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Communications, Electrical: Acoustic Wave Systems And Devices > Signal Transducers

Signal Transducers

Signal Transducers patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

02/06/14 - 20140036633 - Ultrasonic probe
An array of ultrasonic transducers is formed on a piezoelectric polymer foil. Ultrasonic transducer electrodes are formed on a first side of the foil and a ground layer is formed on a second side of the foil....

02/06/14 - 20140036634 - Three-dimensional mechanical ultrasonic probe
A three-dimensional mechanical ultrasound probe includes a base; a transducer for emitting an ultrasonic signal; a driven wheel with a hole, the driven wheel being connected to the transducer, the transducer being swung by the driven wheel; a motor fixed on the base; and a transmission system connected to the...

01/02/14 - 20140003196 - Acoustic wave device built-in module and communication device
An acoustic wave device built-in module includes: a multilayer wiring board formed by stacking an insulating layer and a wiring layer; an acoustic wave device embedded in the multilayer wiring board; and an electronic component located on the multilayer wiring board and electrically coupled to the acoustic wave device, wherein...

11/28/13 - 20130315035 - Ultrasound transducer and method for manufacturing an ultrasound transducer
An ultrasound transducer includes an array of acoustic elements, an integrated circuit, and an interposer. The interposer includes conductive elements for electrically connecting the acoustic elements to the integrated circuit. The conductive elements are electrically connected to the integrated circuit. Solder is engaged between the acoustic elements and the conductive...

10/31/13 - 20130286786 - Ultrasound transducer array, method of manufacturing ultrasound transducer array and ultrasound endoscope
An ultrasound transducer array according to an embodiment includes a substrate, a plurality of groove-like recesses arranged at a predetermined interval on one surface of the substrate, a cell region arranged between the recesses on the one surface side of the substrate, a flexible film configured to cover the substrate...

10/10/13 - 20130265856 - Thermoacoustic sensor
A close-proximity thermoacoustic sensor that can determine radiated ultrasound intensities by directly coupling a transducer via a coupling medium. The sensor captures the beam, converts the ultrasound power into heat, and indirectly measures the spatial average time average ultrasound intensity (Isata) by dividing the calculated power by the beam-cross-section (or...

09/05/13 - 20130229893 - Ultrasound probe
An ultrasound probe is provided that may improves specific desensitization of the frequency observed in the frequency characteristics and/or directional characteristics. The ultrasound probe related to this embodiment comprises an ultrasound transducer 10 and a plurality of acoustic matching layers 20 arranged in layers in the direction of irradiation irradiated...

08/29/13 - 20130223193 - Head unit, ultrasonic probe, electronic instrument, and diagnostic device
A head unit for an ultrasonic probe includes a connecting section, an element chip and a supporting member. The connecting section is configured to electrically connect the head unit to a probe main body of the ultrasonic probe. The element chip is configured to be electrically connected to the probe...

07/25/13 - 20130188458 - Mut circuit with an electrically controllable membrane
A micromachined ultrasonic transducer (MUT) circuit, which has a MUT with a MUT membrane that can vibrate back and forth to transmit an ultrasonic wave, electrically controls the movement of the MUT membrane by controllably transferring energy to the MUT membrane, thereby allowing the MUT membrane to transmit substantially any...

07/04/13 - 20130170321 - Systems and methods for controlling transducer pulse transitions in ultrasound imaging
Methods and systems for transitioning a transducer voltage between a first voltage level and a second voltage level are provided. A method includes pulling a transducer voltage to the first voltage level, pulling the transducer voltage from the first voltage level to an intermediate voltage level, and pulling the transducer...

05/23/13 - 20130128702 - Compact, energy-efficient ultrasound imaging probes using cmut arrays with integrated electronics
A CMUT on CMOS imaging chip is disclosed. The imaging chip can use direct connection, CMOS architecture to minimize external connections and minimize chip cross-section. The CMOS architecture can enable substantially the entire chip area to be utilized for element placement. The chip can utilize arbitrarily selected transmit (Tx) and...

02/28/13 - 20130051179 - Electro-acoustic transducer and method of manufacturing the same
Electro-acoustic transducers and methods of manufacturing the electro-acoustic transducer are provided. An electro-acoustic transducer includes: a first wafer including a first substrate in which a plurality of electro-acoustic transducer cells are formed; and a second wafer disposed in a lower portion of the first wafer, and including a second substrate...

02/07/13 - 20130033967 - Transducer module
The present invention is directed to a transducer module including a first transducer and a second transducer. The second transducer is disposed between the first transducer and a first plate....

02/07/13 - 20130033968 - Sparker array source
A sparker array includes a plurality of sparker sources of sound and light emissions, the plurality of sparker sources arranged in a geometric pattern with respect to a region, the array configured to deliver a maximal acoustic output to the region. Sparker sources may include reflectors. A single electrical source...

01/17/13 - 20130016587 - Ultrasonic transducer unit and ultrasonic probe
In an ultrasonic transducer unit comprising a plurality of ultrasonic transducers, each of the ultrasonic transducers is provided with a recess formed in one face of an insulating substrate, and a substrate-side electrode is buried in a bottom of the recess, and a vibrating membrane is formed so as to...

