Patents by Inventor Alan Seefeldt
Alan Seefeldt 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: 20230040846Abstract: A method for estimating an audio device location in an environment may involve obtaining direction of arrival (DOA) data for each audio device of a plurality of audio devices in the environment and determining interior angles for each of a plurality of triangles based on the DOA data. Each triangle may have vertices that correspond with audio device locations. The method may involve determining a side length for each side of each of the triangles, performing a forward alignment process of aligning each of the plurality of triangles produce a forward alignment matrix and performing a reverse alignment process of aligning each of the plurality of triangles in a reverse sequence to produce a reverse alignment matrix. A final estimate of each audio device location may be based, at least in part, on values of the forward alignment matrix and values of the reverse alignment matrix.Type: ApplicationFiled: December 17, 2020Publication date: February 9, 2023Applicant: Dolby Laboratories Licensing CorporationInventors: Mark R.P. THOMAS, Glenn DICKINS, Alan SEEFELDT
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Patent number: 11425503Abstract: Embodiments are described for a method of simultaneously localizing a set of speakers and microphones, having only the times of arrival between each of the speakers and microphones. An autodiscovery process uses an external input to set: a global translation (3 continuous parameters), a global rotation (3 continuous parameters), and discrete symmetries, i.e., an exchange of any axis pairs and/or reversal of any axis. Different time of arrival acquisition techniques may be used, such as ultrasonic sweeps or generic multitrack audio content. The autodiscovery algorithm is based in minimizing a certain cost function, and the process allows for latencies in the recordings, possibly linked to the latencies in the emission.Type: GrantFiled: August 6, 2020Date of Patent: August 23, 2022Assignees: DOLBY LABORATORIES LICENSING CORPORATION, DOLBY INTERNATIONAL ABInventors: Daniel Arteaga, Giulio Cengarle, David Matthew Fischer, Antonio Mateos Sole, Davide Scaini, Alan Seefeldt
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Patent number: 11277703Abstract: Embodiments are described for rendering spatial audio content through a system that is configured to reflect audio off of one or more surfaces of a listening environment. The system includes an array of audio drivers distributed around a room, wherein at least one driver of the array of drivers is configured to project sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment and a renderer configured to receive and process audio streams and one or more metadata sets that are associated with each of the audio streams and that specify a playback location in the listening environment.Type: GrantFiled: August 11, 2020Date of Patent: March 15, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Brett G. Crockett, Spencer Hooks, Alan Seefeldt, Joshua B. Lando, C. Phillip Brown, Sripal S. Mehta, Stewart Murrie
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Publication number: 20220030373Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.Type: ApplicationFiled: October 12, 2021Publication date: January 27, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Sripal S. Mehta, Brett G. Crockett, Spencer Hooks, Alan Seefeldt, Christophe Chabanne, C. Phillip Brown, Joshua B. Lando, Brad Basler, Stewart Murrie
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Patent number: 11178503Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.Type: GrantFiled: August 24, 2020Date of Patent: November 16, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Sripal S. Mehta, Brett G. Crockett, Spencer Hooks, Alan Seefeldt, Christophe Chabanne, C. Phillip Brown, Joshua B. Lando, Brad Basler, Stewart Murrie
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Patent number: 10959033Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.Type: GrantFiled: July 22, 2019Date of Patent: March 23, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Sripal S Mehta, Brett G Crockett, S. Spencer Hooks, Alan Seefeldt, Christophe Chabanne, C. Phillip Brown, Joshua B Lando, Brad Basler, Stewart Murrie
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Publication number: 20210029482Abstract: Embodiments are described for rendering spatial audio content through a system that is configured to reflect audio off of one or more surfaces of a listening environment. The system includes an array of audio drivers distributed around a room, wherein at least one driver of the array of drivers is configured to project sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment and a renderer configured to receive and process audio streams and one or more metadata sets that are associated with each of the audio streams and that specify a playback location in the listening environment.Type: ApplicationFiled: August 11, 2020Publication date: January 28, 2021Applicant: Dolby Laboratories Licensing CorporationInventors: Brett G. CROCKETT, Spencer HOOKS, Alan SEEFELDT, Joshua B. LANDO, C. Phillip BROWN, Sripal S. MEHTA, Stewart MURRIE
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Publication number: 20200382892Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.Type: ApplicationFiled: August 24, 2020Publication date: December 3, 2020Applicant: Dolby Laboratories Licensing CorporationInventors: Sripal S. Mehta, Brett G. Crockett, Spencer Hooks, Alan Seefeldt, Christophe Chabanne, C. Phillip Brown, Joshua B. Lando, Brad Basler, Stewart Murrie
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Publication number: 20200366994Abstract: Embodiments are described for a method of simultaneously localizing a set of speakers and microphones, having only the times of arrival between each of the speakers and microphones. An autodiscovery process uses an external input to set: a global translation (3 continuous parameters), a global rotation (3 continuous parameters), and discrete symmetries, i.e., an exchange of any axis pairs and/or reversal of any axis. Different time of arrival acquisition techniques may be used, such as ultrasonic sweeps or generic multitrack audio content. The autodiscovery algorithm is based in minimizing a certain cost function, and the process allows for latencies in the recordings, possibly linked to the latencies in the emission.Type: ApplicationFiled: August 6, 2020Publication date: November 19, 2020Applicants: Dolby Laboratories Licensing Corporation, Dolby International ABInventors: Daniel ARTEAGA, Giulio CENGARLE, David Matthew FISCHER, Antonio MATEOS SOLE, Davide SCAINI, Alan SEEFELDT
