information acquiring apparatus includes a light source configured to radiate optical pulses coded by a predetermined number of pulse streams to a subject, a probe having a converting element configured to receive photoacoustic waves occurring from the subject, and configured to convert the received photoacoustic waves to electrical signals, and an information acquiring unit configured to decode a predetermined number of signals of the electrical signals output from the converting element and acquire characteristic information on the subject based on the decoded electrical signals, wherein the relative positions of the converting element included in the probe and the subject are changed before the radiation of the predetermined number of optical pulse streams completes, and the electrical signals to be decoded are partially redundant before and after the change of the relative positions of the converting element and the subject.. .
Canon Kabushiki Kaisha


06/02/16
20160150971 

Signal processing method, acoustic wave processing apparatus, and recording medium


A signal processing method for a plurality of reception signals, wherein a plurality of reception elements are each configured to receive acoustic waves and output a reception signal at a plurality of sampling times, includes generating a representative value signal from the plurality of reception signals, except for reception signals having amplitudes that are larger than a threshold value among the plurality of reception signals at each sampling time, generating a plurality of differential signals indicating differences between the plurality of reception signals obtained at each sampling time and the representative value signal, and generating image data using the plurality of differential signals.. .
Canon Kabushiki Kaisha


06/02/16
20160150969 

Photoacoustic apparatus, subject-information acquisition method, and program


A photoacoustic apparatus according to the present invention includes an electrical stimulation unit configured to apply a voltage to a subject while light irradiation is being performed a plurality of times, and a processing unit configured to acquire, among a plurality of signals, subject information using at least part of signals corresponding to photoacoustic waves generated in a period from an extraction start timing determined in accordance with an application start timing of the voltage to when a first time period starting from the application start timing and ending at an application end timing of the voltage passes, while not using a signal corresponding to a photoacoustic wave generated outside the period from the extraction start timing to when the first time period passes.. .
Canon Kabushiki Kaisha


06/02/16
20160150968 

Object information acquiring apparatus


An object information acquiring apparatus includes: a light source that generates a first light beam; a receiving unit that includes an irradiating unit emitting the first light beam so as to be directed to a predetermined optical focusing region and an acoustic wave detecting unit detecting a first acoustic wave generated when the first light beam is emitted to an object; a scanning unit that performs relative movement between the object and the receiving unit so that the receiving unit follows a concave or convex shape of a surface of the object while the first light beam is emitted and the first acoustic wave is detected; and an acquiring unit that acquires characteristics information on the optical focusing region of the object based on a detection result obtained by the acoustic wave detecting unit.. .
Canon Kabushiki Kaisha


06/02/16
20160150967 

Photoacoustic device and control photoacoustic device


A photoacoustic device comprises a light irradiation unit configured to irradiate a subject with light; an acoustic wave detector configured to detect an acoustic wave generated inside the subject and convert the detected acoustic wave into an electric signal; a first photodetector configured to acquire information relating to an intensity of light that has propagated inside the subject and leaked to the outside of the subject; an information acquisition unit configured to acquire information on an interior of the subject on the basis of the electric signal; and a control unit configured to control the light with which the subject is irradiated on the basis of the information relating to the intensity of light which has been acquired by the first photodetector.. .
Canon Kabushiki Kaisha


05/26/16
20160146964 

Monitoring matrix acidizing operations


An acoustic logging tool is disposed in a wellbore during an acidizing operation. Measurements are made using the acoustic logging tool on a region of a formation penetrated by the wellbore and being subjected to the acidizing operation.
Schlumberger Technology Corporation


05/26/16
20160146715 

Dust sensor and electronic product using the same


A dust sensor includes a multi-wavelength light source, a receiver, and a controller. The light source emits light of different wavelengths.
Samsung Display Co., Ltd.


05/26/16
20160146661 

Fiber optic distributed vibration sensing with wavenumber sensitivity correction


An apparatus and method for correcting the wavenumber sensitivity of a distributed fiber optic sensor are disclosed. The distributed fiber optic sensor is deployed in a region of interest to measure a characteristic of an incident acoustic wavefield.
Schlumberger Technology Corporation


05/26/16
20160143802 

Medical device


A device for the treatment of pathologies related to accumulation of visceral fat and for the treatment of efp in all its stages, comprising ‘clever’ handles for generation of acoustic waves, vacuum-assisted suction and cooling.. .
Promoitalia Group S.p.a.


