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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1769. Отображено 100.
19-04-2012 дата публикации

Multiple Aperture Probe Internal Apparatus and Cable Assemblies

Номер: US20120095347A1
Автор: David M. Smith, Donald F. Specht, Kenneth D. Brewer, Sharon L. Adam
Принадлежит: Maui Imaging Inc

A Multiple Aperture Ultrasound Imaging (MAUI) probe or transducer is uniquely capable of simultaneous imaging of a region of interest from separate physical apertures of ultrasound arrays. The probe can include separate backing plates configured to secure the ultrasound arrays in predetermined positions and orientations relative to one another. Some embodiments of the probe include flex circuit connected to the ultrasound arrays. In additional embodiments, a flex/PC board comprising flex connectors and an array of terminals is connected to the ultrasound arrays. Algorithms can solve for variations in tissue speed of sound, thus allowing the probe apparatus to be used virtually anywhere in or on the body.

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Номер записи: 1
19-04-2012 дата публикации

Ultrasound catheter for providing a therapeutic effect to a vessel of a body

Номер: US20120095389A1
Автор: Frederick J. Bennett, Gary Lichttenegger, James E. Rodriguey, John Zhang, Katsuro Tachibana
Принадлежит: Ekos LLC

The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.

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Номер записи: 2
03-05-2012 дата публикации

Catheter with shape memory alloy actuator

Номер: US20120108980A1
Автор: Clyde G. Oakley, Craig T. Nordhausen, Dennis R. Dietz, Michael J. Vonesh, Richard W. Denny, Thomas L. Tolt, Thomas W. Shilling
Принадлежит: Gore Enterprise Holdings Inc

Actuators employable for oscillating movement of a load. An improved actuator may include at least a first shape memory member that is actuatable to affect at least a portion of the oscillating movement of the load. The actuator may further include a second shape memory member actuatable to affect at least a second portion of the oscillating movement of the load. The utilization of one or more shape memory members facilitates the realization of controllable and reliable oscillating movement of a load in a compact manner. Such actuators may be used in imaging catheters having an ultrasound transducer disposed for oscillating movement to scan across an internal region of interest. Such imaging catheters may be used in generating three dimensional and/or real-time three dimensional (4D) images.

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Номер записи: 3
10-05-2012 дата публикации

Hull mounted linear sonar array

Номер: US20120113757A1
Автор: Thaddeus J. Kurpiewski
Принадлежит: Lockheed Martin Corp

A hull-mounted sonar array is provided. The array comprises a linear arrangement of hydrophones disposed within a generally D-shaped housing. The D-shaped housing comprises a generally flat portion having a first and second end and a curved portion extending from the first end to the second end. The hydrophones are arranged along the generally flat portion of the housing, equidistant from the curved portion. The housing is mounted to the hull of a vessel by, for example, a marine adhesive.

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Номер записи: 4
05-07-2012 дата публикации

Hydrophone and pressure balacing device for using for hydrophone

Номер: US20120170422A1
Автор: Haksue Lee, Sungjoon Choi, Wonkyu Moon
Принадлежит: Academy Industry Foundation of POSTECH

A sound sensor, a hydrophone including the sound sensor, and a pressure balancing device for using for the hydrophone are provided. The hydrophone includes: a sensor including a sensing part and a pressure balancing part; a printed circuit board (PCB) that is electrically connected to the sensor; a case that houses the sensor and the PCB and that has an opening at one side thereof; an elastic membrane that covers the opening of the case; and a signal line that is electrically connected to the PCB to be extended to the outside of the case. The pressure balancing part includes a diaphragm of a thin film and a support that supports the diaphragm. A pressure balancing hole is formed at one side of the pressure balancing part, and at the inside of the pressure balancing part, a channel that is connected to the pressure balancing hole is formed, and a compressible gas is filled in the channel.

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Номер записи: 5
23-08-2012 дата публикации

Ultrasound probe and ultrasound diagnostic apparatus

Номер: US20120215107A1
Автор: Katsuya Yamamoto
Принадлежит: Fujifilm Corp

An ultrasound probe includes a first transducer array for a B-mode image which transmits an ultrasonic beam for a B-mode image, a second transducer array for sound speed measurement which is tiltably provided and transmits an ultrasonic beam for sound speed measurement, and a tilting unit which tilts the second transducer array for sound speed measurement in accordance with the angle of an abdominal wall of the subject.

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Номер записи: 6
20-09-2012 дата публикации

Composite acoustic backing with high thermal conductivity for ultrasound transducer array

Номер: US20120238880A1
Автор: Richard Edward DAVIDSEN
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

A backing block for an ultrasonic transducer array stack of an ultrasound probe is formed as a composite structure of material of high thermal conductivity in which is embedded a structure of acoustic dampening material. In a constructed embodiment the composite structure is formed from a block of thermally conductive graphite in which a plurality of cylindrical holes are formed which are filled with acoustic dampening material. The holes are angled in relation to the Z-axis direction from the rear of the transducer stack so that reverberation energy traveling in that direction will encounter acoustic dampening material. The graphite around the holes is effective to conduct heat to the rear of the probe and away from the transducer stack and its ASIC.

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Номер записи: 7
04-10-2012 дата публикации

Universal Mounting Appliance for a Marine Transducer

Номер: US20120250466A1
Автор: Chris Allen
Принадлежит: Individual

The invention provides advances in the arts with useful and novel mounting devices for mounting a transducer or other device to a watercraft hull. Preferred embodiments include a forward plate to mount to the transom of the boat hull, a first housing to detachably connect to the forward plate, and a second housing to detachably connect to the first housing in an arrangement suitable for mounting a transducer or other device.

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Номер записи: 8
15-11-2012 дата публикации

Ultrasound probe

Номер: US20120285250A1
Автор: Do Kyeong Kim, Ho Jung, Sung Min Rhim
Принадлежит: Humanscan Co Ltd

The present invention relates to an ultrasound therapy system using high-intensity focused ultrasound. The ultrasound therapy improves ultrasound and heat release characteristics and provides an ultrasound probe which easily performs manufacturing and maintenance processes. According to the present invention, a housing is recessed on the inward side around the upper-part edge. A plurality of mounting holes is uniformly formed from the outside at a constant radius to the edge in the center of the upper part. A plurality of probe units is respectively installed in the plurality of mounting holes to form a sphere on the upper part of the housing. And a grounding film covers the sphere which the plurality of probe units forms.

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Номер записи: 9
24-01-2013 дата публикации

Multi-part mounting device for an ultrasonic transducer

Номер: US20130019702A1
Автор: Jochen Zilz, Judith Duerscheid, Marek Parusel, Willi Warkowski, York Oberdoerfer
Принадлежит: GE Sensing and Inspection Technologies GmbH

A multi-part mounting device for an ultrasonic transducer, the mounting device comprising a first part configured to mount the mounting device on a housing of an ultrasonic test probe, and a second part configured to retain the ultrasonic transducer, wherein the second part is at least in touching contact with the ultrasonic transducer, wherein the second part comprises a first plastic and is connected by positive fit to the first part, and wherein the first part has a greater hardness than the second part.

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Номер записи: 10
21-03-2013 дата публикации

ENCASEMENT FOR ABATING ENVIRONMENTAL NOISE, HAND-FREE COMMUNICATION AND NON-INVASIVE MONITORING AND RECORDING

Номер: US20130070934A1
Автор: Kuo Sen M.
Принадлежит: BOARD OF TRUSTEES OF NORTHERN ILLINOIS UNIVERSITY

An encasement such as an electronic pillow including a pillow unit encasing at least one error microphone and at least one loudspeaker in electrical connection with a controller unit, the pillow unit also including a power source, and a reference sensing unit including at least one reference microphone in electrical connection with the controller unit, the controller unit including an algorithm for controlling interactions between the error microphone, loudspeaker, and reference microphone. A method of abating unwanted noise, by detecting an unwanted noise with a reference microphone, analyzing the unwanted noise, producing an anti-noise corresponding to the unwanted noise in a pillow, and abating the unwanted noise. 1. An encasement , configured to accommodate a human head , comprising:an encasement area comprising a plurality of error microphones and a plurality of speakers;a reference sensing unit comprising at least one reference microphone; anda controller unit, operatively coupled to the plurality of error microphones, the plurality of speakers, and the reference sensing unit, wherein the controller unit processes signals received from the plurality of error microphones and reference sensing unit to reduce noise in an area between each of the error microphones using said speakers,wherein the controller unit is configured to reduce noise utilizing a multiple-channel feed-forward active noise control and is further configured to processes signals received from at least one of the error microphones to perform acoustic echo cancellation.2. The encasement of claim 1 , wherein the controller unit further comprises a digital signal processing unit operatively coupled to a phone interface claim 1 , wherein said acoustic echo cancellation is performed on signals received in the phone interface.3. The encasement of claim 2 , wherein the controller unit is configured to integrate the active noise control and the acoustic echo cancellation to be performed simultaneously.4 ...

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Номер записи: 11
21-03-2013 дата публикации

Ultrasound transducer unit and ultrasound endoscope

Номер: US20130072801A1
Автор: Jin Hiraoka
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP

An ultrasound transducer unit includes: an ultrasound element; a substrate; a signal transmission cable; a cylindrical metal shield member that has a large-diameter portion, a small-diameter portion, and a step portion, in which the large-diameter portion covers an outer circumference of the substrate; ground wiring that electrically connects the substrate and an outer circumferential face of the metal shield member; and an opening portion formed in the step portion or the small-diameter portion. The ground wiring is extended to outside the metal shield member from inside the large-diameter portion through the opening portion, and is electrically connected to an outer circumferential face of the small-diameter portion to thereby electrically connect the substrate and the outer circumferential face of the metal shield member.

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Номер записи: 12
28-03-2013 дата публикации

ANTI-EAVESDROPPING DEVICE

Номер: US20130077799A1
Автор: AGUIRRE, BOUZA, EATON Timothy Wayne, II Jose M., JR. Salvador, MASON Frank Augustine, MCDONNELL Daniel Ashley, WOODRUFF Stephen Robert
Принадлежит:

An anti-eavesdropping device is described. The device comprises a receiving compartment for receiving an electronic device, a noise generator, and an EMI filter. The receiving compartment is sealable to minimize signal emissions from the interior to the exterior and from the exterior to the interior, and the noise generator is coupled with the receiving compartment and the EMI filter. The EMI filter is operatively coupled with the noise generator. 1. A method of operation of an anti-eavesdropping device , the anti-eavesdropping device being constructed of materials to minimize transmission of electromagnetic and/or audio signals from an exterior of the device to an interior of the device and from the interior of the device to the exterior of the device after the device is in a closed state , the method comprising:generating a noise signal in the interior of the device to minimize reception of at least one of an audio signal or an electromagnetic signal from an exterior of the device to an interior of the device after the device is in a closed state; andsupplying power to an electronic device in an interior of the device during a period when the device is in a closed state.2. The method of claim 1 , further comprising:supplying power to the electronic device in an interior of the device during a period when the device is in an open state.3. The method of claim 1 , further comprising:generating an alarm signal indicating that the device is in an open state during a period when the device is in an open state.4. The method of claim 3 , wherein the generation of the alarm signal occurs after the device has been in an open state for a predetermined period of time.5. The method of claim 1 , further comprising:generating a noise signal in the interior of the device to minimize transmission of at least one of an audio signal or an electromagnetic signal from an exterior of the device to an interior of the device after the device is in a closed state. Many portable electronic ...

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Номер записи: 13
04-04-2013 дата публикации

METHOD AND APPARATUS FOR REDUCING THE EFFECT OF ENVIRONMENTAL NOISE ON LISTENERS

Номер: US20130083939A1
Автор: Crockett Brett G., DAVIDSON Grant A., Fellers Matthew C., Fielder Louis D., SEEFELDT Alan J.
Принадлежит: DOLBY LABORATORIES LICENSING CORPORATION

A method and apparatus for enhancing a desired audio signal for delivery through an electroacoustic channel include obtaining a noise estimate attributable to an external disturbance, applying the noise estimate to a dynamic noise compensation (DNC) process to thereby condition the desired audio signal as a function of the spectral characteristics of the noise estimate, applying the noise estimate to an adaptive equalization (AEQ) process to thereby condition the desired audio signal as a function of the electroacoustic response of the electroacoustic channel, and applying the noise estimate to an active noise cancellation (ANC) process configured to generate anti-noise for delivery into the electroacoustic channel. 130.-. (canceled)31. A method for enhancing a desired audio signal for delivery through an electroacoustic channel , comprising:obtaining a noise estimate attributable to an external disturbance;applying the noise estimate to a dynamic noise compensation (DNC) process to thereby condition the desired audio signal as a function of the spectral characteristics of the noise estimate; andapplying the noise estimate to an adaptive equalization (AEQ) process to thereby condition the desired audio signal as a function of the electroacoustic response of the electroacoustic channel.32. The method of claim 31 , further comprising:applying the noise estimate to an active noise cancellation (ANC) process configured to generate anti-noise for delivery into the electroacoustic channel.33. The method of claim 31 , wherein the noise estimate is generated by:subtracting, from a sensed electroacoustic channel sound signal, a filtered and/or delayed output of the DNC process.34. The method of claim 33 , wherein the filtered and/or delayed output is filtered by a desired response filter having a non-flat frequency response.35. The method of claim 34 , further comprising applying an output of the DNC process to an adaptive equalization filter of the AEQ process.36. A method ...

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Номер записи: 14
11-04-2013 дата публикации

ACTIVE NOISE CONTROL DEVICE

Номер: US20130089211A1
Автор: Mizuno Ko
Принадлежит:

The active noise control device for canceling out a target sound to be controlled in a target area for sound control includes: control sound output units each of which produces a control sound based on a wavefront control signal; and a wavefront control unit which provides the wavefront control signal to the corresponding one of the control sound output units, and the wavefront control unit generates the wavefront control signal to emit a synthesized sound from a virtual sound source toward the target area for sound control and cancel out the target sound in the target area for sound control, the synthesized sound being a sound synthesized from control sounds produced by the respective control sound output units, and the virtual sound source being located at a predetermined position 1. An active noise control device for canceling out a target sound to be controlled in a target area for sound control desired , the active noise control device comprising:a plurality of control sound output units each configured to produce a control sound based on a wavefront control signal; anda wavefront control unit configured to provide the wavefront control signal to the corresponding one of the control sound output units,wherein the wavefront control unit (i) includes a plurality of control filters each of which performs digital filtering using a filter coefficient for a corresponding one of the control sound output units, and (ii) is configured to generate, by the digital filtering performed by the corresponding one of the control filters, the wavefront control signal to emit a synthesized sound from a virtual sound source toward the target area for sound control and cancel out the target sound in the target area for sound control, the synthesized sound being a sound synthesized from control sounds produced by the respective control sound output units, and the virtual sound source being located at a predetermined position.2. The active noise control device according to claim 1 , ...

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Номер записи: 15
09-05-2013 дата публикации

Apparatus, Method and Computer Program for Adjustable Noise Cancellation

Номер: US20130114821A1
Автор: Hamalainen Matti Sakari
Принадлежит: Nokia Corporation

An apparatus including: at least one processor; and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, allow the apparatus to perform at least the following: receiving a background audio signal from an earpiece microphone, the earpiece microphone configured to convert sound from a surrounding environment into the background audio signal; and allow a user of the apparatus to control the generation and characteristics of a noise cancellation signal, the noise cancellation signal configured to interfere destructively with the background audio signal to alter the amplitude of the background audio signal. 2. The apparatus of claim 1 , wherein the user-controllable characteristics of the noise cancellation signal include one or more of the frequency of the noise cancellation signal claim 1 , the amplitude of the noise cancellation signal claim 1 , and the phase relationship between the noise cancellation signal and the background audio signal.3. The apparatus of claim 1 , wherein the frequency and amplitude of the noise cancellation signal are identical to the respective frequency and amplitude of the background audio signal claim 1 , and wherein the apparatus is configured to allow the user to vary the phase relationship between the noise cancellation signal and the background audio signal to alter the amplitude of the background audio signal.4. The apparatus of claim 1 , wherein the frequency of the noise cancellation signal is identical to the frequency of the background audio signal and the noise cancellation audio signal is 180 degrees out of phase with the background audio signal claim 1 , and wherein the apparatus is configured to allow the user to vary the amplitude of the noise cancellation signal to alter the amplitude of the background audio signal.5. The apparatus of claim 1 , wherein the apparatus is configured to equalise the background audio signal to ...

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Номер записи: 16
09-05-2013 дата публикации

Communication device and a casing therefor

Номер: US20130114845A1
Автор: Cortez Corley, Frank Tyneski, Larry Hawker, Norman Ladouceur
Принадлежит: Research in Motion Ltd

Disclosed is a device and a casing therefor. The device comprises a casing having a back side and a casing opening in the back side; a speaker mounted inside the casing and in communication with the casing opening; and a cover shaped to mate with and to cover the casing opening, the cover having a first nub and a second nub and a speaker opening providing an air channel for the speaker. In the device, the first and the second nubs are located about the speaker opening in a symmetrical pattern; and when the communication device is placed on a flat surface with the side of the casing facing the flat surface, the first and second nubs cause the back side of the casing to be canted from the flat surface to expose the speaker opening to ambient air.

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Номер записи: 17
30-05-2013 дата публикации

Method for Determining a Noise Reference Signal for Noise Compensation and/or Noise Reduction

Номер: US20130136271A1
Автор: Buck Markus, Lawin-Ore Toby Christian, Mboungueng Samuel Ngouoko, Schmidt Gerhard Uwe, Wolff Tobias
Принадлежит: NUANCE COMMUNICATIONS, INC.

The invention provides a method for determining a noise reference signal for noise compensation and/or noise reduction. A first audio signal on a first signal path and a second audio signal on a second signal path are received. The first audio signal is filtered using a first adaptive filter to obtain a first filtered audio signal. The second audio signal is filtered using a second adaptive filter to obtain a second filtered audio signal. The first and the second filtered audio signal are combined to obtain the noise reference signal. The first and the second adaptive filter are adapted such as to minimize a wanted signal component in the noise reference signal. 2. The computer implemented method according to claim 1 , wherein a first transfer function models a transfer from a wanted signal originating from a wanted sound source to the first signal path and a second transfer function models a transfer from the wanted signal originating from the wanted sound source to the second signal path claim 1 , and wherein the transfer function of the first adaptive filter is based on the second transfer function and wherein the transfer function of the second adaptive filter is based on the first transfer function.3. The computer implemented method according to claim 1 , further comprising:in a computer process, adapting the first and the second adaptive filter.4. The computer implemented method according to claim 3 , wherein adapting the first and the second adaptive filter is based on a normalized least mean square method.5. The computer implemented method according to wherein adapting the first and second adaptive filter is based on a minimization of the signal-to-noise ratio of the noise reference signal.6. The computer implemented method according to claim 4 , wherein the normalized least mean square method comprises modifying a set of filter coefficients of the first and/or second adaptive filter based on the noise reference signal.7. The computer implemented method ...

