Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 4023. Отображено 100.
20-11-2015 дата публикации

Гидроакустическое устройство

Номер: RU0000156897U1
Автор: Александр Васильевич Дикарев, Станислав Михайлович Дмитриев
Принадлежит: Общество с ограниченной ответственностью "Лаборатория подводной связи и навигации"

1. Гидроакустическое устройство, включающее расположенные в едином корпусе преобразователь колебаний жидкой среды и электрических сигналов, выполненный с возможностью приема и/или передачи гидроакустических сигналов, расположенный на плате, соединенной с коммутирующим кабелем для подачи питания и передачи электрических сигналов, отличающееся тем, что корпус гидроакустического устройства образован наружными поверхностями преобразователя и платы и покрытием всех этих поверхностей водонепроницаемым компаундом, обеспечивающим пропускание гидроакустических колебаний.2. Гидроакустическое устройство по п. 1, отличающееся тем, что в качестве водонепроницаемого компаунда выбран термопласт.3. Гидроакустическое устройство по п. 1, отличающееся тем, что в качестве водонепроницаемого компаунда выбрана термоактивная полимерная смола, отверждаемая в естественных условиях.4. Гидроакустическое устройство по п. 1, отличающееся тем, что в качестве водонепроницаемого компаунда выбран синтетический эластомер.5. Гидроакустическое устройство по п. 4, отличающееся тем, что в качестве синтетического эластомера выбран полиуретан. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК G01S 3/80 (11) (13) 156 897 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2015125364/28, 26.06.2015 (24) Дата начала отсчета срока действия патента: 26.06.2015 (72) Автор(ы): Дмитриев Станислав Михайлович (RU), Дикарев Александр Васильевич (RU) (45) Опубликовано: 20.11.2015 Бюл. № 32 1 5 6 8 9 7 R U (57) Формула полезной модели 1. Гидроакустическое устройство, включающее расположенные в едином корпусе преобразователь колебаний жидкой среды и электрических сигналов, выполненный с возможностью приема и/или передачи гидроакустических сигналов, расположенный на плате, соединенной с коммутирующим кабелем для подачи питания и передачи электрических сигналов, отличающееся тем, что корпус гидроакустического устройства образован наружными ...

Подробнее
Номер записи: 1
29-03-2012 дата публикации

Microphone Array System

Номер: US20120076316A1
Автор: Manli Zhu, QI Li
Принадлежит: LI Creative Technologies Inc

A method and system for enhancing a target sound signal from multiple sound signals is provided. An array of an arbitrary number of sound sensors positioned in an arbitrary configuration receives the sound signals from multiple disparate sources. The sound signals comprise the target sound signal from a target sound source, and ambient noise signals. A sound source localization unit, an adaptive beamforming unit, and a noise reduction unit are in operative communication with the array of sound sensors. The sound source localization unit estimates a spatial location of the target sound signal from the received sound signals. The adaptive beamforming unit performs adaptive beamforming by steering a directivity pattern of the array of sound sensors in a direction of the spatial location of the target sound signal, thereby enhancing the target sound signal and partially suppressing the ambient noise signals, which are further suppressed by the noise reduction unit.

Подробнее
Номер записи: 2
28-06-2012 дата публикации

Sound information display device, sound information display method, and program

Номер: US20120162259A1
Автор: Juri SAKAI
Принадлежит: Sony Corp

A sound information display device including: a plurality of sound collecting units; an information obtaining unit that obtains positional information and sound information of a sound source based on collected sound information of the plurality of sound collecting units; a display data generation unit that generates display data for displaying sound information that is obtained by the information obtaining unit overlaid on a visual image at a position that corresponds to positional information that is obtained by the information obtaining unit within the visual image; and a head-mounted image display unit that displays sound information of a sound source overlaid on the visual information at a position that corresponds to the sound source within the visual image based on display data that is generated by the display data generation unit.

Подробнее
Номер записи: 3
19-07-2012 дата публикации

Sound signal processing apparatus, sound signal processing method, and program

Номер: US20120183149A1
Автор: Atsuo Hiroe
Принадлежит: Sony Corp

An apparatus including a direction estimation unit detecting one or more direction points indicating a sound source direction of a sound signal for each of blocks divided in a predetermined time unit, and a direction tracking unit connecting the direction points to each other between the blocks and detecting a section in which a sound is active.

Подробнее
Номер записи: 4
06-09-2012 дата публикации

Improvements in Distributed Fibre Optic Sensing

Номер: US20120226452A1
Автор: David John Hill, Magnus Mcewen-King
Принадлежит: Optasense Holdings Ltd

Techniques for determining lateral offset of the source of an acoustic disturbance in a distributed acoustic fibre optic sensor are described. The sensor comprises an optical source ( 112 ) for interrogating an optical fibre ( 104 ) and a detector ( 116 ) and processor ( 108 ) arranged to detect any backscattered radiation and determine a measurement signal for a plurality of discrete longitudinal sensing portions of the optical fibre. The processor is also arranged to analyse the measurement signals to identify signals corresponding to the same acoustic wave arriving at different parts of the fibre and determine from the time of arrival of said acoustic wave the direction and/or distance of the origin of said acoustic wave from the optical fibre. The geometry of the fibre may be arranged to ensure that any positional ambiguity can be resolved and the use of multiple fibres ( 501, 502 ) is disclosed.

Подробнее
Номер записи: 5
22-11-2012 дата публикации

Acoustic Localization of a Speaker

Номер: US20120294118A1
Автор: Gerhard Uwe Schmidt, Markus Buck, Tim Haulick, Tobias Wolff
Принадлежит: Nuance Communications Inc

A system locates a speaker in a room containing a loudspeaker and a microphone array. The loudspeaker transmits a sound that is partly reflected by a speaker. The microphone array detects the reflected sound and converts the sound into a microphone array, the speaker's distance from the microphone array, or both, based on the characteristics of the microphone signals.

Подробнее
Номер записи: 6
06-12-2012 дата публикации

Systems and methods for disambiguating shooter locations with shockwave-only location

Номер: US20120307595A1
Автор: Daniel Ramsay Cruthirds, James Edwin Barger, Richard James Mullen, Ronald Bruce Coleman
Принадлежит: BBN Technologies Corp

The systems and methods described herein relate to an airborne shooter detection system having a plurality of sensors coupled to the body of an aircraft such as a helicopter. The sensors are arranged to receive shockwave-only signals. The received signals are analyzed to determine an unambiguous shooter location. The analysis may include measuring the arrival times of the shockwaves of projectiles at each of the sensors, determining the differences in the arrival times among sensors, computing a set of ambiguous solutions corresponding to a shooter, and clustering this set of solutions to determine the unambiguous shooter location. The systems and methods described herein may also be used to determine if multiple shooters are present, and subsequently determine the shooter locations for each of the multiple shooters.

Подробнее
Номер записи: 7
27-12-2012 дата публикации

Audio Processing for Video Conferencing

Номер: US20120327177A1
Автор: Tommy Kee, Wilfrid LeBlanc
Принадлежит: Broadcom Corp

Methods, systems, and computer program products for enhancing transmitted audio signals for a video conference call are disclosed. Facial recognition technology and audio processing techniques determine a position of a speaking member of a party on a video conference. Based on the determined position of the speaking member, the directionality of the received audio signals can be adjusted towards the speaking member. The video conference system can transmit the adjusted audio signals.

Подробнее
Номер записи: 8
17-01-2013 дата публикации

Sound source localization using phase spectrum

Номер: US20130016852A1
Автор: Harshavardhana Narayana Kikkeri, Kazuhito Koishida, Shankar Regunathan
Принадлежит: Microsoft Corp

An array of microphones placed on a mobile robot provides multiple channels of audio signals. A received set of audio signals is called an audio segment, which is divided into multiple frames. A phase analysis is performed on a frame of the signals from each pair of microphones. If both microphones are in an active state during the frame, a candidate angle is generated for each such pair of microphones. The result is a list of candidate angles for the frame. This list is processed to select a final candidate angle for the frame. The list of candidate angles is tracked over time to assist in the process of selecting the final candidate angle for an audio segment.

Подробнее
Номер записи: 9
04-04-2013 дата публикации

Method for analyzing sound transmission paths in a system

Номер: US20130083929A1
Автор: Akira Inoue, Yosuke Tanabe
Принадлежит: HITACHI LTD

A method for analyzing sound transmission paths in a system from a sound source to a receiver in which the all sound paths are first identified from the sound source to the receiver. These sound paths include both structure-borne sound paths and air-borne sound paths. The transfer function from each path to the receiver is measured in terms of particle velocity vector by using a particle velocity sensor or a set of sound pressures by using a microphone array. The load at each path is directly measured or indirectly estimated in the actual source operation. The load at each path is multiplied by the transfer function from the path to the receiver, which represents the contribution of the path to the response at the receiver.

Подробнее
Номер записи: 10
23-05-2013 дата публикации

Method for Global Acoustic Positioning of a Marine or Submarine Target

Номер: US20130128700A1
Автор: MORVAN Pierre-Yves, PENNEC Sebastien
Принадлежит: iXBlue Industries S.A.S

A method for the global acoustic positioning of the USBL or SBL type of a marine or submarine target is more accurate than the method used by known USBL or SBL systems, while applying a network of sensors having the same material dimensions as those of these known systems. The method makes use of the movements of the network of sensors to apply principles of the processings by synthetic antenna. The principle of the synthetic antenna transposed to the present problem consists in using the signals received by the hydrophones of a physical antenna placed on a moveable platform at K different moments in succession, and therefore at K locations in succession in order to provide an estimate of the position of the beacon by virtue of an antenna of virtually greater dimensions. 1. A method for the global acoustic positioning of a marine or submarine target with the aid of a global positioning antenna of the USBL or SBL type placed on a moveable floating platform comprising an emitting acoustic transducer and at least two acoustic sensors and an inertial navigation system with GPS system and/or a Doppler velocity log DVL , and a computer , comprising:when the platform moves, emitting one or more acoustic pulses by the transducer in order to interrogate the beacon,estimating the georeferenced position of the beacon for the acoustic pulses emitted in return, andafter having received several of these pulses, determining, based on the various pulses received, a single georeferenced position of the beacon.2. The method according to claim 1 , wherein the emitter and the acoustic sensors operate at a frequency of between 5 and 100 kHz approximately claim 1 , and wherein the period of recurrence of the pulses emitted by the emitting acoustic transducer is approximately 3 seconds.3. The method according to claim 1 , wherein claim 1 , on each acoustic cycle claim 1 , a time of arrival and/or phase of arrival information of the wave emitted by the beacon on the network of acoustic ...

Подробнее
Номер записи: 11
23-05-2013 дата публикации

AUDIO SOURCE LOCALIZATION

Номер: US20130128701A1
Автор: Derkx Rene Martinus Maria
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

An audio source localization apparatus receives signals from a microphrine array (), and a reference processor () generates at least three reference beams with different directional properties. An estimation processor () which generates simultaneous direction estimates for two sound sources, comprises a circuit () combining signals of the at least three reference beams with a beam shape parameter reflecting a shape of an audio beamform and a beam direction parameter reflecting a direction of an audio beamform for the combined signal. A cost processor () generates a cost measure indicative of an energy of the combined signal and a minimization processor () estimates values of the beam shape parameter and the beam direction parameter which correspond to a local minimum of the cost measure. A direction processor () then determines simultaneous direction estimates for two sound sources from the determined parameter values. Improved direction estimation for two simultaneous sound sources may be achieved. 1. An audio source localization apparatus comprising:{'b': 103', '101, 'a receiving circuit () for receiving signals from an at least two-dimensional microphone array () comprising at least three microphones;'}{'b': '105', 'a reference circuit () for generating at least three reference beams from the microphone signals, the three reference beams having different directional properties; and'}{'b': '107', 'an estimation circuit () for generating a simultaneous direction estimate for two sound sources, the estimation circuit comprising{'b': '401', 'a circuit () for generating a combined signal by combining signals of the at least three reference beams, the combination having a beam shape parameter reflecting a shape of an audio beamform for the combined signal and a beam direction parameter reflecting a direction of an audio beamform for the combined signal,'}{'b': '403', 'a circuit () for generating a cost measure indicative of an energy measure of the combined signal,'}{' ...

Подробнее
Номер записи: 12
20-06-2013 дата публикации

SYSTEMS AND METHODS FOR PREDICTING AN EXPECTED BLOCKAGE OF A SIGNAL PATH OF AN ULTRASOUND SIGNAL

Номер: US20130155816A1
Автор: Fitzgerald Joseph R., Li Ren, Nelson Hui-ya L.
Принадлежит: QUALCOMM INCORPORATED

A method includes detecting a signal at a first set of receivers of a plurality of receivers of a device. The plurality of receivers includes the first set of receivers and a second set of receivers. The first set of receivers corresponds to selected receivers and the second set of receivers corresponds to non-selected receivers. The method includes predicting, based on the signal, an expected blockage of a signal path between a source of the signal and a first selected receiver of the first set of receivers, and selecting a particular receiver of the second set of receivers as a newly selected receiver in response to predicting the expected blockage. 1. A method comprising:detecting a signal at a first set of receivers of a plurality of receivers of a device, the plurality of receivers including the first set of receivers and a second set of receivers, wherein the first set of receivers corresponds to selected receivers and wherein the second set of receivers corresponds to non-selected receivers;predicting, based on the signal, an expected blockage of a signal path between a source of the signal and a first selected receiver of the first set of receivers; andselecting a particular receiver of the second set of receivers as a newly selected receiver in response to predicting the expected blockage.2. The method of claim 1 , wherein the source comprises an ultrasound transmitter.3. The method of claim 1 , further comprising:predicting a travel path of the source of the signal in response to predicting the expected blockage of the signal path; anddetermining the particular receiver of the second set of receivers based on the predicted travel path of the source of the signal.4. The method of claim 3 , wherein the particular receiver is selected from a look-up table based on information related to other receivers of the first set of receivers claim 3 , based on information regarding the predicted travel path claim 3 , based on information regarding a location of the ...

Подробнее
Номер записи: 13
04-07-2013 дата публикации

APPARATUS AND METHOD FOR RESOLVING AN AMBIGUITY FROM A DIRECTION OF ARRIVAL ESTIMATE

Номер: US20130170319A1
Автор: DEL GALDO Giovanni, KALLINGER Markus, KÜCH Fabian, KUNTZ Achim, MAHNE Dirk, SCHULTZ-AMLING Richard, THIERGART Oliver
Принадлежит: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

An apparatus for resolving an ambiguity from a DOA estimate includes a DOA estimate analyzer for analyzing the DOA estimate to obtain a plurality of ambiguous analysis parameters by using a bias information, the bias information representing a relation between a biased and an unbiased DOA estimate, and an ambiguity resolver for resolving the ambiguity in the plurality of ambiguous analysis parameters to obtain a non-ambiguous resolved parameter. 1. An apparatus for resolving an ambiguity from a DOA estimate , the apparatus comprising:a DOA estimate analyzer for analyzing the DOA estimate to acquire a plurality of ambiguous analysis parameters by using a bias information, the bias information representing a relation between a biased and an unbiased DOA estimate; andan ambiguity resolver for resolving the ambiguity in the plurality of ambiguous analysis parameters to acquire a non-ambiguous resolved parameter.2. The apparatus according to claim 1 , wherein the DOA estimate analyzer is configured to relate the DOA estimate to a plurality of ambiguous DOA estimates based on a bias function claim 1 , wherein the bias function is indicated by the bias information claim 1 , and wherein the plurality of ambiguous DOA estimates corresponds to the plurality of ambiguous analysis parameters claim 1 , wherein the ambiguity resolver is configured to determine the non-ambiguous resolved parameter from the plurality of ambiguous DOA estimates by using a priori spatial information of one or more active sources.3. The apparatus according to claim 1 , wherein the ambiguity resolver is configured as a selector for selecting the non-ambiguous resolved parameter from a plurality of ambiguous DOA estimates claim 1 , wherein the selector is configured to perform the selection of the non-ambiguous resolved parameter based on a measure of a distance between a localization estimate corresponding to an ambiguous DOA estimate of the plurality of ambiguous DOA estimates and a priori ...

Подробнее
Номер записи: 14
08-08-2013 дата публикации

kF.

Номер: US20130201797A1
Автор: Haas Alfred M.
Принадлежит:

The invention disclosed herein relates to methods and means for locating entities, places and/or things. Various embodiments of the methods and means of the invention may be performed by and/or implemented in hardware, in software, by one or more entities, and/or by some combination of hardware, software and/or one or more entities. 1. A means comprising hardware for locating entities , places and/or things.2. The means of wherein the hardware comprises one or more of a cell phone claim 1 , a tablet computer claim 1 , a worn device comprising a microprocessor claim 1 , and a personal digital assistant.3. A method for locating entities claim 1 , places and/or things.4. The method of wherein one or more steps of the method involves the use of hardware comprising one or more of a cell phone claim 3 , a tablet computer claim 3 , a worn device comprising a microprocessor claim 3 , and a personal digital assistant. Pursuant to 35 USC §119(e) and as set forth in the Application Data Sheet, this utility application claims the benefit of priority from U.S. Provisional Patent Application No. 61/586,838 (“the '838 provisional”) which is incorporated herein in its entirety by reference.Not Applicable.Not Applicable.This invention claims priority from the '838 provisional and expressly incorporates by reference the disclosures contained therein in their entirety, including but not limited to all patents, patent applications, and publications which are incorporated by reference in the '838 provisional and which are incorporated by reference herein in their entirety.In the context of the instant disclosure, the term “software” is taken in the broadest sense of its ordinary meaning and illustrative examples may comprise, but are not limited to, one or more of the following: realized embodiments of algorithms in any form, code written in whole or in part in any programming, scripting or other language (including, but not limited to, popular languages such as C++, Java, Visual Basic, ...

