Patents by Inventor Khoa-Van Nguyen
Khoa-Van Nguyen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230216965Abstract: Described is a method of hosting a teleconference among a plurality of client devices arranged in two or more acoustic spaces, each client device having an audio capturing capability and/or an audio rendering capability, the method comprising: grouping the plurality of client devices into two or more groups based on their belonging to respective acoustic spaces, receiving first audio streams from the plurality of client devices, generating second audio streams from the first audio streams for rendering by respective client devices among the plurality of client devices, based on the grouping of the plurality of client devices into the two or more groups, and outputting the generated second audio streams to respective client devices. Further described are corresponding computation devise, computer programs, and computer-readable storage media.Type: ApplicationFiled: December 22, 2022Publication date: July 6, 2023Inventors: Khoa-Van NGUYEN, Stephane GIRAUDIE, Benoit SENARD
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Patent number: 11539844Abstract: Described is a method of hosting a teleconference among a plurality of client devices arranged in two or more acoustic spaces, each client device having an audio capturing capability and/or an audio rendering capability, the method comprising: grouping the plurality of client devices into two or more groups based on their belonging to respective acoustic spaces, receiving first audio streams from the plurality of client devices, generating second audio streams from the first audio streams for rendering by respective client devices among the plurality of client devices, based on the grouping of the plurality of client devices into the two or more groups, and outputting the generated second audio streams to respective client devices. Further described are corresponding computation devise, computer programs, and computer-readable storage media.Type: GrantFiled: September 18, 2019Date of Patent: December 27, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Khoa-Van Nguyen, Stephane Giraudie, Benoit Senard
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Publication number: 20220191639Abstract: Described is a method performed by a computation device for generating a binaural audio stream, comprising: receiving an audio stream for a sound source; determining a measure of processing capability of the computation device; selecting, based on the determined measure, a filtering mode from among a predefined set of filtering modes for use in an audio filtering process intended to convert the audio stream into a binaural audio stream; determining, based on a relative position of the virtual source location to a virtual listener location in a virtual listening environment, filter parameters for a set of filters specified by the selected filtering mode; generating the binaural audio stream by applying the audio filtering process to the audio stream, using the set of filters specified by the selected filtering mode; and outputting the binaural audio stream for playback. Further described are corresponding computation devices, computer programs, and computer-readable storage media.Type: ApplicationFiled: March 7, 2022Publication date: June 16, 2022Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Khoa-Van NGUYEN, Stephane GIRAUDIE, Benoit SENARD
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Patent number: 11272310Abstract: Described is a method performed by a computation device for generating a binaural audio stream, comprising: receiving an audio stream for a sound source; determining a measure of processing capability of the computation device; selecting, based on the determined measure, a filtering mode from among a predefined set of filtering modes for use in an audio filtering process intended to convert the audio stream into a binaural audio stream; determining, based on a relative position of the virtual source location to a virtual listener location in a virtual listening environment, filter parameters for a set of filters specified by the selected filtering mode; generating the binaural audio stream by applying the audio filtering process to the audio stream, using the set of filters specified by the selected filtering mode; and outputting the binaural audio stream for playback. Further described are corresponding computation devices, computer programs, and computer-readable storage media.Type: GrantFiled: August 29, 2019Date of Patent: March 8, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Khoa-Van Nguyen, Stephane Giraudie, Benoit Senard
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Publication number: 20210334888Abstract: A method provides a user interface for selecting cabinets. The method displays a web-browser user interface with an interactive 3D model. The 3D model includes a plurality of different cabinet types. Each of the plurality of different cabinet types is selectable by the user from the interactive 3D model. The user makes the selection by selecting the graphical representation of the cabinet type from the interactive 3D model. The method displays available cabinet options along with the interactive 3D model in the web-browser user interface. The available cabinet options are associated with the selection of the cabinet type. The method also receives a selection, in the web-browser user interface, of one of the available cabinet options to add to a shopping cart. The selection defines a selected cabinet. The method displays the shopping cart along with the interactive 3D model in the web-browser user interface. The shopping cart includes the selected cabinet.Type: ApplicationFiled: December 28, 2020Publication date: October 28, 2021Inventors: Andre Mai, Khoa Van Nguyen, Vien Hoang Nguyen
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Publication number: 20200099792Abstract: Described is a method of hosting a teleconference among a plurality of client devices arranged in two or more acoustic spaces, each client device having an audio capturing capability and/or an audio rendering capability, the method comprising: grouping the plurality of client devices into two or more groups based on their belonging to respective acoustic spaces, receiving first audio streams from the plurality of client devices, generating second audio streams from the first audio streams for rendering by respective client devices among the plurality of client devices, based on the grouping of the plurality of client devices into the two or more groups, and outputting the generated second audio streams to respective client devices. Further described are corresponding computation devise, computer programs, and computer-readable storage media.Type: ApplicationFiled: September 18, 2019Publication date: March 26, 2020Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Khoa-Van NGUYEN, Stephane GIRAUDIE, Benoit SENARD
