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Acoustic Wave patents

      

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




new patent System and providing related content at low power, and computer readable recording medium having program recorded therein
Provided is a system for providing related content comprising the steps of: sensing a sound output from a content reproducing device for reproducing content (referred to as “main content”); converting the sensed sound into digital data; extracting an acoustic wave id from the digital data; selecting related content corresponding to the acoustic wave id; and displaying the related content in an image and/or speech by a mobile receiver.. .
Soundlly Inc.


new patent Acoustic wave filter, duplexer, and module
An acoustic wave filter includes: series resonators connected in series; and one or more parallel resonators connected in parallel, wherein at least two series resonators and a parallel resonator therebetween are divided into a first divided resonator, which includes a piezoelectric substance sandwiched between a pair of electrodes in a c-axis orientation direction, and a second divided resonator, which includes another piezoelectric substance sandwiched between another pair of electrodes so that the another pair of electrodes in the c-axis orientation direction has an electric potential opposite to that of the electrodes of the first divided resonator in the c-axis orientation direction, a first group including the first divided resonators and a second group including the second divided resonators are interconnected in parallel between two nodes, and the first divided resonators and the second divided resonators of the at least two series resonators are not electrically interconnected at the two nodes.. .
Taiyo Yuden Co., Ltd.


new patent Acoustic window
An acoustic window for passage of desired acoustic waveforms therethrough is provided. The acoustic window includes at least a pair of structural septa.
Rohr, Inc.


new patent Acoustic source fragmentation system for breaking ground material
A system for fragmenting material includes an energy source, an acoustic transmitter coupled to the energy source and having a unit acoustic source configured to emit an acoustic wave through a volume of ground material, a signal reflecting device, and a controller configured to engage the acoustic transmitter such that the unit acoustic source emits an acoustic locating wave toward the signal reflecting device. The controller is configured to engage the acoustic transmitter such that the unit acoustic source emits the acoustic wave toward a target location, and the acoustic wave is configured to fracture the volume of ground material at the target location..
Elwha Llc


new patent Submersible pump monitoring
In order to address the above noted problems, embodiments of the present invention use distributed acoustic sensing to monitor the fluid level in an esp activated well so as to monitor the condition and performance of the esp. Embodiments of the invention use the esp as an acoustic source in order to monitor the annulus fluid level within the well and to monitor the frequency of the esp.
Silixa Ltd.


Methods employing phase state analysis for use in speech synthesis and recognition
A computer-implemented method for automatically analyzing, predicting, and/or modifying acoustic units of prosodic human speech utterances for use in speech synthesis or speech recognition. Possible steps include: initiating analysis of acoustic wave data representing the human speech utterances, via the phase state of the acoustic wave data; using one or more phase state defined acoustic wave metrics as common elements for analyzing, and optionally modifying, pitch, amplitude, duration, and other measurable acoustic parameters of the acoustic wave data, at predetermined time intervals; analyzing acoustic wave data representing a selected acoustic unit to determine the phase state of the acoustic unit; and analyzing the acoustic wave data representing the selected acoustic unit to determine at least one acoustic parameter of the acoustic unit with reference to the determined phase state of the selected acoustic unit.
Lessac Technologies, Inc.


Bezel-less acoustic touch apparatus
An acoustic touch apparatus is provided that includes a substrate capable of propagating surface acoustic waves, such as rayleigh-type or love-type waves. The substrate has a front surface, a back surface, and a curved connecting surface formed between the front surface and the back surface.
Elo Touch Solutions, Inc.


Acousto-electromagnetic acoustic sensing
In some embodiments, an apparatus, method, and a system may operate to include an aem sensor configured to generate an electromagnetic wave into a geologic formation. The aem sensor is further configured to receive a reflected electromagnetic wave from the formation.
Halliburton Energy Services, Inc.