Подробнее
Номер записи: 15
17-10-2013 дата публикации

Integrated audio-visual acoustic detection

Номер: US20130272095A1
Автор: Adrian S. Brown, Duncan Paul Williams, Samantha Dugelay, Shannon Goffin
Принадлежит: UK Secretary of State for Defence

The present invention relates to a method and associated apparatus for the detection and identification of a sound event comprising collecting audio data from an acoustic sensor; processing the collected audio data to determine periodicity of the sound, processing the collected audio data to isolate transient and/or non-linear sounds and processing the collected audio data to identify frequency modulated pulses, in parallel to produce three output data sets; and combining and comparing the output data sets to categorise the sound event as being mechanical, biological or environmental. The method is particularly useful for detecting and analysing sound events in real time or near real-time and, in particular, for sonar applications as well as ground (including seismic) monitoring or for monitoring sound events in air (e.g. noise pollution).

Подробнее
Номер записи: 16
17-10-2013 дата публикации

SYSTEMS, METHODS, AND APPARATUS FOR ESTIMATING DIRECTION OF ARRIVAL

Номер: US20130272097A1
Автор: Kim Lae-Hoon, Visser Erik
Принадлежит: QUALCOMM INCORPORATED

Systems, methods, and apparatus for matching pair-wise differences (e.g., phase delay measurements) to an inventory of source direction candidates, and application of pair-wise source direction estimates, are described. 1. A method of processing a multichannel signal , said method comprising:for a first pair of channels of the multichannel signal, calculating a first plurality of directional fitness measures, wherein each among the first plurality of directional fitness measures is based on a corresponding different one among a plurality of candidate directions;for a second pair of channels of the multichannel signal that is different than the first pair, calculating a second plurality of directional fitness measures, wherein each among the second plurality of directional fitness measures is based on a corresponding different one among the plurality of candidate directions; andbased on the first plurality of directional fitness measures and the second plurality of directional fitness measures, selecting a first direction from among the plurality of candidate directions,wherein each of the first plurality of directional fitness measures is based on a difference, at a first frequency component of the multichannel signal, between the channels of the first pair, andwherein each of the second plurality of directional fitness measures is based on a difference, at the first frequency component, between the channels of the second pair.2. The method according to claim 1 , wherein said selecting the first direction from among the plurality of candidate directions comprises determining a minimum directional error among the first plurality of directional fitness measures and the second plurality of directional fitness measures.3. The method according to claim 1 , wherein claim 1 , for each of the first plurality of directional fitness measures claim 1 , said difference between the channels of the first pair is a difference between a phase of the first frequency component in one ...

Подробнее
Номер записи: 17
24-10-2013 дата публикации

Tracking system for a pipeline

Номер: US20130279296A1
Автор: Bao-Wen Yang, Eric Yang, Marion Recane, Stephanie H. Yang
Принадлежит: Acoustic Systems Inc

A tracking system for use with a pipeline includes a scraper having signal generation capability for generating acoustic signals, a plurality of acoustic pressure sensors positioned at intervals along the path traveled by the scraper, and a plurality of local processors positioned at intervals along the path traveled by the scraper. Each of the local processors is in communication with a respective acoustic pressure sensor. A central processor is in communication with the local processors and determines the location of the scraper using time-stamped acoustic signals received by the pressure sensors and a speed of sound in a fluid within the pipeline.

Подробнее
Номер записи: 18
24-10-2013 дата публикации

Orientation of an ultrasonic signal

Номер: US20130279297A1
Автор: Richard J. Lavery, Russell E. Calvarese, Thomas E. Wulff
Принадлежит: Symbol Technologies LLC

A system and method for orientation of an ultrasonic signal includes at least two emitters in a mobile device that includes an orientation sensor that can determine a device orientation. A receiver at a fixed, known point includes at least two microphones operable to receive an ultrasonic signal from the device. The mobile device can drive the emitters to produce an ultrasonic signal that is oriented towards the receiver. A location engine can establish a location of the mobile device using the time delay of arrival of an ultrasonic burst from the mobile device impinging on each microphone of the receiver. In response to the location and/or the orientation, the mobile device operable to drive the emitters to produce a signal that is oriented towards the receiver.

Подробнее
Номер записи: 19
31-10-2013 дата публикации

METHOD AND APPARATUS FOR INCREASING THE DIRECTION-FINDING ACCURACY OF A RECEIVER ARRANGEMENT

Номер: US20130286785A1
Автор: Beckefeld Frank, Renken Klaus
Принадлежит: Atlas Elektronik GmbH

A method for increasing a bearing accuracy of a receiver assembly includes providing a receiver assembly which receives sound waves to determine reception signals. The reception signals determine direction signals of a reception direction. Frequency lines of a frequency of a frequency range comprising an amplitude value are attributed to a reception direction based the direction signals. A directional function is formed for each frequency. Each directional function is transformed into a spectral range to obtain a first spectral function comprising first spectral function arguments. The first spectral function are filled with other spectral function arguments between middle spectral function arguments of the first spectral function arguments to obtain filled first spectral arguments. The other spectral function arguments have a respective value of zero or a range of zero. Each of the filled first spectral functions are transformed back from the spectral range to an interpolated first directional function. 115-. (canceled)16. A method for increasing a bearing accuracy of a receiver assembly , the method comprising:providing a receiver assembly configured to receive sound waves;using the receiver assembly and the sound waves received to determine reception signals;using the reception signals to determine direction signals of a reception direction;attributing frequency lines of a frequency of a frequency range comprising an amplitude value to a same reception direction based on each of the direction signals; a first function argument of the directional function corresponds to the reception direction,', 'adjacent first function arguments correspond to adjacent reception directions, and', 'the first function argument comprises, as a function value, the amplitude value or a value of a frequency line of a frequency of the directional function of the reception direction corresponding to the first function argument derived from the amplitude value;, 'forming a directional ...

Подробнее
Номер записи: 20
12-12-2013 дата публикации

Approaching vehicle detection device and approaching vehicle detection method

Номер: US20130328701A1
Автор: Jun Sato, Ryuji Funayama
Принадлежит: Toyota Motor Corp

There is provided an approaching vehicle detection device that detects an approaching vehicle on the basis of sounds collected by a plurality of sound collectors 13 A, 14 A, 15 A, and 16 A, in which a sound source (in particular, traveling sound of the vehicle) is detected using pairs of the sound collectors 11 A ( 13 A, 14 A) and 12 A ( 15 A, 16 A) with narrow spacings, and approach of the sound source is detected using a pair of the sound collectors 13 A and 16 A which are disposed to be more widely spaced than the pairs of the sound collectors 11 A and 12 A.

Подробнее
Номер записи: 21
20-02-2014 дата публикации

ESTIMATION DEVICE AND ESTIMATION METHOD

Номер: US20140050053A1
Автор: SASAKI KAZUO, Sumioka Motoshi
Принадлежит: FUJITSU LIMITED

A computer-readable recording medium storing an estimation program for causing a computer to execute a process, the process includes: executing sound image localization processing for each of pieces of sound data output by a plurality of sound sources; and specifying, on the basis of a change in orientation of a listener caused in accordance with the sound image localization processing, at least one of the plurality of sound sources related to the listener. 1. A computer-readable recording medium storing an estimation program for causing a computer to execute a process , the process comprising:executing sound image localization processing for each of pieces of sound data output by a plurality of sound sources; andspecifying, on the basis of a change in orientation of a listener caused in accordance with the sound image localization processing, at least one of the plurality of sound sources related to the listener.2. The computer-readable recording medium according to claim 1 , the process further comprising:obtaining, after executing the sound image localization processing, first direction information indicating a first orientation of the listener,wherein the specifying specifies a sound source existing in a direction indicated by the first direction information among the plurality of sound sources.3. The computer-readable recording medium according to claim 2 , the process further comprising:obtaining, prior to the executing sound image localization processing, position information indicating the position of the listener; andspecifying, on the basis of the position information, a second orientation from the listener for each of the plurality of sound sources,wherein the executing of the sound image localization processing generates first sound image localization sound data including a sound that seems to be output from a third orientation that is different from the second orientation, for at least one of the pieces of sound data.4. The computer-readable recording ...

Подробнее
Номер записи: 22
20-03-2014 дата публикации

SOUND DIRECTION ESTIMATION DEVICE, SOUND DIRECTION ESTIMATION METHOD, AND SOUND DIRECTION ESTIMATION PROGRAM

Номер: US20140078867A1
Автор: NAKADAI Kazuhiro, Nakamura Keisuke
Принадлежит: HONDA MOTOR CO., LTD.

A sound direction estimation device includes a transfer function storage unit configured to store transfer functions of sound sources in correlation with directions of the sound sources, a calculation unit configured to calculate the number of classes to be searched and a search interval for each class based on a desired search range and a desired spatial resolution for searching for the directions of the sound sources, and a sound source localization unit configured to search the search range for every search interval using the transfer function, to estimate the direction of the sound source based on the search result, to update the search range and the search interval based on the estimated direction of the sound source until the number of classes calculated by the calculation unit is reached, and to estimate the direction of the sound source. 1. A sound direction estimation device comprising:a transfer function storage unit configured to store transfer functions of sound sources in correlation with directions of the sound sources;a calculation unit configured to calculate the number of classes to be searched and a search interval for each class based on a desired search range and a desired spatial resolution for searching for the directions of the sound sources; anda sound source localization unit configured to search the search range for every search interval using the transfer function, to estimate the direction of the sound source based on the search result, to update the search range and the search interval based on the estimated direction of the sound source until the number of classes calculated by the calculation unit is reached, and to estimate the direction of the sound source.2. The sound direction estimation device according to claim 1 , wherein the sound source localization unit is configuredto search an n-th class (where n is an integer greater than or equal to 1) in the predetermined search range with the calculated search interval and update at ...

Подробнее
Номер записи: 23
03-04-2014 дата публикации

Sound processing device and method thereof, program, and recording medium

Номер: US20140093108A1
Автор: Tadatoshi Watanabe
Принадлежит: Sony Corp

A sound processing device includes a shift detection unit that detects a shift of a listening point on which a user listens to a sound in a sound field space from a standard reference listening point, and a correction unit that corrects a sound signal based on first sound field correction data for correcting a sound field when the listening point is the standard reference listening point and second sound field correction data for correcting a sound field of the listening point when the listening point is shifted from the standard reference listening point.

Подробнее
Номер записи: 24
07-01-2021 дата публикации

WIDEBAND ACOUSTIC POSITIONING WITH PRECISION CALIBRATION AND JOINT PARAMETER ESTIMATION

Номер: US20210003656A1
Автор: Kumar Amit, McNames James
Принадлежит:

A system includes at least one processor and at least one memory storing program instructions that, when executed by the at least one processor, cause the system to send an acoustic ranging transmitter signal between a plurality of calibration reference positions and at least one anchor point, receive an acoustic ranging receiver signal associated with the acoustic ranging transmitter signal and with distances between the plurality of calibration reference positions and the at least one anchor point, and estimate a speed of sound based on the acoustic ranging receiver signal. 1. A system , comprising:at least one processor; and send an acoustic ranging transmitter signal between a plurality of calibration reference positions and at least one anchor point,', 'receive an acoustic ranging receiver signal associated with the acoustic ranging transmitter signal and with distances between the plurality of calibration reference positions and the at least one anchor point, and', 'estimate a speed of sound based on the acoustic ranging receiver signal., 'at least one memory storing program instructions that, when executed by the at least one processor, cause the system to2. The system of claim 1 , wherein the estimating includes jointly estimating the positions of the at least one anchor point with the speed of sound and a signal acquisition delay associated with a time difference between the sending of the acoustic ranging transmitter signal and the receiving of the acoustic ranging receiver signal.3. The system of claim 1 , wherein the sending the acoustic ranging transmitter between the plurality of calibration reference positions and the at least one anchor point is from the plurality of calibration reference positions to the at least one anchor point.4. The system of claim 1 , wherein the sending the acoustic ranging transmitter between the plurality of calibration reference positions and the at least one anchor point is from the at least one anchor point to the ...

Подробнее
Номер записи: 25
03-01-2019 дата публикации

SEMICONDUCTOR DEVICE, ULTRASONIC SENSOR, AND MOVING BODY

Номер: US20190004143A1
Автор: Mishima Kazuma
Принадлежит: ROHM CO., LTD.

A semiconductor device includes a burst signal generation unit arranged to generate a burst signal so as to supply the burst signal to a transmission unit that drives a piezoelectric element, a signal processing unit arranged to process a received signal received by the piezoelectric element or another piezoelectric element, and a resetting unit arranged to forcibly reset a filter in the signal processing unit. 1. A semiconductor device comprising:a burst signal generation unit arranged to generate a burst signal so as to supply the burst signal to a transmission unit that drives a piezoelectric element;a signal processing unit arranged to process a received signal received by the piezoelectric element or another piezoelectric element; anda resetting unit arranged to forcibly reset a filter in the signal processing unit.2. The semiconductor device according to claim 1 , wherein detection of an object based on the received signal is started just after the resetting unit forcibly resets the filter.3. The semiconductor device according to claim 1 , wherein the resetting unit forcibly resets the filter after a predetermined time elapses from generation start timing of a burst wave contained in the burst signal.4. The semiconductor device according to claim 3 , wherein the resetting unit changes the predetermined time according to an output signal of a temperature sensor disposed inside the semiconductor device or in vicinity of the semiconductor device.5. The semiconductor device according to claim 4 , comprising the temperature sensor.6. The semiconductor device according to claim 1 , whereinthe signal processing unit generates a signal to be compared with a threshold value used for detecting an object based on the received signal, by processing the received signal, andthe resetting unit forcibly resets the filter when the signal to be compared with the threshold value used for detecting an object based on the received signal is decreased to a predetermined value.7. ...

Подробнее
Номер записи: 26
04-01-2018 дата публикации

WIRELESS TRANSMITTING/RECEIVING SYSTEM, WIRELESS RECEIVING DEVICE AND WIRELESS TRANSMITTING/RECEIVING METHOD

Номер: US20180005404A1
Автор: LIU Cheng-Chieh
Принадлежит:

A wireless transmitting/receiving system includes a transmitter, a first directional receiver, a camera, a storage device and a processor. The transmitter is disposed on a target object and transmits a wireless signal. The first directional receiver is disposed with respect to an entry/exit boundary. The first directional receiver receives the wireless signal and generates a first received signal strength indication. The camera captures an image of the entry/exit boundary. The storage device stores a mapping table of target object location and received signal strength. The processor is electrically connected to the storage device and determines a location of the target object and a moving direction of the target object with respect to the entry/exit boundary according to the image and the mapping table of target object location and received signal strength. 1. A wireless transmitting/receiving system comprising:a transmitter disposed on a target object, the transmitter transmitting a wireless signal;a first directional receiver disposed with respect to an entry/exit boundary, the first directional receiver receiving the wireless signal and generating a first received signal strength indication;a camera capturing an image of the entry/exit boundary;a storage device storing a mapping table of target object location and received signal strength; anda processor electrically connected to the storage device, the processor determining a location of the target object and a moving direction of the target object with respect to the entry/exit boundary according to the image and the mapping table of target object location and received signal strength.2. The wireless transmitting/receiving system of claim 1 , wherein a first receiving range of the first directional receiver is oriented towards a first side of the entry/exit boundary; the processor determines that the target object moves from the first side of the entry/exit boundary towards a second side of the entry/exit ...

Подробнее
Номер записи: 27
02-01-2020 дата публикации

ROBOT AND OPERATING METHOD THEREOF

Номер: US20200005810A1
Автор: PARK Ji Hwan
Принадлежит: LG ELECTRONICS INC.

A robot which executes a mounted artificial intelligence (AI) algorithm and/or machine learning algorithm and is capable of communicating with other electronic devices and external servers in a 5G communication environment and an operating method thereof. The robot includes a distance sensing sensor, an input unit which includes a plurality of microphones and is for inputting an audio signal, an output unit which includes a display, and a processor which obtains a sound of a base sound source disposed within a sensible range of the distance sensing sensor through a plurality of microphones to process the sound. The processor measures the distance between the robot and the base sound source using the distance sensing sensor, calculates reference CDR information corresponding to the measured distance information, and estimates CDR information of a sound corresponding to the distance from the robot based on the calculated reference CDR information. 1. An operating method of a robot , the operating method comprising:receiving a sound generated from a base sound source located in a sensible range of the robot through a plurality of microphones;calculating reference coherent to diffuse power ratio (CDR) information corresponding to distance information regarding a distance measured between the base sound source and the robot; andestimating CDR information of a sound corresponding to the distance from the robot, based on the calculated reference CDR information.2. The operating method of a robot according to claim 1 , further comprising:receiving a sound generated from a predetermined sound source which is out of a photographic range of the robot through the plurality of microphones;calculating CDR information of an input sound;estimating a position of the predetermined sound source based on the calculated CDR information and the estimated CDR information; andperforming a specific interaction operation when the estimated position of the predetermined sound source is within ...