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Номер записи: 18
06-06-2013 дата публикации

METHOD, DEVICE AND SYSTEM FOR ELIMINATING NOISES WITH MULTI-MICROPHONE ARRAY

Номер: US20130142349A1
Автор: Li Bo, Liu Song
Принадлежит: GOERTEK INC.

To solve the problems with the prior art that a multi-microphone array cannot inhibit broad-band noises well and cannot be used in the increasingly widespread broad-band communication, embodiments of the present invention disclose a method, a device and a system for eliminating noises with multi-microphone array. The method according to an embodiment of the present invention comprises according to the number of different spacings between each of pairs of microphones of the multi-microphone array, dividing a full frequency band into the same number of sub-bands; decomposing signals of each of the pairs of microphones with the different spacings into a corresponding one of the sub-bands, wherein the larger the spacing between each pair of microphones is, the lower the frequencies of the sub-band into which the signals of the pair of microphones are decomposed will be; adaptively reducing the noises in the decomposed signals of each of the pairs of microphones with the different spacings in the corresponding sub-band to obtain noise-reduced signals for each of the sub-bands; and synthesizing the noise-reduced signals of each of the sub-bands to obtain a signal in which the noises have been reduced with the multi-microphone array in the full frequency band. The embodiments of the present invention can be used in scenarios of hands-free video calls. 1. A method for eliminating noises with multi-microphone array , the method comprisingaccording to the number of different spacings between each of pairs of microphones of the multi-microphone array, dividing a full frequency band into the same number of sub-bands;decomposing signals of each of the pairs of microphones with the different spacings into a corresponding one of the sub-bands, wherein the larger the spacing between each pair of microphones is, the lower the frequencies of the sub-band into which the signals of the pair of microphones are decomposed will be;adaptively reducing the noises in the decomposed signals ...

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Номер записи: 19
20-06-2013 дата публикации

SOUNDPROOF SHEET FOR VEHICLES, MANUFACTURING METHOD THEREOF, AND DASH SILENCER FOR VEHICLES USING SOUNDPROOF SHEET

Номер: US20130153330A1
Автор: Fushiki Shinobu
Принадлежит: HOWA TEXTILE INDUSTRY CO., LTD.

A dash silencer is constructed by layering a front side layer formed from a porous material, an intermediate layer constructed by a film structure body and a rear side layer. The rear side layer has upper and lower side layer portions which are formed from porous and sound insulation materials respectively and layered on upper and lower side layer portions of the intermediate layer. 1. A soundproof sheet for a vehicle , comprising:a first outer layer formed from a porous material and including a one-side outer layer portion and the other-side outer layer portion being extended from the one-side outer layer portion;an intermediate layer formed by a film lamination body to be layered on the one-side outer layer portion of said first outer layer; anda second outer layer including a one-side outer layer portion formed from a porous material to be layered on at least the one-side outer layer portion of said first outer layer through said intermediate layer and including the other-side outer layer portion formed from a sound insulation material to be layered on the other-side outer layer portion of said first outer layer.2. The soundproof sheet for a vehicle according to claim 1 , wherein said intermediate layer is layered on both of the one-side and other-side outer layer portions of said first outer layer claim 1 , andwherein said second outer layer is layered at its other-side outer layer portion on a layer portion of said intermediate layer corresponding to the other-side outer layer portion of said first outer layer.3. The soundproof sheet for a vehicle according to claim 1 , wherein the one-side and other-side outer layer portions of said second outer layer are layered at their mutual neighboring portions on a portion of said intermediate layer corresponding to the mutual neighboring portions of said intermediate layer to be superposed with each other.4. The soundproof sheet for a vehicle according to claim 2 , wherein the one-side and other-side outer layer ...

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Номер записи: 20
20-06-2013 дата публикации

Method and System for Active Noise Cancellation According to a Type of Noise

Номер: US20130156214A1
Автор: Cole Edwin Randolph, Murthy Nitish Krishna
Принадлежит: TEXAS INSTRUMENTS INCORPORATED

Microphone signals are received from a microphone. The microphone signals represent first sound waves. A determination is made about a type of noise that likely exists in the first sound waves. In response to the type of noise, cancellation signals are generated by filtering the microphone signals with at least one of: a first filter in response to the type of noise indicating that a first type of noise likely exists in the first sound waves; and a second filter in response to the type of noise indicating that a second type of noise likely exists in the first sound waves. In response to the cancellation signals, second sound waves are output from a speaker for cancelling at least some noise in the first sound waves. 1. A method performed by at least one device for active noise cancellation , the method comprising:from a microphone, receiving microphone signals that represent first sound waves;determining a type of noise that likely exists in the first sound waves;in response to the type of noise, generating cancellation signals by filtering the microphone signals with at least one of: a first filter in response to the type of noise indicating that a first type of noise likely exists in the first sound waves; and a second filter in response to the type of noise indicating that a second type of noise likely exists in the first sound waves; andin response to the cancellation signals, outputting second sound waves from a speaker for cancelling at least some noise in the first sound waves.2. The method of claim 1 , wherein determining the type of noise includes:from a manual switch, receiving a selection of the type of noise.3. The method of claim 1 , wherein determining the type of noise includes:in response to the microphone signals, determining the type of noise.4. The method of claim 3 , wherein determining the type of noise includes:in response to a spectral slope of the microphone signals, determining the type of noise.5. The method of claim 1 , wherein determining ...

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Номер записи: 21
27-06-2013 дата публикации

SOUND MASKING DEVICE AND SOUND MASKING METHOD

Номер: US20130163772A1
Автор: ISHIBASHI Toshiaki, Kobayashi Eiko
Принадлежит:

A sound masking device includes: a sound pick-up unit which picks up a sound, and which produces a picked-up sound signal based on the sound, a masking sound signal producing unit which produces a masking sound signal from the picked-up sound signal a sound emitting unit which emits a masking sound based on the masking sound signal, and an echo cancelling unit which performs an echo cancelling process on the picked-up sound signal by performing an adaptive filtering process on the masking sound signal, and by subtracting the filtered masking sound signal from the picked-up sound signal. The masking sound signal producing unit produces a masking sound signal having a level corresponding to an amplitude level of the picked-up sound signal which has subjected to the echo cancelling process. 1. A sound masking device comprising:a sound pick-up unit configured to pick up a sound, and produce a picked-up sound signal based on the sound;a masking sound signal producing unit configured to produce a masking sound signal from the picked-up sound signal, the masking sound signal causing the sound picked up by the sound pick-up unit to be hardly hearable by a third person;a sound emitting unit configured to emit a masking sound based on the masking sound signal; andan echo cancelling unit configured to perform an echo cancelling process on the picked-up sound signal by performing an adaptive filtering process on the masking sound signal and by subtracting the filtered masking sound signal from the picked-up sound signal,wherein the masking sound signal producing unit produces a masking sound signal having a level corresponding to an amplitude level of the picked-up sound signal which has subjected to the echo cancelling process.2. The sound masking device according to claim 1 , further comprising:a transmission characteristic detecting unit configured to acquire transmission characteristics to be used in the filtering process in the echo cancelling unit, and output frequency ...

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Номер записи: 22
27-06-2013 дата публикации

NOISE REDUCTION APPARATUS

Номер: US20130163774A1
Автор: Maeda Tsuyoshi
Принадлежит: Panasonic Corporation

The noise reduction apparatus according to the present disclosure includes a plurality of loudspeakers, control sound signal generating units, and a plurality of error microphones. Each of the control sound signal generating units generates control sound signal based on the error sound detected by a corresponding error microphone of the plurality of error microphones. The noise reduction apparatus further including an input switching unit that, when a level of the noise at a predetermined position is higher than the predetermined threshold value, feeds an error audio signal at a predetermined control point of the plurality of control points or a control point that is newly set based on the plurality of control points into each of the control sound signal generating units, the number of the newly set control point being less than the number of the plurality of control points 1. A noise reduction apparatus comprising:a plurality of loudspeakers that generate control sounds to cancel noises at a plurality of control points at which noise are reduced;a plurality of control sound signal generating units, each of the control sound signal generating units being provided to correspond to each of the plurality of loudspeakers and generating control sound signal to drive the corresponding loudspeaker of the plurality of loudspeakers; anda plurality of error microphones, each of the error microphones is arranged at a corresponding control point of the plurality of control points and detecting error sound between the noise at the corresponding control point and the control sound at the corresponding control point, whereineach of the control sound signal generating units generates control sound signal based on the error sound detected by a predetermined error microphone of the plurality of error microphones, andthe noise reduction apparatus further comprising an input switching unit that, when a level of the noise at a predetermined position is higher than a predetermined ...

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Номер записи: 23
04-07-2013 дата публикации

AUDIO OUTPUT DEVICE AND AUDIO OUTPUT METHOD

Номер: US20130170655A1
Автор: Saito Kosuke, Satoyoshi Kazuhiro
Принадлежит: YAMAHA CORPORATION

A audio output device includes: a speaker position detecting unit which detects the position of a speaker; a masking sound producing section which produces a masking sound; a plurality of loudspeakers which output the masking sound; and a localization controlling section which controls a localization position of the masking sound based on the speaker position detected by the speaker position detecting unit, and which supplies a sound signal relating to the masking sound to at least one of the plurality of loudspeakers. 1. An audio output device comprising:a speaker position detecting section adapted to detect a position of a speaker;a masking sound producing section adapted to produce a masking sound;a plurality of loudspeakers adapted to output the masking sound; anda localization controlling section adapted to control a localization position of the masking sound based on the speaker position detected by the speaker position detecting section, and supply a sound signal relating to the masking sound to at least one of the plurality of loudspeakers.2. The audio output device according to claim 1 , wherein the localization controlling section sets the localization position of the masking sound to the speaker position detected by the speaker position detecting section.3. The audio output device according to claim 1 , further comprising:a microphone array in which a plurality of microphones that pick up a sound are arranged,wherein the speaker position detecting section detects the speaker position based on a phase difference of sounds picked up by the plurality of microphones.4. The audio output device according to claim 1 , wherein the masking sound producing section sets a level of the masking sound to a high level in a case where the speaker position detected by the speaker position detecting section is changed.5. The audio output device according to claim 1 , wherein the speaker position detecting section sets a position of a microphone in which a volume level of a ...

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Номер записи: 24
04-07-2013 дата публикации

MASKING SOUND OUTPUTTING DEVICE AND MASKING SOUND OUTPUTTING METHOD

Номер: US20130170662A1
Автор: Kobayashi Eiko, Koga Hiroaki
Принадлежит:

A masking sound outputting device includes: an inputting unit which receives a picked-up sound signal relating to a picked-up sound; an extracting unit which extracts an acoustic feature amount of the picked-up sound signal; an instruction receiving unit which receives instructions for starting an output of a masking sound; and an outputting unit which, in the case where the instruction receiving unit receives the instructions for starting an output, outputs a masking sound corresponding to the acoustic feature amount extracted by the extracting unit. 1. A masking sound outputting device comprising:an inputting unit adapted to input a picked-up sound signal relating to a picked-up sound;an extracting unit adapted to extract an acoustic feature amount of the picked-up sound signal;an instruction receiving unit adapted to receive an instruction for starting an output of a masking sound; andan outputting unit adapted to, when the instruction receiving unit receives the instruction for starting an output, output a masking sound corresponding to the acoustic feature amount extracted by the extracting unit.2. The masking sound outputting device according to claim 1 , further comprising:a correspondence table indicating correspondence relationships between the acoustic feature amount and the masking sound; anda masking sound selecting unit adapted to refer the correspondence table by using the acoustic feature amount extracted by the extracting unit, to select the masking sound corresponding to the acoustic feature amount extracted by the extracting unit, andwherein the outputting unit outputs the masking sound selected by the masking sound selecting unit.3. The masking sound outputting device according to claim 2 , wherein a plurality of masking sounds are made correspondent to the acoustic feature amount; andwherein the masking sound selecting unit selects a masking sound from the plurality of masking sounds which are made correspondent to the acoustic feature amount in ...

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Номер записи: 25
04-07-2013 дата публикации

Radio Apparatus Comprising an Agglomeration of Acoustically Adsorbing Members

Номер: US20130170690A1
Автор: BACKMAN Juha Reinhold
Принадлежит: Nokia Corporation

An apparatus including an agglomeration of acoustically adsorbing members suitably located substantially on or in a non-conductive support, wherein each acoustically adsorbing member is separated from neighbouring members. 1. An apparatus comprising:an agglomeration of acoustically adsorbing members suitably located substantially on or in a non-conductive support, wherein each acoustically adsorbing member is separated from neighbouring members.2. The apparatus as claimed in claim 1 , wherein the adsorbing members comprise at least one of:activated carbon bodies;carbon nanotubes; anda plurality of connecting sub-member bodies.3. The apparatus as claimed in claim 1 , wherein the adsorbing members are substantially regular in shape.4. The apparatus as claimed in claim 1 , wherein the adsorbing members are substantially identical.5. The apparatus as claimed in claim 1 , wherein the adsorbing members are non-regular in shape and/or non-uniform.6. The apparatus as claimed in claim 1 , wherein the adsorbing members comprise separated parts of a single acoustically adsorbing material piece.7. The apparatus as claimed in claim 1 , wherein the non-conductive support comprises a substantially acoustically transparent material upon which the agglomeration of acoustically adsorbing members are located such that each acoustically adsorbing member is separated from neighbouring members by an air gap.8. The apparatus as claimed in claim 1 , wherein the non-conductive support comprises a substantially acoustically transparent material within which the agglomeration of acoustically adsorbing members are deposited such that each acoustically adsorbing member is substantially separated from neighbouring members by non-conductive support material.9. The apparatus as claimed in claim 1 , wherein the non-conductive support comprises a grid or mesh structure.10. The apparatus as claimed in claim 1 , wherein the non-conductive support is a flexible material.11. The apparatus as claimed in ...

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Номер записи: 26
04-07-2013 дата публикации

Systems and methods for shock absorbing in ultrasound probes

Номер: US20130172751A1
Автор: Christian Heinrich, Christian Holl
Принадлежит: General Electric Co

Methods and systems for shock absorbing in ultrasound probes are provided. One ultrasound probe has a housing and a scan head within the housing, wherein the scan head includes a transducer array. The ultrasound provide further includes an axle coupled to the scan head allowing rotation of the scan head and a shock absorbing member within the scan head coupled between the transducer array and the axle. The shock absorbing member is configured to allow relative movement between the axle and the transducer array.

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Номер записи: 27
18-07-2013 дата публикации

ACOUSTIC FAULT DETECTION OF MECHANICAL SYSTEMS WITH ACTIVE NOISE CANCELLATION

Номер: US20130182865A1
Автор: Paul Matthews
Принадлежит: AGCO CORPORATION

An active noise cancellation fault detector (NCFD) is presented that is configured to cancel normal machine noise in an operator cabin, while allowing noise associated with a machine failure mode to remain so that an operator can hear when a machine component is beginning to fail or is in a failure mode. An NCFD can generate a model waveform of normal noise scaled to machine operating parameters. The model waveform can be inverted and adjusted in gain and phase to provide a cancellation waveform. The invention can be configured to determine operator location within a machine cab so that cancellation signals can be configured with the proper phases to destructively interfere with normal machine noise within a quiet zone or noise suppression envelope around an operator. Noise within the quiet zone can be detected and compared to various fault waveforms to determine whether a machine component is beginning to fail. 1. A system comprising:a noise suppression fault detector (NSFD) configured to provide a model waveform based on one or more machine parameters, and provide an audio cancellation signal based on said model waveform, said audio cancellation signal having a phase dependent on a user location; anda speaker configured to receive said audio cancellation signal and provide an acoustic cancellation signal.2. The system of claim 1 , further comprising a second speaker configured to provide a second acoustic cancellation signal claim 1 , said second cancellation signal phase dependent on said user location.3. The system of claim 1 , wherein said system is configured to provide a quiet zone around said user in which said cancellation signal destructively interferes with normal machine noise.4. The system of claim 3 , further comprising at least one microphone positioned within said quiet zone and configured to detect sound therein.5. The system of claim 4 , configured to use said detected sound to detect a machine fault.6. The system of claim 1 , further comprising at ...

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Номер записи: 28
18-07-2013 дата публикации

Temporal Interpolation of Adjacent Spectra

Номер: US20130182868A1
Автор: Iser Bernd, Krini Mohamed, Schmidt Gerhard Uwe, Wolf Arthur
Принадлежит: NUANCE COMMUNICATIONS, INC.

Embodiments of the present invention exploit redundancy of succeeding FFT spectra and use this redundancy for computing interpolated temporal supporting points. An analysis filter bank converts overlapped sequences of an audio (ex. loudspeaker) signal from a time domain to a frequency domain to obtain a time series of short-time loudspeaker spectra. An interpolator temporally interpolates this time series. The interpolation is fed to an echo canceller, which computes an estimated echo spectrum. A microphone analysis filter bank converts overlapped sequences of an audio microphone signal from the time domain to the frequency domain to obtain a time series of short-time microphone spectra. The estimated echo spectrum is subtracted from the microphone spectrum. Further signal enhancement (filtration) may be applied. A synthesis filter bank converts the filtered microphone spectra to the time domain to generate an echo compensated audio microphone signal. Computational complexity of signal processing systems can, therefore, be reduced. 1. A method for echo compensation of at least one audio microphone signal that includes an echo signal contribution due to an audio loudspeaker signal in a loudspeaker-microphone system , the method comprising:converting overlapped sequences of the audio loudspeaker signal from a time domain to a frequency domain and obtaining a time series of short-time loudspeaker spectra with a predetermined number of sub-bands, wherein the sequences have a predetermined sequence length and an amount of overlapping of the overlapped sequences predetermined by a loudspeaker sub-sampling rate;temporally interpolating the time series of short-time loudspeaker spectra, including, for each pair of temporally adjacent short-time loudspeaker spectra, calculating an interpolated short-time loudspeaker spectrum by weighted addition of the temporally adjacent short-time loudspeaker spectra; first filter coefficients are used for weighting the current loudspeaker ...

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Номер записи: 29
01-08-2013 дата публикации

Backing element of ultrasonic probe, backing layer of ultrasonic probe, and manufacturing method thereof

Номер: US20130197368A1
Автор: Gil-ju JIN
Принадлежит: Samsung Medison Co Ltd

A backing element of a ultrasonic probe, a backing layer of a ultrasonic probe, and a manufacturing method thereof, the backing layer formed by arranging a plurality of members each having a shape of a polygonal column in a one-dimensional manner or in a two-dimensional manner while each of the plurality of members is provided with a conductive trace formed at one side surface thereof, thereby electrically connecting an ultrasonic transducer array, which is being acoustically connected to the backing layer, in a further simple and definite manner.