Low loss acoustic wave sensors and tags and high efficiency antennas and methods for remote activation thereof
Enhanced surface acoustic wave (saw) sensors and saw sensor-tag wireless interface devices, including low loss devices, devices that enable enhanced use of time diversity for device identification, and devices suitable for use in band-limited environments (such as ism band) and for use in ultra-wideband applications are disclosed. Antennas for use with both saw sensors and/or tags, and wireless transceiver systems also are disclosed, including antennas suitable for operation in conductive media and in highly metallic environments, said antennas being used to activate and read said saw sensors and/or tags.
Sensanna Incorporated


Fuel injector
A fuel injection system for a gas turbine engine (10) comprises; a pilot fuel injector section (22, 23) and a main airblast fuel injector section (25, 26, 27, 28, 29), the main airblast fuel injector section having an aft end (29) facing a combustion chamber (30). A surface of the injection system exposed to air flow through an injection system is non-axisymmetric or non-planar in a reference circumferential plane and/or is configured to generate controlled and varying acoustic impedance at or adjacent the aft end where, in use, the air flow collides with an oncoming acoustic wave..
Rolls-royce Plc


Marking of the tool center and of the orientation of an acoustic probe in a reference frame, by ultrasound method

A process for marking the real position and real orientation of a tool in relation to the manipulator arm of a robot. The process utilizes the amplitude measurements of acoustic signals and the flight time measurement of the acoustic waves emitted by an acoustic probe of the tool and reflected by the fixed reference elements.
Airbus Group Sas

Vented acoustic enclosures and related systems

An enclosure for a speaker transducer can have a front housing member and a rear housing member. Some enclosures position the speaker transducer between the front housing member and the rear housing member, and spaced apart from the rear housing member to define a rear chamber positioned between the speaker transducer and the rear housing member.
Apple Inc.

Apparatus

Provided is an apparatus for acquiring object information, the apparatus including: first and second laser output unit outputting first and second pulsed laser; a laser controlling unit configured to control each laser output unit; a first or second detecting unit configured to detect an emission timing of laser and output a first or second detection signal; a probe configured to receive an acoustic wave from an object being irradiated with the laser; and a signal processing unit configured to acquire specific information of the object, based on the acoustic wave. The laser controlling unit controls output of at least one of the laser output units so as to decrease a time difference between subsequent first and second pulsed lasers to be output..
Canon Kabushiki Kaisha

Surface acoustic wave filter

A longitudinally coupled resonator type surface acoustic wave filter includes a high-acoustic-velocity member, a low-acoustic-velocity film provided on the high-acoustic-velocity member, a piezoelectric film provided on the low-acoustic-velocity film, a plurality of interdigital transducers provided on the piezoelectric film and along a propagation direction of a surface acoustic wave and each including a plurality of electrode fingers, and reflectors arranged such that the interdigital transducers are interposed therebetween from both sides in the propagation direction of the surface acoustic wave. An electrode finger pitch is uniform or substantially uniform in each of the interdigital transducers.
Murata Manufacturing Co., Ltd.

Multiferroic surface acoustic wave antenna

A method of fabricating a multiferroic antenna element may include providing a electroelastic substrate to transform mechanical oscillations into an acoustic wave, providing a resonator assembly on a surface of the electroelastic substrate where the resonator assembly includes a plurality of magnetoelastic resonators that transform an electromagnetic wave into mechanical oscillations corresponding to a frequency of the electromagnetic wave, and providing an interdigitated electrode assembly at a portion of the electroelastic substrate to convert the acoustic wave into an electrical signal preserving information associated with the frequency of the electromagnetic wave.. .

Acoustic wave element, duplexer and communication device

An elastic wave element has a piezoelectric substrate; an excitation electrode which is located on an upper surface of the piezoelectric substrate and generates an acoustic wave, and two reflectors which are located on the upper surface of the piezoelectric substrate and sandwich the excitation electrode in the propagation direction of the acoustic wave. The excitation electrode has a main region located between the two end parts of the propagation direction and outer regions located on two sides of the main region.
Kyocera Corporation

Separation of up-going and down-going wavefields including the direct arrival

At least some embodiments are directed to a system. The system includes a processor and a memory coupled to the processor.
Pgs Geophysical As

Thrombolysis device and operating a thrombolysis device

According to various embodiments, there is provided a thrombolysis device including a catheter configured to be inserted into a blood clot; a treatment transducer coupled to the catheter, the treatment transducer configured to transmit acoustic waves; a measurement transducer coupled to the catheter, the measurement transducer configured to transmit further acoustic waves and further configured to receive acoustic echoes, the acoustic echoes being reflections of the further acoustic waves from a boundary of the blood clot, wherein the measurement transducer is further configured to provide a measurement output; a determination circuit configured to determine at least one of a viscosity of blood in a vicinity of the measurement transducer or a volume of the blood clot, based on the measurement output; and a control circuit configured to generate control signals for controlling the treatment transducer, based on at least one from the group consisting of the viscosity of blood in the vicinity of the measurement transducer, the volume of the blood clot and a temperature measurement of the blood clot.. .
Agency For Science, Technology And Research