11/29/12 - 20120300590 - Clamp type ultrasonic processor and application thereof
A clamp type ultrasonic processor comprises a transducer assembly and a functional gripper. The transducer assembly comprises a transducer (1) and an amplitude transforming shaft (2) attached thereto. At least one transducer assembly is connected to the functional gripper. The functional gripper comprises an irradiation front line shaft-approximal block (3)...

11/22/12 - 20120294121 - Transducer for phased array acoustic systems
A transducer includes a base, a horn, and a central element. The horn includes a first end coupled to the base and a second end extending from the base and having a perimeter that defines a substantially planar face of the transducer, the horn defining a horn length along a...

10/04/12 - 20120250464 - Thermoacoustic device
A thermoacoustic device includes a sound wave generator and a signal input device. The sound wave generator includes a carbon film. The carbon film includes at least one carbon nanotube layer and at least one graphene layer stacked on each other. The signal input device inputs signals to the sound...

10/04/12 - 20120250465 - Coupling element for acoustically coupling a sound transducer to a body, and sound transducer comprising said coupling element
The invention relates to a coupling element for acoustically coupling a sound transducer to a body for transmitting high-frequency structure-borne noise from the sound transducer to the body and/or from the body to the sound transducer, wherein the coupling element includes a deformable contact region for positively contacting the body....

07/12/12 - 20120176866 - Ultrasonic sensor
An ultrasonic sensor includes a transceiver device for transmitting and receiving ultrasonic waves; a circuit board mounted with an electronic circuit processing ultrasonic signals transmitted and received through the transceiver device; a housing including a device storing portion storing the transceiver device, a board storing portion storing the circuit board...

01/19/12 - 20120014221 - Monolithic flexure pre-stressed ultrasonic horns
A monolithic ultrasonic horn where the horn, backing, and pre-stress structures are combined in a single monolithic piece is disclosed. Pre-stress is applied by external flexure structures. The provision of the external flexures has numerous advantages including the elimination of the need for a pre-stress bolt. The removal of the...

08/11/11 - 20110194380 - Measuring apparatus
A measuring apparatus includes an acoustic wave detecting unit that detects acoustic waves generated from a subject irradiated with light; and a member that is disposed between the acoustic wave detecting unit and the subject and has an acoustic speed value smaller than an average acoustic speed value inside the...

07/21/11 - 20110176392 - Signal transmitter device comprising an electrical acoustic signal transmitter
A signal transmitter device comprises an electrical acoustic signal transmitter signal, which has a piezoceramic disk on a metal membrane, on a printed circuit board. The printed circuit board has an opening in the region of the piezoceramic disk or the metal membrane, wherein the metal membrane extends over the...

05/12/11 - 20110110196 - Thermoacoustic device
A thermoacoustic units includes at least one first electrode, at least one second electrode, a sound wave generator electrically connected with the at least one first electrode and the at least one second electrode, a housing, and at least one socket connector. The housing receives the at least one first...

04/28/11 - 20110096634 - Acoustic generator for distance sounding with a mechanism for automatically setting the armed pressure in the pressure chamber
In the oil industry, the acoustic sounding method is a well-known technique for taking the depth measurements of particular attributes of an oil well or borehole. The method involves sending a short, sharp, clear, loud bang sound down a borehole, normally between the inside wall of the borehole casing, commonly...

03/31/11 - 20110075519 - Thermoacoustic device
A thermoacoustic device includes a sound wave generator, a plurality of first electrodes, a plurality of second electrodes, a first network and a second network. The sound wave generator includes a first surface and a second surface. The plurality of first electrodes are disposed on the first surface. The plurality...

03/17/11 - 20110063951 - Active sonar system
An active sonar system includes at least one transmitter to transmit an acoustic signal, at least one receiver to receive a reflected acoustic signal, and an electronic cabinet to control the at least one transmitter to transmit the acoustic signal and the receiver to receive the reflected acoustic signal. At...

07/29/10 - 20100188932 - Low power sensor system
A sensor for a vehicle that conserves power by alternately switching between a power on and a reduced power state. The circuit compares a most recent sensor measurement with an earlier measurement while in the power-on state and then switches to a reduced power state. A time delay generation function...

07/29/10 - 20100188933 - Thermoacoustic device
A thermoacoustic device includes at least one first electrode, at least one second electrode, a sound wave generator and two protection components. The sound wave generator is electrically connected to the at least one first electrode and the at least one second electrode. The sound wave generator includes a carbon...

07/29/10 - 20100188934 - Speaker
A speaker includes a thermoacoustic module, an amplifier circuit board, and a frame. The thermoacoustic module includes a sound wave generator, at least one first electrode and at least one second electrode. The at least one first electrode and the at least one second electrode are electrically connected to the...

07/29/10 - 20100188935 - Thermoacoustic device
Wherein R1 represents a resistance of the sound wave generator in the direction from the first electrodes to the second electrodes, and n represents a sum of the total number of the first electrodes and the second electrodes....