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Номер записи: 30
15-08-2013 дата публикации

NOISE REDUCTION DEVICE

Номер: US20130208906A1
Автор: ASAO Yoshifumi, Maeda Tsuyoshi
Принадлежит: Panasonic Corporation

A noise reduction device includes a noise controller, a control sound output component and a residual sound detector. The noise controller is configured to produce a control sound signal for canceling out noise. The control sound output component is configured to output a control sound based on the control sound signal produced by the noise controller. The residual sound detector is configured to detect a residual sound produced by superposition of noise and the control sound outputted from the control sound output component. The control sound output component and the residual sound detector are housed in the shell. The control sound output component and the residual sound detector are away from a rear face of the seat. 1. A noise reduction device used along with a shell which envelops at least part of a seat configured to support a user in a substantially lying posture , comprising:a noise controller configured to produce a control sound signal for canceling out noise;a control sound output component configured to output a control sound based on the control sound signal produced by the noise controller; anda residual sound detector configured to detect a residual sound produced by superposition of noise and the control sound outputted from the control sound output component,at least the control sound output component and the residual sound detector being housed in the shell, andthe control sound output component and the residual sound detector being away from a rear face of the seat.2. The noise reduction device according to claim 1 , whereinthe control sound output component and at least part of the residual sound detector are located at a specific height from the rear face.3. The noise reduction device according to claim 1 , whereina pair of the control sound output components and a pair of the residual sound detectors are installed in the shell.4. The noise reduction device according to claim 3 , whereinthe pair of the control sound output components are ...

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Номер записи: 31
22-08-2013 дата публикации

FLUID LINE HAVING A RESONATOR

Номер: US20130213732A1
Автор: Bornemann Axel, Fassl Holger, Flach Axel
Принадлежит: ContiTech MGW GmbH

A fluid line includes a resonator having an inner part and a blow-molded outer part defining an inner surface. The inner and outer parts are fixedly connected. The inner part is an injection-molded part having first and second radial collars spaced axially apart from each other. The inner part defines a radial circumference with a plurality of orifices formed therein. The inner and outer parts are axially one within the other so that there is no throughflow of secondary air between the first and second radial collars and the inner surface of the outer part. The inner and outer parts have a common end whereat they are airtightly connected to each other. The inner part, the radial collars and the inner surface of the outer part conjointly define two resonant chambers operatively connected to fluid in the fluid line via the orifices. 1. A fluid line comprising:at least one resonator having an inner part and an outer part having an inner surface;said inner part and said outer part being fixedly and non-detachably connected to each other;said inner part of said resonator being an injection-molded part having at least a first and a second radial collar spaced axially apart from each other;said inner part defining a radial circumference and having a plurality of orifices therein distributed over said radial circumference;said outer part being a blow-molded part;said inner part and said outer part being axially plugged into each other in such a manner that there is no throughflow of secondary air between said first and said second radial collars and said inner surface of said outer part;said inner part and said outer part having a common, communicating end whereat said inner part and said outer part are connected to each other in an airtight manner;said inner part, said radial collars and said inner surface of said outer part conjointly defining at least two resonant chambers; and,said resonant chambers being configured to be operatively connected to fluid in the fluid line ...

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Номер записи: 32
22-08-2013 дата публикации

APPARATUS AND METHOD FOR REDUCING DIGITAL NOISE OF AUDIO SIGNAL

Номер: US20130216059A1
Автор: YOO Chul Jae
Принадлежит: RADSONE lnc.

Provided are an apparatus and method for reducing digital noise. The digital noise reducing apparatus includes: a clarified signal generator configured to generate a clarity improvement pattern for increasing an energy ratio of an early reflection region with respect to all reverberations for a received audio source signal, to convolve the clarity improvement pattern with the audio source signal, and to output an audio source signal convolved the audio source signal with the clarity improvement pattern; an early reflection generator configured to output an early reflection signal convolved the audio source signal with an early reflection pattern; a late reverberation generator configured to receive the audio source signal, and to generate a late reverberation signal for attenuating digital noise of the audio source signal; and a noise attenuator configured to generate an audio signal added the early reflection signal and the late reverberation signal to the audio source signal. 1. An apparatus of reducing digital noise of an audio signal , comprising:a clarified signal generator configured to generate a clarity improvement pattern for increasing an energy ratio of an early reflection region with respect to all reverberations for a received audio source signal, to convolve the clarity improvement pattern with the audio source signal, and to output the result of the convolution as an audio source signal to which the clarity improvement pattern has been applied;an early reflection generator configured to convolve the audio source signal convolved with the clarity improvement pattern with an early reflection pattern, and to output the result of the convolution as an early reflection signal to which the clarity improvement pattern has been applied;a late reverberation generator configured to receive the audio source signal, and to generate a late reverberation signal for attenuating digital noise of the audio source signal; anda noise attenuator configured to add the ...

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Номер записи: 33
29-08-2013 дата публикации

Acoustically Damped Component

Номер: US20130220733A1
Автор: VOGEL Claus
Принадлежит: MAN TRUCK & BUS AG

Acoustically damped component for a vehicle, an engine, a transmission or a vehicle trim panel, includes a flat basic body provided on at least one side with a rib structure. The ribs of the rib structure form chambers which are arranged irregularly on at least one region of the component, which has a resonant frequency of from 200 to 1000 Hz. The chambers are configured irregularly in such a way that chambers of the component have different dimensioning and/or geometry in comparison with adjoining chambers, such that emitted airborne sound can be reduced and/or eradicated. A response to a transient excitation of at least two part areas of that surface of the component which is provided with the chambers having a correlation of from 0.5 to 0.85, preferably of from 0.6 to 0.7. 1. An acoustically damped component comprising:{'b': '3', 'a flat basic body () having a surface;'}{'b': 5', '6', '6', '6', '6', '3, 'a rib structure () having ribs (, ′, ″, ′″) provided at least in regions on at least one side of said surface of said flat basic body ();'}{'b': 7', '7', '7', '6', '6', '6', '6, 'a plurality of chambers (, ′, ″) formed by said ribs (, ′, ″, ′″) of said rib structure;'}{'b': 7', '7', '7', '8', '8, 'said chambers (, ′, ″) arranged irregularly on at least one region of said component and defining a plurality of part areas (, ′);'}said component constructed so as to have a resonant frequency of from 200 to 1000 Hz;{'b': 7', '7', '7', '7', '7', '7, 'said chambers (, ′, ″) configured irregularly such that, at least in regions, said chambers (, ′, ″) of said component have one of different dimensioning and geometry in comparison with adjoining chambers such that, starting from said chambers emitted airborne sound is one of reduced and eradicated mutually in the near field; and'}{'b': 8', '8', '7', '7', '7, 'wherein a response to a transient excitation of at least two of said part areas (, ′) of said chambers (, ′, ″) provided on said surface of said flat basic body have ...

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Номер записи: 34
29-08-2013 дата публикации

Systems and Methods for Reducing Unwanted Sounds in Signals Received From an Arrangement of Microphones

Номер: US20130223644A1
Автор: Mejia Jorge, VAN HOESEL Richard
Принадлежит: HEAR IP Pty Ltd.

A system and method for reducing unwanted sounds in signals received from an arrangement of microphones including: sensing sound sources distributed around a specified target direction by way of an arrangement of microphones to produce left and right microphone output signals; determining the power of the left and right microphone signals; determining the minimum of the two microphone power measures; and, attenuating the signals based on a comparison of the left and right microphone power measures with the minimum power measure. 122-. (canceled)23. A method of reducing unwanted sounds in signals received from an arrangement of microphones , comprising:sensing sound sources distributed around a specified target direction by way of an arrangement of microphones to produce left and right microphone output signals;determining the power of the left and right microphone signals;determining the minimum of the two microphone power measures; and,attenuating the signals based on a comparison of the left and right microphone power measures with the minimum power measure.24. A method according to claim 23 , wherein the comparison of the left and right microphone power measures is based on the ratio of the microphone power and the minimum power.25. A method according to claim 23 , wherein the microphone output power and minimum power are time-averaged.26. A method according to any claim 23 , wherein the step of determining the power is frequency specific.27. A method according to claim 23 , wherein the ratio between powers is scaled by a function.28. A method according to claim 27 , wherein the scaling function comprises compressor-expander.29. A method according to claim 27 , wherein the scaling function is frequency dependent.30. A method according to claim 23 , further including the step of defining the target direction.31. A method according to claim 30 , wherein the target direction is used to filter the left and right microphone output signals.32. A method according to ...

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Номер записи: 35
12-09-2013 дата публикации

Structural Mode Shape Alignment

Номер: US20130233644A1
Автор: LANDMANN Alan E.
Принадлежит: The Boeing Company

A method is disclosed for reducing noise and vibration within a structure of a mobile platform, wherein the noise and vibration are at least in part caused by airflow over an outer skin of the mobile platform parallel to a longitudinal line extending fore to aft along the structure. The method may involve forming the structure such that a fundamental panel vibration mode shape of the structure is not parallel to the longitudinal line. 1. A method for reducing noise and vibration within a structure of a mobile platform , wherein the noise and vibration are at least in part caused by airflow over an outer skin of the mobile platform parallel to a longitudinal line extending fore to aft along the structure , the method comprising:forming the structure such that a fundamental panel vibration mode shape of the structure is not parallel to the longitudinal line.2. The method of claim 1 , wherein forming the structure comprises forming the structure so that the fundamental panel vibration mode shape of the structure extends at an angle of between about 30-45 degrees relative to the longitudinal line.3. The method of claim 1 , wherein forming the structure comprises forming the structure so that the fundamental panel vibration mode shape of the structure extends at an angle non-parallel to the longitudinal line and at least about 30 degrees relative to the longitudinal line.4. The method of claim 1 , wherein forming the structure comprises forming the structure so that the fundamental panel vibration mode shape of the structure extends at an angle non-parallel to the longitudinal line and no more than about 45 degrees relative to the longitudinal line.5. The method of claim 1 , wherein forming the structure comprises:placing a plurality of stringers parallel to one another, and at an angle that is non-parallel to the longitudinal line.6. The method of claim 1 , wherein forming the structure comprises placing a plurality of frame members parallel to one another claim 1 , but ...

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Номер записи: 36
19-09-2013 дата публикации

Ultrasonic probe

Номер: US20130241350A1
Автор: Koichi Shibamoto
Принадлежит: Toshiba Corp, Toshiba Medical Systems Corp

An ultrasonic probe including a piezoelectric vibrator and a layer, wherein the piezoelectric vibrator transmits and receives ultrasonic waves. The layer is connected to a rear surface of a side opposite a side receiving and sending ultrasonic waves from the piezoelectric vibrator and has an acoustic impedance and Young's modulus larger than that of the piezoelectric vibrator, and includes a plurality of grooves arranged such that the rear surface of the piezoelectric vibrator faces the grooves opening, wherein the plurality of grooves are shaped such that groove capacity occupying the layer volume is increased in a direction along a center to an end of the rear surface of the piezoelectric vibrator.

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Номер записи: 37
26-09-2013 дата публикации

ULTRASONIC-TRANSDUCER MOUNTING STRUCTURE

Номер: US20130250732A1
Автор: Azuma Naoya, Nagano Yasushi, Tsuji Takashi
Принадлежит: Panasonic Corporation

The ultrasonic-transducer mounting structure includes: a housing including: a body part which is formed into a hollow cylindrical shape and is provided at its front surface with a transmission surface allowing an ultrasonic wave to pass therethrough and is designed to accommodate an ultrasonic transducer therein; and plural connection pieces provided to a side surface of the body part; and a holder fixed to a rear surface of a bumper and designed to hold the housing such that the transmission surface of the housing is exposed via an opening of the bumper. The holder includes plural reception pieces to which the plural connection pieces are detachably coupled respectively. The plural reception pieces are fixed to the rear surface of the bumper to surround the opening. 1. An ultrasonic-transducer mounting structure comprising:a housing including: a body part which is fowled into a hollow cylindrical shape and is provided at its front surface with a transmission surface allowing an ultrasonic wave to pass therethrough and is designed to accommodate an ultrasonic transducer therein; and plural connection pieces provided to a side surface of the body part; anda holder fixed to a rear surface of a bumper and designed to hold the housing such that the transmission surface of the housing is exposed via an opening of the bumper,wherein:the holder includes plural reception pieces to which the plural connection pieces are detachably coupled respectively; andthe plural reception pieces are fixed to the rear surface of the bumper to surround the opening.2. The ultrasonic-transducer mounting structure as set forth in claim 1 , wherein:the holder includes plural fixed plates respectively corresponding to the plural reception pieces;each fixed plate has a first surface in a thickness direction and is fixed to the rear surface of the bumper at its first surface;each fixed plate has a second surface in the thickness direction to which the corresponding reception piece is provided; ...

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Номер записи: 38
03-10-2013 дата публикации

Removal of Wind Noise from Communication Signals

Номер: US20130259263A1
Автор: Konchitsky Alon
Принадлежит:

A special purpose machine measures and modulates communication signals that are parsed into frames. Frames of signals modulated and measured to have certain qualities are deemed to be the result of wind noise. Frames of wind noise are cancelled from further use within a communication system. 1. A method of reducing wind noise within a communication signal , the method comprising the steps of:a) receiving an audio signal;b) identifying signal distortion caused by wind noise with the audio signal, the identification performed by measuring frequencies and energy levels within the audio signal; andc) removing the identified wind noise from the audio signal by use of the measured frequencies and energy levels.2. The method of further comprising the step of measuring signal saturation to identify signal distortion caused by wind noise within the audio signal.3. The method of wherein signal saturation is a product of a gust of wind entering one or more microphones.4. A system for reducing wind noise within a communication signal claim 2 , the system comprising a processor configured to:a) accept a communication signal,b) detect wind noise within the communication signal; andc) reduce wind noise detected within the communication signal.5. The system of wherein the processor detects wind noise by measuring frequencies and energy levels within the communication signal.6. The system of wherein the measured frequencies and energy levels are used to reduce the wind noise within the communication signal.7. The system of wherein a measurement of signal saturation is used to detect the presence of wind noise.8. The system of wherein signal saturation is a product of a gust of wind entering one or more microphones. This application is a continuation in part of U.S. non-provisional application Ser. No. 12/833,804 filed on Jul. 9, 2010 which in turn claims the benefit and priority date non-provisional application 61/224,605 filed on Jul. 10, 2009. The contents of the related patent ...

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Номер записи: 39
03-10-2013 дата публикации

METHOD AND APPARATUS FOR AUDIO ENCODING FOR NOISE REDUCTION

Номер: US20130262129A1
Автор: Choi Myung-kyu, Hwang Kwang-il, Jeon Kwang-myung, Kim Duk-soo, Kim Hong-kook, Kim Sang-ryong, Kim Seong-Woon, Kim Ung-sik, Park Nam-in
Принадлежит:

A method and apparatus for audio signal encoding for noise reduction are provided. The method includes: receiving an audio signal and performing modified discrete cosine transformation (MDCT) on the audio signal to convert the audio signal into a long block or a short block; reducing noise included in the audio signal in accordance with the long block or the short block; and performing advanced audio coding (AAC) on the long block or the short block in which noise is reduced. 1. An audio signal coding method for noise reduction , the method comprising:receiving an audio signal and performing modified discrete cosine transformation (MDCT) on the audio signal to convert the audio signal into long blocks or short blocks;reducing noise of the audio signal in accordance with a long block or a short block; andperforming advanced audio coding (AAC) on the long block or the short block in which noise is reduced.2. The method of claim 1 , wherein in the reducing of noise claim 1 , a non-linear multi-band spectral subtraction is performed on the long block claim 1 , and a spectral reduction is performed on the short block based on the spectral subtraction of the long block.3. The method of claim 1 , wherein the reducing of noise comprises:dividing the long block into a plurality of sub-bands;measuring a signal-to-noise ratio (SNR) of each of the plurality of sub-bands; andperforming spectral subtraction based on information about a perceptual sound quality curve corresponding to the measured SNR and a subtraction coefficient calculated in consideration of a weight of each of the plurality of sub-bands.4. The method of claim 3 , further comprising performing over-subtraction by amplifying the subtraction coefficient claim 3 , and performing masking using an audio signal corresponding to the reduced long block.5. The method of claim 1 , wherein a noise reduction rate with respect to the short block is determined by comparing an average power of an audio signal of a ...

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Номер записи: 40
31-10-2013 дата публикации

Leakage-modeling adaptive noise canceling for earspeakers

Номер: US20130287218A1
Автор: Jeffrey Alderson, Jon D. Hendrix
Принадлежит: Cirrus Logic Inc

A personal audio device, such as a headphone, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal that measures the ambient audio, and the anti-noise signal is combined with source audio to provide an output for a speaker. The anti-noise signal causes cancellation of ambient audio sounds that appear at the reference microphone. A processing circuit uses the reference microphone to generate the anti-noise signal, which can be generated by an adaptive filter. The processing circuit also models an acoustic leakage path from the transducer to the reference microphone and removes elements of the source audio appearing at the reference microphone signal due to the acoustic output of the speaker. Another adaptive filter can be used to model the acoustic leakage path.

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Номер записи: 41
14-11-2013 дата публикации

APPLIANCE HAVING NOISE REDUCTION DEVICE

Номер: US20130298585A1
Автор: Je Byoungsoo
Принадлежит:

An appliance is provided including a noise reduction device to reduce noise generated within a main body of the appliance. The noise reduction device may include a sound absorbing plate having a plurality of sound absorbing holes and a resonance member, one side of which is open and having a hollow portion, so that noise generated by a drive of the appliance passes through the noise reduction device, in order to efficiently reduce noise in the appliance and achieve an increase of internal capacity, a decrease in weight, and a reduction in manufacturing costs for the appliance. 1. An appliance , comprising:a cabinet that defines an external appearance thereof;a drive provided within the cabinet to drive the appliance; and a resonance member, at least one side of which is an open and including a hollow portion formed therein; and', 'a sound absorbing plate coupled to the at least one open side, the sound absorbing plate having a plurality of sound absorbing holes., 'a noise reduction device to reduce noise generated by the drive, wherein the noise reduction device comprises2. The appliance according to claim 1 , wherein the noise reduction device is provided at one side of the cabinet.3. The appliance according to claim 1 , wherein the noise reduction device is mounted fully within the cabinet.4. The appliance according to claim 1 , wherein the noise reduction device replaces a portion of the cabinet claim 1 , and one surface of the resonance member is exposed to the outside of the cabinet.5. The appliance according to claim 1 , wherein the noise reduction device is mounted to contact an inner side surface of the cabinet.6. The appliance according to claim 1 , wherein the sound absorbing plate is disposed inward of the cabinet.7. The appliance according to claim 1 , wherein the sound absorbing plate is airtightly fastened to the at least one open side of the resonance member.8. The appliance according to claim 1 , wherein the sound absorbing plate has a thickness of ...