Object information acquiring apparatus, object information acquiring method, and storage medium

An object information acquiring apparatus is used, which includes: a conversion element receiving an acoustic wave from an object irradiated with light with a plurality of wavelengths and converts the acoustic wave into an electric signal; a memory storing a lookup table or a relational expression that represents a relation between the wavelength of light and a transformation coefficient based on an intensity of an acoustic wave from a standard sample with a known coefficient relating to light absorption and the coefficient for the standard sample; a transformation coefficient acquiring unit that acquires the transformation coefficient from the memory; and a signal processing unit acquiring specific information on the object, using an electric signal and the transformation coefficient.. .
Canon Kabushiki Kaisha

Surface acoustic wave device and filter

A surface acoustic wave device includes: comb-shaped electrodes each including electrode fingers and dummy electrode fingers; and additional films located to cover gaps between tips of the electrode fingers of one of the comb-shaped electrodes and tips of the dummy electrode fingers of the other, wherein each of the additional films overlap with at least one of the electrode fingers and the dummy electrode fingers located lateral to the corresponding gap in a first direction in which the electrode fingers extend or in a second direction intersecting with the first direction, and a distance g of the gap is 0<g≦1.0λ and a film thickness h of the additional films is 0<h/λ≦(0.146g+0.694076)×ρ2/ρ1 where λ is a wavelength of an acoustic wave, ρ1 is a density of a material of the additional films, and ρ2 is a density of aluminum oxide.. .
Taiyo Yuden Co., Ltd.

Bulk acoustic wave resonator and filter including the same

A bulk acoustic wave resonator includes a substrate, a first electrode and a second electrode disposed on the substrate, and a piezoelectric layer disposed between the first electrode and the second electrode. At least one of the first electrode and the second electrode includes an alloy of molybdenum and tantalum..
Samsung Electro-mechanics Co., Ltd.

Flow sensing device

A non-invasive, hands-free “water flow device” senses when water is and is not flowing and can give the user a visual display, of the real time water flow duration and quantity of water used by a shower (or other water dispensing device), for example. The water flow device may use an acoustic transducer (e.g., a microphone) to sense the acoustic waves generated by the flow of water during a shower.
Watertally, Inc.

Optical coherence photoacoustic microscopy

A system and method for providing an optical coherence photoacoustic (oc-pam) microscopy. An oc-pam microscope includes a light source that outputs light, a scanner, a detector, a transducer, and an image processing module.
Northwestern University

Apparatus and methods for treating root canals of teeth

Apparatus and methods for endodontic treatment of teeth provide effective cleaning of organic material (such as pulp and diseased tissue) from the root canal system. In an embodiment, a compressor system generates high pressure liquid (e.g., water) that flows through an orifice to produce a high-velocity collimated jet of liquid.
Sonendo, Inc.

Acoustic wave processing apparatus, signal processing method, and program for acoustic wave processing apparatus

There are included a data processing step of selecting two or more pieces of data from among a plurality of pieces of first element data or a plurality of pieces of first reception data generated by subjecting the pieces of first element data to phasing addition processing, and performing superimposition processing on the two or more pieces of data, a region-of-interest setting step of setting a region of interest in an imaging area, and a processing condition changing step of changing a processing condition in the data processing step, in a case where the region of interest is set in the region-of-interest setting step, on the basis of information on the set region of interest.. .
Fujifilm Corporation

Acoustic wave processing apparatus, signal processing method, and program for acoustic wave processing apparatus

There are included a data-processing-unit that selects two or more pieces of data from among a plurality of pieces of first element data or from among a plurality of pieces of first reception data generated by subjecting the pieces of first element data to phasing addition processing and that performs superimposition processing on the two or more pieces of data to generate processed data, an image-generation-unit that generates an acoustic wave image on the basis of the processed data, a setting-information-holding-unit that holds setting information on at least one of a transmitting-unit, a receiving-unit, the data-processing-unit, the-image-generation-unit, and a display-control-unit, and a setting-changing-unit that, in a case where a measurement condition is changed, changes setting of at least one of the transmitting-unit, the receiving-unit, the data-processing-unit, the image-generation-unit, and the display-control-unit on the basis of the held setting information, the setting being related to the acoustic wave image generated on the basis of the processed data.. .
Fujifilm Corporation

Sound generator

An sound generator is disclosed. The sound generator, includes: a housing having a sound opening for radiating acoustic waves; at least one brace spanning across the sound opening, the brace having two ends both fixed on the housing around the sound opening; and a dust screen completely covering the sound opening, the dust screen including a first part located outside the sound opening and a second part covering the sound opening.
Aac Technologies Pte. Ltd.

