ON-DEVICE USER PRESENCE DETECTION IN MULTI-PATH PROPAGATION ENVIRONMENTS
One embodiment provides a method comprising acquiring, via one or more microphones of a device in a spatial area, a signal representing at least one echo of an ultrasound emitted via one or more loudspeakers of the device. The method further comprises applying digital signal processing to the signal...
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Format | Patent |
Language | English French |
Published |
06.07.2023
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Abstract | One embodiment provides a method comprising acquiring, via one or more microphones of a device in a spatial area, a signal representing at least one echo of an ultrasound emitted via one or more loudspeakers of the device. The method further comprises applying digital signal processing to the signal to determine a signal-to-noise ratio (SNR) of the signal, and estimating one or more properties of a moving reflector in the spatial area based on the SNR of the signal.
Un mode de réalisation concerne un procédé comprenant l'acquisition, par l'intermédiaire d'un ou de plusieurs microphones d'un dispositif dans une zone spatiale, d'un signal représentant au moins un écho d'un ultrason émis par l'intermédiaire d'un ou de plusieurs haut-parleurs du dispositif. Le procédé comprend en outre l'application d'un traitement de signal numérique au signal pour déterminer un rapport signal sur bruit (SNR) du signal, et l'estimation d'une ou de plusieurs propriétés d'un réflecteur mobile dans la zone spatiale sur la base du SNR du signal. |
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AbstractList | One embodiment provides a method comprising acquiring, via one or more microphones of a device in a spatial area, a signal representing at least one echo of an ultrasound emitted via one or more loudspeakers of the device. The method further comprises applying digital signal processing to the signal to determine a signal-to-noise ratio (SNR) of the signal, and estimating one or more properties of a moving reflector in the spatial area based on the SNR of the signal.
Un mode de réalisation concerne un procédé comprenant l'acquisition, par l'intermédiaire d'un ou de plusieurs microphones d'un dispositif dans une zone spatiale, d'un signal représentant au moins un écho d'un ultrason émis par l'intermédiaire d'un ou de plusieurs haut-parleurs du dispositif. Le procédé comprend en outre l'application d'un traitement de signal numérique au signal pour déterminer un rapport signal sur bruit (SNR) du signal, et l'estimation d'une ou de plusieurs propriétés d'un réflecteur mobile dans la zone spatiale sur la base du SNR du signal. |
Author | ORTEGA PENA, Andres Leonardo De Jesus CHUNG, David Ho Suk CHANDRA, Ashwin |
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DocumentTitleAlternate | DÉTECTION DE PRÉSENCE D'UTILISATEUR SUR DISPOSITIF DANS DES ENVIRONNEMENTS DE PROPAGATION À TRAJETS MULTIPLES |
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RelatedCompanies | SAMSUNG ELECTRONICS CO., LTD |
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Snippet | One embodiment provides a method comprising acquiring, via one or more microphones of a device in a spatial area, a signal representing at least one echo of an... |
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SubjectTerms | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
Title | ON-DEVICE USER PRESENCE DETECTION IN MULTI-PATH PROPAGATION ENVIRONMENTS |
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