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Номер записи: 42
14-11-2013 дата публикации

NOISE BURST ADAPTATION OF SECONDARY PATH ADAPTIVE RESPONSE IN NOISE-CANCELING PERSONAL AUDIO DEVICES

Номер: US20130301842A1
Автор: Alderson Jeffrey, Hendrix Jon D., Lu Yang, Miller Antonio John
Принадлежит: Cirrus Logic, Inc.

A personal audio device, such as a wireless telephone, generates an anti-noise signal from an error microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. The error microphone is also provided proximate the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Noise bursts are injected intermittently and the adaptation of the secondary path estimating adaptive filter controlled, so that the secondary path estimate can be maintained irrespective of the presence and amplitude of the source audio. 1. A personal audio device , comprising:a personal audio device housing;a transducer mounted on the housing for reproducing an audio signal including both source audio for playback to a listener and an anti-noise signal for countering the effects of ambient audio sounds in an acoustic output of the transducer;an error microphone mounted on the housing in proximity to the transducer for providing an error microphone signal indicative of the acoustic output of the transducer and ambient audio sounds at the transducer;a noise source for providing a noise signal; anda processing circuit that generates the anti-noise signal to reduce the presence of the ambient audio sounds heard by the listener in conformity with an error signal, wherein the processing circuit implements a secondary path adaptive filter having a secondary path response that shapes the source audio and a combiner that removes the source audio from the error microphone signal to provide the error signal, and wherein the processing circuit injects intermittent bursts of noise from the noise source into the secondary path adaptive filter and the audio signal reproduced by the transducer ...

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Номер записи: 43
21-11-2013 дата публикации

Apparatus for Damping Sound in the Optical Beam Path of a Microscope, and Microscope Having a Corresponding Apparatus

Номер: US20130306398A1
Автор: Birk Holger, Fehrer Dirk-Oliver, KRISHNAMACHARI Vishnu Vardan, Seyfried Volker
Принадлежит: Leica Microsystems CMS GmbH

An apparatus for damping sound in the optical beam path of a microscope, having an acoustic insulation housing for encapsulating a sound-emitting component, preferably a rapidly moving or oscillating beam deflection means, in particular a resonantly oscillating mirror, the housing comprising at least one optical entrance/exit opening, is characterized in that the housing, preferably the opening of the housing, is embodied and/or configured in such a way that the sound otherwise emerging from the housing is largely extinguished by destructive interference without thereby influencing the optical beam. A microscope having a corresponding apparatus is furthermore claimed. 1. An apparatus for damping sound in the optical beam path of a microscope , having an acoustic insulation housing for encapsulating a sound-emitting component , preferably a rapidly moving or oscillating beam deflection means , in particular a resonantly oscillating mirror , the housing comprising at least one optical entrance/exit opening ,wherein the housing, preferably the opening of the housing, is embodied and/or configured in such a way that the sound otherwise emerging from the housing is largely extinguished by destructive interference without thereby influencing the optical beam.2. The apparatus according to claim 1 , wherein an optical entrance opening and an optical exit opening are provided as separate openings; and both openings are damped with respect to acoustic emission in accordance with the same principle.3. The apparatus according to claim 1 , wherein the opening is constituted by a tube extending away from the housing.4. The apparatus according to claim 3 , wherein the tube is equipped with at least one tube branch protruding laterally from the tube.5. The apparatus according to claim 3 , wherein the tube is equipped with two or more tube branches protruding laterally from the tube.6. The apparatus according to claim 4 , wherein the tube branch is closed at the end claim 4 , ...

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Номер записи: 44
28-11-2013 дата публикации

IN-EAR ACTIVE NOISE REDUCTION EARPHONE

Номер: US20130315410A1
Автор: Annunziato Kevin P., Harlow Jason, Monahan Michael, Parthasarathi Anand, Silvestri Ryan C., Wallace Eric M.
Принадлежит:

An active noise reduction earphone. The earphone includes structure for positioning and retaining the earphone in the ear of a user without a headband, active noise reduction circuitry including an acoustic driver with a nominal diameter greater than 10 mm oriented so that a line parallel to, or coincident with, an axis of the acoustic driver and that intersects a centerline of the nozzle intersects the centerline of the nozzle at angle θ>±30 degrees. A microphone is positioned adjacent an edge of the acoustic driver. The earphone is configured so that a portion of the acoustic driver is within the concha of a user and another portion of the acoustic driver is outside the concha of the user when the earphone is in position. An opening coupling the nozzle to the environment includes impedance providing structure in the opening. 1. Apparatus comprising:an earphone, comprisinga nozzle sealing with the entrance to the ear canal to form a cavity, the cavity including a sealed portion of an ear canal and a passageway in the nozzle;a feedback microphone, for detecting noise in the cavity;feedback circuitry, responsive to the feedback microphone, for providing a feedback noise canceling audio signal;an acoustic driver for transducing an output noise canceling audio signal comprising the feedback noise canceling audio signal to acoustic energy that attenuates the noise;an opening coupling the cavity to the environment; andimpedance-providing structure in the opening.2. The apparatus of claim 1 , wherein the impedance-providing structure comprises an acoustically resistive material in the opening.3. The apparatus of claim 2 , wherein the acoustically resistive material is wire mesh.4. The apparatus of claim 2 , wherein the impedance-providing structure comprises a tube acoustically coupling the opening and the environment.5. The apparatus of claim 4 , wherein the tube is filled with foam.6. The apparatus of claim 1 , wherein the cavity and the eardrum of a user are ...

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Номер записи: 45
05-12-2013 дата публикации

FREQUENCY-DEPENDENT ANR REFERENCE SOUND COMPRESSION

Номер: US20130322641A1
Автор: Carreras Ricardo F., Gauger, Joho Marcel, JR. Daniel M.
Принадлежит:

An active noise reduction (ANR) circuit includes a digital feed-forward ANR pathway coupled to a feed-forward microphone, to detect environmental sounds in an environment external to a casing, and to a first acoustic driver to output sounds within the casing. The digital feed-forward ANR pathway applies a plurality of filters using a first set of coefficients to convert signals from the feed-forward microphone to feed-forward anti-noise sounds to reduce environmental sounds within the casing. In response to a stimulus, the digital feed-forward ANR pathway applies the plurality of filters using a second set of coefficients, which reduce the degree of feed-forward ANR to enable human speech sounds in the environment external to the casing to be conveyed from the feed-forward microphone to the acoustic driver with less reduction than provided by the first plurality of filters. 1. An active noise reduction (ANR) circuit comprising:a digital feed-forward ANR pathway coupled to a feed-forward microphone, to detect environmental sounds in an environment external to a casing, and coupled to a first acoustic driver to output sounds within the casing; anda user input;wherein the digital feed-forward ANR pathway applies a filter using a first set of coefficients to convert signals from the feed-forward microphone to feed-forward anti-noise sounds to reduce environmental sounds within the casing, andin response to activation of the user input, the digital feed-forward ANR pathway applies the filter using a second set of coefficients,the second set of coefficients reducing the degree of feed-forward ANR to enable human speech sounds in the environment external to the casing to be conveyed from the feed-forward microphone to the acoustic driver with less reduction than provided by the first set of coefficients.2. The ANR circuit of further comprising:a first buffer; and a second buffer;wherein the first and second buffers are alternately employed in providing coefficients to the ...

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Номер записи: 46
05-12-2013 дата публикации

NOISE REDUCTION APPARATUS

Номер: US20130322647A1
Автор: KIL Byung-Soo
Принадлежит: Samsung Eletronics Co., LtD.

An apparatus for reducing an Electro-Magnetic Interference (EMI) noise of an electronic device during supplying of power from a charging device. includes Common Mode Choking Coils (CMCCs) to permit the electronic device to conform to various national standards regarding emissions of radiation. The CMCC can be arranged in the charging device and a power supply line of the electronic device or in an earphone connected with the electronic device or interposed there between. The higher frequency of radiation noise is reduced while DC levels are not affected by the choking coils. The radiation noise being emitted from the electronic device at the time of interworking with the charging device is greatly reduced. 1. An apparatus for reducing an Electro-Magnetic Interference (EMI) noise of an electronic device while receiving power from a charging device , the apparatus comprising:at least one Common Mode Choking Coils (CMCC) arranged in the charging device within a path of the power supply line that supplies power to charge the electronic device, or within in an earphone connected with the electronic device wherein the at least one CMCC being arranged to reduce a radiation noise emitted out from the electronic device at the time of interworking with the charging device.2. The apparatus of claim 1 , wherein the charging device comprises:an adapter for converting Alternating Current (AC) power supplied from an external source into Direct Current (DC) power;a cable of a predetermined length having one end electrically coupled to the adapter; anda connector body comprising a connector that is arranged at the other end of the cable and is electrically coupled to a connector port of the electronic device,wherein the at least one CMCC is interposed in any one of the connector body, the cable, and the adapter that are in the power supply line of the charging device.3. The apparatus of claim 2 , wherein said at least one CMCC comprises a plurality of CMCCs at least one of which ...

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Номер записи: 47
12-12-2013 дата публикации

SILENCER DEVICE FOR A FLUID LINE AND HEATING UNIT HAVING A SILENCER DEVICE

Номер: US20130327584A1
Автор: Gerhardt Nikolaus, Neidenberger Peter, Pietrzky Marco, Trumler Harald, Zimmermann Werne
Принадлежит:

The present invention relates to a silencer device for a fluid line which comprises a resonator arrangement which comprises a first resonator tube comprising a first resonator chamber designed for a λ/4 damping of at least one sound wavelength, wherein the first resonator tube comprises a first longitudinal direction, two end walls facing each other in the first longitudinal direction and a first side wall extending between the end walls, and wherein the first resonator chamber is formed between the first side wall and the end walls of the first resonator tube. The resonator arrangement further comprises a second resonator tube comprising a second resonator chamber designed for a λ/4 damping of at least one sound wavelength, wherein the second resonator tube comprises a second longitudinal direction, two end walls facing each other in the second longitudinal direction and a second side wall extending between the end walls, and wherein the second resonator chamber is formed between the second side wall and the end walls of the second resonator tube. The invention further relates to a heating device comprising such a silencer device. 1. A silencer device for a fluid line comprising a resonator arrangement which comprises:{'b': '214', 'a first resonator tube comprising a first resonator chamber designed for damping of at least one sound wavelength, wherein the first resonator tube comprises a first longitudinal direction, two end walls facing each other in the first longitudinal direction and a first side wall extending between the end walls, and wherein the first resonator chamber is formed between the first side wall and the end walls of the first resonator tube,'}a second resonator tube comprising a second resonator chamber designed for λ/4 damping of at least one sound wavelength, wherein the second resonator tube comprises a second longitudinal direction, two end walls facing each other in the second longitudinal direction and a second side wall extending between ...

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Номер записи: 48
12-12-2013 дата публикации

ISOLATION AND BARRIER TYPE SOUND TREATMENT DEVICES

Номер: US20130327589A1
Автор: Carlisle Benjamin, Fischer David, Kauffman Mark, Smith Eric
Принадлежит:

An acoustic isolator is capable of being placed on a resting surface and receiving a sound producing device. The acoustic isolator includes a sheet like barrier member having a first surface and a second surface and a thickness of less than about 0.375 inches. The barrier member is composed of a plastic material. A sheet like fiber based fabric member has a first surface coupled to the second surface of the barrier member to form a laminated sheet having at least two layers. Also, a paintable acoustic barrier sheet is capable of being attached to and covering a room surface member, and receiving a paint material to permit the user to choose the color of covered room surface member by applying paint thereto. The paintable acoustic barrier comprises a sheet like barrier member having a first surface, a second surface and a thickness of less than about 0.2 inches. The barrier member is comprised of a first plastic material. A sheet like plastic barrier second member is composed of a second plastic material and has a first surface coupled to the second surface of the barrier member to form a laminate having at least two layers, and a second surface. The second surface is capable of receiving paint in a manner that permits the paint to adhere to the first surface in an even aesthetically pleasing manner. 1. An acoustic isolator capable of being placed on a resting surface and receiving a sound producing device , the acoustic isolator comprising:a. a sheet like barrier member having a first surface and a second surface and a thickness of less than about 0.375 inches, the barrier being comprised of a plastic material, andb. a sheer like fiber based fabric member having a first surface coupled to the second surface of the barrier member to form a laminated sheet having at least two layers.2. The acoustic isolator of wherein the barrier member comprises a vinyl acetate barrier member.3. The acoustic isolator of wherein the vinyl acetate barrier member comprises a mineral ...

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Номер записи: 49
19-12-2013 дата публикации

WATERPROOF SOUND-TRANSMITTING MEMBRANE AND ELECTRICAL PRODUCT

Номер: US20130333978A1
Автор: Abe Yuichi, Furuyama Satoru, Karube Yuki
Принадлежит: NITTO DENKO CORPORATION

Provided is a waterproof sound-transmitting membrane including: a solid resin film having a plurality of through holes formed therein; and a treatment layer having water repellency and formed on at least one of two surfaces of the resin film that are opposite to each other in the thickness direction. The treatment layer has openings at positions corresponding to the through holes The air permeability of the waterproof sound-transmitting membrane is 100 seconds/100 mL or less in terms of Gurley number. 1. A waterproof sound-transmitting membrane comprising:a solid resin film having a plurality of through holes, the plurality of through holes extending through the solid resin film in a thickness direction of the solid resin film; anda treatment layer having water repellency, the treatment layer being formed on at least one of two surfaces of the resin film that are opposite to each other in the thickness direction, the treatment layer having openings at positions corresponding to the plurality of through holes, whereinthe waterproof sound-transmitting membrane has an air permeability of 100 seconds/100 mL or less in terms of Gurley number.2. The waterproof sound-transmitting membrane according to claim 1 , wherein the waterproof sound-transmitting membrane has a water entry pressure of 10 kPa or more when the water entry pressure is measured in accordance with JIS L 1092-B (high water pressure method).3. The waterproof sound-transmitting membrane according to claim 1 , wherein the treatment layer further has oil repellency.4. The waterproof sound-transmitting membrane according to claim 1 , wherein the resin film is made of at least one of a hydrolyzable resin and an oxidatively-destructible resin.5. The waterproof sound-transmitting membrane according to claim 4 , wherein the resin film is made of at least one selected from polyethylene terephthalate claim 4 , polycarbonate claim 4 , polyimide claim 4 , polyethylene naphthalate claim 4 , and polyvinylidene fluoride.6 ...

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Номер записи: 50
19-12-2013 дата публикации

Signal processing apparatus and signal processing method

Номер: US20130336500A1
Автор: Takashi Sudo
Принадлежит: Toshiba Corp

One embodiment provides a signal processing apparatus, including: a speaker; a vibration sensor; and a controller. The speaker is configured to output a sound. The vibration sensor is configured to detect a vibration that is caused by a solid propagation of the sound from the speaker, and to output a reference signal based on the detected variation. The controller is configured to perform a noise suppress control which suppresses a noise due to the vibration using the reference signal.

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Номер записи: 51
26-12-2013 дата публикации

PACKAGING OF ACOUSTIC VOLUME INCREASING MATERIALS FOR LOUDSPEAKER DEVICES

Номер: US20130341118A1
Автор: Jagsich Thomas, Papakyriacou Maria, STEINHAUSER Markus
Принадлежит: KNOWLES ELECTRONICS ASIA PTE. LTD.

There is provided an acoustic element () for placement in a sound path () of a loudspeaker device (), the acoustic element () comprising a container() and an acoustic volume increasing material() located in the container (). In an embodiment, the container () comprises wall portions with different physical characteristics. In other embodiments, the walls of the container () are made of the same material. 1. An acoustic element for placement in a sound path of a loudspeaker device , the acoustic element comprising:a container; andan acoustic volume increasing material located in the container.2. The acoustic element according to claim 1 , wherein the container comprises a first wall portion and a second wall portion claim 1 , the second wall portion having a physical characteristic different from the respective physical characteristic of the first wall portion.3. The acoustic element according to claim 2 , wherein the sound transmissibility of the first wall portion is higher than the sound transmissibility of the second wall portion.4. The acoustic element according to claim 2 , wherein the second wall portion is formed of a molded element.5. The acoustic element according to claim 2 , wherein:the second wall portion is cup-shaped, forming an opening; andthe first wall portion closes the opening.6. The acoustic element according to claim 1 , whereinthe container comprises a container wall that encloses a cavity containing the acoustic volume increasing material; andthe container wall is formed of a single wall material.7. The acoustic element according to claim 6 , whereinthe container wall is formed of a single sheet of the wall material; andthe single sheet of the wall material is folded to form the container).8. The acoustic element according to claim 1 , wherein the container has a predetermined three-dimensional shape.9. The acoustic element according to claim 1 , wherein the container being is at least partially formed of a filter material.10. A loudspeaker ...

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Номер записи: 52
02-01-2014 дата публикации

Test head for testing a workpiece having an ultrasonic transducer configuration containing a plurality of ultrasonic transducers and process for producing such a test head

Номер: US20140000371A1
Автор: Guenter Engl, Henning Heuer, Michael Kroening, Thomas Herzog
Принадлежит: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV, Intelligendt Systems and Services GmbH

A test head for testing a workpiece has an ultrasonic transducer configuration with a plurality of ultrasonic transducers. The test head further contains a carrier matched to a surface contour of the workpiece, a damping layer arranged on the carrier, and a flexible conductor foil configuration, which is arranged on the damping layer and has a number of electrically separated conductor tracks which corresponds to the number of transducer elements. The transducer elements are arranged on the conductor tracks alongside one another in at least one row, and in each case are electrically contact-connected to one of the conductor tracks.

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Номер записи: 53
02-01-2014 дата публикации

Sound Attenuating Composite Articles And Methods Of Making Same

Номер: US20140000980A1
Автор: ALLISON Timothy Joel, CARAWAY Robert Bradley, CARSON Timothy Michael, HOBBS Ephraim Jack
Принадлежит:

A sound attenuating composite article comprising an acoustic decoupler layer comprising a fiber substrate; a acoustic barrier layer comprising a filled polymeric material; and wherein the filled polymeric material is formed in place on and bonded to the fiber substrate at one or more localized areas on the fiber substrate. A method of forming a sound attenuating composite article comprising providing a fiber substrate, wherein the fiber substrate provides a acoustic decoupler layer; providing a filled polymeric material, wherein the filled polymeric material provides an acoustic barrier layer; and forming the filled polymeric material in place on the fiber substrate at one or more localized areas on the fiber substrate and bonding the filled polymeric material to the fiber substrate at the one or more localized areas. 1. A sound attenuating composite article comprising:an acoustic decoupler layer comprising a fiber substrate;a acoustic barrier layer comprising a filled polymeric material; andwherein the filled polymeric material is formed in place on and bonded to the fiber substrate at one or more localized areas on the fiber substrate.2. The article of wherein:the filled polymeric material is formed in place on and bonded to the fiber substrate from reactive components which react to form a thermoset polymer.3. The article of wherein:the filled polymeric material comprises a polyurethane polymer.4. The article of wherein:the filled polymeric material is spray formed in place to the fiber substrate.5. The article of wherein:the filled polymeric material is spray formed in place on the fiber substrate and without use of a forming surface other than a surface of the fiber substrate.6. The article of wherein:the filled polymeric material includes at least one inorganic mineral filler.7. The article of wherein:the at least one inorganic mineral filler is present in a range of 50-80% by weight of the filled polymeric material.8. The article of wherein:{'sup': '2', 'the ...