Encapsulated bulk acoustic wave (baw) resonator device

An electronic package includes a die mounted on a first substrate; a second substrate disposed over the first substrate; a pillar wall extending between a surface of the die and an opposing surface of the second substrate to provide separation between the die and the second substrate, the pillar wall extending about a perimeter bounding the die and enclosing a cavity between the first and second substrates; and an encapsulating layer disposed over the first and second substrates and around the pillar wall. Substantially none of the encapsulating layer ingresses into the cavity..
Avago Technologies General Ip (singapore) Pte. Ltd.

Systems and methods for ultrasonically induced tactile stimuli in an entertainment system

The present disclosure provides systems and methods for generating a haptic sensation, such as a tactile stimuli, using parametric ultrasound on a site of an object. An entertainment device may be associated with a parametric ultrasonic transmitters subsystem configured to transmit first and second ultrasonic pulses that intersect proximate a site of a user and generate an acoustic wave at a beat frequency of the first and second ultrasonic pulses.
Elwha Llc

Photoacoustic microscope apparatus

A photoacoustic microscope apparatus includes a light source that emits excitation light which generates photoacoustic waves, an objective lens which focuses the excitation light on a specimen, a scanning unit which moves a focused position of the excitation light on the specimen, a photoacoustic-wave detecting unit which has a sensor unit that detects a photoacoustic wave generated, and an image constructing unit which constructs an image based on data from the photoacoustic-wave detecting unit. For the sensor unit, an angle of a range which is capable of receiving the photoacoustic wave incident on the sensor unit is larger than an angle corresponding to a numerical aperture on a side illuminated of the objective lens..
Olympus Corporation

Dynamic acoustic waveguide

A loudspeaker and a method of operation which allow for the production and emphasis of extremely low bass tones. The loudspeaker generally is formed from a loudspeaker driver cone of conventional type which is placed in a very small enclosure with two waveguides attached thereto.

Audio devices and related methods for acquiring audio device use information

Audio devices and related methods are disclosed. An audio device includes audio inputs configured to receive audio signals from a media player, speaker elements configured to convert the audio signals to acoustic waves, and control circuitry.
Skullcandy, Inc.

Bulk acoustic wave resonator comprising multiple acoustic reflectors

A bulk acoustic wave (baw) resonator includes: a plurality of acoustic reflectors disposed in a substrate; a lower electrode disposed over the plurality of acoustic reflectors; a piezoelectric layer disposed over the lower electrode; and a plurality of upper electrodes, disposed over the piezoelectric layer. One of the plurality of upper electrodes is formed over a respective one of the plurality of acoustic reflectors.
Avago Technologies General Ip (singapore) Pte. Ltd.

Non-touch control apparatus and control method thereof

An embodiment of the present disclosure provides a non-touch control apparatus, including: a main control integrated circuit, an ultrasonic generating circuit, a first transducer device and a second transducer device, wherein the main control integrated circuit is configured to, in response to a condition that the device is in a non-touch control mode, switch on the ultrasonic generating circuit so as to control the second transducer device to send out a first acoustic wave signal, the first transducer device is configured to be capable of receiving a second acoustic wave signal including the first acoustic wave signal, converting the second acoustic wave signal into a first electric signal, and outputting the first electric signal, wherein, the main control integrated circuit is configured to be capable of receiving a second electric signal derived from the first electric signal.. .
Beijing Boe Multimedia Technology Co., Ltd.