Подробнее
Номер записи: 28
27-01-2022 дата публикации

System for localization of sound sources

Номер: US20220026518A1
Автор: Danish SHAIKH, Jakob Christensen-Dalsgaard, John Hallam, Mads HELLE
Принадлежит: Bss Aps

A sound or vibration source localization system with a master unit and a plurality of slave units. The master unit transmit a time synchronization signal via an RF link to the slave units. A microphone or vibration sensor in each of the slave units are used to record a short time sequence, e.g. 0.2-2 seconds, of sound or vibration time aligned with the time synchronization signal to ensure synchronous recording of the time sequences at all slave units. The slave unit transmit the recorded time aligned time sequences via an RF link along with a time stamp and an identification code to the master unit. The master unit has a processor system arranged to process the received time sequences from the slave units according to a lizard ear mimicking algorithm. Such type of algorithm provides a good direction estimate in response to two input signals recorded at different positions, even with a short time sequence. As a result, and preferably along with information regarding physical positions of the slave units, a sound source or vibration source localization estimate can be generated.

Подробнее
Номер записи: 29
10-01-2019 дата публикации

MEASURING APPARATUS AND METHOD

Номер: US20190011551A1
Автор: Sonoura Takafumi, Yamamoto Daisuke
Принадлежит: KABUSHIKI KAISHA TOSIHBA

According to one embodiment, a measuring apparatus includes an ultrasonic transmitter, an ultrasonic receiver and an estimator. An ultrasonic transmitter transmits, as a transmission signal, an ultrasonic beam in a plurality of directions. An ultrasonic receiver receives, as received signals, reflected waves of the transmission signal from the plurality of directions, one received signal including a plurality of reflected waves when the transmission signal is transmitted to one direction of the plurality of directions. An estimator that estimates range information from the received signals, based on preliminarily obtained received signals and a preliminarily obtained distance to 1. A measuring apparatus comprising:an ultrasonic transmitter that transmits, as a transmission signal, an ultrasonic beam in a plurality of directions;an ultrasonic receiver that receives, as received signals, reflected waves of the transmission signal from the plurality of directions, one received signal including a plurality of reflected waves when the transmission signal is transmitted to one direction of the plurality of directions; andan estimator that estimates range information from the received signals, based on preliminarily obtained received signals and a preliminarily obtained distance to an object.2. The apparatus according to claim 1 , wherein the received signals each represents a waveform including a plurality of local maximum values.3. The apparatus according to claim 1 , wherein the ultrasonic transmitter transmits the transmission signal while performing a scanning operation in the plurality of directions so that adjacent portions of the ultrasonic beam overlap.4. The apparatus according to claim 1 , further comprising:an analyzer that performs machine learning using the received signals and multi-dimensional range information related to a distance from the apparatus to an object, and generates a learning result including an estimation formula, the multi-dimensional range ...

Подробнее
Номер записи: 30
03-02-2022 дата публикации

TIME-VARYING TEMPLATE FOR IMPROVED SHORT-DISTANCE PERFORMANCE IN CODED ULTRASONIC RANGING

Номер: US20220035031A1
Автор: Ding Lei, GOPALAN Anand, RAMASWAMY SRINATH MATHUR
Принадлежит:

Ultrasonic ranging systems and methods that emit coded bursts and correlate transduced acoustical echoes of the bursts with a receive template characterizing a burst code to determine time-of-flight information use receive templates of time-variable length to improve short-range object detection. The template length is based on a time index measured from the start of the burst emission. The detection can account for a dead zone of transducer ringing following a burst. A time-variable gain that is also based on the time index can be applied to the correlated signal. The length and gain can be adjusted with reduced temporal frequency to reduce computation cost. 1. An ultrasonic ranging system comprising:time-varying template generation circuitry configured to generate a time-varying coded receive template based on a full-length template and a time index from a start of a burst signal provided to an ultrasonic transducer, the length of the time-varying coded receive template depending on the time index; andcorrelator circuitry coupled to the time-varying template generation circuitry and configured to correlate a received transduced reflected signal with the time-varying coded receive template to produce a correlated signal, an envelope of the correlated signal containing a peak indicative of a distance between the ultrasonic transducer and a detected object.2. The system of claim 1 , further comprising a time-varying gain multiplier coupled to the correlator circuitry and configured to adjust a gain of the correlated signal in an amount that is based on the time index from the start of the burst signal.3. The system of claim 1 , the time-varying template generation circuitry being configured to generate the time-varying coded receive template further based on a programmable dead zone duration parameter indicative of a period of transducer ringing that follows the end of the burst signal.4. The system of claim 1 , the time-varying template generation circuitry being ...

Подробнее
Номер записи: 31
15-01-2015 дата публикации

Acoustic monitoring of block caving

Номер: US20150019133A1
Автор: Michael A. Davis
Принадлежит: CIDRA CORPORATE SERVICES INC.

Apparatus is provided featuring a signal processing module configured to receive signaling containing information about detected acoustic emissions related to ore being mined from a block cave in a block caving process, including falling ore that creates unique acoustic signatures; and determine information about the ore being mined from the block cave in the block caving process, based at least partly on the signaling received. The signal processing module may receive the signaling from an array of acoustic sensors placed around the block cave, including where the array of acoustic sensors surrounds the block cave in both vertical and horizontal directions. The signal processing module may provide corresponding signaling containing corresponding information about the ore being mined from the block cave in the block caving process, including where the corresponding information includes information about a distribution and size of the ore being mined from the block cave in the block caving process.

Подробнее
Номер записи: 32
22-01-2015 дата публикации

Ultrasonic Positioning System and Method Using the Same

Номер: US20150023138A1
Автор: Liu Guangsong, Yuan Shiming
Принадлежит: Suzhou Touchair Technology Co., Ltd

Described herein are an ultrasonic positioning system integrated in an electronic device, and a method using the same. The ultrasonic positioning system comprises an ultrasound generator, two or more ultrasound receivers, and a control unit. Said ultrasound generator is configured to generate an ultrasound wave. Said two or more ultrasound receivers are configured to receive a reflected ultrasound wave produced by reflection of the ultrasound wave by an object in a field. Said control unit is configured to determine a position and/or a speed of the object using a frequency shift or a delay or both of the reflected ultrasound wave relative to the ultrasound wave. The ultrasonic positioning system provides gesture recognition and non-contact control of the device based on the ultrasonic positioning function of the device. 1. A device comprising:a sound generator configured to generate ultrasonic sound and audible sound;at least two sound receivers configured to detect ultrasonic sound and audible sound.2. The device of claim 1 , further comprising a processor.3. The device of claim 2 , wherein the processor is configured claim 2 , to measure frequencies of the ultrasonic sound detected by the at least two sound receivers claim 2 , to measure a delay between the ultrasonic sound detected by the at least two sound receivers claim 2 , to drive the sound generator with an electric signal claim 2 , or to do a combination thereof.4. The device of claim 1 , wherein the ultrasonic sound generated by the sound generator comprises one or more pulses claim 1 , at least two different frequencies claim 1 , or both.5. The device of claim 1 , wherein the ultrasonic sound detected by the at least two sound receivers comprises at least a reflected portion claim 1 , a refracted portion claim 1 , a diffracted portion or their combination claim 1 , of the ultrasonic sound generated by the sound generator.6. The device of claim 1 , wherein the sound generator comprises one or more electro ...

Подробнее
Номер записи: 33
28-01-2016 дата публикации

DISTANCE MEASUREMENT

Номер: US20160025836A1
Автор: Derom Koen
Принадлежит:

A method for determining a distance between a device and an object, the method comprising: emitting an acoustic reference signal from a speaker of the device; receiving an acoustic input signal at a microphone of the device, the acoustic input signal including a measurement portion including a reflection of the acoustic reference signal off the object; cross correlating at least the measurement portion with the emitted acoustic reference signal to provide a cross correlated signal; receiving information relating to the object; extracting a section of the cross correlated signal corresponding to reflection of the acoustic reference signal by the object, based on the received information; analysing the extracted section of the cross correlated signal to determine a time of flight between emitting the acoustic reference signal and receiving the reflection; and determining the distance between the device and the object based on the determined time of flight and known characteristics of the acoustic reference signal. A chipset for performing the method is also disclosed. 1. A method of determining a distance between a device and an object , the method comprising:emitting an acoustic reference signal from a speaker of the device;receiving an acoustic input signal at a microphone of the device, the acoustic input signal including a measurement portion including a reflection of the acoustic reference signal off the object;cross correlating at least the measurement portion with the emitted acoustic reference signal to provide a cross correlated signal;receiving information relating to the object;extracting a section of the signal corresponding to reflection of the acoustic reference signal by the object, based on the received information;analysing the extracted section of the cross correlated signal to determine a time of flight between emitting the acoustic reference signal and receiving the reflection; anddetermining the distance between the device and the object based on ...

Подробнее
Номер записи: 34
24-01-2019 дата публикации

Sound source localization confidence estimation using machine learning

Номер: US20190025400A1
Автор: Kevin Juho Venalainen
Принадлежит: Microsoft Technology Licensing LLC

Techniques are described herein that are capable of performing sound source localization (SSL) confidence estimation using machine learning. An SSL operation is performed with regard to a sound to determine an SSL direction estimate and an SSL-based confidence associated with the SSL direction estimate based at least in part on a multi-channel representation of the sound. The SSL direction estimate indicates an estimated direction from which the sound is received. The SSL-based confidence indicates an estimated probability that the sound is received from the estimated direction. The multi-channel representation includes representations of the sound that are detected by respective sensors (e.g., microphones). Additional characteristic(s) of the sound are automatically determined. A machine learning (ML) operation is performed based at least in part on the SSL direction estimate, the SSL-based confidence, and the additional characteristic(s) to determine an ML-based confidence associated with the SSL direction estimate.

Подробнее
Номер записи: 35
26-01-2017 дата публикации

Modular intelligent transportation system

Номер: US20170026893A1
Автор: Paul Lagassey
Принадлежит: Individual

A modular intelligent transportation system, comprising an environmentally protected enclosure, a system communications bus, a processor module, communicating with said bus, having a image data input and an audio input, the processor module analyzing the image data and/or audio input for data patterns represented therein, having at least one available option slot, a power supply, and a communication link for external communications, in which at least one available option slot can be occupied by a wireless local area network access point, having a communications path between said communications link and said wireless access point, or other modular components.

Подробнее
Номер записи: 36
23-01-2020 дата публикации

SYSTEM FOR DETECTING SOUND GENERATION POSITION AND METHOD FOR DETECTING SOUND GENERATION POSITION

Номер: US20200025857A1
Автор: Asano Taishi, Kitano Naofumi, SAITO Shunsuke, TACHIBANA Kenji
Принадлежит:

A system for detecting a sound generation position includes three or more first sound acquisition units and a position detector. The three or more first sound acquisition units acquire a sound of a sound event generated around a first mobile object, and are disposed in positions spaced apart from each other in the mobile object, respectively. The position detector detects a direction or a position where the sound event occurs, based on the difference between acquisition times at which the sound is acquired at the three or more first sound acquisition units. 1. A system for detecting a sound generation position , the system comprising:three or more first sound acquisition units that acquire a sound of a sound event generated around a first mobile object, the three or more first sound acquisition units disposed in positions spaced apart from each other in the first mobile object, respectively; anda position detector that detects a direction or a position where the sound event occurs, based on a difference between acquisition times at which the sound is acquired by the three or more first sound acquisition units.2. The system according to claim 1 , further comprisinga second sound acquisition unit that is mounted to another place different from the first mobile object and acquires the sound of the sound event generated around the another place, andwherein the position detector detects a position where the sound is generated, based on sound information about the sound received from each of the three or more first sound acquisition units and the second sound acquisition unit.3. The system according to claim 2 , further comprisinga second mobile object different from the first mobile object, andwherein the second sound acquisition unit is disposed in the second mobile object.4. The system according to claim 1 , further comprising a time information acquisition unit that acquires time information about a time at which the sound of the sound event is acquired.5. The system ...

Подробнее
Номер записи: 37
24-04-2014 дата публикации

Modular intelligent transportation system

Номер: US20140114555A1
Автор: Paul J. Lagassey
Принадлежит: Individual

A modular intelligent transportation system, comprising an environmentally protected enclosure, a system communications bus, a processor module, communicating with said bus, having a image data input and an audio input, the processor module analyzing the image data and/or audio input for data patterns represented therein, having at least one available option slot, a power supply, and a communication link for external communications, in which at least one available option slot can be occupied by a wireless local area network access point, having a communications path between said communications link and said wireless access point, or other modular components.

Подробнее
Номер записи: 38
02-02-2017 дата публикации

MOBILE DEVICE BASED CONTROL DEVICE LOCATOR

Номер: US20170030999A1
Автор: Brouillette Patrick Alan, Garner Gregory Mack
Принадлежит: ROKU, INC.

Disclosed herein are system, apparatus, article of manufacture, method, and/or computer program product embodiments for a mobile device based control device locator. An embodiment operates by receiving a request to locate a control device, transmitting acoustic token transmission information to the control device to activate an electroacoustic transducer on the control device, receiving an acoustic signal including an acoustic token signal from the control device via a plurality of acoustic sensors, and determining distance information of the control device based on the received acoustic token signal generated by the electroacoustic transducer of the control device. 1. A system comprising:at least one processor; and receive a request to locate a control device,', 'transmit acoustic token transmission information to the control device to activate an electroacoustic transducer on the control device,', 'receive an acoustic signal including an acoustic token signal from the control device via a plurality of acoustic sensors operatively coupled to the at least one processor, and', 'determine distance information of the control device based on the received acoustic token signal generated by the electroacoustic transducer of the control device., 'a memory operatively coupled to the at least one processor, the processor configured to2. The system of claim 1 , wherein the processor is further to:visually present distance information of the control device on a display operatively coupled to the at least one processor, wherein the visually presented distance information includes a first graphical UI element to represent the distance of the control device.3. The system of claim 1 , wherein the processor is further to:determine direction information of the control device based on the received acoustic token signal generated by the electroacoustic transducer of the control device.4. The system of claim 1 , wherein the processor is further to:visually present direction information ...

Подробнее
Номер записи: 39
04-02-2016 дата публикации

ACOUSTIC PROCESSING DEVICE AND ACOUSTIC PROCESSING METHOD

Номер: US20160033615A1
Автор: Kinoshita Tetsuo, NAKADAI Kazuhiro, Nakamura Keisuke, SINAPAYEN Lana, Takahashi Hideyuki
Принадлежит:

An acoustic processing device includes: a sound pickup unit configured to record an acoustic signal; a motion detection unit configured to detect the motion of the device; a self-localization unit configured to estimate the position of the device based on the acoustic signal and the motion; and a use determination unit configured to determine whether or not to use the acoustic signal in a sound source localization unit detecting the position of a target sound source to be detected based on the intensity of a reference signal incoming from a reference sound source determined in advance. 1. An acoustic processing device comprising:a sound pickup unit configured to record an acoustic signal;a motion detection unit configured to detect the motion of the device;a self-localization unit configured to estimate the position of the device based on the acoustic signal and the motion; anda use determination unit configured to determine whether or not to use the acoustic signal in a sound source localization unit detecting the position of a target sound source to be detected based on the intensity of a reference signal incoming from a reference sound source determined in advance.2. The acoustic processing device according to claim 1 ,wherein the sound source localization unit detects the position of the target sound source based on positional information indicating the position estimated by the self-localization unit, a second acoustic signal acquired from a second acoustic processing device, and second positional information acquired from the second acoustic processing device.3. The acoustic processing device according to claim 2 ,wherein the use determination unit transmits master device notification information indicating that the device is a master device to the second acoustic processing device in a wireless manner based on the time at which it is determined to use the acoustic signal and the positional information for sound source localization, and receives the second ...

Подробнее
Номер записи: 40
01-02-2018 дата публикации

PRINTED CIRCUIT BOARD ON WHICH VIBRATION COMPONENT FOR GENERATING VIBRATION IS MOUNTED

Номер: US20180031670A1
Автор: Fukushima Michio, Hada Manabu, Horishita Yusuke, Yokoyama Junnosuke
Принадлежит:

There is provided a printed circuit board, on which a piezoelectric element for generating vibration is mounted, is fixed to a pedestal. Two slits are formed on a straight line that connects first position where the piezoelectric element is mounted on the printed circuit board and a second position where the printed circuit board is in contact with the pedestal. 1. A printed circuit board , on which a vibration component for generating vibration is mounted , is fixed to a pedestal , the printed circuit board comprising:first slit formed on a straight line that connects a first position where the vibration component is mounted on the printed circuit board and a second position where the printed circuit board is in contact with the pedestal.2. The printed circuit board according to claim 1 , wherein a length of the first slit in a lengthwise direction is longer than a length of the vibration component in the lengthwise direction.3. The printed circuit board according to claim 1 , wherein a lengthwise direction of the first slit is a direction orthogonal to a lengthwise direction of the printed circuit board.4. The printed circuit board according to claim 1 , further comprising a second slit formed on a line that connects the first position where the vibration component is mounted on the printed circuit board and the second position where the printed circuit board is in contact with the pedestal.5. The printed circuit board according to claim 4 , wherein a length of the second slit in a lengthwise direction is longer than a length of the vibration component in the lengthwise direction.6. The printed circuit board according to claim 4 , wherein a lengthwise direction of the second slit is a direction orthogonal to a lengthwise direction of the printed circuit board.7. The printed circuit board according to claim 4 , wherein the first slit and the second slit are respectively formed on first and second sides of the vibration component.8. The printed circuit board ...