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Номер записи: 54
02-01-2014 дата публикации

INFORMATION TERMINAL AND COMPUTER PROGRAM PRODUCT

Номер: US20140003612A1
Автор: Kaji Koichi, SAITO Kazuyuki, Sudo Takashi
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, information terminal includes: first audio input module; first audio output module; second audio input module; audio processor; and second audio output module. The first audio input module receives an external sound from an external information terminal connected to the information terminal via an external network. The first audio output module outputs the external sound. The second audio input module receives sounds transmitted from a sound input device of each information terminal within a group connected to the information terminal via the internal network. The audio processor synthesizes the in-group sounds to generate a single input sound, and removes an echo component from the input sound. Here, the echo component is caused due to the external sounds output from the sound output device. The second audio output module outputs the input sound from which the echo component is removed to the external information terminal. 1. An information terminal comprising:a first audio input module configured to receive an external sound transmitted through an external network from an external information terminal connected to the information terminal via the external network;a first audio output module configured to output the external sound received by the first audio input module from a sound output device;a second audio input module configured to receive sounds transmitted through an internal network from a sound input device of each information terminal within a group connected to the information terminal via the internal network;an audio processor configured to synthesize the in-group sounds received from the each information terminal within the group by the second audio input module to generate a single input sound, and to remove an echo component from the input sound, the echo component being caused due to the external sounds output from the sound output device; anda second audio output module configured to output the input sound from which ...

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Номер записи: 55
02-01-2014 дата публикации

NEONATAL INCUBATOR

Номер: US20140003614A1
Автор: Fuller Chris, Levitov Alex
Принадлежит:

A neonatal incubator with sound canceling features to minimize injury to the neonate. Internally developed sounds and external ambient noise are cancelled at the location of the infant's head. 1. A neonatal incubator for an infant comprising:an enclosure having a bottom and a close fitting top;said bottom adpted to receive a neonatal cushion, for positioning and orienting said infant;a sound output transducer positioned proximate said infants head;a first microphone positioned proximate said infants head;a reference microphone positioned outside said enclosure;an accelerometer coupled to said enclosure;said first and reference microphones and said accelerometer and said sound output transducer coupled to a feed forward active noise canceling network (ANC) for reducing sound pressure levels at the location of said infants head.2. The device of further comprising:a fan located within said enclosure;a shaft encoder coupled to said fan and said ANC for supplying a proxy for fan noise directly to said ANC. This case is the Utility Application conversion of U.S. Provisional Application 61 /569,384, filed Dec. 12, 2011.Neonatal intensive care units are noisy places and it is believed that exposure to high sound levels can injure premature babies or other newborn Typically neonates needing intensive medical care are typically sheltered in an enclosure called an “incubator”. The typical incubator has a bed for the neonate within a Plexiglas enclosure. The child lies on the bed and the atmosphere in the incubator is circulated and controlled for heat level. Most incubators are ventilated by a fan system integrated into the incubator and operated automatically with a closed loop feed back system. Many incubators also have a device for respiratory support for the child closely associated with the enclosure and typically attached to it. In general the heating, ventilation and respiratory support equipment all contribute noise to the enclosure. Although multiple wall enclosures ...

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Номер записи: 56
09-01-2014 дата публикации

METHOD AND DAMPING ELEMENT FOR REDUCING THE NATURAL VIBRATION OF A COMPONENT

Номер: US20140008146A1
Автор: FUHRMANN Bernd, Grevener Christoph, Hardt Christian, Kornacki Zdislaw, LAWRENCE Petra, OBST Heike Ursula, Patsouras Dimitrios
Принадлежит: FAIST CHEMTEC GMBH

The invention relates to a method for the reduction of the natural vibration (resonance) of a component (). According to the invention a vibration behavior of component () is determined, wherein to each of the positions having vibration amplitudes, which exceed a preset threshold value, an attenuation element () is locally mounted, which is formed as a multilayered adhesive element including a support layer () and a self-adhesive damping mass. Moreover the invention relates to an attenuation element () for the reduction of the natural vibrations of a component (). According to the invention the attenuation element () is formed as a multilayered adhesive element of a support layer () and a self-adhesive damping mass (), wherein the support layer () is formed of a bend-resistant material and the damping mass () preferably is formed of butyl rubber. 1. A method for the reduction of the natural vibrations of a component , wherein , a vibration behavior of the component is determined and an attenuation element is mounted in a spot-like manner with positional accuracy to each of the positions thereby determined , where vibration amplitudes exceeding a preset threshold value occur , the attenuation element being formed as a multilayered adhesive element including a support layer and a self-adhesive damping mass.2. The method according to claim 1 , wherein claim 1 , the vibration behavior is determined in a simulation.3. The method according to claim 1 , wherein claim 1 , the vibration behavior is determined by way of laser scanning vibrometry.4. The method according to claim 1 , wherein claim 1 , the attenuation element is mounted to component manually and/or in an automated manner.5. The method according to claim 1 , wherein claim 1 , the attenuation element is mounted separately from a support element and to the component in an automated manner.6. The method according to claim 1 , wherein claim 1 , the attenuation element is formed as a multilayered adhesive element of a ...

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Номер записи: 57
16-01-2014 дата публикации

SPEAKER DEVICE WITH VIBRATION ABSORBING FUNCTION AND AUDIO DISPLAY DEVICE THEREWITH

Номер: US20140014434A1
Автор: Chen Chih-Hsin, Kuo Chang-Ming
Принадлежит: WISTRON CORPORATION

A speaker device with vibration absorbing function includes a main body and at least one damping mechanism. The main body is installed inside a first casing and a second casing for generating sound. The at least one damping mechanism is connected to the main body and includes a sheathing member, a sleeve member and a resilient member. The sheathing member is disposed on the first casing and located in a position near the main body. The sleeve member is connected to the main body and sheathes the sheathing member in a slidable manner for transmitting vibration generated by the main body as generating sound. Two ends of the resilient member are respectively installed inside the sheathing member and inside the sleeve member for resiliently abutting against the sleeve member, so as to absorb the vibration transmitted from the sleeve member as the main body generates sound. 1. A speaker device adapted to an audio display device , the audio display device comprising a first casing and a second casing , the speaker device comprising:a main body installed inside the first casing and the second casing for generating sound; and a sheathing member disposed on the first casing and located in a position near the main body;', 'a sleeve member connected to the main body and sheathing the sheathing member in a slidable manner, the sleeve member being for transmitting vibration generated by the main body as generating sound; and', 'a resilient member with two ends respectively installed inside the sheathing member and inside the sleeve member, the resilient member being for resiliently abutting against the sleeve member, so as to absorb the vibration transmitted from the sleeve member as the main body generates the sound., 'at least one damping mechanism connected to the main body, the at least one damping mechanism comprising2. The speaker device of claim 1 , wherein the at least one damping mechanism further comprising:a resilient arm resiliently connected to the sleeve member and ...

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Номер записи: 58
16-01-2014 дата публикации

TORSIONAL VIBRATION DAMPER WITH ARC SPRING AND END CAP

Номер: US20140014435A1
Автор: Kombowski Eugen
Принадлежит:

An end cap for an arc spring in a torsional vibration damper having a cylindrical section for engaging with the arc spring and a radial section at one end of the cylindrical section for engaging with an input or output side of the torsional vibration damper, the end cap being producible by shaping from a metal sheet. A torsional vibration damper for elastic transmission of torque between an input side and an output side including the described end cap for transmission of force between one of the sides and the arc spring. 1135125100. An end cap () for an energy storage device () in a torsional vibration damper () , comprising:{'b': 210', '410', '125, 'a cylindrical section (, ) for engaging with the energy storage device (); and,'}{'b': 235', '210', '410', '110', '115', '100', '135, 'a radial section () at one end of the cylindrical section (, ) for engaging with an input () or an output side () of the torsional vibration damper (); wherein the end cap () can be produced by shaping from a metal sheet.'}2135135. The end cap () recited in claim 1 , wherein the end cap () is designed in a single piece and with a uniform thickness.3135215210215225. The end cap () recited in claim 1 , further comprising an additional cylindrical section () claim 1 , wherein the two cylindrical sections ( claim 1 , ) extend coaxially in relation to each other and are joined to each other at corresponding ends by means of a floor section ().4135210410125. The end cap () recited in claim 1 , wherein the cylindrical section ( claim 1 , ) is set up to engage with the arc spring () with a clamping fit at its radial outer side.5135210410125. The end cap () recited in claim 1 , wherein the cylindrical section ( claim 1 , ) is set up to fit closely at one axial end of the arc spring ().6135245220135. The end cap () recited in claim 1 , further comprising a cutout () claim 1 , which extends concentrically to a longitudinal axis () of the end cap ().7100110115. The torsional vibration damper () for ...

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Номер записи: 59
16-01-2014 дата публикации

AUTOMOTIVE NOISE ATTENUATING TRIM PART

Номер: US20140014438A1
Автор: Bertolini Claudio, Castagnetti Claudio, Seppi, SR. Marco
Принадлежит: AUTONEUM MANAGEMENT AG

A sound attenuating trim part, including at least one insulating area with an acoustic mass-spring characteristics having at least a mass layer and a decoupling layer adjacent to the mass layer, whereby the mass layer consists of a porous fibrous layer and a barrier layer, with the barrier layer being located between the porous fibrous layer and the decoupling layer and all layers are laminated together, and whereby the porous fibrous layer at least in the insulating area has adjusted dynamic Young's modulus (Pa) such that the radiation frequency of is at least 3000 (Hz). 2. The part according to further comprising:at least one absorbing area with sound absorbing characteristics comprising at least a portion of the porous fibrous layer and wherein a thickness of a portion of the porous fibrous layer in the absorbing area is larger than a thickness of a portion of the porous fibrous layer in the insulating area.3. The part according to claim 1 , wherein the area weight AWof the porous fibrous layer is between 400 and 2000 (g/m).4. The part according to claim 1 , wherein the thickness tof the porous fibrous layer is between 1 and 10 (mm) in the insulating area.5. The part according to claim 1 , wherein at least a portion of an additional absorbing layer contacts the porous fibrous layer.6. The part according to wherein claim 5 , the at least a portion of the additional absorbing layer is covered with a scrim layer.7. The part according to claim 1 , wherein the area weight of the barrier layer is between 500 and 2000 (g/m).8. The part according to claim 1 , wherein the porous fibrous layer is at least partially covered with a scrim layer.9. The part according to claim 5 , wherein at least one of a decorative layer or a carpet layer contacts at least one of the porous fibrous layer and the additional absorbing layer.10. The part according to claim 1 , wherein the part is used as at least one of an insulator claim 1 , a combined insulator and adsorber claim 1 , an ...

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Номер записи: 60
30-01-2014 дата публикации

Vibro-Acoustic Attenuation or Reduced Energy Transmission

Номер: US20140027199A1
Автор: Claeys Claus, Desmet Wim, Pluymers Bert
Принадлежит: Katholieke Universiteit Leuven

Vibro-acoustic attenuation or reduced energy transmission. The present invention relates to devices that display frequency zones of strong vibro-acoustic attenuation or reduced energy transmission. This can be used in particular, although not necessarily solely, in applications that require lightweight materials with good mechanical properties and good vibro-acoustic response or in applications that require materials with high sound reflection, absorption or sound isolation in a certain frequency band. 138-. (canceled)39. A device for vibro-acoustic attenuation and/or for reduced energy transmission , the device comprisinga host structureat least one mechanical resonator connected to the host structure, the at least one mechanical resonator being connected to one or more sides of the host structure by one or more connection legs,wherein the host structure comprises a plurality of cavities wherein the at least one mechanical resonator is connected therein and wherein the at least one connected resonator has a vibration mode predominantly excitable by out of plane movement of the host structure, whereby said out of plane movement is a movement in a perpendicular or normal direction, relative to the unexcited position.40. A device according to claim 39 , wherein said cavities are closed cavities.41. A device according to claim 39 , wherein more than one cavity comprises a mechanical resonator and/or wherein at least one cavity comprises more than one mechanical resonator.42. A device according to claim 39 , wherein the host structure comprise a core that is made up of rectangular claim 39 , cylindrical claim 39 , elliptical claim 39 , circular or polygonal unit cells or a combination of these unit cells.43. A device according to claim 39 , wherein the host structure is periodic or non-periodic.44. A device according to claim 39 , wherein the core of the host structure is a honeycomb structure.45. A device according to claim 44 , wherein the honeycomb structure ...

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Номер записи: 61
06-02-2014 дата публикации

Acoustic Structure

Номер: US20140034413A1
Автор: HONJI Yoshikazu, Kato Shinichi
Принадлежит: YAMAHA CORPORATION

An acoustic structure, including a pipe having a plurality of cavities that are partitioned by a partition, each of the plurality of cavities extending in a first direction that is a longitudinal direction of the pipe, wherein the pipe has at least one opening which permits the plurality of cavities to communicate with an exterior of the pipe, a position of each of the at least one opening in the first direction being a first position. 1. An acoustic structure , comprising a pipe having a plurality of cavities that are partitioned by a partition , each of the plurality of cavities extending in a first direction that is a longitudinal direction of the pipe ,wherein the pipe has at least one opening which permits the plurality of cavities to communicate with an exterior of the pipe, a position of each of the at least one opening in the first direction being a first position.2. The acoustic structure according to claim 1 , wherein the plurality of cavities have the same cross-sectional area taken along a plane perpendicular to the first direction.3. The acoustic structure according to claim 1 , wherein the plurality of cavities are arranged in a second direction perpendicular to the first direction.4. The acoustic structure according to claim 1 , wherein the pipe has a plurality of openings as the at least one opening claim 1 , each of the plurality of openings permitting a corresponding one of the plurality of cavities to communicate with the exterior of the pipe claim 1 , the position of each of the plurality of openings in the first direction being the first position.5. The acoustic structure according to claim 1 , wherein the at least one opening is an opening that permits the plurality of cavities to communicate with the exterior of the pipe claim 1 , the opening being located at the first position in the first direction.6. The acoustic structure according to claim 1 ,wherein each of the plurality of cavities is partially defined by a first flat plate portion and ...

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Номер записи: 62
13-02-2014 дата публикации

REAL-TIME NOISE REDUCTION APPARATUS FOR RADIO MONITORING SYSTEM

Номер: US20140044266A1
Автор: CHOI Yong Seok, KIM Sang Tae, LEE Seong Yun, PARK Gwang Moon, RO Haeng Sook, SUK Mi Kyung
Принадлежит:

The present invention provides a real-time noise reduction apparatus for a radio monitoring system, including a dual channel digitizing unit configured to convert signals, subject to frequency down-conversion and inputted to two channels, into digital signals and a Digital Signal Processor (DSP) configured to reduce noise from time sample regions of the signals, received from the dual channel digitizing unit, in a time domain using a correlation method between samples through the delayed feedback means. 1. A real-time noise reduction apparatus for a radio monitoring system , comprising:a dual channel digitizing unit configured to convert signals, subject to frequency down-conversion and inputted to two channels, into digital signals; anda Digital Signal Processor (DSP) configured to reduce noise in a time domain using a correlation between samples through feedback, from time sample regions, of the signals received from the dual channel digitizing unit.2. The real-time noise reduction apparatus of claim 1 , wherein the dual channel digitizing unit comprises:a dual channel digitizer configured to convert the signals, received from the two channels, into the digital signals; anda clock generation unit configured to provide a sampling clock to the dual channel digitizer.3. The real-time noise reduction apparatus of claim 2 , wherein the clock generation unit generates the sampling clock variably in response to the signals inputted to the two channels.4. The real-time noise reduction apparatus of claim 2 , wherein the dual channel digitizer further comprises a switching unit configured to enable a reference noise level claim 2 , randomly generated from the two channels claim 2 , to be used as a reference noise channel for a correlation comparison.5. The real-time noise reduction apparatus of claim 1 , wherein the DSP comprises a noise reduction algorithm processing unit for reducing noise from the signals inputted to the two channels using a time recursive noise ...

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Номер записи: 63
20-02-2014 дата публикации

Acoustic Cover Assembly

Номер: US20140048351A1
Автор: Banter Chad
Принадлежит:

An acoustic protective cover assembly comprising a porous membrane and an acoustic gasket is disclosed. The porous membrane is bonded to the acoustic gasket at a peripheral region, the membrane is left unhanded at a central region. The acoustic gasket comprises a composite of a porous polytetrafluoroethylene (PTFE) polymer matrix of polymeric nodes interconnected by fibrils, resilient expandable microspheres embedded within the matrix. 1. An acoustic protective cover assembly comprising:a. an acoustic gasket comprising a composite of a porous expanded polytetrafluoroethylene (PTFE) polymer matrix having polymeric nodes interconnected by fibrils and resilient expandable microspheres within the matrix, andb. cover material bonded to said acoustic gasket at a peripheral region of the cover and unbonded at a central region of the cover.2. The acoustic cover assembly of wherein the cover material comprises a membrane.3. The acoustic cover assembly of wherein the cover material comprises porous expanded PTFE.4. The acoustic cover assembly of wherein the cover material is oleophobic.5. The acoustic cover assembly of wherein the cover material is selected from the group consisting of non-porous films claim 1 , woven fabrics and non-woven materials.6. The acoustic protective cover assembly of claim 1 , wherein the acoustic gasket further comprises an elastomer disposed within the matrix.7. The acoustic protective cover assembly of in which the elastomer comprises silicone.8. The acoustic protective cover assembly of in which the gasket material and cover material are bonded together with a double-sided pressure sensitive adhesive at the perimeter of the cover material.9. An acoustic protective cover assembly comprising: i. a porous polytetrafluoroethylene (PTFE) polymer matrix having polymeric nodes interconnected by fibrils,', 'ii. resilient expandable microspheres embedded within the matrix, and', 'iii. elastomer disposed within the matrix, 'a. an acoustic gasket ...

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Номер записи: 64
20-02-2014 дата публикации

MULTILAYER BACKING ABSORBER FOR ULTRASONIC TRANSDUCER

Номер: US20140050054A1
Автор: Thompson Mitchell L., TODA Minoru
Принадлежит: MEASUREMENT SPECIALTIES, INC.