Spread spectrum coded waveforms in ultrasound diagnostics

Techniques, systems, and devices are disclosed for ultrasound diagnostics using spread spectrum, coherent, frequency- and/or phase-coded waveforms. In one aspect, a method includes synthesizing individual orthogonal coded waveforms to form a composite waveform for transmission toward a biological material of interest, in which the synthesized individual orthogonal coded waveforms correspond to distinct frequency bands and include one or both of frequency-coded or phase-coded waveforms; transmitting a composite acoustic waveform toward the biological material of interest, where the transmitting includes transducing the individual orthogonal coded waveforms into corresponding acoustic waveforms to form the composite acoustic waveform; receiving acoustic waveforms returned from at least part of the biological material of interest corresponding to at least some of the transmitted acoustic waveforms that form the composite acoustic waveform; and processing the received returned acoustic waveforms to produce an image of at least part of the biological material of interest..
Decision Sciences International Corporation

Photoacoustic device

A photoacoustic device comprises a light source configured to generate first and second lights; an irradiation unit configured to generate a first acoustic wave from an object including a contrast agent by irradiating the object with the first light, and then bleach the contrast agent by irradiating the object with the second light and generate a second acoustic wave from the object by irradiating the object with the first light after bleaching; a receiving unit configured to output a first signal upon receiving the first acoustic wave and output a second signal upon receiving the second acoustic wave; and an acquisition unit configured to acquire first information based on the first signal, and acquire second information based on the second signal.. .
Canon Kabushiki Kaisha

Automobiles, diagnostic systems, and methods for generating diagnostic data for automobiles

Automobiles, automobile diagnostic systems, and methods for generating diagnostic data for automobiles are provided. A method for generating diagnostic data for an automobile includes capturing with a sound sensor an acoustic waveform produced by an automobile component.
Gm Global Technology Operations Llc

Acoustic wave processing device, signal processing acoustic wave processing device, and program

The acoustic wave processing device includes a phasing addition unit which performs phasing addition on respective pieces of first element data with different elements as a reference to generate a plurality of pieces of first reception data, a reception data storage unit which stores first reception data, a reception data generation unit which superimposes two or more pieces of first reception data to generate second reception data, and a processing condition setting unit which sets the number of times of superimposition of first reception data. In a cine-reproduction mode, the reception data generation unit superimposes the set number of pieces of first reception data to generate second reception data..
Fujifilm Corporation

Acoustic wave processing device, signal processing acoustic wave processing device, and program

The acoustic wave processing device includes a data processing unit which performs superimposition processing on first element data or first reception data generated by performing phasing addition on the first element data to generate processed data, an image generation unit which generates a b mode image based on the first element data and the processed data, a bloodstream image generation unit which generates a bloodstream image based on bloodstream information included in the first element data, a region setting unit which sets a bloodstream image region, a processing region setting unit which sets a region for processing in the data processing unit based on information relating to the bloodstream image region, and a display image generation unit which generates a synthesized image of the b mode image and the bloodstream image.. .
Fujifilm Corporation

Photoacoustic imaging apparatus and photoacoustic imaging method

A photoacoustic imaging apparatus includes holding members configured to hold a subject, an acoustic wave conversion unit configured to receive an acoustic wave generated by irradiating the subject, which is held by the holding members, with light from a light source and convert the acoustic wave into an electric signal, a processing unit configured to generate image data from the electric signal, and an imaging unit configured to capture an optical pattern generated on a light diffusion member by emitting the light to the light diffusion member arranged on a surface of a side where the subject is irradiated with the light in the holding members where the holding members contact the subject in holding the subject, wherein the processing unit calculates light absorption coefficient distribution in the subject based on the optical pattern captured by the imaging unit and the electric signal acquired by the acoustic wave conversion unit.. .
Canon Kabushiki Kaisha

Object information acquiring apparatus

An object information acquiring apparatus is used which includes: a light source controller that controls radiation of light from a light source; a detector that detects an acoustic wave generated by an object irradiated with the light; an information processor that acquires characteristics information on an inside of the object using the acoustic wave; and a scan controller that changes a relative position between the detector and the object, this object information acquiring apparatus further including: a power source that supplies electricity for use by the object information acquiring apparatus; and a power source controller that controls activation timings for the light source controller and the scan controller so as to prevent a current value of a current flowing through the object information acquiring apparatus from exceeding an ampacity of the power source.. .
Canon Kabushiki Kaisha

Tilted mems

A micro-electro-mechanical system (mems) optical sensor, method of detecting sound using the mems optical sensor and method of manufacturing. The mems optical sensor including a substrate having a base portion and a vertically extending support portion.
Apple Inc.