Подробнее
Номер записи: 41
02-02-2017 дата публикации

ULTRA-SOUND COMMUNICATION SYSTEM

Номер: US20170032367A1
Автор: Daalderop Gerardo, Gamand Patrice, Jos Rik, Rijns Hans, Surdeanu Radu, van Beek Joost, Widdershoven Franciscus
Принадлежит:

A device is disclosed. The device includes a plurality of microphones to receive ultra-sound signals, wherein the ultra-sound signals include an encoded data. The device also includes a microcontroller coupled to the plurality of microphones. The microcontroller is configured to detect the ultra-sound signals through the plurality of microphones. The detection of the ultra-sound signals includes calculating an angle of arrival of the ultra-sound signals at a microphone in the plurality of microphones. The microcontroller is configured to perform a transaction based on the encoded data received via a microphone in the plurality of microphones. 1. A device , comprising:a plurality of microphones to receive ultra-sound signals, wherein the ultra-sound signals includes an encoded data; anda processor coupled to the plurality of microphones, the processor is configurable to detect the ultra-sound signals through the plurality of microphones, wherein the detection includes calculating an angle of arrival of the ultra-sound signals at a microphone in the plurality of microphones, wherein the processor is configurable to perform a transaction based on the encoded data received via a microphone in the plurality of microphones.2. The device of claim 1 , wherein claim 1 , the processor is further configurable to disregard the ultra-sound signals if the measured angle of arrival is outside a preset threshold range.3. The device of claim 1 , wherein the processor is further configurable to measure a distance to a source of the ultra-sound signals.4. The device of claim 3 , wherein the processor is further configurable to disregard the ultra-sound signals if the measured distance is greater or smaller than a preset threshold.5. The device of claim 1 , wherein the processor is further configurable to perform a secret code exchange with a sender of the ultra-sound signals.6. The device of claim 5 , wherein the processor is configurable to encrypt data sent to the sender using the ...

Подробнее
Номер записи: 42
04-02-2021 дата публикации

INFORMATION PROCESSOR, INFORMATION PROCESSING METHOD, AND PROGRAM

Номер: US20210031378A1
Автор: KOHARA ICHITARO, Koyama Yuichiro
Принадлежит: SONY CORPORATION

An information processor includes an action planning unit performing action planning of a moving body acting based on recognition processing, and an evaluation section evaluating reliability of an estimated sound source direction, the action planning unit planning a direction-dependent motion of the moving body corresponding to the sound source direction based on evaluation results of the reliability by the evaluation section and past evaluation achievements; and an information processing method including causing a processor to perform action planning of a moving body acting based on recognition processing, and evaluate reliability of an estimated sound source direction, the performing the action planning further including planning a direction-dependent motion of the moving body corresponding to the sound source direction based on evaluation results of the reliability and past evaluation achievements. 1. An information processor comprising:an action planning unit that performs action planning of a moving body acting on a basis of recognition processing; andan evaluation section that evaluates reliability of an estimated sound source direction,the action planning unit planning a direction-dependent motion of the moving body corresponding to the sound source direction on a basis of a result of the evaluation of the reliability made by the evaluation section and a past evaluation achievement.2. The information processor according to claim 1 , wherein claim 1 , in a case where the reliability falls below a threshold value claim 1 , the action planning unit plans an action related to a change in a posture of the moving body on a basis of the past evaluation achievement.3. The information processor according to claim 2 , wherein the action planning unit plans the action related to the change in the posture of the moving body on a basis of posture information included in the past evaluation achievement of which the reliability is high.4. The information processor according ...

Подробнее
Номер записи: 43
31-01-2019 дата публикации

SYSTEM METHOD FOR ACOUSTIC SOURCE LOCALIZATION WITH AERIAL DRONES

Номер: US20190033422A1
Автор: KUMAR Achanna Anil, MISRA Prasant Kumar, PURUSH OTHAMAN Balamura Lidhar
Принадлежит: TATA CONSULTANCY SERVICES LIMITED

Detecting sound sources in a physical space-of-interest is challenging due to strong ego-noise from micro aerial vehicles (MAVs)′ propeller units, which is both wideband and non-stationary. The present subject matter discloses a system and method for acoustic source localization with aerial drones. In an embodiment, a wideband acoustic signal is received from an aerial drone. Further, the wideband acoustic signal is splitted into multiple narrow sub-bands having cells. Moreover, from a measurement position corresponding to each of the multiple narrow sub-bands, power in each of the cells is measured by forming a beam to each of the cells. In addition, intra-band and inter measurement fusion of the measured power at each of the cells is performed. Also, geo-location of an acoustic source corresponding to the wideband acoustic signal is identified upon performing intra-band and inter measurement fusion of the measured power. 1. A processor-implemented method comprising:receiving, by one or more hardware processors, a wideband acoustic signal from an aerial drone;splitting, by the one or more hardware processors, the wideband acoustic signal into multiple narrow sub-bands having cells;from a measurement position corresponding to each of the multiple narrow sub-bands, measuring, by the one or more hardware processors, power in each of the cells by forming a beam to each of the cells;performing, by the one or more hardware processors, intra-band and inter measurement fusion of the measured power at each of the cells; andidentifying, by the one or more hardware processors, geo-location of an acoustic source corresponding to the wideband acoustic signal upon performing intra-band and inter measurement fusion of the measured power.2. The method of claim 1 , wherein splitting the wideband acoustic signal into multiple narrow sub-bands claim 1 , comprises:splitting the wideband acoustic signal into the multiple narrow sub-bands using N-channel filter bank.3. The method of ...

Подробнее
Номер записи: 44
04-02-2021 дата публикации

ULTRASOUND BASED AIR-WRITING SYSTEM AND METHOD

Номер: US20210033693A1
Автор: AHMED Tarig Ballal Khidir, AL-NAFFOURI TAREQ YOUSEF, Chen Hui
Принадлежит:

A method for motion tracking and text recognition, the method including a step of generating ultrasound waves with a transmitter; a step of receiving the ultrasound waves at a receiver, the receiver including sensors that record the ultrasound waves; a step of estimating with a processor, angle-of-arrival information for the ultrasound waves; a step of associating the angle-of-arrival information with a gesture; a step of extracting features from the gesture; and a step of classifying the gesture as a specific text character based on the extracted features by comparing the extracted features with known text characters stored in one or more templates. 1. A method for motion tracking and text recognition , the method comprising:generating ultrasound waves with a transmitter;receiving the ultrasound waves at a receiver, the receiver including sensors that record the ultrasound waves;estimating with a processor, angle-of-arrival information for the ultrasound waves;associating the angle-of-arrival information with a gesture;extracting features from the gesture; andclassifying the gesture as a specific text character based on the extracted features by comparing the extracted features with known text characters stored in one or more templates.2. The method of claim 1 , wherein the gesture is associated with movement of a user claim 1 , the gesture causing the transmitter to generate the ultrasound waves.3. The method of claim 1 , wherein the classifying includes redundant dictionary matching in which at least one of the one or more templates is extended based on shift and shrink to fit users with different writing speed or different writing style.4. The method of claim 3 , wherein the redundant dictionary matching includes a decision tree that is performed on at least one pair of text characters that is determined to have a similar branch.5. The method of claim 1 , wherein the classifying includes dynamic time warping in which the extracted features are compared with the ...

Подробнее
Номер записи: 45
31-01-2019 дата публикации

MULTIFUNCTION CHANNELIZER/DDC ARCHITECTURE FOR A DIGITAL RECEIVER/EXCITER

Номер: US20190036675A1
Автор: MARR Harry B., ROBINSON Ian S., Thompson Daniel
Принадлежит:

A digital receiver includes a digital synthesizer that generates a local oscillating (LO) signal at a selected frequency, and a signal mixer that receives an input signal and generates a mixed output signal in response to shifting a phase of the input signal based on the frequency of the LO signal. A multi-mode dynamic channelizer is selectively operable in a first mode and a second mode. The first mode generates a plurality of individual channels having a channel size defined by a bandwidth and a gain, and the second mode generates a parallelization of a selected channel. In response to operating in the second mode, the multi-mode dynamic channelizer adjusts at least one of the bandwidth and the gain of the selected channel based on the mixed output signal to change the channel size of the selected channel. 1. A digital receiver comprising:a multi-mode channelizer bank including an array of independent multi-mode dynamic channelizers; anda DDC/data packaging controller in signal communication with the multi-mode channelizer bank to receive at least one decimated baseband output signal,wherein the DDC/data packaging controller performs bit packaging and data tagging on the at least one decimated baseband output signal and generates a data signal indicating the bit packaging and data tagging performed on the at least one decimated baseband output signal.2. The digital receiver of claim 1 , wherein the DDC/data packaging controller receives an individual decimated baseband output signal from each independent multi-mode dynamic channelize included in the multi-mode channelizer bank claim 1 , and performs the bit packaging and data tagging on each individual decimated output signal to generate the data signal having additional decimation.3. The digital receiver of claim 2 , further comprising a plurality of multi-mode dynamic channelizers claim 2 , each of the multi-mode dynamic channelizer including an adaptive filter configured to bandpass different frequency channels ...

Подробнее
Номер записи: 46
11-02-2016 дата публикации

ULTRASOUND-BASED LOCATION DETERMINATION AND INERTIAL NAVIGATION WITH ACCURACY IMPROVEMENT IN DETERMINING CLIENT DEVICE LOCATION

Номер: US20160041251A1
Автор: Neukirch Ulrich Wilhelm Heinz
Принадлежит:

Spatially located ultrasound beacons are provided in known locations within a distributed communication system. The ultrasound beacons are configured to emit ultrasound pulses that can be received by client devices in ultrasound communication range of the beacons. The client devices analyze the received ultrasound pulses from the beacons to determine their time-difference of arrival and as a result, their location(s) within the distributed communication system. The client devices have inertial navigation systems (NS) that calculate client device location as the client device moves, and when received ultrasound signals are below a predefined threshold. Suspected errors in the location information from either the ultrasound or INS systems may be compared against the other system, or compared against reference information, to determine the validity of the location information. 1. A method of an RF communication client device configured to communicate in a distributed communication system for determining location within the distributed communication system , comprising:calculating a first position of the client device;calculating a second position of the client device;evaluating the validity of the second position with respect to the first position; andif the second position is found to be invalid, reevaluating the second position, whereinevaluating the validity of the second position comprises determining whether a velocity required to move from the first position to the second position exceeds a reference velocity.2. The method of claim 1 , wherein the first position is calculated using ultrasound signals received at the client device.3. The method of claim 2 , wherein calculating the first position comprises:recording sound received from a plurality of ultrasound beacons over at least one microphone;filtering the recorded sound about at least one ultrasound beacon frequency;recovering a plurality of ultrasound pulses from the filtered recorded sound;performing a time ...

Подробнее
Номер записи: 47
09-02-2017 дата публикации

METHOD AND SYSTEM FOR ESTIMATING SIGNAL GENERATION POSITION BASED ON SIGNAL STRENGTH

Номер: US20170038454A1
Автор: BANG Seung Chan, KIM Keun Young, KIM Yeong Jin, LEE Jun Hwan, LEE Moon Sik, LEE Sang Ho
Принадлежит:

Provided is a method for estimating a signal generation position based on signal strength, including: measuring a first signal strength which is a strength of a signal propagated from a generation position of the signal at a first measurement point; measuring a second signal strength which is a strength of the signal propagated from the generation position of the signal at a second measurement point distinguished from the first measurement point; calculating an attenuation constant of a medium to which the signal is propagated from the generation position up to the first measurement point and the second measurement point; and estimating the generation position by using the first signal strength, the second signal strength, and the attenuation constant, wherein the first measurement point, the second measurement point, and the generation position are present on one straight line. This method can be extended to estimate a signal generation point in 2D plane or 3D space. 1. A method for estimating a signal generation position based on a signal strength , the method comprising:measuring a first signal strength which is a strength of a signal propagated from a generation position of the signal at a first measurement point;measuring a second signal strength which is a strength of the signal propagated from the generation position of the signal at a second measurement point distinguished from the first measurement point;calculating an attenuation constant of a medium to which the signal is propagated from the generation position up to the first measurement point and the second measurement point; andestimating the generation position by using the first signal strength, the second signal strength, and the attenuation constant,wherein the first measurement point, the second measurement point, and the generation position are present on one straight line.2. The method of claim 1 , wherein when the generation position is x claim 1 ,the first measurement point is x1,the second ...

Подробнее
Номер записи: 48
08-02-2018 дата публикации

SOUND SOURCE SEPARATION APPARATUS

Номер: US20180040327A1
Автор: HARUTA Chiho, ONO Nobutaka, SUNOHARA Masahiro
Принадлежит:

A sound source separation apparatus includes: a separation-matrix processor that transforms a plurality of observation signals corresponding to sounds being propagated from a plurality of sound sources into a frequency-domain signal group the separation-matrix processor updating a separation matrix based on the frequency-domain signal group and transforming the updated separation matrix into time-series filter coefficients to output; a filter-coefficient transformer that partially removes non-causal components from the filter coefficients to transform the filter coefficients, and a separator that supplies the filter coefficients to a filter group, the separator generating a plurality of separation signals separated from the plurality of observation signals corresponding to the separation matrix. 1. A sound source separation apparatus comprising:a plurality of microphones that collects sounds to transform into electric signals, the sounds being propagated from a plurality of sound sources;a separation-matrix processor that transforms a plurality of observation signals into a frequency-domain signal group, the plurality of observation signals being outputted from the plurality of microphones in time series, the separation-matrix processor updating a separation matrix configured to separate sounds of the plurality of sound sources based on the frequency-domain signal group, the separation-matrix processor transforming the updated separation matrix into time-series filter coefficients to output;a filter-coefficient transformer that partially removes non-causal components from the filter coefficients to transform the filter coefficients, the non-causal components being included in the time-series filter coefficients; anda separator that supplies the filter coefficients to a filter group, the filter coefficients having been obtained by the transformation by the filter-coefficient transformer, the filter group performing convolution processes of the plurality of ...

Подробнее
Номер записи: 49
24-02-2022 дата публикации

AUDIO SOURCE LOCALIZATION

Номер: US20220060820A1
Автор: Donley Jacob Ryan, Tourbabin Vladimir
Принадлежит:

An electronic device localizes an audio source by normalizing an amplitude of an audio signal over a time period. The electronic device receives, from one or more microphones of the electronic device, signal(s) representative of audio emitted by an audio source over a time period. The electronic device estimates amplitudes of the signal(s) at a first time within the time period and at a second time within the time period, where the second time is different from the first time. The electronic device normalizes the amplitudes associated with the first and second times to generate normalized amplitudes. The electronic device determines a combined amplitude representative of the audio emitted by the audio source by combining the normalized amplitudes. The electronic device determines, based at least in part on the combined amplitude and motion of the electronic device, an estimated position of the audio source relative to the electronic device. 1. A method comprising: receiving, via the at least one microphone, a signal representative of audio emitted by an audio source over a time period;', 'estimating a first amplitude associated with the signal for a first time within the time period;', 'estimating a second amplitude associated with the signal for a second time within the time period, the second time being different than the first time;', 'normalizing the signal at the first time by the first amplitude to determine a first normalized amplitude;', 'normalizing the signal at the second time by the second amplitude to determine a second normalized amplitude;', 'determining a combined amplitude representative of the audio emitted by the audio source by combining the first normalized amplitude and the second normalized amplitude; and', 'estimating, based at least in part on the combined amplitude, a position of the audio source relative to the device., 'at an electronic device that includes at least one microphone2. The method of claim 1 , wherein the microphone is a ...

Подробнее
Номер записи: 50
16-02-2017 дата публикации

SONAR DEVICE, SIGNAL PROCESSING METHOD, AND RECORDING MEDIUM

Номер: US20170045604A1
Автор: SAITO Ryohei, SAWAMURA Yasumasa
Принадлежит: NEC Corporation

Provided are a sonar device, signal processing method, and recording medium which contribute to improvement in target signal detection ability of an operator. The sonar device comprises a signal detection processing unit and a noise suppression processing unit. The signal detection processing unit calculates a direction vector for each frequency cell and also calculates a resultant vector direction obtained by summing up the direction vectors of all the frequency cells. The noise suppression processing unit calculates, for each frequency cell, the difference between the resultant vector orientation and the signal direction of the frequency cell, and performs a first noise suppression process for suppressing stationary noises included in a received signal such that the noise suppression effect be smaller on a signal of a frequency cell whose signal direction has a smaller difference from the resultant vector direction, and be larger on a signal of a frequency cell whose signal direction has a larger difference from the resultant vector direction. 1. A sonar device comprising:a signal detection processing unit configured to divide a received signal corresponding to an electrical signal including information on the magnitude, frequency and arrival direction of a received sound, into a plurality of cells in the frequency axis direction each constituted by a predetermined frequency range, and calculate a direction vector representing the arrival direction of the received sound for each of the frequency cells, and also calculate a resultant vector obtained by summing up all of the direction vectors of the respective frequency cells, and also a resultant vector direction corresponding to a direction represented by the resultant vector; anda noise suppression processing unit, configured to calculate, for each of the frequency cells, the difference between the resultant vector direction and the signal direction for the frequency cell corresponding to a direction represented ...