07/22/10 - 20100182877 - Ultrasound-mediated high-speed biological reaction and tissue processing
Methods of fixing and processing tissue and samples on a membrane by using ultrasound radiation as a part of the method are presented. Ultrasound of a frequency in the range of 0.1-50 MHz is used and the sample or tissue receives 0.1-200 W/cm2 of ultrasound intensity. The use of ultrasound...

07/08/10 - 20100172213 - Thermoacoustic device
A thermoacoustic device includes a thermoacoustic module and a frame. The thermoacoustic module includes a sound wave generator, at least one first electrode and at least one second electrode. The sound wave generator includes at least one carbon nanotube structure. The at least one first electrode and the at least...

07/08/10 - 20100172214 - Thermoacoustic device
A thermoacoustic device includes first electrodes, a first conductive element, second electrodes, a second conductive element, first insulators, second insulators and a thermoacoustic film. The first conductive element is electrically connected with the first electrodes. The second conductive element is electrically connected with the second electrodes. The first insulators connect...

07/08/10 - 20100172215 - Thermoacoustic device
A thermoacoustic device includes a first electrode, a second electrode and a sound wave generator. The first electrode includes a first electrical conductor and a first conductive adhesive layer located on the first electrical conductor. The second electrode includes a second electrical conductor and a second conductive adhesive layer located...

07/08/10 - 20100172216 - Thermoacoustic device
A thermoacoustic device includes a thermoacoustic module, a first protection component, a second protection component, and an infrared-reflective film. The thermoacoustic module includes a sound wave generator, at least one first electrode and at least one second electrode. The at least one first electrode and the at least one second...

05/06/10 - 20100110839 - Thermoacoustic device
A thermoacoustic device includes a sound wave generator and an infra-red reflecting element having an infrared reflection coefficient higher than 30 percent. The infra-red reflecting element can be disposed at one side of the sound wave generator to reflect the emitted heat of the sound wave generator....

12/31/09 - 20090323475 - Thermoacoustic device
A sound wave generator includes one or more carbon nanotube films. The carbon nanotube film includes a plurality of carbon nanotubes substantially parallel to each other and joined side by side via van der Waals attractive force. The one or more carbon nanotube films produce sound by means of the...

12/31/09 - 20090323476 - Thermoacoustic device
A sound wave generator includes one or more carbon nanotube films. The carbon nanotube film includes a plurality of carbon nanotubes substantially parallel to each other and joined side by side via van der Waals attractive force therebetween. At least part of the sound wave generator is supported by a...

12/03/09 - 20090296528 - Thermoacoustic device
An apparatus includes an electromagnetic signal device, a medium, and a sound wave generator. The sound wave generator includes a carbon nanotube structure. The electromagnetic signal device transmits an electromagnetic signal to the carbon nanotube structure. The carbon nanotube structure converts the electromagnetic signal into heat. The heat transfers to...

11/12/09 - 20090279390 - Thermoacoustic device
An apparatus includes an electromagnetic signal device, a medium, and a sound wave generator. The sound wave generator includes a carbon nanotube structure. The carbon nanotube structure includes one or more carbon nanotube films. Each carbon nanotube film includes a plurality of carbon nanotubes entangled with each other. The electromagnetic...

11/05/09 - 20090274008 - Thermoacoustic device
A sound wave generator includes one or more carbon nanotube film. The carbon nanotube film includes a plurality of carbon nanotubes joined end to end by van der Waals attractive force therebetween. At least part of the one or more carbon nanotube film is supported by a supporting element. The...

11/05/09 - 20090274009 - Thermoacoustic device
A sound wave generator includes a carbon nanotube structure. At least part of the carbon nanotube structure is supported by a supporting element. The sound wave generator produces sound by means of the thermoacoustic effect....

07/16/09 - 20090180352 - Method for operating an ultrasonic sensor, and corresponding ultrasonic sensor
Operation of an ultrasonic sensor in duplex mode, and a method for operating an ultrasonic sensor in duplex mode, a corresponding ultrasonic sensor, and a corresponding device for controlling the ultrasonic sensor. A transmission trigger for triggering an acoustic transmitted signal is transmitted from the device for controlling the ultrasonic...

07/02/09 - 20090168605 - Audio generating module
An audio generating module is disclosed comprising a transmitting medium, a power unit and a transmitting unit. The power unit is used for providing power. The transmitting unit, situated in the transmitting medium, connects to the power unit for receiving power, and generating an audio in the transmitting medium according...

06/25/09 - 20090161490 - Converters, resonators and filters for acoustic surface
Each of the two electrodes comprises a plurality of electrode fingers, the electrode fingers having centre axes extending parallel to their longitudinal axes and being spaced apart from centre axes of adjacent electrode fingers of the same electrode by a distance which equals the ratio of the velocity of the...

03/05/09 - 20090059725 - Electroacoustic transducer having a slotted terminal structure for connection to a flexible wire, and an assembly of the same
The assembly includes a miniature electroacoustic transducer and a flexible electrical wire. The flexible electrical wire is terminated by a connecting element with an electrically conductive shoulder portion. The miniature electroacoustic transducer comprises an electrically conducting, externally accessible terminal having a slot structure formed therein. The slot structure is configured...