A multilayer backing absorber for use with an ultrasonic transducer comprises a plurality of absorber elements, each absorber element having at least one metal layer and at least one adhesive layer, wherein the backing absorber is adapted to be coupled to a vibrating layer of the ultrasonic transducer. 1. A backing absorber for use with an ultrasonic transducer , comprising:a first absorber element having at least one homogeneous metal layer and at least one adhesive layer; anda second absorber element having at least one homogeneous metal layer and at least one adhesive layer,wherein said backing absorber is adapted to be coupled to a vibrating layer of said ultrasonic transducer, andwherein said first and second absorber elements are effective to dampen ultrasonic signals emitted by said vibrating layer when said backing absorber is coupled to said vibrating layer.2. The backing absorber of claim 1 , wherein each absorber element further includes a polymer layer.3. The backing absorber of claim 2 , wherein each of said at least one metal layers is deposited on a corresponding one of said polymer layers to form a periodic grating of metal strips wherein the direction and period of the grating is the same for each absorber element.4. The backing absorber of claim 3 , wherein the vibrating layer comprises a 2-2 PZT composite having a plurality of elongated bars of PZT material and wherein the direction of the elongated metal area of the grating is perpendicular to said PZT bars.5. The backing absorber of claim 2 , wherein each of said at least one metal layers is deposited on a corresponding one of said polymer layers to form a periodic grating of metal strips wherein the direction or period of the grating is different for each absorber element.6. The backing absorber of claim 5 , wherein said direction of said grating is positioned at a 90 degree angle relative to the direction of the grating of each adjacent absorber element.7. The backing absorber of claim 2 , ...

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Номер записи: 65
27-02-2014 дата публикации

COMPLEX SPEAKER SYSTEM

Номер: US20140056436A1
Автор: KIM Dong Wan
Принадлежит:

A complex speaker system includes a conical speaker including a recessed section at a surface thereof and configured to receive a sound-playback signal and reproduce sound and a distributed mode speaker installed in the recessed section of the conical speaker and configured to share the sound-playback signal input into the conical speaker. 1. A complex speaker system , comprising:a conical speaker including a recessed section on a surface thereof and configured to receive a sound-playback signal to reproduce a sound; anda distributed mode speaker installed in the recessed section of the conical speaker and configured to share the sound-playback signal input into the conical speaker.2. The complex speaker system according to claim 1 , further comprising a filter configured to remove a frequency component of a low-pitched tone band from the sound-playback signal input into the distributed mode speaker and output the frequency component to the distributed mode speaker.3. The complex speaker system according to claim 1 , wherein the distributed mode speaker includes a rectangular planar diaphragm.4. The complex speaker system according to claim 3 , wherein the rectangular planar diaphragm includes a honeycomb structure.5. The complex speaker system according to claim 2 , wherein the filter is configured to remove a frequency component in a range of 20 Hz to 600 Hz.6. The complex speaker system according to claim 2 , wherein the filter includes a condenser.7. The complex speaker system according to claim 1 , wherein an axial center of the distributed mode speaker and an axial center of the conical speaker are disposed on the same line.8. The complex speaker system according to claim 1 , further comprising a support frame including one end coupled to a frame of the conical speaker claim 1 ,wherein a frame of the distributed mode speaker is coupled to the other end of the support frame.9. The complex speaker system according to claim 8 , wherein the support frame further ...

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Номер записи: 66
06-03-2014 дата публикации

METHOD FOR ADAPTIVE AUDIO SIGNAL SHAPING FOR IMPROVED PLAYBACK IN A NOISY ENVIRONMENT

Номер: US20140064507A1
Автор: SU ANTHONY JIMING, SU HUAN-YU
Принадлежит:

Provided is a method for adaptively enhancing an end-user's perceived quality, or quality of experience (QoE), of speech and other audio under ambient noise conditions. The method comprises the steps of determining the ambient noise characteristics on a continuous basis to capture the time varying nature of ambient noises, and adaptively determining the most optimal signal shaping to be applied to the audio/speech signal to produce the most appropriate enhancement to compensate for the ambient noise impairment. The method also comprises a signal shaping technique by using an infinite impulse response (IIR) filter that performs the signal modification with a low delay; a multi-level automatic gain control (AGC); and a controlled amplitude clipping module that assures samples are below a certain limit; and outputs the modified signal for playback through a loudspeaker or the like. 1. A method for improving the quality of a far-end audio signal for playback on a device in a noisy environment , said device having a speaker and a microphone , said method comprising the steps of:monitoring a near-end noise audio signal through the microphone;determining near-end noise characteristics from said near-end noise audio signal;identifying an optimal signal shaping filter based on said near-end noise characteristics;applying said optimal signal shaping filter to the far-end audio signal to produce an optimized far-end audio signal;outputting said optimized far-end audio signal to the speaker.2. The method of claim 1 , further comprising the step of storing a plurality of pre-determined signal shaping filters; andsaid identifying step is performed by selecting one of said plurality of pre-determined signal shaping filters based on said near-end noise characteristics.3. The method of claim 2 , wherein said plurality of predetermined signal shaping filters each effectuate a different spectrum shaping gain increase when applied to the far-end audio signal in said applying step.4. ...

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Номер записи: 67
06-03-2014 дата публикации

SYSTEM FOR ADAPTIVE AUDIO SIGNAL SHAPING FOR IMPROVED PLAYBACK IN A NOISY ENVIRONMENT

Номер: US20140064508A1
Автор: SU ANTHONY JIMING, SU HUAN-YU
Принадлежит:

Provided is a system for adaptively enhancing an end-user's perceived quality, or quality of experience (QoE), of speech and other audio under ambient noise conditions. The system comprises the steps of determining the ambient noise characteristics on a continuous basis to capture the time varying nature of ambient noises, and adaptively determining the most optimal signal shaping to be applied to the audio/speech signal to produce the most appropriate enhancement to compensate for the ambient noise impairment. The system also comprises a signal shaping technique by using an infinite impulse response (IIR) filter that performs the signal modification with a low delay; a multi-level automatic gain control (AGC); and a controlled amplitude clipping module that assures samples are below a certain limit; and outputs the modified signal for playback through a loudspeaker or the like. 1. A mobile phone system for improving the perceived quality of a far-end speech signal for playback in a noisy environment , said system comprising:a microphone capable of monitoring near-end noise signals;a characteristics module for determining near-end noise characteristics from said near-end noise signals;a first memory device used for storing data representing said near-end noise characteristics;a selection module for identifying an optimal signal shaping filter used to optimize said far-end speech signal based on said near-end noise characteristics;a filter-shaping module for applying said optimal signal shaping filter to the far-end speech signal to produce an optimized far-end speech signal; anda digital to analog converter for outputting said optimized far-end speech signal to a loudspeaker for optimized playback in a noisy environment.2. The system of claim 1 , further comprising a second memory device for storing a plurality of pre-determined signal shaping filters; andsaid selection module selects said optimal shaping filter from said second memory device based on said near-end ...

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Номер записи: 68
06-03-2014 дата публикации

COMPUTER PROGRAM PRODUCT FOR ADAPTIVE AUDIO SIGNAL SHAPING FOR IMPROVED PLAYBACK IN A NOISY ENVIRONMENT

Номер: US20140064509A1
Автор: SU ANTHONY JIMING, SU HUAN-YU
Принадлежит:

Provided is a computer program product for adaptively enhancing an end-user's perceived quality, or quality of experience (QoE), of speech and other audio under ambient noise conditions. The computer program product comprises the steps of determining the ambient noise characteristics on a continuous basis to capture the time varying nature of ambient noises, and adaptively determining the most optimal signal shaping to be applied to the audio/speech signal to produce the most appropriate enhancement to compensate for the ambient noise impairment. The computer program product also comprises a signal shaping technique by using an infinite impulse response (IIR) filter that performs the signal modification with a low delay; a multi-level automatic gain control (AGC); and a controlled amplitude clipping module that assures samples are below a certain limit; and outputs the modified signal for playback through a loudspeaker or the like. 1. A non-transitory computer program product comprising a computer useable medium having computer program logic stored therein , said computer program logic for enabling a computer processing device to improve the quality of a far-end audio signal for playback on a device in a noisy environment , said device having a speaker and a microphone , said computer program product comprising:code for monitoring a near-end noise audio signal through the microphone;code for determining near-end noise characteristics from said near-end noise audio signal;code for identifying an optimal signal shaping filter based on said near-end noise characteristics;code for applying said optimal signal shaping filter to the far-end audio signal to produce an optimized far-end audio signal;code for outputting said optimized far-end audio signal to the speaker.2. The non-transitory computer program product of claim 1 , further comprising code for storing a plurality of pre-determined signal shaping filters; andwherein said code for identifying an optimal signal ...

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Номер записи: 69
13-03-2014 дата публикации

PREVENTION OF ANC INSTABILITY IN THE PRESENCE OF LOW FREQUENCY NOISE

Номер: US20140072135A1
Автор: Bajic Vladan, Jensen Thomas M.
Принадлежит: Apple Inc.

An active noise control (ANC) processor has an adaptive filter that uses a reference signal to produce an anti-noise signal, and an error signal to evaluate cancellation performance. An adaptive filter algorithm engine configures the filter coefficients of the adaptive filter, in accordance with pre-shaped versions of the error and reference signals. The pre-shaping filter has a high-pass transfer function and enables the adaptive algorithm engine to increase noise cancellation performance in a high frequency band during the presence of focused or narrow-band noise energy in a low frequency band. Other embodiments are also described and claimed. 1. An audio apparatus comprising:a reference microphone to produce a reference signal;an error microphone to produce an error signal; and an adaptive filter to use the reference signal and produce an anti-noise signal,', 'an adaptive filter algorithm engine to configure digital filter coefficients of the adaptive filter in accordance with signals at a first input and a second input,', 'a first pre-shaping filter to filter the reference signal at the first input,', 'a second pre-shaping filter to filter the error signal at the second input,', 'wherein each of the first and second pre-shaping filters has a high pass transfer function that is designed to suppress energy in a low frequency band, relative to a high frequency band, wherein the first and second pre-shaping filters together enable the engine to adapt the adaptive filter to thereby produce substantial anti-noise in the high frequency band during the presence of focused or narrowband noise energy in the low frequency band., 'an active noise control (ANC) processor having'}2. The audio apparatus of wherein the low frequency band is 5 Hz to 400 Hz claim 1 , and the high frequency band is 400 Hz to 1 kHz.3. The audio apparatus of wherein the focused noise energy is one of the group consisting of car noise claim 1 , as picked up by the reference mic while inside a car ...

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Номер записи: 70
13-03-2014 дата публикации

HEARING AID SYSTEM FOR REMOVING FEEDBACK NOISE AND CONTROL METHOD THEREOF

Номер: US20140072156A1
Автор: KWON You Jung
Принадлежит: Algor Korea Co., Ltd.

Provided is a hearing aid system including: a first processor that fast Fourier transforms N input signal tone data output from an input buffer memory, and then executes nonlinear compression; a second processor that inverse fast Fourier transforms amplitude spectrum data; an output buffer memory that stores the voice signal tone data, until the number of the voice signal tone data is N; and a digital-to-analog (D/A) converter that converts the digital voice signal tone data into an analog signal, to then output the analog signal to a receiver. Thus, certain ambient noise due to an acoustic feedback signal and a narrow frequency band that occur in a hearing aid is removed, to thus reduce discomforts due to the acoustic feedback noise of the hearing aid for hearing aid users, and to thereby significantly improve speech discrimination. 1. A hearing aid system comprising:an analog-to-digital (A/D) converter that converts an analog input signal tone, that is, speaker's voice signals input from a microphone of the hearing aid system into a digital signal;an input buffer memory that stores the digital input signal tone data output from the A/D converter, to then output the stored digital input signal tone data when the number of the stored digital input signal tone data is set as an integer N;a first processor that fast Fourier transforms N input signal tone data output from the input buffer memory, and then executes nonlinear compression;a second processor that inverse fast Fourier transforms amplitude spectrum data that has been non-linear compressed and input from the first processor, and then outputs the inverse fast Fourier transformation result;an output buffer memory that stores the voice signal tone data from which feedback noise has been removed from the second processor, until the number of the voice signal tone data is N, to then output the stored voice signal tone data;a digital-to-analog (D/A) converter that converts the digital voice signal tone data from ...

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Номер записи: 71
20-03-2014 дата публикации

Localization of a Wireless User Equipment (UE) Device Based on Audio Masking

Номер: US20140079223A1
Автор: Dhakal Sagar, Nguyen Nam
Принадлежит: RESEARCH IN MOTION LIMITED

A scheme for localizing a wireless user equipment (UE) device's relative position with respect to a spatial configuration based on audio signatures received via a multi-channel audio system, e.g., an audio system of a vehicle or home entertainment system. The wireless UE device is configured to capture the audio signatures masked within a background audio signal received from a head unit. The wireless UE device includes a persistent memory module having program instructions for processing the background audio signal including the masked signatures, which may comprise either channel-specific pseudo-random noise (PN) sequences or single-frequency tones, in order to compute time delays or power levels associated with the speaker channels. A localization module is configured to estimate the wireless UE device's relative position based on the time delays or power levels. 1. A method operating at a wireless user equipment (UE) device , said method comprising:capturing a plurality of audio signatures received from a head unit via an audio transmission system having a plurality of speaker channels, wherein said plurality of audio signatures are masked within a background audio signal received from said head unit; andprocessing said plurality of audio signatures for determining said wireless UE device's location relative to a spatial configuration.2. The method of wherein said plurality of audio signatures comprises a plurality of pseudo-random noise (PN) sequences claim 1 , each corresponding to a speaker channel of said plurality of speaker channels.3. The method of wherein said processing comprises:segmenting said background audio signal including masked PN sequences into a plurality of frames, each frame having a length;summing said plurality of frames to form a single combined frame;correlating said single combined frame with original PN sequences corresponding to said speaker channels to determine a delay associated with each speaker channel, whereby a plurality of ...

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Номер записи: 72
20-03-2014 дата публикации

Localization of a Wireless User Equipment (UE) Device Based on Out-Of-Hearing Band Audio Signatures for Ranging

Номер: US20140079224A1
Автор: Dhakal Sagar, Nguyen Nam
Принадлежит: RESEARCH IN MOTION LIMITED

A scheme for localizing a wireless user equipment (UE) device's relative position with respect to a spatial configuration based on audio signatures received via a multi-channel audio system, e.g., an audio system of a vehicle or home entertainment system. The wireless UE device is configured to capture the audio signatures received from a head unit that are placed in an out-of-hearing band of a captured signal. The wireless UE device includes a persistent memory module having program instructions for processing the captured signal including the out-of-band signatures, which may comprise either channel-specific pseudo-random noise (PN) sequences or single-frequency tones, in order to compute time delays or power levels associated with the speaker channels. A localization module is configured to estimate the wireless UE device's relative position based on the time delays or power levels. 1. A method operating at a wireless user equipment (UE) device , said method comprising:capturing a plurality of audio signatures received from a head unit via an audio transmission system having a plurality of speaker channels, wherein said plurality of audio signatures are in an out-of-hearing band of a captured signal; andprocessing said plurality of audio signatures for determining said wireless UE device's location relative to a spatial configuration.2. The method of wherein said plurality of audio signatures comprises a plurality of pseudo-random noise (PN) sequences claim 1 , each corresponding to a speaker channel of said plurality of speaker channels.3. The method of wherein said processing comprises:segmenting said captured signal including said PN sequences in said out-of-hearing band into a plurality of frames, each frame having a length;summing said plurality of frames to form a single combined frame;correlating said single combined frame with original PN sequences corresponding to said speaker channels to determine a delay associated with each speaker channel, whereby a ...

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Номер записи: 73
27-03-2014 дата публикации

CYMBAL SILENCER

Номер: US20140083276A1
Автор: Yoshino Kiyoshi
Принадлежит: ROLAND CORPORATION

A cymbal silencer reduces a percussive sound of a cymbal by abutting the cymbal silencer against the cymbal. The cymbal silencer includes a frame having an inner part, a connecting part and an outer part, and a first elastic member. The inner part has an insertion hole into which a bar-shaped rod for fixing the cymbal is inserted. One side of the connecting part is connected to the inner part and extends toward a direction away from the insertion hole. The outer part is connected to the other side of the connecting part and is disposed at a position further away from the insertion hole than the one side of the connecting part. The outer part corresponds to the bow portion of the cymbal. The first elastic member is installed on one surface side of the outer part of the frame and is composed of the first elastic material. 1. A cymbal silencer , reducing a percussive sound of a cymbal by abutting against the cymbal , wherein the cymbal includes a cup-shaped bell portion sloping downward toward a peripheral of the bell portion in a radial direction and a ring-shaped bow portion extended in a flange shape from an outer edge of the bell portion and sloping downward toward a peripheral of the bow portion in the radial direction at a sloping angle less steep than that of the bell portion , the cymbal silencer comprising: an inner part having an insertion hole into which a bar-shaped rod for fixing the cymbal is inserted,', 'a connecting part of which one side is connected to the inner part and extended toward a direction away from the insertion hole viewed from a top view, and', 'an outer part connected to an other side of the connecting part and disposed further away from the insertion hole than the one side of the connecting part, and the outer part corresponds to the bow portion of the cymbal; and, 'a frame, comprising'}a first elastic member, installed on one surface side of the outer part of the frame and comprising a first elastic material,wherein the first elastic ...

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Номер записи: 74
27-03-2014 дата публикации

SOUNDPROOFING PLATE AND SOUNDPROOFING DEVICE PERMITTING AIR FLOW

Номер: US20140083796A1
Автор: Kitamura Yoshiharu
Принадлежит:

A soundproofing plate comprising a substrate having a substrate having at least one through hole formed therein; and a soundproofing device mounted on the through hole of the substrate. The soundproofing device has a multiplex structure having at least a first structure and a second structure nested therein. The first structure comprises a through hole (“first air passage hole”) disposed in the center and communicating with the through hole of the substrate, and a first sound collecting portion disposed at both ends or one end and having a larger size than the aperture area of the first air passage hole, and being arranged so as to reflect incident noise. The second structure comprises a through hole (“second air passage hole”) disposed in the center and communicating with the through hole of the substrate, and a second sound collecting portion disposed at both ends or one end and having a larger size than the aperture area of the second air passage hole, and being arranged so as to reflect incident noise. 1. A soundproofing plate comprising:a substrate having at least one through hole formed therein; anda soundproofing device mounted on the through hole of the substrate;the soundproofing device having a multiplex structure having at least a first structure and a second structure nested therein;the first structure comprising a through hole (“first air passage hole”) disposed in the center and communicating with the through hole of the substrate, and a first sound collecting portion disposed at both ends or one end and having a larger size than the aperture area of the first air passage hole, and being arranged so as to reflect incident noise; andthe second structure nested in the first structure, comprising a through hole (“second air passage hole”) disposed in the center and communicating with the through hole of the substrate, and a second sound collecting portion disposed at both ends or one end and having a larger size than the aperture area of the second air ...