Подробнее
Номер записи: 51
08-05-2014 дата публикации

Underwater acoustic navigation systems and methods

Номер: US20140126334A1
Автор: Barry Megdal, Hans Scholze
Принадлежит: SHB INSTRUMENTS Inc

An acoustic underwater navigation system is disclosed. For instance, an underwater receiver determines its position using signals broadcast from an array of acoustic transmitters located near the surface. The position of the array is measured using global positioning system (GPS) technology and the transmitters collectively produce an acoustic signal in which the position and attitude of the array and the GPS time of transmission are encoded. An underwater receiver which is synchronized with the GPS time uses the transmitted position and attitude of the array and the transmission time information to calculate its position.

Подробнее
Номер записи: 52
19-02-2015 дата публикации

METHODS AND APPARATUS TO DETERMINE LOCATIONS OF AUDIENCE MEMBERS

Номер: US20150052541A1
Автор: Chen Jie
Принадлежит:

A disclosed example method involves determining, using a neural network at a stationary unit, a first distance of a first portable audio detector from the stationary unit, the first portable audio detector associated with a first panelist, the stationary unit located in proximity to the media presentation device. The example method also involves determining, using the neural network, a second distance of a second portable audio detector from the stationary unit, the second portable audio detector associated with a second panelist. In response to the first distance being less than a threshold distance, the media is credited as exposed to the first panelist. In response to the second distance being more than the threshold distance, the media is not credited as exposed to the second panelist. 1. A method to credit media presented by a media presentation device , the method comprising:determining, using a neural network at a stationary unit, a first distance of a first portable audio detector from the stationary unit, the first portable audio detector associated with a first panelist, the stationary unit located in proximity to the media presentation device;determining, using the neural network, a second distance of a second portable audio detector from the stationary unit, the second portable audio detector associated with a second panelist;in response to the first distance being less than a threshold distance, crediting the media as exposed to the first panelist; andin response to the second distance being more than the threshold distance, not crediting the media as exposed to the second panelist.2. A method as defined in claim 1 , wherein the neural network determines the first distance by performing a correlation analysis on first audio samples of the media collected by the stationary unit and on second audio samples collected by the first portable audio detector.3. A method as defined in claim 2 , wherein the correlation analysis is performed in the frequency ...

Подробнее
Номер записи: 53
03-03-2022 дата публикации

Mobile body detection device, mobile body detection method, and mobile body detection program

Номер: US20220065976A1
Автор: Shoji Yachida
Принадлежит: NEC Corp

A mobile body detection means 85 : determines, in the case where a position of a first mobile body and a position of a second mobile body are approximately the same, that a mobile body is detected at the position; and determines, in the case where the position of the first mobile body and the position of the second mobile body are different and any of first reliability and second reliability exceeds a threshold, that a mobile body is detected at a position of a mobile body corresponding to the reliability exceeding the threshold.

Подробнее
Номер записи: 54
03-03-2022 дата публикации

CITY-SCALE ACOUSTIC IMPULSE DETECTION AND LOCALIZATION

Номер: US20220065977A1
Автор: DING Yangmin, HAN Shaobo, OZHARAR Sarper, TIAN Yue, Wang Ting
Принадлежит: NEC LABORATORIES AMERICA, INC

Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously enable city-scale acoustic impulse detection and localization using standard, live aerial telecommunications optical fiber cables through the use of distributed acoustic sensing exhibiting an error of less than 1.22 m. 1. A city-scale acoustic impulse detection and localization method comprising: 'a DFOS interrogator and analyzer in optical communication with the length of optical fiber;', 'providing a distributed fiber optic sensing system (DFOS), said system including a length of optical fiber; and'} operating the DFOS during the acoustic impulse event;', 'determining, by the DFOS, that that acoustic impulse event occurred by detecting signals produced by mechanical vibrations induced in the optical fiber from the acoustic impulse event;', 'performing a spatial and temporal analysis on the detected signals;', 'generating a probability distribution of source location of the acoustic impulse event; and', 'outputting one or more indicia of the generated probability distribution., 'said method comprising2. The method of further comprising:determining a set of virtual microphones for the spatial analysis, each one of the virtual microphones located at a different physical position along the length of the fiber.3. The method of further comprising:determining, during temporal analysis, a time of arrival of signals associated with each of the individual virtual microphones.4. The method of wherein each individual one of the virtual microphone locations is one selected from the group consisting of: a down-lead fiber along a pole claim 3 , a spool of fiber claim 3 , a fiber connection point to a pole or other fixed structure claim 3 , and a central part of a length of the fiber.5. The method of further comprising claim 4 , analyzing a signal produced at each of the virtual microphone locations using a change point detection method and ...

Подробнее
Номер записи: 55
14-02-2019 дата публикации

Object detection enhancement using receiver perspective

Номер: US20190049545A1
Автор: Glen J. Anderson
Принадлежит: Intel Corp

Apparatuses and methods for determining the perspective of a receiver of a transmission from the transmitting station are disclosed. The receiver may determine an angle of arrival of the transmission. The angle of arrival may be used to generate perspective information, which may then be transmitted to the transmitting station for use in enhancing recognition and detection of the receiver. In embodiments, the perspective information may comprise an image or images of the receiver generated from a model of the receiver. In embodiments, the transmission may be a millimeter wave transmission.

Подробнее
Номер записи: 56
14-02-2019 дата публикации

PERFORMANCE OF A TIME OF FLIGHT (ToF) LASER RANGE FINDING SYSTEM USING ACOUSTIC-BASED DIRECTION OF ARRIVAL (DoA)

Номер: US20190049579A1
Автор: RESCH KEITH, Shintani Peter, USAMI MORIO
Принадлежит:

An acoustic-based Direction of Arrival (DoA) system uses acoustic information to determine the direction of incoming sound, such as a person talking. The direction of the sound is then used to focus a laser-based time of flight (ToF) system to narrow the area of laser illumination, improving the signal to noise ratio because laser illumination is focused on the direction of the sound. The DoA system also provides elevation information pertaining to the source of the sound, to further narrow the required field of view of the laser ToF system. 1. A device comprising:at least one computer medium that is not a transitory signal and that comprises instructions executable by at least one processor to:receive at least a first acoustic signal from a source of sound;determine at least an azimuthal direction to the source of sound from an origin based at least in part on the first acoustic signal; andtransmit at least a first range-finding beam based on the azimuthal direction determined based at least in part on the first acoustic signal.2. The device of claim 1 , comprising the at least one processor.3. The device of claim 2 , comprising at least one camera providing signals to the at least one processor representative of reflections of the laser range-finding beams.4. The device of claim 1 , comprising at least two microphones on respective devices separate from each other and communicating with each other for providing signals to the at least one processor representative of the first acoustic signal.5. The device of claim 2 , comprising two and only two microphones providing signals to the at least one processor representative of the first acoustic signal.6. The device of claim 2 , comprising at least one directional microphone providing signals to the at least one processor representative of the first acoustic signal.7. The device of claim 1 , wherein the instructions are executable to determine at least an elevational direction to the source of sound from the origin ...

Подробнее
Номер записи: 57
14-02-2019 дата публикации

System for, and method of, changing objects in an environment based upon detected aspects of that environment

Номер: US20190049906A1
Автор: Andrew Bennett
Принадлежит: Point Road Solutions LLC

This document describes a system in which a sensory instrumentality—detecting and monitoring its location within a particular environment—detects and monitors aspects of its environment (such as, for example, sounds, movements, lighting, colors, surfaces, smells, tastes, signals or combinations of the foregoing) and then sends signals that triggers changes in the environment (or objects in the environment) based upon certain relational matches of locations and aspects of the environment detected. The method described in this document includes the steps of detecting and monitoring locations and the surroundings of a sensory instrumentality, comparing the combination of location and surroundings readings with specific parameters, and causing a change in one or more aspects of or in the environment (or one or more objects in the environment) when there is a match between a particular location, the detected aspect of the surroundings, and the specific parameter.

Подробнее
Номер записи: 58
26-02-2015 дата публикации

METHOD FOR VOICE RECORDING AND ELECTRONIC DEVICE THEREOF

Номер: US20150055798A1
Автор: KIM Eung-Ha, KIM Tai-Hyung, MOON Joo-Hyun
Принадлежит:

A method for voice recording and an electronic device thereof are provided. The method includes determining a voice recording mode from among a plurality of voice recording modes, determining a voice beamforming direction according to the determined voice recording mode, and recording voice signals based on the determined voice beamforming direction. 1. A method in an electronic device including a plurality of microphones , the method comprising:receiving a selection of a voice recording mode;determining a voice beamforming direction according to the selection; andrecording voice signals based on the determined voice beamforming direction.2. The method of claim 1 , wherein the voice recording modes respectively correspond to a plurality of voice beamforming directions determined by a microphone array that includes the plurality of microphones.3. The method of claim 1 , further comprising displaying a visual effect corresponding to the determined voice beamforming direction.4. The method of claim 3 , wherein the visual effect corresponding to the determined voice beamforming direction is displayed during recording of the voice signals or before recording of the voice signals.5. The method of claim 3 , wherein the visual effect corresponding to the determined voice beamforming direction is displayed to respectively correspond to each of the voice beamforming modes.6. The method of claim 1 , wherein the voice recording mode is one of a general mode for recording voice signals incoming from all directions claim 1 , an interview mode for recording voice signals incoming from a front direction of a user claim 1 , a dialog mode for recording voice signals incoming from front and rear directions claim 1 , and a voice memo mode for converting voice signals into a text and displaying the text.7. The method of claim 1 , further comprising:determining a speaking person direction in which a speaking person is disposed;selecting a speaker corresponding to the determined speaking ...

Подробнее
Номер записи: 59
25-02-2021 дата публикации

AUDIO-BASED FEEDBACK FOR HEAD-MOUNTABLE DEVICE

Номер: US20210055367A1
Автор: Dey Stephen E., Ness Trevor J., POORE Killian J.
Принадлежит:

A head-mountable device can include multiple microphones for directional audio detection. The head-mountable device can also include a speaker for audio output and/or a display for visual output. The head-mountable device can be configured to provide visual outputs based on audio inputs by displaying an indicator on a display based on a location of a source of a sound. The head-mountable device can be configured to audio outputs based on audio inputs by modifying an audio output of the speaker based on a detected sound and a target characteristic. Such characteristics can be based on a direction of a gaze of the user, as detected by an eye sensor. 1. A head-mountable device comprising:multiple microphones;a display; detecting a sound with the microphones;', 'determining a location of a source of the sound with respect to the head-mountable device; and', 'displaying an indicator on the display based on the location of the source., 'a controller configured to perform the operations of2. The head-mountable device of claim 1 , wherein the location of the source is within a field-of-view provided by the display and the indicator is displayed at a portion of the display that corresponds to the location of the source.3. The head-mountable device of claim 1 , wherein the location of the source is outside a field-of-view of the display and the indicator is displayed at an edge of the display that corresponds to a direction of the location of the source relative to a center of the display.4. The head-mountable device of claim 1 , wherein determining the location of the source of the sound with respect to the head-mountable device comprises determining which one of the microphones is most closely directed toward the location of the source.5. The head-mountable device of claim 1 , wherein:the controller is further configured to perform the operation of determining a target characteristic; anddetermining the location of the source of the sound with respect to the head-mountable ...

Подробнее
Номер записи: 60
23-02-2017 дата публикации

SOUND SOURCE LOCALIZATION USING PHASE SPECTRUM

Номер: US20170052245A1
Автор: Kikkeri Harshavardhana Narayana, Koishida Kazuhito, Regunathan Shankar
Принадлежит:

An array of microphones placed on a mobile robot provides multiple channels of audio signals. A received set of audio signals is called an audio segment, which is divided into multiple frames. A phase analysis is performed on a frame of the signals from each pair of microphones. If both microphones are in an active state during the frame, a candidate angle is generated for each such pair of microphones. The result is a list of candidate angles for the frame. This list is processed to select a final candidate angle for the frame. The list of candidate angles is tracked over time to assist in the process of selecting the final candidate angle for an audio segment. 1. A computer implemented process comprising:receiving signals from a plurality of pairs of microphones into a memory;processing the signals from the microphones to identify when the signals are active;computing frequency spectrum data for the signals;for each pair of active signals, determining a candidate angle for the pair using the frequency spectrum data; andselecting an angle from among the candidate angles for a plurality of pairs of microphones.2. The computer-implemented process of claim 1 , wherein receiving signals includes receiving each signal as a plurality of frames claim 1 , and wherein processing claim 1 , computing claim 1 , determining and selecting are performed on a per frame basis.3. The computer-implemented process of claim 1 , wherein selecting the angle from among the candidate angles comprises selecting the angle using information about prior candidate angles.4. The computer-implemented process of claim 3 , wherein selecting further comprises:tracking a history of candidate angles over multiple frames; andupdating the history with the candidate angles from the current frame.5. The computer-implemented process of claim 4 , further comprising selecting the angle from the history which has a phase distortion less than or equal to the minimum phase distortion of all entries.6. The ...

Подробнее
Номер записи: 61
14-02-2019 дата публикации

Orientation-Based Playback Device Microphone Selection

Номер: US20190052985A1
Автор: Kadri Romi, Reilly Jonathon, Welch Brendan
Принадлежит:

Aspects of a multi-orientation playback device including at least one microphone array are discussed. A method may include determining an orientation of the playback device which includes at least one microphone array and determining at least one microphone training response for the playback device from a plurality of microphone training responses based on the orientation of the playback device. The at least one microphone array can detect a sound input, and the location information of a source of the sound input can be determined based on the at least one microphone training response and the detected sound input. Based on the location information of the source, the directional focus of the at least one microphone array can be adjusted, and the sound input can be captured based on the adjusted directional focus. 1. A playback device comprising:a top face;a bottom face opposite the top face, wherein the bottom face comprises a longest face of the playback device;a side face perpendicular to the top face and the bottom face; a first subset of one or more microphones positioned along the top face; and', 'a second subset of one or more microphones positioned along the side face;, 'a set of microphones comprisingan orientation sensor;one or more processors; and determining that the playback device is in a horizontal orientation based on an indication from the orientation sensor that a longest face of the playback device is substantially parallel to a surface on which the playback device is positioned, wherein, in the horizontal orientation, the bottom face is substantially parallel to the surface and the side face is substantially perpendicular to the surface;', 'selecting the first subset of one or more microphones instead of the second subset of one or more microphones for sound input detection based on the determination that the playback device is in the horizontal orientation;', 'detecting, via the first subset of one or more microphones, a sound input;', 'processing ...

Подробнее
Номер записи: 62
13-02-2020 дата публикации

Playback Based on User Settings

Номер: US20200053504A1
Автор: Reilly Jonathon, Van Erven Niels
Принадлежит:

Example techniques relate to adjusting playback settings based on listener location. An example implementation involves a playback device receiving instructions to play back audio content in the first zone and first location data indicating first locations of one or more users relative to the first zone. The playback device determines that one or more location-based listener preferences are set in the media playback system and generates a sound field in the listening environment according to the location-based listener preferences and the first locations of the one or more users relative to the first zone. The playback device receives second location data indicating second locations of one or more users relative to the first zone and modifies the sound field in the listening environment according to the location-based listener preferences and the second locations of the one or more users relative to the first zone. 1. A media playback system to be operated in a listening environment , the media playback system comprising:a first zone including a first playback device;a network interface;one or more location sensors;one or more processors; receiving, via the network interface, data representing instructions to play back audio content in the first zone;', 'receiving, via the one or more location sensors, first location data indicating first locations of one or more users relative to the first zone;', 'determining that one or more location-based listener preferences are set in the media playback system;', 'generating a sound field in the listening environment according to (i) the location-based listener preferences and (ii) the first locations of the one or more users relative to the first zone, wherein generating the sound field comprises the first playback device rendering the audio content;', 'receiving, via the one or more location sensors, second location data indicating second locations of one or more users relative to the first zone, wherein the second locations ...

Подробнее
Номер записи: 63
15-05-2014 дата публикации

Approaching vehicle detecting system and approaching vehicle detecting method

Номер: US20140136096A1
Автор: Akira Ogawa, Hideki Banno, Hisashi Satonaka, Jun Sato, Keiichi Yamada, Kensaku Asahi, Osami Yamamoto, Ryuji Funayama
Принадлежит: MEIJO UNIVERSITY, Toyota Motor Corp

An approaching vehicle detecting system that detects an approaching vehicle on the basis of sounds collected by a plurality of sound collectors mounted on a host vehicle determines whether a transverse moving direction of a sound source detected by the plurality of sound collectors is a direction approaching the host vehicle, determines whether a vertical position of the sound source detected using the plurality of sound collectors is in the same plane as that of the host vehicle, and detects that sound source as the approaching vehicle when it is determined that the transverse moving direction of the sound source is the direction approaching the host vehicle and the vertical position of the sound source is in the same plane as that of the host vehicle.

