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公开(公告)号：US11747192B2
公开(公告)日：2023-09-05
申请号：US17348184
申请日：2021-06-15
发明人： Hyunwook Kang , Cheheung Kim , Daehyuk Son , Hyeokki Hong
CPC分类号： G01H11/00 , G01H1/06 , G01H11/02 , G01S3/802 , H03H9/02 , H03H17/02 , H03H17/0233 , H04R1/20 , H04R1/406 , H04R2410/01 , H04R2430/20
摘要： An acoustic sensor assembly includes a non-directional acoustic sensor having a first directional pattern, a plurality of directional acoustic sensors surrounding the non-directional acoustic sensor and including a plurality of resonators having different resonance frequencies from each other, each of the plurality of directional acoustic sensors having a second directional pattern, and a processor configured to obtain output signals from the non-directional acoustic sensor and the plurality of directional acoustic sensors. The processor is further configured to calculate an acoustic signal having directivity by selecting any one or any combination of the obtained output signals or selectively combining the obtained output signals, and obtain sound around the acoustic sensor assembly, using the calculated acoustic signal.
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公开(公告)号：US20230026881A1
公开(公告)日：2023-01-26
申请号：US17769540
申请日：2020-10-05
申请人： ORANGE
发明人： Jérome Daniel , Srdan Kitic
摘要： Processing sound signals acquired by a microphone, for example an ambisonic type, to locate a sound source in a space including at least one wall. A time-frequency transform is applied to the acquired signals, and, from the acquired signals, a velocity vector, complex with real and imaginary parts, is expressed in the frequency domain, wherein the velocity vector characterizes a composition between: a first acoustic path, direct between the source and the microphone, represented by a first vector; and a second acoustic path resulting from a reflection on the wall and represented by a second vector. The second path has a first delay with respect to the direct path. Depending on the first delay and the first and second vectors, a parameter is determined from among a direction of the direct path, a distance from the source to the microphone, and a distance from the source to said wall.
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公开(公告)号：US11327150B2
公开(公告)日：2022-05-10
申请号：US16545426
申请日：2019-08-20
申请人： Roku, Inc.
摘要： 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.
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公开(公告)号：US11294020B2
公开(公告)日：2022-04-05
申请号：US16298358
申请日：2019-03-11
发明人： Yongming Zhang , Robert Dickey
摘要： A radio receiver is made much more immune to jamming signals. A vector EM sensor, in a 2-dimensional (3-axis sensor) or 3-dimensional (6-axis sensor) sensor configuration, is combined with a unique digital rotation to a preferred direction to create a new reference channel and, using an advanced frequency domain noise mitigation algorithm or other noise cancellation algorithm, can effectively reject jamming and other interference signals and improve the signal-to-noise ratio (20-40 dB) and the receiving performance of the receiver. The method can cancel both near-field and far-field interference and improve accuracy for various applications concerned with establishing the direction, or bearing, to a source. A communication receiver with the vector sensor and the cancellation algorithm has unique anti-jamming capabilities even for multiple jamming sources.
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公开(公告)号：US11182567B2
公开(公告)日：2021-11-23
申请号：US16364811
申请日：2019-03-26
IPC分类号： G06F40/58 , G01S3/802 , G06F40/103 , G10L15/26
摘要： A speech translation apparatus includes: an estimator which estimates a sound source direction, based on an acoustic signal obtained by a microphone array unit; a controller which identifies that an utterer is a user or a conversation partner, based on the sound source direction estimated after the start of translation is instructed by a button, using a positional relationship indicated by a layout information item stored in storage and selected in advance, and determines a translation direction indicating input and output languages in and into which content of the acoustic signal is recognized and translated, respectively; and a translator which obtains, according to the translation direction, original text indicating the content in the input language and translated text indicating the content in the output language. The controller displays the original and translated texts on first and second display areas corresponding to the positions of the user and conversation partner, respectively.
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公开(公告)号：US20210174792A1
公开(公告)日：2021-06-10
申请号：US17183209
申请日：2021-02-23
发明人： Jimeng ZHENG , Ian Ernan LIU , Yi GAO , Weiwei LI
IPC分类号： G10L15/20 , G01S3/802 , G01S3/80 , G10L21/0232 , G10L21/0224 , G10L15/08 , G10L25/51 , G10L15/22
摘要： Embodiments of this application disclose method and apparatus for positioning a target audio signal by an audio interaction device, and an audio interaction device The method includes: obtaining audio signals in a plurality of directions in a space, and performing echo cancellation on the audio signal, the audio signal including a target-audio direct signal; obtaining weights of a plurality of time-frequency points in the audio signals, a weight of each time-frequency point indicating, at the time-frequency point, a relative proportion of the target-audio direct signal in the audio signals; weighting time-frequency components of the audio signal at the plurality of time-frequency points separately for each of the plurality of directions by using the weights of the plurality of time-frequency points, to obtain a weighted audio signal energy distribution; and obtaining a sound source azimuth corresponding to the target-audio direct signal in the audio signals accordingly.
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公开(公告)号：US10996331B2
公开(公告)日：2021-05-04
申请号：US15900253
申请日：2018-02-20
发明人： Daisuke Yamamoto , Takafumi Sonoura
摘要： 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 an object.
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公开(公告)号：US10955516B2
公开(公告)日：2021-03-23
申请号：US16019202
申请日：2018-06-26
申请人： Intel Corporation
发明人： Glen J. Anderson
IPC分类号： G01S3/14 , G01S3/802 , G01S7/48 , G01S17/04 , G01S17/931 , G08G1/16 , G01S13/931
摘要： 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.
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公开(公告)号：US10914810B2
公开(公告)日：2021-02-09
申请号：US15982362
申请日：2018-05-17
申请人： NAVICO HOLDING AS
发明人： Matthew W. Laster , Jeremiah Clark , Lucas Steward
IPC分类号： G01S3/801 , G01S3/802 , G09B29/00 , G06F3/041 , G06F3/0488 , G06F3/0484 , H04N1/00
摘要： An apparatus for providing marine information is provided including a user interface, a processor, and a memory including computer program code. The memory and the computer program code are configured to, with the processor, cause the apparatus to generate a sonar image based on sonar return data received from an underwater environment, determine a location associated with the sonar return data based on location data received from one or more position sensors, and render a nautical chart on a display. The computer program code is further configured to cause the apparatus to receive a user input on the user interface directed to a portion of the display in which the nautical chart is presented, and modify presentation of the nautical chart such that the portion of the display presents the sonar image in response to receiving the user input.
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公开(公告)号：US10670693B2
公开(公告)日：2020-06-02
申请号：US15858700
申请日：2017-12-29
发明人： Wilfred Edwin Booij
摘要： The present disclosure relates to an acoustic position determination system that includes a mobile communication device and at least one base transmitter unit. The mobile communication device is configured to transmit and receive acoustic signals. Due to relative movements between the mobile communication device and the base transmitter unit, frequencies of the received signals shift due to Doppler effect. The mobile communication device is configured to compensate Doppler frequency shifts in the received acoustic signals prior to performing a deconvolution decoding process. The mobile communication device is further configured to compensate Doppler frequency shifts and perform deconvolution decoding process on acoustic signals received from multiple signal transmission paths.
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