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Номер записи: 75
27-03-2014 дата публикации

COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME

Номер: US20140083797A1
Автор: He Jing, Huang Xing-zhi
Принадлежит:

The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyarylate film, and a thermoplastic polyurethane elastomer attached to one surface of the polyarylate film. 1. A compound membrane comprising:a polyarylate film; anda thermoplastic polyurethane elastomer attached to one surface of the polyarylate film.2. The compound membrane as described in claim 1 , wherein the thermoplastic polyurethane elastomer partially overlaps the polyarylate film partly.3. The compound membrane as described in claim 1 , wherein the compound membrane comprises a central portion and a peripheral portion surrounding the central portion claim 1 , and the thermoplastic polyurethane elastomer overlaps the polyarylate film on a portion corresponding to the peripheral portion.4. An acoustic device comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a compound membrane as described in .'}5. A compound membrane claim 1 , comprising:a central portion comprising a polyarylate film;a peripheral portion surrounding the central portion, and comprising a polyarylate film attached with a thermoplastic polyurethane elastomer.6. The compound membrane as described in claim 5 , wherein the central portion further comprises a thermoplastic polyurethane elastomer attached to the polyarylate film. The disclosure described herein relates to acoustic devices, and more particularly to a compound membrane used in such an acoustic device capable of providing sound.Nowadays, speakers and/or microphones often comprise compound membranes which are basically a combination of layers of different materials or just a mixture of different materials.Generally, a membrane is formed by a single film or by hot pressing a piece of thermoplastic material, the rigidity of the membrane is not enough when vibrating. In addition, to increase the rigidity of the membrane, the usual method is to increase the thickness of the membrane. ...

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Номер записи: 76
27-03-2014 дата публикации

ULTRASONIC TRANSMISSION/RECEPTION UNIT, MANUFACTURING METHOD OF ULTRASONIC TRANSMISSION/RECEPTION UNIT, AND ULTRASONIC FLOW METER DEVICE

Номер: US20140086017A1
Автор: Adachi Akihisa, Morihana Hideaki, Nakano Makoto, Satou Masato
Принадлежит: Panasonic Corporation

An ultrasonic transmission/reception unit includes a metal plate, an acoustic matching member, a piezoelectric substrate, a first lead wire, a second lead wire, and a vibration suppression member containing a thermoplastic resin as a major component, the vibration suppression member being configured to cover, in a unitary manner, the other main surface of the metal plate, which is other than a portion of the other main surface to which the piezoelectric substrate is fastened, a surface of the piezoelectric substrate, an end surface of the metal plate, an outer peripheral portion of the one main surface of the metal plate, the first lead wire, and the second lead wire. 1. An ultrasonic transmission/reception unit comprising: 'an acoustic matching member fastened to one main surface of the metal plate;', 'a metal plate;'}a piezoelectric substrate fastened to the other main surface of the metal plate such that the piezoelectric substrate corresponds to a portion of the metal plate to which the acoustic matching member is fastened;a first lead wire connected to an end portion of the piezoelectric substrate which is more distant from the metal plate, to supply a voltage applied to the piezoelectric substrate;a second lead wire connected to the metal plate, to supply the voltage applied to the piezoelectric substrate; anda vibration suppression member containing a thermoplastic resin as a major component, the vibration suppression member being configured to cover, in a unitary manner, the other main surface of the metal plate, which is other than a portion of the other main surface to which the piezoelectric substrate is fastened, a surface of the piezoelectric substrate, an end surface of the metal plate, an outer peripheral portion of the one main surface of the metal plate, the first lead wire, and the second lead wire.2. The ultrasonic transmission/reception unit according to claim 1 , wherein the metal plate has a flat plate shape.3. The ultrasonic transmission/ ...

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Номер записи: 77
10-04-2014 дата публикации

Motor Vehicle Acoustic Insulator, Methods Of Manufacture And Use Thereof

Номер: US20140097035A1
Автор: LAHL John, McRoberts Terrence M., RYNTZ Rose Ann, STARLING Matt
Принадлежит: International Automotive Components Group North America, Inc.

An acoustic insulator for a motor vehicle is provided comprising a mass providing an acoustic barrier and a spring providing an acoustic absorber overlying the mass. The mass comprises a first acoustic mass layer underlying a second acoustic mass layer. The first acoustic mass layer is provided by a thermoplastic sheet having a thickness in a range of 0.5 mm to 1 mm. The second acoustic mass layer is provided at one or more localized areas formed in place on a backside surface of the first acoustic mass layer to increase an overall thickness of the mass at the one or more localized areas. The spring layer is formed in place on a backside of the second acoustic mass layer and the backside of the first acoustic mass layer. 1. An acoustic insulator for a motor vehicle comprising:a mass providing an acoustic barrier, the mass comprising a first acoustic mass layer underlying a second acoustic mass layer;the first acoustic mass layer provided by a thermoplastic sheet having a thickness in a range of 0.5 mm to 1 mm,the second acoustic mass layer provided at one or more localized areas formed in place on a backside surface of the first acoustic mass layer to increase an overall thickness of the mass at the one or more localized areas,a spring layer providing an acoustic absorber overlying the mass, wherein the spring layer is formed in place on a backside of the second acoustic mass layer and the backside of the first acoustic mass layer.2. The insulator of wherein:the second acoustic mass layer comprises a composition which is spray formed in place on the backside of the first acoustic mass layer at a plurality of localized areas.3. The insulator of wherein:the second acoustic mass layer spray formed in place on the backside of the first acoustic mass layer is spray formed in place without use of a forming surface other than the backside surface of the first acoustic mass layer.4. The insulator of wherein:the second acoustic mass layer composition spray formed in place on ...

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Номер записи: 78
04-01-2018 дата публикации

Interposer electrical interconnect with spring

Номер: US20180000448A1
Автор: Dino Francesco CUSCUNA
Принадлежит: Koninklijke Philips NV

An interposer with a spring on a surface of the interposer is disclosed. The spring may apply a force to a surface of a component adjacent to the interposer. The interposer may be secured to the surface by a fastener. The fastener may be offset from the center of the interposer. The fastener may be a fulcrum of a lever including the interposer and the spring. The spring may cause a portion of the interposer on the other side of the fastener from the spring to apply an increased amount of pressure to the surface to which the interposer is secured. A transesophageal exam ultrasound probe including an interposer is disclosed.

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Номер записи: 79
01-01-2015 дата публикации

HEADSET HAVING A MICROPHONE

Номер: US20150003623A1
Автор: Rasmussen Erik Witthøfft
Принадлежит:

Noise cancelling headsets and a method of improving audio sensitivity for a headset are disclosed. The headset comprises a speaker, a microphone unit comprising at least a first and a second microphone for picking up incoming sound and generating a first audio signal generated at least partly from the at least first microphone and a second audio signal being at least partly generated from the at least second microphone, a signal processor being configured to receive and analyse the first audio signal and the second audio signal to determine one or more equalization filter coefficients, an equalization filter configured to receive the second audio signal and the one or more equalization coefficients, and to equalize the second audio signal according to the determined one or more equalization filter coefficients to provide an output audio signal, wherein the one or more equalization filter coefficient are determined so as to approximate a power spectrum of the output audio signal to a power spectrum of the first audio signal. 1. A headset for voice communication , the headset comprisinga speaker,a microphone unit comprising at least a first and a second microphone for picking up incoming sound and generating a first audio signal generated at least partly from the at least first microphone and a second audio signal being at least partly generated from the at least second microphone,a signal processor being configured to receive and analyze the first audio signal and the second audio signal to determine one or more equalization filter coefficients, an equalization filter configured to receive the second audio signal and the one or more equalization coefficients, and to equalize the second audio signal according to the determined one or more equalization filter coefficients to provide an output audio signal, wherein the one or more equalization filter coefficient are determined so as to approximate a power spectrum of the output audio signal to a power spectrum of the ...

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Номер записи: 80
04-01-2018 дата публикации

METHOD FOR MANUFACTURING A SOUND TRANSDUCER FOR A FIELD DEVICE OF AUTOMATION TECHNOLOGY

Номер: US20180003536A1
Автор: Berger Andreas, Wiest Achim
Принадлежит:

The present disclosure relates to a method for manufacturing an ultrasonic transducer by exciting the sound wave via an electromechanical transducer disposed on a sensor body, determining a current propagation velocity of the sound wave on an exit surface of the sensor body, determining the difference between the current propagation velocity and the desired propagation velocity of the sound wave on the exit surface, determining difference between speed of sound in the sensor body and a desired speed of sound, removing material in the region of the exit surface of the sensor body, wherein the remaining material is dimensioned such that the current propagation speed of the sound wave on the exit surface of the sensor body, and/or the delay caused by the speed of sound in the sensor body, at least approximately agrees with the desired propagation speed of the sound wave on the exit surface. 112-. (canceled)13. A method for manufacturing an ultrasonic sensor for a field device of automation technology , the method comprising the steps:providing an electromechanical transducer arranged on a lateral surface of an oversized sensor body via at least one adapting layer such that a sound wave produced by the electromechanical transducer, after passing through the sensor body, propagates on an exit surface of the sensor body with a desired propagation velocity, or such that the sound wave produced by the electromechanical transducer propagates at a desired angle to a normal to the exit surface into a medium adjoining the exit surface;emitting the sound wave via the electromechanical transducer;determining a current propagation velocity of the sound wave on the exit surface or determining a current angle between the normal to the exit surface and a propagation direction of the sound wave in the medium;determining the difference between the current propagation velocity and the desired propagation velocity of the sound wave on the exit surface, or determining the difference ...

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Номер записи: 81
20-01-2022 дата публикации

FISH FINDER TRANSDUCER MOUNT APPARATUS

Номер: US20220018958A1
Автор: Wagner Stephen E.
Принадлежит:

A fish finder transducer mount apparatus for independently controlling a directional transducer and trolling motor includes a clamp body. A motor clamp is coupled to the clamp body. The motor clamp is selectively engageable with the clamp body and configured to secure the apparatus to a propeller shaft of a trolling motor. A directional transducer shaft is rotatably coupled to the clamp body and a directional transducer shaft bottom end of the directional transducer shaft to receive a directional transducer of a fish finder. A gearing system is coupled to the directional transducer shaft to rotate the directional transducer shaft. A handle is coupled to the gearing system. The handle comprises an extension portion secured by a user to manipulate the orientation of the directional transducer shaft. 1. A fish finder transducer mount apparatus comprising:a clamp body having a body front side, a body back side, a body a left side, a body right side, a body top side, and a body bottom side;a motor clamp coupled to the clamp body, the motor clamp being selectively engageable with the clamp body and configured to secure the apparatus to a propeller shaft of a trolling motor;a directional transducer shaft coupled to the clamp body, the directional transducer shaft being rotatably coupled to the clamp body, a directional transducer shaft bottom end of the directional transducer shaft being configured to receive a directional transducer of a fish finder;a gearing system coupled to the directional transducer shaft, the gearing system rotating the directional transducer shaft; anda handle coupled to the gearing system, the handle comprising an extension portion being secured by a user to manipulate the orientation of the directional transducer shaft.2. The fish finder transducer mount apparatus of further comprising a non-directional transducer bracket coupled to the clamp body claim 1 , the non-directional transducer bracket being selectively engageable with clamp body; and a ...

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Номер записи: 82
14-01-2016 дата публикации

ULTRASOUND BACKING MEMBER, ULTRASOUND PROBE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE ULTRASOUND BACKING MEMBER

Номер: US20160007961A1
Автор: KIM Sang-Min, LEE Sung-jae, LEE WON-HEE, NAM Gi-ung, SON Kwang-jin, SONG Kyung-hun
Принадлежит:

An ultrasound backing member, an ultrasound probe including the ultrasound backing member, and a method of manufacturing the ultrasound backing member are provided. The ultrasound probe includes an ultrasound module comprising a transducer that converts ultrasound waves into an electrical signal or vice versa, and a backing member obtained by filling a porous foam-type body with a backing material that absorbs the ultrasound waves generated by the ultrasound module. 1. An ultrasound probe comprising:an ultrasound module comprising a transducer that converts ultrasound waves into an electrical signal or vice versa; anda backing member obtained by filling a porous foam-type body with a backing material that absorbs the ultrasound waves generated by the ultrasound module.2. The ultrasound probe of claim 1 , wherein the foam-type body comprises a plurality of pores and a plurality of bridges which are connected to one another and located between the plurality of pores.3. The ultrasound probe of claim 1 , wherein the foam-type body comprises a heat-conductive material.4. The ultrasound probe of claim 1 , wherein the foam-type body comprises a metal.5. The ultrasound probe of claim 4 , wherein the metal comprises at least one selected from copper claim 4 , aluminum claim 4 , silver claim 4 , nickel claim 4 , iron claim 4 , gold claim 4 , and tungsten.6. The ultrasound probe of claim 1 , wherein a pore included in the foam-type body is connected to at least one of neighboring pores.7. The ultrasound probe of claim 1 , wherein a diameter of at least one of a plurality of pores included in the foam-type body is about 1 mm to about 10 mm.8. The ultrasound probe of claim 1 , wherein a porosity of the foam-type body is 50% or more.9. The ultrasound probe of claim 1 , wherein the backing material comprises epoxy resin.10. The ultrasound probe of claim 1 , wherein heat generated in the ultrasound module is discharged to the outside via the backing member.11. The ultrasound probe ...

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Номер записи: 83
20-01-2022 дата публикации

ACOUSTIC FILLER INCLUDING ACOUSTICALLY ACTIVE BEADS AND EXPANDABLE FILLER

Номер: US20220020349A1
Автор: Gavryushin Andrey, Sauer Juergen, Wagner Veronika
Принадлежит:

Aspects are disclosed of a filler for occupying a volume. The filler includes an expandable filler positioned in the volume so that it occupies a percentage of the volume. The expandable filler can permanently expand from a first dimension to a second dimension upon the application of an expansion trigger. The filler also includes an acoustic filler made up of a plurality of acoustically active beads positioned with the expandable filler in the volume so that the acoustic filler can adsorb gas flowing into the volume. Other embodiments are disclosed and claimed. 119-. (canceled)20. An audio speaker comprising:a housing defining a back volume behind a speaker driver, wherein the speaker driver can convert an electrical audio signal into a sound so that the sound can propagate through a gas in the back volume;an expandable filler positioned in the back volume so that it occupies a percentage of the volume of the back volume, wherein the expandable filler can permanently expand from a first dimension to a second dimension upon the application of an expansion trigger; andan acoustic filler positioned with the expandable filler in the back volume to adsorb the gas, the acoustic filler comprising a plurality of acoustically active beads.21. The audio speaker of wherein the expandable filler comprises an expandable coating positioned on at least one interior surface of the back volume.22. The audio speaker of wherein the expandable filler comprises a plurality of expandable beads mixed with the acoustically active beads.23. The audio speaker of wherein a density of the expandable beads is within 90-110% of a density of the acoustically active beads.24. The audio speaker of wherein an average size of the plurality of expandable beads is within an order of magnitude of an average size of the plurality of acoustically active beads.25. The audio speaker of wherein the expandable filler occupies between 0.5% and 20% of the volume of the back volume.26. The audio speaker of ...

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Номер записи: 84
08-01-2015 дата публикации

Ultrasound probe and ultrasound diagnostic imaging apparatus

Номер: US20150011881A1
Автор: Shuhei OKUDA
Принадлежит: KONICA MINOLTA INC

Disclosed is an ultrasound probe including a piezoelectric device which transmits and receives ultrasound, n layers of acoustic matching layers provided on a front side of the piezoelectric device, n layers meaning two layers or more, an acoustic lens which is provided on a front side of the acoustic matching layers and an acoustic reflecting layer which is provided on a back side of the piezoelectric device.

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Номер записи: 85
11-01-2018 дата публикации

Systems and Methods for Quality Control of a Periodic Structure

Номер: US20180011031A1
Автор: BENSAOULA Abdelhak, FORREST Rebecca Lynne, GANDHI Jateen S., Maznev Alexei, Nelson Keith A., SHIN Hyun Doug, STOKES Donna Washington
Принадлежит:

Quality control of a periodic structure is performed using the damping rate of acoustic waves generated in the periodic structure. In this technique, an excitation light beam illuminates the first layer in the periodic structure to excite an acoustic wave. Possible irregularities in the periodic structure can scatter the acoustic wave, thereby increasing the damping rate of the acoustic wave. A sequence of probe light beams illuminates the periodic structure to measure the acoustic wave as a function of time to generated a temporal signal representing the damping rate of the acoustic signal. The acquired damping rate is employed to evaluate the quality of the periodic structure. 1. A method of quality control of a periodic structure comprising a stack of layers , the method comprising:illuminating the periodic structure through a first layer in the stack of layers with at least one excitation light beam, the at least one excitation light beam exciting an acoustic wave in the periodic structure;illuminating the periodic structure with at least one probe light beam;detecting the at least one probe light beam, using a photodetector, after interaction with the periodic structure, the photodetector being configured to generate a signal representing a damping rate of the acoustic wave; andestimating non-uniformity of the periodic structure based at least in part on the damping rate of the acoustic wave in the periodic structure.2. The method of claim 1 , further comprising:generating the excitation light beam with a pulse duration substantially equal to or less than 1 ns.3. The method of claim 1 , wherein the at least one probe light beam comprises a sequence of probe light pulses claim 1 , each probe light pulse in the sequence of probe light pulses having a distinct time delay with respect to the at least one excitation light beam claim 1 , and wherein detecting the at least one probe light beam comprises detecting each probe light pulse as a function of the distinct ...

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Номер записи: 86
14-01-2016 дата публикации

Electroacoustic converter film

Номер: US20160014527A1
Автор: Akito FUKUNAGA, Tetsu Miyoshi, Yusuke Hatanaka
Принадлежит: Fujifilm Corp

Provided is an electroacoustic converter film including thin film electrodes provided on both surfaces of a polymeric composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material that exhibits viscoelasticity at normal temperature, and protective layers formed on the thin film electrodes. The electroacoustic converter film further includes electrode lead-out metal foils laminated on the thin film electrodes, and the electrode lead-out metal foils allows connection to wiring through soldering when electrodes are led out from the thin film electrodes.