Подробнее
Номер записи: 64
05-03-2015 дата публикации

SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND SOUND PROCESSING PROGRAM

Номер: US20150063069A1
Автор: IMAI Michita, NAKADAI Kazuhiro, Nakamura Keisuke, SINAPAYEN Lana
Принадлежит:

A sound processing device includes a sound collection unit configured to record a sound signal, a tilt information acquisition unit configured to acquire tilt information on a tilt of the sound processing device, an azimuth estimation unit configured to estimate azimuths of a sound source in a plane in which the sound collection unit is arranged based on the sound signals which are recorded by the sound collection unit at least at two times; and an elevation angle estimation unit configured to estimate an elevation angle of the sound source with respect to the plane in which the sound collection unit is arranged based on the tilt information acquired by the tilt information acquisition unit and the azimuths estimated by the azimuth estimation unit at least at two times. 1. A sound processing device comprising:a sound collection unit configured to record a sound signal;a tilt information acquisition unit configured to acquire tilt information on a tilt of the sound processing device;an azimuth estimation unit configured to estimate azimuths of a sound source in a plane in which the sound collection unit is arranged based on the sound signals which are recorded by the sound collection unit at least at two times; andan elevation angle estimation unit configured to estimate an elevation angle of the sound source with respect to the plane in which the sound collection unit is arranged based on the tilt information acquired by the tilt information acquisition unit and the azimuths estimated by the azimuth estimation unit at least at two times.2. The sound processing device according to claim 1 , wherein the elevation angle estimation unit is configured to calculate a rotation matrix from a world coordinate system to a local coordinate system of the sound processing device based on the tilt information acquired by the tilt information acquisition unit claim 1 , and to estimate the elevation angle of the sound source based on the calculated rotation matrix and the azimuths ...

Подробнее
Номер записи: 65
21-02-2019 дата публикации

Floating Base Vector Sensor

Номер: US20190056473A1
Автор: Brian H. Houston, Douglas M. Photiadis, Joseph A. Bucaro, Maxim K. Zalalutdinov
Принадлежит: US Department of Navy

Systems and methods are provided for sensing acoustic signals using a floating base vector sensor. A vector sensor according to an embodiment of the present disclosure can be used to detect and characterize low frequency sound wave(s) in a viscous medium (e.g., air, water, etc.) by detecting a periodic motion of the media particles associated with the sound wave(s). The orientation of the particle velocity deduced from such measurements can provide information regarding the wave vector of the sound wave(s), can define the direction of arrival (DOA) for the acoustic signal, and can assist locating the source of the sound of interest.

Подробнее
Номер записи: 66
03-03-2016 дата публикации

AN AUTONOMOUS SURVEILLANCE SYSTEM FOR BLIND SOURCES LOCALIZATION AND SEPARATION

Номер: US20160061929A1
Автор: Wu Sean F.
Принадлежит:

A sound monitoring system provides autonomous and silent)) surveillance to monitor sound sources stationary or moving in 3D space and a blind separation of target acoustic signals. The underlying principle of this technology is a hybrid approach that uses: 1) passive sonic detection and ranging method that consists of iterative triangulation and redundant checking to locate the Cartesian coordinates of arbitrary sound sources in 3D space, 2) advanced signal processing to sanitize the measured data and enhance signal to noise ratio, and 3) short-time source localization and separation to extract the target acoustic signals from the directly measured mixed ones. 1. A method for monitoring sound including the steps of:a) measuring sound from a plurality of sound sources at a plurality of locations;b) dividing the sound measurements into time segments; andc) using a computer to locate the sound sources within a plurality of frequency bands in each of the plurality of time segments.2. The method of further including the step of combining signals in the plurality of frequency bands and in the plurality time signals for each of the plurality of sound sources.3. The method of further including the step of: using the computer to perform iterative triangulation and redundant checking to locate the Cartesian coordinates of the sound sources in 3D space.4. The method of further including the step of: the computer performing short-time source localization and separation to extract acoustic signals from the sound sources from the directly measured mixed ones.5. The method of wherein the number of sound sources claim 1 , locations of the sound sources and frequencies of the sounds sources are unknown.6. A system for monitoring sound comprising:a plurality of transducers measuring sound at a plurality of locations; anda computer receiving signals indicating the sound measurements from the plurality of transducers, the computer programmed to divide the sound measurements into time ...

Подробнее
Номер записи: 67
03-03-2016 дата публикации

METHOD AND DEVICE FOR PHASE-BASED LOCALIZATION OF A TARGET DEVICE USING INTERVAL ANALYSIS

Номер: US20160061930A1
Автор: IBN SEDDIK Mohamed Saad, JAULIN Luc
Принадлежит:

Location of underwater moving target device carrying a receiver configured to detect acoustic waves emitted at a known location is estimated such that to be consistent with detected velocity and orientation of the target device, and with a current phase of a signal corresponding to the acoustic waves detected at the target device. A stack including one or more boxes obtained by applying contractors to location boxes is output as the estimate of the location of the moving target device. 1. A method for estimating a location of a target device moving underwater and carrying a receiver configured to detect acoustic waves emitted at a known location , the method comprising:measuring, at a first time, a velocity of the target device, an orientation of the target device and a signal corresponding to the acoustic waves emitted at the known location and detected at the target device;generating one or more location boxes that include the location of the target device, at the first time; applying at least one contractor such that a contracted box meets constraints according to the velocity, the orientation and a phase of the signal, and', 'if a width of the contracted box is less than a predetermined localizing precision, placing the contracted box in a stack of boxes, otherwise splitting the contracted box into two location boxes and placing the two location boxes in the stack; and, 'for each of the location boxes,'}outputting the stack of boxes as an estimate of the location of the target device at the first time.2. The method of claim 1 , wherein steps of the method performed for each of the location boxes are repeated claim 1 , the boxes in the stack at an end of one repetition being the location boxes used for performing a next repetition of the steps.3. The method of claim 1 , wherein claim 1 , the stack of boxes is output when a number of repetitions equals a predetermined number claim 1 , none of the boxes in the stack is wider than the predetermined localizing ...

Подробнее
Номер записи: 68
03-03-2016 дата публикации

ESTIMATION SYSTEM AND RECEPTION NODE

Номер: US20160061931A1
Автор: Doi Yusuke, Sakamoto Takafumi, Tohzaka Yuji
Принадлежит:

According to an embodiment, an estimation system includes a first node, a second node, and an estimator. The estimator estimates, based on a propagation time of a wave, (i) a distance from a first transmission source having transmitted the wave to the first node or (ii) a location of the first transmission source or the first node. The first node includes a wave receiver and a first wireless communicator. The wave receiver receives the wave. The first wireless communicator incorporates a first timer, synchronizes the first timer with a second timer built in the second node via wireless communication with the second node, acquires reception time information indicative of a point in time of reception of the wave from the first timer, and outputs the reception time information to the estimator. 1. An estimation system comprising:a node group that includes a first node receiving a first wave and a second node communicating wirelessly with the first node; andan estimator that estimates, based on a propagation time of the first wave, (i) a distance from a first transmission source having transmitted the first wave to the first node or (ii) a location of the first transmission source or the first node, wherein a first wave receiver that receives the first wave; and', 'a first wireless communicator that incorporates a first timer, synchronizes the first timer with a second timer built in the second node via wireless communication with the second node, acquires a first piece of reception time information indicative of a point in time of reception of the first wave from the first timer, and outputs the first piece of reception time information to the estimator., 'the first node comprises2. The system according to claim 1 , whereinthe node group further includes a third node and a fourth node that communicate wirelessly with the first node and the second node,the first wireless communicator synchronizes the first timer with a second timer, a third timer, and a fourth timer ...

Подробнее
Номер записи: 69
20-02-2020 дата публикации

METHODS AND SYSTEMS FOR SOUND SOURCE LOCATING

Номер: US20200057131A1
Автор: Gao Ya, Qiao Gang
Принадлежит: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.

A method and system for locating a sound source are provide. The method may include detecting a sound signal of a sound by each of two audio sensors. The method may also include converting the sound signals detected by the two audio sensors from a time domain to a frequency domain. The method may further include determining a high frequency ratio of each of the sound signals in the frequency domain. The method may further include determining a direction of the sound source based on the high frequency ratios. 1. A system comprisinga storage device storing a set of instructions; and detecting a sound signal of a sound source;', 'determining a position of the sound source based on a high frequency ratio of the sound signal in a frequency domain, wherein the high frequency ratio relates to a percentage of a high frequency component in the sound signal;', 'determining, based on the position of the sound source, a control signal; and', 'causing a device to operate according to the control signal., 'a processor in communication with the storage device, wherein when executing the set of instructions, the processor is configured to cause the system to perform operations including2. The system of claim 1 , wherein the device is an audio sensor claim 1 , the causing the device to operate according to the control signal comprising:causing the audio sensor to obtain a sound signal according to the control signal.3. The system of claim 1 , wherein the processor is further configured to cause the system to perform the operations including:determining reference information relating to the sound source, the reference information including at least one of wind speed or wind direction; anddetermining three-dimensional coordinates of the position of the sound source based on the sound signal and the reference information.4. The system of claim 1 , wherein the processor is further configured to cause the system to perform the operations including:determining reference information ...

Подробнее
Номер записи: 70
20-02-2020 дата публикации

DEVICE AND METHOD FOR ESTIMATING DIRECTION OF ARRIVAL

Номер: US20200057132A1
Автор: CHEN Kainan, GEIGER Jürgen, GROSCHE Peter, TAGHIZADEH Mohammad
Принадлежит:

A device for estimating Direction of Arrival (DOA) of sound from Q≥1 sound sources is provided. The device is configured to obtain a phase difference matrix, which includes measured phase difference values, each of the measured phase difference values being a measured value of a phase difference between two microphone units for a frequency bin in a range of frequencies of the sound. The device is further configured to generate a replicated phase difference matrix by replicating the measured phase difference values to other potential sinusoidal periods, calculate a DOA value for each phase difference value in the replicated phase difference matrix, and determine, as Q DOA results, the Q most prominent peak values in a histogram generated based on the calculated DOA values. 1. A device for estimating Direction of Arrival (DOA) of sound from Q≥1 sound sources , the device being a component in a system comprising a plurality of microphone units , the device being configured to:obtain a phase difference matrix including measured phase difference values, each of the measured phase difference values being a measured value of a phase difference between two microphone units of the plurality of microphone units for a frequency bin in a range of frequencies of the sound,generate a replicated phase difference matrix by replicating the measured phase difference values to other potential sinusoidal periods,calculate a DOA value for each phase difference value in the replicated phase difference matrix, anddetermine, as Q DOA results, the Q most prominent peak values in a histogram generated based on the calculated DOA values.5. The device according to claim 1 , wherein the device is further configured to:generate a first histogram from the calculated DOA values, anddetermine, as the Q DOA results, the Q most prominent peak values in the first histogram.6. The device according to claim 1 , wherein the device is further configured to:generate a first histogram from the calculated ...

Подробнее
Номер записи: 71
01-03-2018 дата публикации

Drone delivery using earpiece

Номер: US20180060811A1
Автор: Boesen Peter Vincent
Принадлежит: BRAGI GmbH

A method of using a set of earpieces to enable a drone delivery includes determining by a drone a position of a user of the set of earpieces, determining by the set of earpieces a position of the drone relative to the set of the earpieces, electronically communicating delivery information from the drone to the set of the earpieces, generating audio messages at the set of the earpieces based on the delivery information from the drone and the position of the drone relative to the set of the earpieces, and conveying by the drone a payload from the drone to the user of the set of earpieces. The set of earpiece includes a left earpiece and a right earpiece wherein each of the left earpiece and the right earpiece comprises an earpiece housing, a speaker, a microphone, a processor, a transceiver, and an inertial sensor. 1. A method of using a set of earpieces to enable a drone delivery comprising:determining by a drone a position of a user of the set of earpieces;determining by the set of earpieces a position of the drone relative to the set of the earpieces;electronically communicating delivery information from the drone to the set of the earpieces;generating audio messages at the set of the earpieces based on the delivery information from the drone and the position of the drone relative to the set of the earpieces; andconveying by the drone a payload from the drone to the user of the set of earpieces;wherein the set of earpiece comprises a left earpiece and a right earpiece wherein each of the left earpiece and the right earpiece comprises an earpiece housing, a speaker, a microphone, a processor, a transceiver, and an inertial sensor.2. The method of wherein the audio messages indicate the position of the drone relative to the set of the earpieces.3. The method of further comprising placing an order to be delivered via the drone delivery using the set of earpieces.4. The method of wherein the determining by the set of earpieces the position of the drone relative to the ...

Подробнее
Номер записи: 72
21-02-2019 дата публикации

Remote Control With Presence Sensor

Номер: US20190058942A1
Автор: Ali Vassigh, Gregory Mack Garner, Soren Riise
Принадлежит: Roku Inc

Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for controlling functions of an audio responsive electronic device based on a presence detector (e.g., a motion sensor) to improve power usage and functional performance. In some embodiments, an audio responsive electronic device operates to intelligently turn on and turn off components in response to the detected presence of a user. In some embodiments, an audio responsive electronic device operates to suppress noise from the display device (or other sources of noise), and enhance audio commands from a user (or other sources of audio commands). In some embodiments, a media device is configured to adjust a transmission pattern to an audio responsive electronic device based on user position.

Подробнее
Номер записи: 73
03-03-2016 дата публикации

METHOD AND APPARATUS FOR MANAGING AUDIO SIGNALS

Номер: US20160066083A1
Автор: BAE Minho, HWANG Hochul, KIM Gangyoul, KUM Jongmo, LEE Namil, SON Beakkwon
Принадлежит:

A method comprising: detect a first acoustic signal by using a microphone array; detecting a first angle associated with a first incident direction of the first acoustic signal; and storing, in a memory, a representation of the first acoustic signal and a representation of the first angle. 1. A method comprising:detecting a first acoustic signal by using a microphone array;detecting a first angle associated with a first incident direction of the first acoustic signal; andstoring, in a memory, a representation of the first acoustic signal and a representation of the first angle.2. The method of claim 1 , wherein the detecting the first angle comprises:identifying a plurality of angles; andmatching each one of the plurality of angles to a corresponding audio signal based on an energy level of the corresponding audio signal.3. The method of claim 1 , further comprising claim 1 , forming a beam having the first angle claim 1 , wherein the representation of the first acoustic signal is generated by using the beam.4. The method of claim 1 , wherein the storing the representation of the first acoustic signal includes storing an audio signal generated by one of the microphones in the array andwherein storing the audio signal includes storing time information of the audio signal.5. The method of claim 1 , wherein the memory is further configured to store speaker recognition information claim 1 , and the method further comprising:identifying a first speaker who is a source of the first acoustic signal and a second speaker who is a source of a second acoustic signal, wherein the first speaker and the second speaker are identified based on the speaker recognition information; andstoring in the memory an indication that the first speaker is the source of the first acoustic signal, and an indication that the second speaker is the source of the second acoustic signal.6. The method of claim 5 , wherein the speaker recognition information is created by using a sound-shot function.7. ...

Подробнее
Номер записи: 74
17-03-2022 дата публикации

Time-synchronized Distributed Passive Captures

Номер: US20220082679A1
Автор: Lovegrove Steven John, Somasundaram Kiran Kumar, Vo Minh Phuoc
Принадлежит:

A method includes receiving a first wireless signal detected by a first device in an environment, the first wireless signal including a first distortion pattern caused by an object moving in the environment, receiving a second wireless signal detected by a second device in the environment, the second wireless signal including a second distortion pattern caused by the object moving in the environment, determining, by comparing the first distortion pattern to the second distortion pattern, that the first distortion pattern and the second distortion pattern correspond to a same movement event associated with the object moving in the environment, determining a timing offset between the first device and the second device based on information associated with the first distortion pattern and the second distortion pattern, and determining, based on the timing offset, temporal correspondences between data generated by the first device and data generated by the second device. 1. A method comprising:receiving a first wireless signal detected by a first device in an environment, the first wireless signal including a first distortion pattern caused by an object moving in the environment;receiving a second wireless signal detected by a second device in the environment, the second wireless signal including a second distortion pattern caused by the object moving in the environment;determining, by comparing the first distortion pattern to the second distortion pattern, that the first distortion pattern and the second distortion pattern correspond to a same movement event associated with the object moving in the environment;determining a timing offset between the first device and the second device based on information associated with the first distortion pattern and the second distortion pattern; anddetermining, based on the timing offset, temporal correspondences between data generated by the first device and data generated by the second device.2. The method of claim 1 , wherein the ...