05/26/16
20160143659 

Ultrasonic surgical instrument with blade cooling through retraction


A surgical apparatus comprises a body, a shaft assembly, an end effector, and a blade cooling system. The shaft assembly couples the end effector and the body together.
Ethicon Endo-surgery, Inc.


05/26/16
20160143542 

Minimally invasive optical photoacoustic endoscopy with a single waveguide for light and sound


An endoscopic device for photoacoustic imaging, including a multimode optical fiber having a distal end and a proximal end, a light source to provide a light beam to the proximal end of the multimode optical fiber, a transducer to capture acoustic waves that are emitted from the proximal end of the multimode optical fiber, and a processing device to generate a photoacoustic image based on data from the captured acoustic waves captured by the transducer, wherein the distal end of the multimode optical fiber is configured to be inserted into a sample, the sample generating the acoustic waves by a photoacoustic effect.. .
Ecole Polytechnique Fédérale De Lausanne (epfl)


05/19/16
20160142829 

Integrated package forming wide sense gap micro electro-mechanical system microphone and methodologies for fabricating the same


A micro electro-mechanical system (mems) microphone is provided. The microphone includes: a package substrate having a port disposed through the package substrate, wherein the port is configured to receive acoustic waves; and a lid coupled to the substrate and forming a package.
Invensense, Inc.


05/19/16
20160142826 

Voice coil unit, electro-acoustic transducer, and headphone set


A voice coil unit for a dynamic electro-acoustic transducer is disposed in a magnetic circuit, outputs acoustic waves through driving of a diaphragm in response to digital signals, and includes coils that are each composed of a multi-strand wire and receive different digital signals.. .
Kabushiki Kaisha Audio-technica


05/19/16
20160142041 

Acoustic wave device, transceiver device, and mobile communication device


An acoustic wave device includes: an acoustic wave chip including an acoustic wave element formed therein; a multilayered substrate including the acoustic wave chip mounted on an upper surface thereof; a first ground terminal formed on a lower surface of the multilayered substrate and electrically coupled to a ground electrode of the acoustic wave chip; a second ground terminal formed on the lower surface; a signal terminal formed on the lower surface and electrically coupled to a signal electrode of the acoustic wave chip; and a shield layer formed at least on the upper surface, on the lower surface, or between the lower surface and the upper surface of the multilayered substrate so as to overlap with at least a part of the acoustic wave chip, not electrically coupled to the first ground terminal in the multilayered substrate, and electrically coupled to the second ground terminal.. .
Taiyo Yuden Co., Ltd.


05/19/16
20160139251 

Object information acquiring apparatus and control method thereof, and acoustic signal acquiring apparatus and control method thereof


Provided is an object information acquiring apparatus having: a receiver in which a plurality of receiving elements to receive acoustic signals based on an acoustic wave propagated from an object is disposed on a two-dimensional surface, the plurality of receiving elements being divided into a plurality of receiving element groups including at least one receiving element respectively; a corrector that corrects signals received by the receiver; and a processor that acquires characteristic information in the object using the signals corrected by the corrector, wherein the receiver receives the acoustic signals for each of the plurality of receiving element groups with a time difference, and acquires the received signals, and the corrector corrects a time-based deviation.. .
Canon Kabushiki Kaisha


05/19/16
20160138095 

Molecular manipulation system and method


A molecular manipulation system for investigating molecules, having a sample holder constructed to hold a sample comprising a plurality of molecules attached on one side to a surface in the sample holder and on another side attached to a microbead of a plurality of microbeads. The system having; an acoustic wave generator to generate an acoustic wave exerting a force on the microbeads in the sample; and a detector device to detect a response of the plurality of microbeads in the sample on the force exerted by the acoustic wave to investigate the molecules attached to the microbeads..
Stichting Vu-vumc