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Patent number: 10743125Abstract: Embodiments are described for rendering spatial audio content through a system that is configured to reflect audio off of one or more surfaces of a listening environment. The system includes an array of audio drivers distributed around a room, wherein at least one driver of the array of drivers is configured to project sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment and a renderer configured to receive and process audio streams and one or more metadata sets that are associated with each of the audio streams and that specify a playback location in the listening environment.Type: GrantFiled: September 26, 2017Date of Patent: August 11, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Brett G. Crockett, Spencer Hooks, Alan Seefeldt, Joshua B. Lando, C. Phillip Brown, Sripal S. Mehta, Stewart Murrie
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Publication number: 20190349701Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.Type: ApplicationFiled: July 22, 2019Publication date: November 14, 2019Applicant: Dolby Laboratories Licensing CorporationInventors: Sripal S MEHTA, Brett G CROCKETT, Spencer HOOKS, Alan SEEFELDT, Christophe CHABANNE, C. Phillip BROWN, Joshua B LANDO, Brad BASLER, Stewart MURRIE
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Patent number: 10412523Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.Type: GrantFiled: November 17, 2017Date of Patent: September 10, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Sripal S. Mehta, Brett G. Crockett, S. Spencer Hooks, Alan Seefeldt, Christophe Chabanne, C. Phillip Brown, Joshua B. Lando, Brad Basler, Stewart Murrie
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Patent number: 9923536Abstract: Volume leveler controller and controlling method are disclosed. In one embodiment, A volume leveler controller includes an audio content classifier for identifying the content type of an audio signal in real time; and an adjusting unit for adjusting a volume leveler in a continuous manner based on the content type as identified. The adjusting unit may configured to positively correlate the dynamic gain of the volume leveler with informative content types of the audio signal, and negatively correlate the dynamic gain of the volume leveler with interfering content types of the audio signal.Type: GrantFiled: October 4, 2016Date of Patent: March 20, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Jun Wang, Lie Lu, Alan Seefeldt
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Publication number: 20180077511Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.Type: ApplicationFiled: November 17, 2017Publication date: March 15, 2018Applicant: Dolby Laboratories Licensing CorporationInventors: Sripal S. MEHTA, Brett G. CROCKETT, Spencer HOOKS, Alan SEEFELDT, Christophe CHABANNE, C. Phillip BROWN, Joshua B. LANDO, Brad BASLER, Stewart MURRIE
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Publication number: 20180020310Abstract: Embodiments are described for rendering spatial audio content through a system that is configured to reflect audio off of one or more surfaces of a listening environment. The system includes an array of audio drivers distributed around a room, wherein at least one driver of the array of drivers is configured to project sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment and a renderer configured to receive and process audio streams and one or more metadata sets that are associated with each of the audio streams and that specify a playback location in the listening environment.Type: ApplicationFiled: September 26, 2017Publication date: January 18, 2018Applicant: Dolby Laboratories Licensing CorporationInventors: Brett G. CROCKETT, Spencer HOOKS, Alan SEEFELDT, Joshua B. LANDO, C. Phillip BROWN, Sripal S. MEHTA, Stewart MURRIE
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Patent number: 9826328Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.Type: GrantFiled: August 28, 2013Date of Patent: November 21, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Sripal S. Mehta, Brett G. Crockett, Spencer Hooks, Alan Seefeldt, Christophe Chabanne, C. Phillip Brown, Joshua B. Lando, Brad Basler, Stewart Murrie
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Patent number: 9794718Abstract: Embodiments are described for rendering spatial audio content through a system that is configured to reflect audio off of one or more surfaces of a listening environment. The system includes an array of audio drivers distributed around a room, wherein at least one driver of the array of drivers is configured to project sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment and a renderer configured to receive and process audio streams and one or more metadata sets that are associated with each of the audio streams and that specify a playback location in the listening environment.Type: GrantFiled: August 28, 2013Date of Patent: October 17, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Brett G. Crockett, Spencer Hooks, Alan Seefeldt, Joshua B. Lando, C. Phillip Brown, Sripal S. Mehta, Stewart Murrie
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Patent number: 9622014Abstract: Embodiments are described for a method and system of rendering and playing back spatial audio content using a channel-based format. Spatial audio content that is played back through legacy channel-based equipment is transformed into the appropriate channel-based format resulting in the loss of certain positional information within the audio objects and positional metadata comprising the spatial audio content. To retain this information for use in spatial audio equipment even after the audio content is rendered as channel-based audio, certain metadata generated by the spatial audio processor is incorporated into the channel-based data. The channel-based audio can then be sent to a channel-based audio decoder or a spatial audio decoder. The spatial audio decoder processes the metadata to recover at least some positional information that was lost during the down-mix operation by upmixing the channel-based audio content back to the spatial audio content for optimal playback in a spatial audio environment.Type: GrantFiled: June 17, 2013Date of Patent: April 11, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Christophe Chabanne, Brett Crockett, Spencer Hooks, Alan Seefeldt, Nicolas R. Tsingos, Mark Tuffy, Rhonda Wilson
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Patent number: 9621124Abstract: Equalizer controller and controlling method are disclosed. In one embodiment, an equalizer controller includes an audio classifier for identifying the audio type of an audio signal in real time; and an adjusting unit for adjusting an equalizer in a continuous manner based on the confidence value of the audio type as identified.Type: GrantFiled: March 17, 2014Date of Patent: April 11, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Lie Lu, Jun Wang, Alan Seefeldt, Mingqing Hu
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Patent number: D880453Type: GrantFiled: July 25, 2018Date of Patent: April 7, 2020Assignee: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Drew Walcott, Grayson Byrd, Peter Michaelian, Brian Renz, John Stewart, Cody Proksa, Vince Voron, Sripal Mehta, Alan Seefeldt