Подробнее
Номер записи: 75
27-02-2020 дата публикации

Method for Three-Dimensional Tracking of Sinusoidal Acoustic Source Using a Rotating Microphone

Номер: US20200064438A1
Автор: Hobbs Stephen L., Swanson Paul D.
Принадлежит:

A method for determining the location of a first source. A first member is provided. A first tip microphone is attached to a first end of the first member. A first static microphone is provided. An initial frequency is recorded at the static microphone. The first member is rotated at an angular velocity. A tangential distance is calculated from the first tip microphone to the source. A source angle is calculated from the first member to the source. A height of the source is calculated. 1. A method for determining a location of a first source comprising:providing a first member, wherein a first tip microphone is attached to a first end of said first member;recording an initial frequency;rotating the first member at an angular velocity;calculating a tangential distance from the first tip microphone to the source;calculating a source angle from the first member to the source; andcalculating a height of the source.3. The method of claim 1 , further comprising the step of recording for each angle of rotation θ a measured frequency f.4. The method of claim 1 , further comprising the step of determining a maximum measured frequency fand a corresponding maximum angle θ.5. The method of claim 1 , further comprising the step of determining a minimum measured frequency fand a corresponding minimum angle θ.9. The method of claim 1 , further comprising the step of providing a second member with a second tip microphone attached to a second end of said second member.10. The method of claim 9 , further comprising the step of orienting the second member at an angle different from the first member.11. The method of claim 10 , further comprising the step of calculating a second height hof the source.12. The method of claim 11 , further comprising the step of comparing the height of the source h with hto determine whether h is above or below the first member.14. The method of claim 13 , further comprising the step of providing a second member with a second tip microphone attached to a ...

Подробнее
Номер записи: 76
10-03-2016 дата публикации

ACOUSTIC SOURCE TRACKING AND SELECTION

Номер: US20160071526A1
Автор: Donnelly Brian, OHIOMOBA PATRICK, STEIN Noah Daniel, Vigoda Benjamin, WINGATE David
Принадлежит: ANALOG DEVICES, INC.

The present disclosure relates generally to improving acoustic source tracking and selection and, more particularly, to techniques for acoustic source tracking and selection using motion or position information. Embodiments of the present disclosure include systems designed to select and track acoustic sources. In one embodiment, the system may be realized as an integrated circuit including a microphone array, motion sensing circuitry, position sensing circuitry, analog-to-digital converter (ADC) circuitry configured to convert analog audio signals from the microphone array into digital audio signals for further processing, and a digital signal processor (DSP) or other circuitry for processing the digital audio signals based on motion data and other sensor data. Sensor data may be correlated to the analog or digital audio signals to improve source separation or other audio processing. 1. A system for processing at least one signal acquired using one or more acoustic sensors , the at least one signal having contributions from one or more acoustic sources , the system comprising:a memory configured to store computer executable instructions; and obtain sensor data from one or more sensors other than the one or more acoustic sensors; and', 'use the sensor data in executing an acoustic source separation algorithm on the at least one acquired signal to separate from the at least one acquired signal one or more contributions from a predetermined acoustic source of the one or more acoustic sources., 'a processor communicatively connected to or comprising the memory and configured, when executing the instructions, to2. The system according to claim 1 , wherein the acoustic source separation algorithm comprises:computing time-dependent spectral characteristics from the at least one acquired signal, the spectral characteristics comprising a plurality of components;computing direction estimates from at least two signals acquired using one or more acoustic sensors, each ...

Подробнее
Номер записи: 77
19-03-2015 дата публикации

METHODS AND SYSTEMS FOR UNDERWATER LOCATION

Номер: US20150078135A1
Автор: FATTAH Eric Abdel
Принадлежит: Liquivision Products, Inc.

An electronic device for locating an underwater target transmitting a signal comprises a housing; a display; at least one transducer for receiving the signal from the underwater target; a processor connected to receive signals from the at least one transducer and to control the display; and a memory storing computer readable instructions which, when executed by the processor, cause the processor to: determine a bearing to the underwater target based on the signals from the at least one transducer; determine an uncertainty in the determined bearing; and, control the display to display the determined bearing and uncertainty. 1. An electronic device for locating an underwater target transmitting a signal , the electronic device comprising:a housing;a display;at least one transducer for receiving the signal from the underwater target;a processor connected to receive signals from the at least one transducer and to control the display; and determine a bearing to the underwater target based on the signals from the at least one transducer;', 'determine an uncertainty in the determined bearing; and,', 'control the display to display the determined bearing and uncertainty., 'a memory storing computer readable instructions which, when executed by the processor, cause the processor to2. The electronic device of wherein the display displays a graphical representation of the determined bearing and uncertainty on a generally circular map centered on the electronic device claim 1 , wherein the graphical representation of the determined bearing and uncertainty comprises a circular section centered on the determined bearing and having an angular extent based on the uncertainty.3. The electronic device of wherein a second bearing and uncertainty are determined based on a subsequent signal received from the underwater target.4. The electronic device of wherein the display displays a graphical representation of the second bearing and uncertainty superimposed over a graphical ...

Подробнее
Номер записи: 78
11-03-2021 дата публикации

An Apparatus, Method and Computer Program for Audio Signal Processing

Номер: US20210076130A1
Автор: Juha Vilkamo, Mikko-Ville Laitinen
Принадлежит: NOKIA TECHNOLOGIES OY

Examples of the disclosure relate to apparatus, electronic devices, methods and computer programs. The apparatus are configured to obtain at least a first audio signal and a second audio signal wherein the first audio signal and the second audio signal are captured by a microphone array including at least two microphones. The apparatus are also configured to identify at least a first direction and at least a second direction. The first and second directions are identified for a plurality of frequency bands. The first direction and the second direction are identified by using delay parameters between at least the first audio signal and the second audio signal.

Подробнее
Номер записи: 79
07-03-2019 дата публикации

SOUND DIRECTION DETECTION SENSOR INCLUDING MULTI-RESONATOR ARRAY

Номер: US20190072635A1
Автор: HONG Hyeokki, Kang Sungchan, KIM Cheheung, PARK SANGHA, RHEE Choongho, YOON Yongseop
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided is a sound direction detection sensor capable of detecting a direction from which sound is coming by using a multi-resonator array. The disclosed sound direction detection sensor includes two resonator arrays, each including a plurality of resonators having different resonance frequencies. The two resonator arrays have different directivities. Each resonator array serves as an audio sensor, and the sound direction detection sensor detects a direction from which sound is incident, regardless of a distance between audio sensors. 1. A sound direction detection sensor comprising:a first resonator array comprising a first plurality of resonators; anda second resonator array comprising a second plurality of resonators,wherein a directivity of the first resonator array is different from a directivity of the second resonator array.2. The sound direction detection sensor of claim 1 , wherein frequency response characteristics of the first resonator array are the same as frequency response characteristics of the second resonator array.3. The sound direction detection sensor of claim 1 , wherein resonance frequencies of the first plurality of resonators and resonance frequencies of the second plurality of resonators are within an audible frequency band.4. The sound direction detection sensor of claim 1 , wherein the directivity of the first resonator array forms an angle of 90 degrees with the directivity of the second resonator array.5. The sound direction detection sensor of claim 1 , further comprising a calculator configured to calculate a direction of sound based on an output of the first resonator array and an output of the second resonator array.6. The sound direction detection sensor of claim 5 , wherein the calculator is further configured to detect the direction of sound by comparing the output of the first resonator array with the output of the second resonator array.7. The sound direction detection sensor of claim 6 , wherein the calculator is further ...

Подробнее
Номер записи: 80
17-03-2016 дата публикации

Monitoring device, monitoring method and monitoring program

Номер: US20160078286A1
Автор: Hiroyoshi Miyano, Masahiro Tani, Osamu Houshuyama, Ryoma Oami, Takafumi Koshinaka
Принадлежит: NEC Corp

A monitoring device includes a crowd behavior analysis unit 21 and an abnormality degree calculation unit 24. The crowd behavior analysis unit 21 specifies a behavior pattern of a crowd from input video. The abnormality degree calculation unit 24 calculates an abnormality degree from a change of the behavior pattern.

Подробнее
Номер записи: 81
05-03-2020 дата публикации

LOCATION-BASED VOICE RECOGNITION SYSTEM WITH VOICE COMMAND

Номер: US20200072937A1
Автор: Baek Seungmin, SON Seungbae
Принадлежит: Luxrobo Co., Ltd.

An object of the present invention is to facilitate recognition of a voice command of a user in a situation where multiple devices including microphones are connected through a sensor network. A relative location of each device is determined and a location and a direction of the user are tracked through a time difference in which the voice command is applied. The command is interpreted based on the location and the direction of the user. Such a method as a method for a sensor network, Machine to Machine (M2M), Machine Type Communication (MTC), and Internet of Things (IoT) may be used for an intelligent service (smart home, smart building, etc.), digital education, security and safety related services, and the like. 1. A location-based voice recognition system comprising:a plurality of voice command receiving devices including at least one microphone; anda sensor network control device connected with the plurality of voice command receiving devices through a sensor network,wherein the sensor network control device includesa sensor location determining unit determining relative locations of the plurality of voice command receiving devices,a user location calculating unit calculating a location of a user based on the relative locations,an utterance direction calculating unit calculating a converted voice magnitude based on voice magnitudes of the plurality of respective voice command receiving devices and determining an utterance direction range of the user based on the converted voice magnitude, anda target device selecting unit selecting a target voice command receiving device as a target of a voice command among the plurality of voice command receiving devices according to the utterance direction range,the converted voice magnitude is a voice magnitude when it is assumed that the plurality of voice command receiving devices is at the same distance from the user.2. The location-based voice recognition system of claim 1 , wherein the utterance direction calculating ...

Подробнее
Номер записи: 82
05-03-2020 дата публикации

Small spatial sound source orientation detecting device and method thereof

Номер: US20200072938A1
Автор: WEI Shi
Принадлежит: Vecsense Technology Co Ltd

The present invention relates to a small spatial sound source orientation detecting device, including a circuit board; three or more MEMS acoustic-electric transducers fixedly arranged on the circuit board and centrosymmetric distribution. The distance between adjacent MEMS acoustic-electric transducers is not more than one-half of the shortest wavelength of the sound source signal; and a micro-control unit, each MEMS acoustic-electric transducer is electrically connected to the micro-control unit respectively. The micro-control unit is to obtain the orientation information of the spatial sound source based on the acoustic signals collected by three or more MEMS acoustic-electric transducers. The present invention also provides a spatial sound source orientation detection method. The small spatial sound source orientation detecting device of the present invention has an ultra-small space size, and can accurately detect the orientation information of the sound source.

Подробнее
Номер записи: 83
18-03-2021 дата публикации

SINGLE ANTENNA DIRECTION FINDING AND LOCALIZATION

Номер: US20210080533A1
Автор: De Flaviis Franco, Kabiri Saman, Kornaros Evangelos
Принадлежит:

Single antenna direction finding is performed by physically moving a device to different device positions. As the device is physically moved, signal processing hardware within the device is used to make a plurality of signal response measurements of a signal detected by a single antenna of the device. The signal emanates from an object. The plurality of signal response measurements are made by sampling signal response at a plurality of sample times. A means for 3-dimensional positioning makes a plurality of inertial measurements at the plurality of sample times. The plurality of signal response measurements and the plurality of inertial measurements are used to produce a virtual response array vector. The virtual response array vector is used to calculate a direction of arrival from the object to the device. 1. A method for single antenna direction finding , the method being performed by a device , the method comprising: using hardware within the device to make a plurality of signal response measurements of a signal detected by a single antenna of the device, the signal emanating from an object, the plurality of signal response measurements being made by sampling signal response at a plurality of sample times, wherein during the plurality of sample times, the device is at a plurality of different device positions, and', 'using a means for 3-dimensional positioning to make a plurality of measurements at the plurality of sample times, the plurality of measurements providing information that allows calculation of relative device position of the plurality of different device positions with respect to each other;, 'physically moving the device to different device positions, and as the device is physically moving, performing the following, 'collecting device position data and signal response data, includingusing the plurality of signal response measurements and the plurality of measurements to produce a virtual response array vector; and,using the virtual response array ...

Подробнее
Номер записи: 84
26-03-2015 дата публикации

MOTION MODIFIED STEERING VECTOR

Номер: US20150085615A1
Автор: Hunt John Miles, Li Jian, Nicholson John Weldon, Perrin Steven Richard, Wang Song, Zhang Jianbang
Принадлежит: Lenovo (Singapore) Pte, Ltd.

For a motion modified steering vector, a motion module modifies a prior steering vector with a motion vector. A steering module spatially filters audio signals using the modified steering vector. 1. An apparatus comprising:a microphone array;a motion sensor;a processor;a memory storing computer readable code executable by the processor, the computer readable code comprising:a motion module modifying a prior steering vector with a motion vector; anda steering module spatially filtering audio signals using the modified steering vector.2. The apparatus of claim 1 , motion module further generating the motion vector using the motion sensor.3. The apparatus of claim 1 , the motion module further:receiving audible signals from the microphone array; andgenerating the audio signals from the audible signals.4. The apparatus of claim 1 , the steering module further:calculating one or more trial steering vectors from the modified steering vector; andcalculating a current steering vector from a first trial steering vector in response to the first trial steering vector correlating with the audio signals.5. The apparatus of claim 1 , wherein the modified prior steering vector MS is calculated as MS=MV*SV0 where MV is the motion vector and SV0 is the prior steering vector.6. The apparatus of claim 1 , the steering module further spatially filtering the audio signals with the modified prior steering vector to generate one or more output signals.7. The apparatus of claim 6 , wherein the output signals OS are calculated as OS=MS*IS claim 6 , where MS is the modified prior steering vector and IS is a vector of the audio signals.8. A method comprising:modifying a prior steering vector with a motion vector; andspatially filtering audio signals using the modified steering vector.9. The method of claim 8 , further comprising generating the motion vector using a motion sensor for a microphone array.10. The method of claim 8 , further comprising:receiving audible signals from a microphone ...

Подробнее
Номер записи: 85
22-03-2018 дата публикации

Method for Determining the Direction of a Source of Waterborne Sound, a Computer Program Product, a Computer or Sonar, and a Watercraft

Номер: US20180081023A1
Автор: LOGES Werner
Принадлежит:

The invention relates to a method for determining the direction of a source of waterborne sound that emits a waterborne acoustic signal, by means of a hydrophone arrangement which forms a linear antenna or a virtual linear antenna, as well as to a computer program product, a computer, a sonar, and a watercraft. 1. A method for determining the direction of a source of waterborne sound that emits a waterborne acoustic signal by means of a hydrophone arrangement which forms a linear antenna or a virtual linear antenna , wherein the method comprises the following steps:{'b': '1', 'determining the waterborne acoustic signal incoming at the hydrophone arrangement at a first measurement time t,'}performing an electronic antenna swing analysis which determines a sum signal S of the linear antenna or of the virtual signal antenna at every rotation angle αn=α0±nΔα, where α0 is the starting angle, Δα is the step-width angle, and n=0, 1, 2, 3, 4 . . . , such that a measurement series S(α) is created,determining a maximum sum signal Smax(αmax), where αmax represents the maximum rotation angle of the measurement series S(α),determining a fit measurement series SFit(α), which includes the maximum sum signal Smax(αmax) and at least two more sum signals S(αn)m, with the sum number m=2, 3, 4 . . . ,determining a mathematical fit function fFit(αFit) for the fit measurement series SFit(α) by means of a mathematical equalization calculation, anddetermining a fit function maximum fFit,Max(αFit,Max) of the mathematical fit function fFit(αFit), wherein the direction of the waterborne sound source can be determined by means of αFit,Max.2234. Method according to claim 1 , wherein the procedure or sub-steps of the procedure can be carried out at a second measurement time t claim 1 , at a third measurement time t claim 1 , at a fourth measurement time t claim 1 , and/or at further times t claim 1 , wherein the corresponding measurement series S(α)t or the determined directions of the ...

Подробнее
Номер записи: 86
18-03-2021 дата публикации

Playback Based on Acoustic Signals

Номер: US20210084431A1
Автор: Reilly Jonathon, Van Erven Niels
Принадлежит:

Example techniques relate to playback based on acoustic signals in a system including a first playback device and a second playback device. A first playback device may detect a first acoustic signal. The first playback device sends, to a network device, data corresponding to the detected first acoustic signal. The network device may generate one or more instructions based on the sent data corresponding to the detected first acoustic signal and send data representing such instructions to the first playback device. Based on the instructions, the first playback device plays back audio content. Further, the second playback device may stop playing back audio content based on further instructions. 2. The system of claim 1 , wherein the first functions further comprise:before detecting the acoustic signal, playing back the first audio content in synchrony with the playback of the first audio content via the second playback device in a group.3. The system of claim 2 , wherein stopping the playback of the first audio content based on the one or more second commands comprises removing the second playback device from the group.4. The system of claim 1 , wherein the first audio content and the second audio content each comprise different respective portions of the same audio content.5. The system of claim 4 , wherein the first functions comprise playing back the first audio content before detecting the acoustic signal claim 4 , and wherein playing back the second audio content based on the one or more first commands comprises resuming playback of the same audio content.6. The system of claim 1 , wherein the second playback device comprises a microphone claim 1 , and wherein the second functions further comprise:while the second playback device is playing back the second audio content, detecting, via the microphone of the second playback device, an additional acoustic signal;sending, to the network device via the second network interface over the digital data network, data ...