05/19/16
20160137167 

Ultrasonically clearing precipitation


A system for clearing precipitation from a window comprises one or more transducers (1-8) fixed to the window. The transducers are driven by a generator (13) to produce surface acoustic waves that propagate through the window.
Echovista Gmbh


05/19/16
20160135689 

Photoacoustic image-generating apparatus and light source control method


At least a tip portion of a puncture needle 15 is inserted into a subject. The puncture needle 15 includes a light guide member which guides light from a laser unit 13, and a light emission unit which is provided in the vicinity of the tip portion and emits light guided by the light guide member, and generates a photoacoustic wave caused by light from the light emission unit in the tip portion.
Fujifilm Corporation


05/19/16
20160135688 

Object information acquiring apparatus


Provided is an object information acquiring apparatus including: a holding member that has a curvature and holds an object; a conversion element that receives an acoustic wave propagating from the object via the holding member and outputs an electrical signal; a driving unit that moves at least one of the conversion element and the holding member so that an acoustic wave reception surface of the conversion element is not parallel to a tangential plane of the holding member at a position at which a normal line of the acoustic wave reception surface drawn from the conversion element crosses the holding member; and an information processor that acquires specific information inside the object using the electrical signal.. .
Canon Kabushiki Kaisha


05/12/16
20160134257 

Surface acoustic wave device having end-to-end combinable selectable electrode sub-elements


A described surface acoustic wave device includes a piezoelectric substrate and a configurable electrode assembly. The assembly includes: an array of n rows of m electrically isolated elongated electrode sub-elements arranged end-to-end in columns; a first signal bus proximate to the first row of the n rows; a first matrix of row addressable switches configured to electrically couple the first signal bus with a respective electrode sub-element of the first row of electrode sub-elements; a second signal bus proximate to the nth row of the n rows; a second matrix of addressable row switches configured to electrically couple the second signal bus with a respective electrode sub-element of the nth row of electrode sub-elements; and a plurality of addressable column switches, each addressable column switch respectively configured to electrically couple an electrode of a column of the m columns with an end-to-end adjacent electrode of the same column..
Elwha Llc


05/12/16
20160134256 

Surface acoustic wave device having selectable electrode elements


Described embodiments include a surface acoustic wave device, method, and apparatus. The device includes a piezoelectric substrate and a configurable electrode assembly.
Elwha Llc


05/12/16
20160134255 

Surface acoustic wave device and apparatus including the same


A surface acoustic wave device includes: a piezoelectric substrate; an interdigital transducer disposed on the piezoelectric substrate, the interdigital transducer being configured to transduce a driving signal into a surface acoustic wave, and transduce a reflected surface acoustic wave into a response signal; a reflector arranged on the piezoelectric substrate and configured to reflect the surface acoustic wave input from the interdigital transducer; a first antenna disposed on the piezoelectric substrate, the first antenna extending radially from the interdigital transducer, and the first antenna being configured to receive the driving signal and transmit the response signal; and a second antenna disposed on the piezoelectric substrate, the second antenna extending radially from the interdigital transducer to be asymmetrical with respect to the first antenna, and the second antenna being configured to receive the driving signal and transmit the response signal.. .
Samsung Electro-mechanics Co., Ltd.


05/12/16
20160134009 

Planar inverted-f wing antenna for wireless culinary appliances


A planar inverted-f wing antenna (pifwa) device, system, and method used for commercial and residential induction cooking tops, ovens, combo-steamers, and pressure cookers. The outline of the pifwa is an isosceles triangle with a truncated vertex end opposite the base side.
Knowles Capital Formation Inc.


05/12/16
20160133821 

Surface acoustic wave device having matrices of combinable selectable electrode sub-elements


Described embodiments include a surface acoustic wave device, method, and apparatus. The device includes a piezoelectric substrate and a configurable electrode assembly.
Elwha Llc


05/12/16
20160133820 

Surface acoustic wave device having combinable selectable electrode sub-elements


Described embodiments include a surface acoustic wave device, method, and apparatus. The device includes a piezoelectric substrate and a configurable electrode assembly.
Elwha Llc




Acoustic Wave topics: Acoustic Wave, Piezoelectric, Transducer, Wave Device, Electrical Signal, Extensional, Magnetic Field, Extensions

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