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Publication number: 20200077222Abstract: Described is a method performed by a computation device for generating a binaural audio stream, comprising: receiving an audio stream for a sound source; determining a measure of processing capability of the computation device; selecting, based on the determined measure, a filtering mode from among a predefined set of filtering modes for use in an audio filtering process intended to convert the audio stream into a binaural audio stream; determining, based on a relative position of the virtual source location to a virtual listener location in a virtual listening environment, filter parameters for a set of filters specified by the selected filtering mode; generating the binaural audio stream by applying the audio filtering process to the audio stream, using the set of filters specified by the selected filtering mode; and outputting the binaural audio stream for playback. Further described are corresponding computation devices, computer programs, and computer-readable storage media.Type: ApplicationFiled: August 29, 2019Publication date: March 5, 2020Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Khoa-Van NGUYEN, Stephane GIRAUDIE, Benoit SENARD
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Patent number: 9549277Abstract: A method for optimizing the design and sound field control of a compact loud-speaker array, which includes a plurality of loudspeakers located on a closed loudspeaker surface and the control of the emitted sound field by the loudspeakers within a limited reproduction subspace, having the steps of capturing the sound field using a plurality of microphones and adjusting filter coefficients that modify the alimentation signals of the loudspeakers to minimize the difference between reproduced signals captured by the microphones and target signals describing a target sound field. A conical reproduction surface encloses a reproduction subspace is defined such that the apex of the conical reproduction surface is within the closed loudspeaker surface. Loud-speakers are positioned on a limited loudspeaker surface and the closed loudspeaker surface.Type: GrantFiled: April 25, 2012Date of Patent: January 17, 2017Assignee: SoniceMotion AGInventors: Etienne Corteel, Matthias Rosenthal, Khoa-Van Nguyen
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Patent number: 9426597Abstract: The method of playing back a multichannel audio signal via a playback device comprises a plurality of loudspeakers arranged at fixed locations of the device and define a spatial window for sound playback relative to a reference spatial position. The method comprises for at least one sound object extracted from the signal, estimating a diffuse or localized nature of the object and estimating its position relative to the window. The audio signal is played back via the loudspeakers of the device during which playback treatment is applied to each sound object for playing back via at least one loudspeaker of the device, which treatment depends on the diffuse or localized nature of the object and on its position relative to the window, and includes creating at least one virtual source outside the window from loudspeakers of the device when the object is estimated as being diffuse or positioned outside the window.Type: GrantFiled: September 25, 2013Date of Patent: August 23, 2016Assignee: SONIC EMOTION LABSInventors: Khoa-Van Nguyen, Etienne Corteel
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Publication number: 20150256958Abstract: The method of playing back a multichannel audio signal via a playback device comprises a plurality of loudspeakers arranged at fixed locations of the device and define a spatial window for sound playback relative to a reference spatial position. The method comprises for at least one sound object extracted from the signal, estimating a diffuse or localized nature of the object and estimating its position relative to the window. The audio signal is played back via the loudspeakers of the device during which playback treatment is applied to each sound object for playing back via at least one loudspeaker of the device, which treatment depends on the diffuse or localized nature of the object and on its position relative to the window, and includes creating at least one virtual source outside the window from loudspeakers of the device when the object is estimated as being diffuse or positioned outside the window.Type: ApplicationFiled: September 25, 2013Publication date: September 10, 2015Inventors: Khoa-Van Nguyen, Etienne Corteel
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Publication number: 20150131824Abstract: A method for spatial sound reproduction from a first audio input signal includes using a plurality of loudspeakers using a plurality of virtual loudspeakers over which the first audio input signal is panned for forming second audio input signals using source positioning data and virtual loudspeakers positioning data. The virtual loudspeakers are synthesized by modifying second audio input signals forming third audio input signals using virtual loudspeaker spatial filter coefficients that align the loudspeakers.Type: ApplicationFiled: March 25, 2013Publication date: May 14, 2015Applicant: SONICEMOTION AGInventors: Khoa-Van Nguyen, Etienne Corteel
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Publication number: 20140098966Abstract: A method for optimizing the design and sound field control of a compact loud-speaker array, which includes a plurality of loudspeakers located on a closed loudspeaker surface and the control of the emitted sound field by the loudspeakers within a limited reproduction subspace, having the steps of capturing the sound field using a plurality of microphones and adjusting filter coefficients that modify the alimentation signals of the loudspeakers to minimize the difference between reproduced signals captured by the microphones and target signals describing a target sound field. A conical reproduction surface encloses a reproduction subspace is defined such that the apex of the conical reproduction surface is within the closed loudspeaker surface. Loud-speakers are positioned on a limited loudspeaker surface and the closed loudspeaker surface.Type: ApplicationFiled: April 25, 2012Publication date: April 10, 2014Inventors: Etienne Corteel, Matthias Rosenthal, Khoa-Van Nguyen