Acoustic device

An acoustic device that has a neck loop that is constructed and arranged to be worn around the neck. The neck loop includes a housing with a first acoustic waveguide having a first sound outlet opening, and a second acoustic waveguide having a second sound outlet opening.
Bose Corporation

Method and system for processing acoustic waveforms

Method for processing acoustic waveforms comprises acquiring acoustic waveforms in a borehole traversing a subterranean formation and transforming at least a portion of the acoustic waveforms to produce frequency domain signals. Then model dispersion curves, modes spectrum or waveforms are generated based on an anisotropic borehole-formation model having a set of anisotropic and geometrical borehole-formation parameters and by specifying governing equations and computational mesh based functional basis.

Water recovery device

A water recovery device includes: an exhaust gas pipe that is connected to a combustion device; a water generation unit that generates water by cooling exhaust gas in the exhaust gas pipe to condense water vapor in the exhaust gas; and a water container that stores water generated by the water generation unit. The water generation unit includes: an acoustic-wave generator that generates acoustic waves by absorbing heat from the exhaust gas pipe and giving the heat to working fluid, which transmits acoustic waves by oscillating, to cause the working fluid to oscillate; a transmission pipe that is internally filled with the working fluid and transmits acoustic waves generated by the acoustic-wave generator; and a cold-heat generator that generates cold heat to supply the cold heat to the exhaust gas pipe by receiving acoustic waves transmitted through the transmission pipe and giving heat to the acoustic waves..
Ngk Insulators, Ltd.

In-situ ultrasonic measuring system for natural gas flux at the hydrocarbon seeps at the seafloor

An in-situ and on-line acoustic measuring system for natural gas flux at the hydrocarbon seeps at a seafloor includes a seepage tent and a flow measuring channel. The flow measuring channel includes a lower bubble breaking channel, an ultrasonic transducer measuring channel and an upper bubble breaking channel.
Guangdong University Of Technology

Acoustophoretic droplet handling in bulk acoustic wave devices

An acoustofluidic system comprises a substrate (10) having an essentially rectangular recess with side walls (33), wherein the recess provides a microfluidic channel (30) containing a fluid with droplets (31), and at least one electromechanical transducer (20) attached at the substrate (10) adapted to excite an acoustic field in said channel (30). The side walls (33) are hard acoustic walls having a high specific acoustic impedance mismatch to said fluid in the channel (30) and the transducer (20) is configured to excite bulk acoustic waves (baw) as standing waves (32) of a predetermined harmonic resonance mode between said hard acoustic side walls (33), which couple into the fluid in the channel (30) exerting acoustic pressure on droplets (31) suspended in said fluid towards the pressure nodal line, pressure antinode line or centerline of the standing wave (32)..
Eth Zurich

Object information acquiring apparatus

An object information acquiring apparatus is used which includes a receiver including a plurality of elements each transmitting an acoustic wave, receiving an echo wave resulting from reflection of the acoustic wave by an object, and outputting an electric signal, a transmission controller that controls an intensity of the acoustic wave transmitted from each of the plurality of elements, a scanner that moves the receiver in a predetermined scanning region, and an information processor that acquires characteristics information on an inside of the object using the electric signal. The transmission controller controls the intensity of the acoustic wave in accordance with a shape of the object and a position of the receiver in the predetermined scanning region..
Canon Kabushiki Kaisha

Probe for photoacoustic measurement and photoacoustic measurement apparatus including same

Disclosed are a probe for photoacoustic measurement which can suppress generation of artifacts obstructive to signal observation in a photoacoustic measurement, and a photoacoustic measurement apparatus including the same. The probe for photoacoustic measurement includes a light emission unit which emits measurement light to a subject, and an acoustic wave detection unit which detects a photoacoustic wave generated in the subject by the emission of measurement light.
Fujifilm Corporation

Subject information processing apparatus

There is provided a subject information processing apparatus including a first acoustic conversion element that receives an acoustic wave having a first frequency reflected inside a subject and converts the acoustic wave into an analog signal, a second acoustic conversion element that receives an acoustic wave having a second frequency generated when light is irradiated to a subject and converts the acoustic wave into an analog signal, an a/d converter that converts the analog signal into a digital signal, a data memory that retains the digital signal, and a controller that instructs the data memory to output the digital signal at a predetermined sampling frequency for each receiving axis.. .
Canon Kabushiki Kaisha

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.

Condenser microphone unit, condenser microphone, and manufacturing condenser microphone unit

A condenser microphone unit is provided that can flatten a frequency response in a high frequency band. The condenser microphone unit includes a unit case having an acoustic-wave entering hole, and a diaphragm accommodated in the unit case.
Kabushiki Kaisha Audio-technica



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


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