Подробнее
Номер записи: 87
24-03-2016 дата публикации

DRONE DETECTION AND CLASSIFICATION METHODS AND APPARATUS

Номер: US20160086621A1
Автор: Franklin John, Hearing Brian
Принадлежит:

A system, method, and apparatus for drone detection and classification are disclosed. An example method includes receiving a sound signal in a microphone and recording, via a sound card, a digital sound sample of the sound signal, the digital sound sample having a predetermined duration. The method also includes processing, via a processor, the digital sound sample into a feature frequency spectrum. The method further includes applying, via the processor, broad spectrum matching to compare the feature frequency spectrum to at least one drone sound signature stored in a database, the at least one drone sound signature corresponding to a flight characteristic of a drone model. The method moreover includes, conditioned on matching the feature frequency spectrum to one of the drone sound signatures, transmitting, via the processor, an alert. 1a microphone configured to receive a sound signal;a sound card configured to record a digital sound sample of the sound signal, the digital sound sample having a predetermined duration; and process the digital sound sample into a feature frequency spectrum,', 'process at least one drone sound sample into a drone sound signature,', 'use broad spectrum matching to compare the feature frequency spectrum to the at least one drone sound signature, the at least one drone sound signature corresponding to a flight characteristic of a drone, and', 'conditioned on matching the feature frequency spectrum to one of the drone sound signatures, transmit an alert., 'a sample processor configured to. An apparatus for detecting drones comprising: The present application is a continuation of, claims priority to and the benefit of U.S. patent application Ser. No. 14/258,304, filed on Apr. 22, 2014, the entirety of which is incorporated herein by reference.Unmanned aerial vehicles (“UAV”) and unmanned aircraft system (“UAS”), otherwise known as drones, were once only thought of as military aircraft. Images from the news media and the government show ...

Подробнее
Номер записи: 88
25-03-2021 дата публикации

SYSTEMS AND METHODS FOR ACQUIRING AND CHARACTERIZING TIME VARYING SIGNALS OF INTEREST

Номер: US20210088684A1
Автор: NYFFENEGGER PAUL ARMIN, Richards Paul Thurston, Tinker Mark Andrew
Принадлежит:

Methods or systems for identifying seismic or acoustic signals of interest originating with moving motorized vehicles or footstep movement or stationary or moving machinery. A related system for monitoring an area includes a plurality of sensing devices each comprising a frame and a piezo-electric sensor element. A monitoring device is coupled to receive information from each of the sensing devices. One method includes providing a processing chain coupled to receive signal data from a sensor device which receives the signals, including a detection stage, a Joint Time Frequency (JTF) domain stage, and a classification stage. The detection stage identifies presence of signals that emerge from the background. The JTF domain stage estimates the state of the signals of interest over time. The classification stage assesses the previously derived information to form a decision about source identity. In one embodiment, the detector stage performs detections on a single cycle basis. 6. A sensing system responsive to acoustic or seismic signals , comprising:a frame; anda piezo-electric sensor element, responsive to a wavefield of seismic or acoustic energy, positioned about the frame, wherein coupling between the piezo-electric sensor element and the frame is so limited as to render direct coupling of the piezo-electric sensor element with signals of the wavefield the predominant means for stimulating the piezo-electric sensor element with seismic energy.7. The system of wherein the element is in the form of a coaxial cable comprising a polymer material having piezo-electric properties positioned between conductors to generate a charge differential measurable as a voltage between the conductors.8. The system of wherein the sensor element is responsive to strain in multiple modes one or more modes taken from the set consisting of d claim 6 , dand d.9. The system of wherein the frame and piezo-electric sensor element form a first sensing device claim 6 , the system further ...

Подробнее
Номер записи: 89
21-03-2019 дата публикации

Underwater acoustic leaky wave antenna

Номер: US20190086536A1
Автор: Charles Alan ROHDE, Christina Jeanne Naify, Jeffrey Rogers, Katherine Woolfe, Matthew David Guild, Theodore P. Martin
Принадлежит: US Department of Navy

A leaky-wave antenna for fluid environments includes a waveguide cavity defined by a waveguide wall. The waveguide cavity is filled with a waveguide fluid. The waveguide walls are made of either an anisotropic material that utilize one of orthotropic stiffness of the anisotropic material to control mode conversion, a band gap material to approximate an acoustically rigid boundary, and a combination of the two materials.

Подробнее
Номер записи: 90
05-05-2022 дата публикации

SIMULTANEOUS ACOUSTIC EVENT DETECTION ACROSS MULTIPLE ASSISTANT DEVICES

Номер: US20220139371A1
Автор: Carbune Victor, Sharifi Matthew
Принадлежит:

Implementations can detect respective audio data that captures an acoustic event at multiple assistant devices in an ecosystem that includes a plurality of assistant devices, process the respective audio data locally at each of the multiple assistant devices to generate respective measures that are associated with the acoustic event using respective event detection models, process the respective measures to determine whether the detected acoustic event is an actual acoustic event, and cause an action associated with the actional acoustic event to be performed in response to determining that the detected acoustic event is the actual acoustic event. In some implementations, the multiple assistant devices that detected the respective audio data are anticipated to detect the respective audio data that captures the actual acoustic event based on a plurality of historical acoustic events being detected at each of the multiple assistant devices.

Подробнее
Номер записи: 91
05-05-2022 дата публикации

Apparatus and method for audio analysis

Номер: US20220141609A1
Автор: Maxime Baelde, Nathan Souviraa-Labastie, Raphael Greff
Принадлежит: Steelseries France

An apparatus comprises a receiver ( 201 ) receiving a multi-channel audio signal representing audio for a scene. An extractor ( 203 ) extracts at least one directional audio component by applying a spatial filtering to the multi-channel signal where the spatial filtering is dependent on the multi-channel audio signal. A feature processor ( 205 ) determines a set of features for the first directional audio component and a categorizer ( 207 ) determines a first audio source category out of a plurality of audio source categories for the directional audio signal in response to the set of features. An assigner ( 209 ) assigns a first audio source property to the first directional audio component from a set of audio source properties for the first audio source category. The apparatus may provide very advantageous categorization and characterization of individual audio sources/components present in a multi-channel signal. This may be advantageous e.g. for visualization of audio events.

Подробнее
Номер записи: 92
19-03-2020 дата публикации

Mobile body detection device, mobile body detection method, and mobile body detection program

Номер: US20200088831A1
Автор: Shoji Yachida
Принадлежит: NEC Corp

A mobile body detection means 85: determines, in the case where a position of a first mobile body and a position of a second mobile body are approximately the same, that a mobile body is detected at the position; and determines, in the case where the position of the first mobile body and the position of the second mobile body are different and any of first reliability and second reliability exceeds a threshold, that a mobile body is detected at a position of a mobile body corresponding to the reliability exceeding the threshold.

Подробнее
Номер записи: 93
19-03-2020 дата публикации

Gunshot Detection System

Номер: US20200088832A1
Автор: Jarrett Brad
Принадлежит:

A gunshot detection system utilizes an ultrasonic transducer for detecting a blast wave resulting from a gunshot. The system may be linked to alert systems configured for notifying emergency response personnel to the occurrence and location of a gunshot, thereby enabling a rapid response to an active shooter situation. 1. A gunshot detection system , comprising:a gunshot detection unit having at least one ultrasonic transducer for detecting a concussion wave, the gunshot detection unit providing at least one of a first indication and a second indication, wherein the first indication corresponds to an absence of a gunshot, and wherein the second indication corresponds to the occurrence of a gunshot.2. The system of claim 1 , wherein the first and second indications are determined by the gunshot detection unit based an output from the at least one ultrasonic transducer.3. The system of claim 1 , wherein the gunshot detection unit comprises more than one ultrasonic transducer.4. The system of claim 3 , wherein each ultrasonic transducer is positioned along the same axis.5. The system of claim 4 , wherein each ultrasonic transducer is angled at about 22 degrees relative to a surface of the gunshot detection unit.6. The system of claim 1 , further comprising a plurality of additional gunshot detection units configured for communicating therebetween.7. The system of claim 1 , further comprising a gateway unit configured for receiving at least one of the first indication and the second indication from the gunshot detection unit.8. The system of claim 7 , wherein at least one of the gunshot detection unit and the gateway unit is configured for transmitting information relating to at least one of the first and second indications to emergency response personnel.9. A method for detecting a gunshot claim 7 , the method comprising;receiving, by a gunshot detection unit having an ultrasonic transducer, an ultrasonic wave;determining, by the gunshot detection unit, whether the ...

Подробнее
Номер записи: 94
01-04-2021 дата публикации

Apparatus, System and Method for Spatially Locating Sound Sources

Номер: US20210096208A1
Автор: Rittenschober Thomas
Принадлежит:

An apparatus comprising at least one first microphone () which is movably arranged, at least one second stationary microphone () and at least one sensor () is described. The microphones can capture the sound waves emitted by acoustic sources, and the sensor can capture spatial coordinates of the first microphone. A corresponding method and a system having the apparatus mentioned are also described. 134-. (canceled)35. An apparatus , comprising:at least one first microphone movably arranged and designed to capture acoustic sources in a measurement scene;a second stationary microphone designed to capture acoustic sources in the measurement scene; andat least one position sensor designed to capture the position of the at least one first microphone.36. The apparatus of claim 35 , wherein the apparatus is mountable so that the apparatus can rotate about a rotation axis claim 35 , and wherein the second stationary microphone is arranged on the rotation axis so that the second stationary microphone does not change its position during the rotation.37. The apparatus of claim 36 , wherein the apparatus has a shape of an aerodynamically shaped blade.38. The apparatus of claim 36 , further comprising:a balancing mass arranged in the apparatus in such a manner that the balancing mass has no imbalance when rotated about the rotation axis.39. The apparatus of claim 35 , further comprising:an electronic unit designed to process sensor signals which are supplied by the at least one first microphone, the second stationary microphone and the at least one position sensor.40. The apparatus of claim 35 , wherein the apparatus comprises a first portion and a second portion claim 35 , wherein the first portion is movably mounted with respect to the first portion claim 35 , and wherein the at least one first microphone is arranged on the first portion and the second stationary microphone is arranged on the second portion.41. A system claim 35 , comprising:a holder;{'claim-ref': {'@idref': ' ...

Подробнее
Номер записи: 95
07-04-2016 дата публикации

OBJECT TRACKING DEVICE AND TRACKING METHOD THEREOF

Номер: US20160100092A1
Автор: BOHAC James Michael
Принадлежит:

An object tracking device and a tracking method thereof are provided. The method, adopted by an object tracking device, includes: detecting, by a first multimedia sensor, an environment to generate a first multimedia sensor output; monitoring, by a processing circuit, the first multimedia sensor output from the first multimedia sensor system; configuring, by the processing circuit, a setting for a second multimedia sensor based on the first multimedia sensor output; and monitoring, by the second multimedia sensor, the environment based on the setting to generate a second multimedia output. 1. A method , adopted by an object tracking device , comprising:detecting, by a first multimedia sensor, an environment to generate a first multimedia sensor output;monitoring, by a processing circuit, the first multimedia sensor output from the first multimedia sensor system;configuring, by the processing circuit, a setting for a second multimedia sensor based on the first multimedia sensor output; andmonitoring, by the second multimedia sensor, the environment based on the setting to generate a second multimedia output.2. The method of claim 1 , wherein the first multimedia sensor is a microphone array claim 1 , and the second multimedia sensor is an image capture device.3. The method of claim 2 , wherein:the step of configuring, by the processing circuit the setting for the second multimedia sensor comprises: determining, by the processing circuit, a location of a dominant speaker based on the an audio array output of the microphone array; and configuring, by the processing circuit, an image zoom and a focus of the image capture device based on the location of the dominant speaker; andthe step of the monitoring, by the second multimedia sensor, the environment based on the setting comprises: tracking, by the image capture device, the dominant speaker according to the configured image zoom and focus.4. The method of claim 1 , wherein the first multimedia sensor is an image ...

Подробнее
Номер записи: 96
07-04-2016 дата публикации

AUDIO IDENTIFICATION DEVICE, AUDIO IDENTIFICATION METHOD AND AUDIO IDENTIFICATION SYSTEM

Номер: US20160100265A1
Автор: Maggiore Frank, Priebe Paul
Принадлежит:

An audio identification device is provided. The audio identification device comprises: at least one sensing device configured to capture an audio signal present in a working space of a processing setup including at least one processing device; and a processor configured to: receive information related to the at least one processing device; retrieve audio data stored in a database using the received information related to the at least one processing device; identify a state of the at least one processing device by analyzing the audio signal captured by the at least one sensing device based on the retrieved audio data; and output a response, the response being determined based on the identified state of the at least one processing device. 1. An audio identification device comprising:at least one sensing device configured to capture an audio signal present in a working space of a processing setup including at least one processing device; and receive information related to the at least one processing device;', 'retrieve audio data stored in a database using the received information related to the at least one processing device;', 'identify a state of the at least one processing device by analyzing the audio signal captured by the at least one sensing device based on the retrieved audio data; and', 'output a response, the response being determined based on the identified state of the at least one processing device., 'a processor configured to2. The audio identification device according to claim 1 , wherein:the received information related to the at least one processing device includes identification information of the at least one processing device; and 'retrieve audio data stored in the database in association with the identification information of the at least one processing device.', 'the processor is further configured to3. The audio identification device according to claim 2 , wherein:the at least one processing device of the processing setup includes an audio ...

Подробнее
Номер записи: 97
12-05-2022 дата публикации

SYSTEM TO DETERMINE DIRECTION TOWARD USER

Номер: US20220146617A1
Автор: Kuruba Buchannagari Shobha Devi, LEE BORHAM, Mansour Mohamed, Nakagawa Carlos Renato
Принадлежит:

A device has a microphone array that acquires sound data and a camera that acquires image data. A portion of the device may be moveable by one or more actuators. Responsive to the user, the portion of the device is moved toward an estimated direction of the user. The estimated direction is based on sensor data including the sound data and the image data. First variance values for individual sound direction values are calculated. Data derived from the image data or data from other sensors may be used to modify the first variance values and determine second data comprising second variances. The second data may be processed to determine the estimated direction of the user. For example, the second data may be processed by both a forward and a backward Kalman filter, and the output combined to determine an estimated direction toward the user. 1. A device comprising:a camera;a microphone array;one or more memories storing first computer-executable instructions; and acquire sound data using the microphone array;', 'determine, based on the sound data, utterance of a wakeword;', a plurality of sound direction values, wherein each sound direction value is an estimated direction of the utterance with respect to the device, and', 'a plurality of first variance values, wherein each first variance value is associated with each of the sound direction values;, 'determine, based on the sound data, first data comprising, 'acquire image data using the camera;', 'determine second data based at least in part on the image data;', the plurality of sound direction values, and', 'a plurality of second variance values that are based on the first variance values as modified based on the second data; and, 'determine third data comprising, 'determine direction data based on the third data; and', 'operate the device based on the direction data., 'one or more processors to execute the first computer-executable instructions to2. The device of claim 1 , the third data comprising one or more of: ...

Подробнее
Номер записи: 98
16-04-2015 дата публикации

WEARABLE COMPUTER

Номер: US20150104038A1
Автор: KIM Sung Un
Принадлежит: HYUNDAI MOTOR COMPANY

A wearable computer is provided. In particular, a communication unit transmits/receives information associated with a vehicle from/to an external control apparatus. A microphone collects sound waves generated from a sound source in the vehicle, and a posture detecting sensor detects a posture of a wearer. A controller then generates augmented reality information by processing internal and/or external information received from the external control apparatus, calculates a location of wearer using sound waves collected from the microphone, and generates augmented reality information according to an alignment of a window of vehicle or devices in the vehicle using the location and the posture of the wearer displays the augmented reality information generated at the controller. 1. A wearable computer comprising:a communication unit configured to transmit and receive information associated with a vehicle to and from an external control apparatus;a microphone configured to collect sound waves generated from at least one sound source in the vehicle;a posture detecting sensor configured to detect a posture of a wearer;a controller configured to generate augmented reality information by processing information received from the external control apparatus, to calculate a location of wearer using sound waves collected by the microphone, and generate augmented reality information according to an alignment of a window of vehicle or devices in the vehicle using the location and the posture of the wearer; anda display unit that displays the augmented reality information generated at the controller.2. The wearable computer of claim 1 ,wherein the controller measures the location of the wearer by synchronizing the sound waves generated at the sound sources through communication with the communication unit.3. The wearable computer of claim 1 ,wherein the external control apparatus modulates the sound waves at a non-audible frequency and transmits modulated sound wave, andthe controller ...

Подробнее
Номер записи: 99
12-05-2022 дата публикации

Electronic apparatus and controlling method thereof

Номер: US20220148575A1
Автор: Dohyeong HWANG, Jongyeong SHIN
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An electronic apparatus and a controlling method thereof are provided. The electronic apparatus includes a communication interface configured to communicate with other electronic apparatuses, a memory configured to store location information of the electronic apparatus and the other electronic apparatuses, a microphone configured to detect sound using a plurality of channels, and a processor configured to, based on a voice recognition function being activated, perform a voice recognition operation regarding a user's uttered voice received through the microphone, based on a trigger voice being identified through the microphone, identify an utterance direction of the trigger voice, control the communication interface to share the identified utterance direction with the other electronic apparatuses, estimate an utterance location based on information regarding the utterance direction received from the other electronic apparatuses and the identified utterance direction, and activate a voice recognition function based on the stored location information and the estimated utterance location.

Подробнее
Номер записи: 100