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Номер записи: 87
15-01-2015 дата публикации

VISUAL AND/OR ACOUSTIC PRIVACY FEATURES

Номер: US20150016651A1
Автор: Domash Kenneth Niles
Принадлежит:

Disclosed are exemplary embodiments of visual and/or acoustic privacy features. For example, exemplary embodiments are disclosed that include visual and/or acoustic privacy features for furniture (e.g., office chair, desk, table, cubicle, etc.). The visual and/or acoustic privacy features are movable relative to the user and/or furniture between at least a first configuration and a second configuration. In the first configuration, the visual and/or acoustic privacy features may be configured such that they do not inhibit the user from interacting with others. In the second configuration, the visual and/or acoustic privacy features may be configured to provide the user with at least some visual and/or acoustic privacy and isolation from others. 1. An apparatus comprising first and second visual and/or acoustic privacy features each including:a support member;an element coupled to and/or supported by the support member;one or more speakers coupled to and/or supported by the element; ["a first configuration in which the element is spaced apart from a user's head; and", "a second configuration in which the element is adjacent and alongside the user's head and with the one or more speakers positioned to provide sound at ear level of the user;"], 'whereby the first and second visual and/or acoustic privacy features are reconfigurable into a plurality of different configurations, including at least the element is not electronic; and/or', 'the element comprises fabric or mesh; and/or', 'the element is clear, transparent, translucent, and/or configured to allow the user to be at least partially visible through the element., 'wherein2. The apparatus of claim 1 , wherein in the second configuration claim 1 , the element may provide at least some visual and acoustic privacy with the element positioned to block the user's peripheral sight and reduce peripheral visual distractions.3. The apparatus of claim 1 , wherein the apparatus is controllable by the user to provide sound ...

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Номер записи: 88
03-02-2022 дата публикации

FLOOR MAT FOR LAYING ON THE GROUND AND FLOOR USING THE SAME

Номер: US20220034101A1
Автор: WANG Guanghai
Принадлежит:

The disclosure belongs to the technical field of soundproof flooring, and discloses a floor mat and a floor. The floor mat includes a floor mat body made of foamed material. At least one surface of the floor mat body is provided with a number of soundproof units with the same area. Each of the soundproof unit has at least one soundproof structure. At least one of the numbers, shapes and distribution positions of the soundproof structures are different. The floor mat of the present disclosure can play a sound absorption effect; at the same time, a plurality of chaotic sounds are dispersed and mutually offset, which effectively isolates most of the sounds and has a good soundproof effect. 1. A floor mat , wherein comprising a floor mat body made of foamed material; at least one surface of the floor mat body being formed with a number of soundproof units with same areas; each of the soundproof units being provided with at least one soundproof structure , and the soundproof structures in adjacent soundproof units being different in at least one of numbers , shapes and distribution positions , wherein the soundproof structures are blind holes , at least one of diameters of the blind holes , depths of the blind holes , and cross-sectional shapes of the blind holes in the depth direction are different a bottom surface of each of the blind hole is provided with a scattering block that has a plurality of scattering surfaces and protrudes from the bottom surface of the blind hole.2. (canceled)3. (canceled)4. (canceled)5. The floor mat according to claim 1 , wherein the plurality of the scattering surfaces of the scattering block form block portions at their intersections claim 1 , and in all of the block portions of each scattering block claim 1 , one block portion that is the farthest from a center layer of the floor mat forms a support portion for interacting with the ground claim 1 , the support portions of two adjacent scattering blocks have a same distance to the center ...

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Номер записи: 89
21-01-2016 дата публикации

Sonar transducer array assembly and methods of manufacture thereof

Номер: US20160018514A1
Автор: Brandon M. Black, Brian T. Maguire, John A. Matson
Принадлежит: GARMIN SWITZERLAND GMBH

A sonar transducer array assembly comprises a first flexible circuit, a second flexible circuit, and a plurality of transducer elements. The first and second flexible circuits each include a first side, a second side, and a plurality of adhesive areas spaced apart and positioned in a line along one edge of the first side. The transducer elements each include a first surface attached to one of the adhesive areas of the first flexible circuit, an opposing second surface attached to one of the adhesive areas of the second flexible circuit, and a third surface positioned between the first and second surfaces. The transducer elements form a linear array with the third surface of each transducer element in alignment and configured to transmit and receive an acoustic pressure wave.

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Номер записи: 90
21-01-2016 дата публикации

MARINE SONAR DISPLAY DEVICE WITH OPERATING MODE DETERMINATION

Номер: US20160018516A1
Автор: Brown Kevin A., Coleman Aaron R.
Принадлежит:

A marine sonar display device comprises a display, a sonar element, a multi axis sensor, a memory element, and a processing element. The display presents sonar images. The sonar element generates a sonar beam. The multi axis sensor determines an orientation and a tilt of the sonar element and present a sensor signal indicating the orientation and the tilt. The processing element is in communication with the display, the sonar element, the multi axis sensor, and the memory element. The processing element further determines an operating mode of the marine sonar display device, wherein the operating mode varying according to the orientation and the tilt of the sonar element.

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Номер записи: 91
16-01-2020 дата публикации

SOUND MEASUREMENT SYSTEM FOR A MOTOR VEHICLE

Номер: US20200018730A1
Автор: Auguet Thierry, GRANDJEAN SYLVAIN, Linda Jean-Louis
Принадлежит:

A sound measurement system intended to be installed on a motor vehicle, the system comprising: a microphone, an element for supporting the microphone, mechanical means for protecting the microphone against various projections (water, dust, etc.) from the environment of the vehicle, and mechanical means for protecting the microphone from airborne noise originating from the routing of the sound wave between the source and the measurement (cavity noise) and from the environment of the measuring system (turbulence around the measuring device), the various mechanical protection means being separate or combined. A motor vehicle may be provided with such a system. 19.-. (canceled)10. A sound measurement system intended to be installed on a motor vehicle , the system comprising:a microphone;an element for supporting the microphone;mechanical means for protecting the microphone against projections from an environment of the vehicle; andmechanical means for protecting the microphone from airborne noise originating from routing of a sound wave between a source and the measurement system, and for protecting the microphone from the environment of the measurement system,wherein the mechanical means are separate or combined.11. The sound measurement system according to claim 10 , wherein the element for supporting the microphone comprises a polygonal seat circumscribed by a cone.12. The sound measurement system according to claim 10 , wherein the mechanical means comprise a protective cover comprising:a deflector installed between the microphone and the noise source; andcolumns parallel to the microphone installed on respective opposite sides thereof.13. The sound measurement system according to claim 10 , wherein the mechanical means comprise lateral lugs installed on the element.14. The sound measurement system according to further comprising mechanical means for protecting the microphone against noise transmitted by conduction in a solid and originating from the motor vehicle ...

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Номер записи: 92
28-01-2016 дата публикации

WEARABLE OBSTACLE-DETECTION DEVICE, AND CORRESPONDING METHOD AND COMPUTER PROGRAM PRODUCT

Номер: US20160025854A1
Автор: "DAngelo Francesco", Corona Stefano
Принадлежит:

A device for detecting obstacles that is wearable by a subject, for example integrated in an item of footwear. The device includes an ultrasound source for emitting an ultrasound transmission signal and an ultrasound receiver for receiving a corresponding ultrasound signal reflected by an obstacle, a control module for measuring a time of flight between emission of the ultrasound transmission signal and reception of the corresponding ultrasound signal reflected by the obstacle and calculating, on the basis of the aforesaid time of flight, the distance at which the obstacle is located. The device comprises an inertial sensor, in particular an acceleration sensor, designed to measure acceleration of the foot along three axes, and a control module configured for enabling operation of the ultrasound source if the aforesaid acceleration values measured by the inertial sensor respect a given condition for enabling measurement of the time of flight. 1. A device for detecting obstacles that is wearable by a subject , said device comprising:a ultrasound source configured to emit an ultrasound transmission signal;an ultrasound receiver configured to receive a corresponding ultrasound reflected signal reflected by an obstacle;a control module configured to measure a time of flight between emission of the ultrasound transmission signal by the ultrasound source and reception of the reflected ultrasound signal by the ultrasound receiver and calculate, based on said time of flight, a distance at which said obstacle is located;an acceleration sensor configured to measure acceleration values of the subject along three axes, respectively; anda control module configured to enable operation of the ultrasound source if said acceleration values measured by said acceleration sensor respect a given enabling condition for enabling measurement of the time of flight, wherein said enabling condition identities a position where a foot of the subject is resting on a resting surface during a walk ...

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Номер записи: 93
24-04-2014 дата публикации

METHOD AND AN ACTIVE DEVICE FOR TREATING NOISE ON BOARD A VEHICLE, AND A VEHICLE PROVIDED WITH SUCH A DEVICE

Номер: US20140112490A1
Автор: CAILLET Julien, Marrot Franck
Принадлежит: EUROCOPTER

A noise treatment device (D) comprising at least one local noise sound sensor () and at least one sound system having a support () and at least one sound actuator (). The device also includes a position sensor for determining the position of a person's head, at least one treatment unit () connected to the local noise sound sensor to receive a local noise signal and configured to deliver a control signal to each sound actuator (), the control signal being a function of said local noise signal and of at least one transfer function per ear, and active matching means () co-operating with said position sensor in order to keep each transfer function used in preparing each control signal representative of the path to be traveled by said anti-noise. 1. A device for treating noise in the proximity of the head of a passenger of a vehicle , said device having at least one local noise sound sensor , said device also having at least one sound system for generating an anti-noise , each sound system being provided with a support and at least one sound actuator carried by the support , wherein the device comprises:a position sensor for determining the position of said head;at least one treatment unit connected to the local noise sound sensor to receive a local noise signal, the treatment unit being configured to deliver a control signal to each sound actuator, which control signal is a function at least of said local noise signal and of at least one transfer function per ear and relating to transferring soundwaves between a sound actuator and said passenger; andactive matching means co-operating with said position sensor to keep each transfer function that is used in preparing each control signal representative of a path to be traveled by said anti-noise.2. A device according to claim 1 , wherein said active matching means comprise maintaining means configured to act on each sound system so as to keep each transfer function used by the treatment unit constant.3. A device according ...

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Номер записи: 94
29-01-2015 дата публикации

ROAD NOISE MASKING IN A VEHICLE

Номер: US20150030175A1
Автор: HEBERT COLIN M., Reilly Scott M., Roggenkamp Timothy J.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Road noise masking for a vehicle includes determining, by a computer processor, an expected interior sound associated with the vehicle. The expected interior sound is defined by a design of the vehicle in conjunction with road conditions encountered by the vehicle. The road noise masking also includes monitoring, via the computer processor, information sources of the vehicle during a driving event. Upon determining a current road surface from the monitoring, the road noise masking includes calculating a masking noise shape commensurate with the expected interior sound, and transmitting instructions including the masking noise shape to an audio system in the vehicle. The audio system produces masking noise from a tuner of the audio system that approximates the masking noise shape. 1. A method for implementing road noise masking for a vehicle , the method comprising:determining, via a computer processor in the vehicle, an expected interior sound associated with the vehicle, the expected interior sound defined by a design of the vehicle in conjunction with road conditions encountered by the vehicle;monitoring, via the computer processor, information sources of the vehicle during a driving event;upon determining a current road surface from the monitoring:calculating a masking noise shape commensurate with the expected interior sound; andtransmitting instructions including the masking noise shape to an audio system in the vehicle, the audio system producing masking noise from a tuner of the audio system that approximates the masking noise shape.2. The method of claim 1 , wherein parameters applied in the calculating of the masking noise shape include at least one of: bandpass frequency range claim 1 , bandpass filter roll off claim 1 , and amplitude of masking noise.3. The method of claim 1 , wherein the information sources include components managed by at least one control system of the vehicle.4. The method of claim 1 , wherein the information sources are characterized ...

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Номер записи: 95
02-02-2017 дата публикации

Forward Scanning Sonar System and Method with Angled Fan Beams

Номер: US20170031022A1
Автор: IVANOV Olexandr
Принадлежит:

A forward scanning sonar system including at least a sonar transducer and a support structure having the at least a sonar transducer mounted thereto, the at least a sonar transducer being configured such that, while during scanning operation the sonar transducer is moved along a forward moving direction, a fan-shaped beam of the sonar transducer is forming a plane oriented forwardly downwardly such that the fan-shaped beam forms a scan line oriented at a scan angle to the forward moving direction with the scan angle being greater than 0 and smaller than π/2 and such that the scan line intersects the forward direction at a point ahead of the sonar transducer. 1. A forward scanning sonar system comprising:a support structure; and,at least a sonar transducer mounted to the support structure, the at least a sonar transducer being configured such that, while during scanning operation the sonar transducer is moved along a forward moving direction, a fan-shaped beam of the sonar transducer is forming a plane oriented forwardly downwardly such that the fan-shaped beam forms a scan line oriented at a scan angle to the forward moving direction with the scan angle being greater than 0 and smaller than π/2 and such that the scan line intersects the forward direction at a point ahead of the transducer.2. The forward scanning sonar system according to wherein the at least a sonar transducer comprises a port sonar transducer and a starboard sonar transducer configured such that a port fan-shaped beam of the port sonar transducer intersects a starboard fan-shaped beam of the starboard sonar transducer in the forward direction.3. The forward scanning sonar system according to wherein the port sonar transducer and the starboard sonar transducer are configured such that an intersecting point of the scan line of the port fan-shaped beam and the scan line of the starboard fan-shaped beam is ahead of the sonar transducer in the forward direction.4. The forward scanning sonar system ...

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Номер записи: 96
02-02-2017 дата публикации

Forward Scanning Sonar System and Method with Angled Fan Beams

Номер: US20170031023A1
Автор: IVANOV Olexandr
Принадлежит:

A forward scanning sonar system including at least a sonar transducer and a support structure having the at least a sonar transducer mounted thereto, the at least a sonar transducer being configured such that, while during scanning operation the sonar transducer is moved along a forward moving direction, a fan-shaped beam of the sonar transducer is forming a plane oriented forwardly downwardly such that the fan-shaped beam forms a scan line oriented at a scan angle to the forward moving direction with the scan angle being greater than 0 and smaller than π/2 and such that the scan line intersects the forward direction at a point ahead of the sonar transducer. 1. A forward scanning sonar system comprising:a support structure; and,at least a sonar transducer mounted to the support structure, the at least a sonar transducer being configured such that, while during scanning operation the sonar transducer is moved along a forward moving direction, a fan-shaped beam of the sonar transducer is forming a plane oriented forwardly downwardly such that the fan-shaped beam forms a scan line oriented at a scan angle to the forward moving direction with the scan angle being greater than 0 and smaller than π/2 and such that the scan line intersects the forward direction at a point ahead of the transducer.2. The forward scanning sonar system according to wherein the at least a sonar transducer comprises a port sonar transducer and a starboard sonar transducer configured such that a port fan-shaped beam of the port sonar transducer intersects a starboard fan-shaped beam of the starboard sonar transducer in the forward direction.3. The forward scanning sonar system according to wherein the port sonar transducer and the starboard sonar transducer are configured such that an intersecting point of the scan line of the port fan-shaped beam and the scan line of the starboard fan-shaped beam is ahead of the sonar transducer in the forward direction.4. The forward scanning sonar system ...

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Номер записи: 97
01-05-2014 дата публикации

ACOUSTIC METAMATERIAL WITH SIMULTANEOUSLY NEGATIVE EFFECTIVE MASS DENSITY AND BULK MODULUS

Номер: US20140116802A1
Автор: MA Guancong, SHENG Ping, Yang Min, YANG Zhiyu
Принадлежит: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

A device with simultaneous negative effective mass density and bulk modulus has at least one tubular section and front and back membranes sealing the tubular section. The front and back membranes sealing the tubular sections seal the tubular section sufficiently to establish a sealed or restricted enclosed fluid space defined by the tubular section and the membranes, and restrict escape or intake of fluid resulting from acoustic vibrations. A pair of platelets are mounted to the membranes, with the individual platelets substantially centered on respective ones of the front and back membranes. 1. A device with simultaneous negative effective mass density and bulk modulus , comprising:at least one tubular section;front and back membranes sealing the tubular section sufficiently to establish a sealed or restricted enclosed fluid space defined by the tubular section and the membranes, the sealing or restriction restricting escape or intake of fluid resulting from acoustic vibrations; anda pair of platelets, each platelet mounted to and substantially centered on respective ones of the front and back membranes.2. The device with simultaneous negative effective mass density and bulk modulus of claim 1 , wherein the tubular section has a cylindrical shape claim 1 , with each of the front and back membranes substantially identical.3. The device with simultaneous negative effective mass density and bulk modulus of claim 1 , wherein the tubular section has a frustoconical shape.4. The device with simultaneous negative effective mass density and bulk modulus of claim 1 , wherein the tubular section has a non-cylindrical shape claim 1 , with each of the front and back membranes substantially identical.5. The device with simultaneous negative effective mass density and bulk modulus of claim 1 , wherein the tubular section has a non-cylindrical shape claim 1 , with each of the front and back membranes having different diameters.6. The device with simultaneous negative effective ...

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Номер записи: 98
05-02-2015 дата публикации

VOLUME AMPLIFYING ASSEMBLY AND PORTABLE ELECTRONIC DEVICE PACKING CASE USING THE VOLUME AMPLIFYING ASSEMBLY

Номер: US20150034411A1
Автор: HUANG CHIU-CHU, TSAI PING-CHU
Принадлежит: FIH (HONG KONG) LIMITED

A portable electronic device packing case includes a packing body and a volume amplifying assembly received in the packing body. The volume amplifying assembly includes a volume amplifying body. The volume amplifying body includes a top wall formed on one end of the volume amplifying body, a side wall connected to the top wall, and a supporting member for supporting a portable electronic device positioned in the volume amplifying body. The top wall defines a plurality of sound holes therein, and the supporting member has a bottom surface defining a plurality of sound transmitting holes. The top wall, the side wall, and the supporting member cooperatively define a sound chamber for sound emitted by the electronic device to resonate therein. 1. A volume amplifying assembly , comprising:a volume amplifying body, the volume amplifying body comprising:a top wall formed on one end of the volume amplifying body, the top wall defining a plurality of sound holes therein;a side wall connecting to the top wall; anda supporting member for supporting a portable electronic device positioned in the volume amplifying body, the supporting member comprising a bottom surface away from the top wall defining a plurality of sound transmitting holes;the top wall, the side wall, and the supporting member cooperatively defining a sound chamber, the sound emitted by the portable electronic device transmitting through the sound transmitting holes to the sound chamber, and then transmitting to the outside through the sound holes of the top wall.2. The volume amplifying assembly as claimed in claim 1 , wherein the volume amplifying body further comprises a bottom wall connecting to the side wall claim 1 , the top wall claim 1 , the bottom wall claim 1 , and the side wall cooperatively define a cavity claim 1 , the top wall claim 1 , the bottom wall claim 1 , the side wall claim 1 , and the supporting member cooperatively define the sound chamber.3. The volume amplifying assembly as claimed in ...

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Номер записи: 99
05-02-2015 дата публикации

Sound control apparatus

Номер: US20150034413A1
Автор: Shigeki Uetabira
Принадлежит: Interman Corp

A sound control apparatus capable of improving the quality of the reproduction sound output from an electronic apparatus includes a sound control mat, and a support unit for supporting an electronic device having a speaker on the sound control mat. The sound control mat has a sound controlling structure configured to control the resonance of sound output from the speaker of the electronic apparatus when it is supported by the sound control mat. With this sound control apparatus, it is possible to enjoy a good tone directly output from a television, a stereo system or any other device having a small speaker without needing a special devising.

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Номер записи: 100