Patents by Inventor C. Phillip Brown
C. Phillip Brown 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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Patent number: 11269586Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.Type: GrantFiled: November 13, 2020Date of Patent: March 8, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Nicolas R. Tsingos, Rhonda Wilson, Sunil Bharitkar, C. Phillip Brown, Alan J. Seefeldt, Remi Audfray
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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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Publication number: 20210337299Abstract: An audio processing method may involve receiving media input audio data corresponding to a media stream and headphone microphone input audio data, determining a media audio gain for at least one of a plurality of frequency bands of the media input audio data and determining a headphone microphone audio gain for at least one of a plurality of frequency bands of the headphone microphone input audio data. Determining the headphone microphone audio gain may involve determining a feedback risk control value, for at least one of the plurality of frequency bands, corresponding to a risk of headphone feedback between at least one external microphone of a headphone microphone system and at least one headphone speaker and determining a headphone microphone audio gain that will mitigate actual or potential headphone feedback in at least one of the plurality of frequency bands, based at least partly upon the feedback risk control value.Type: ApplicationFiled: September 9, 2019Publication date: October 28, 2021Applicant: Dolby Laboratories Licensing CorporationInventors: Glenn N. DICKINS, Joshua Brandon LANDO, Andy JASPAR, C. Phillip BROWN, Phillip WILLIAMS
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Publication number: 20210297781Abstract: An apparatus and method of rendering audio. A binaural signal is split on an amplitude weighting basis into a front binaural signal and a rear binaural signal, based on perceived position information of the audio. In this manner, the front-back differentiation of the binaural signal is improved.Type: ApplicationFiled: July 23, 2019Publication date: September 23, 2021Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Mark F. DAVIS, Nicolas R. TSINGOS, C. Phillip BROWN
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Patent number: 11064308Abstract: Embodiments are directed to upward-firing speakers that reflect sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The upward firing driver is tilted at an inclination angle of approximately 20 degrees to the horizontal axis of the speaker and separate height and direct terminal connections are provided to interface to an adaptive audio rendering system.Type: GrantFiled: July 28, 2020Date of Patent: July 13, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Brett G. Crockett, Alan J. Seefeldt, C. Phillip Brown
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Publication number: 20210211822Abstract: A system and method of adjusting an audio output in one location so that its propagation into another location is reduced. As a first device in a first location generates sound, a second device in a second location detects the propagated sound. The first device then adjusts its output based on the detected sound.Type: ApplicationFiled: March 23, 2021Publication date: July 8, 2021Applicant: Dolby Laboratories Licensing CorporationInventors: C. Phillip Brown, Michael Smithers, Remi Audfray, Patrick Saunders
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Publication number: 20210204054Abstract: A method of calibrating a feedback-based noise cancellation system of an ear device may involve obtaining a measured plant response of the ear device, obtaining a reference plant response value and determining a plant response variation between the reference plant response value and a value corresponding to the measured plant response. The method may involve obtaining a measured a coupler response of the ear device, obtaining a reference coupler response value and determining a coupler response variation between the reference coupler response value and a value corresponding to the measured coupler response. The method may involve determining, based at least in part on the plant response variation and the coupler response variation, a microphone signal gain correction factor and applying the microphone signal gain correction factor to ear device microphone signals that are input to a feedback loop of the feedback-based noise cancellation system.Type: ApplicationFiled: July 29, 2019Publication date: July 1, 2021Applicant: Dolby Laboratories Licensing CorporationInventors: Matthew Conrad FELLERS, Louis D. FIELDER, Douglas Walter HANSEN, Joshua B. LANDO, C. Phillip BROWN, Rhonda J. WILSON
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Publication number: 20210165629Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.Type: ApplicationFiled: February 16, 2021Publication date: June 3, 2021Inventors: Mark Alexander, Chunjian Li, Joshua Brandon Lando, Alan J. Seefeldt, C. Phillip Brown, Dirk Jeroen Breebaart
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Publication number: 20210168553Abstract: A system and method of modifying a binaural signal using headtracking information. The system calculates a delay, a first filter response, and a second filter response, and applies these to the left and right components of the binaural signal according to the headtracking information. The system may also apply headtracking to parametric binaural signals. In this manner, headtracking may be applied to pre-rendered binaural audio.Type: ApplicationFiled: February 4, 2021Publication date: June 3, 2021Inventors: C. Phillip Brown, Joshua Brandon Lando, Mark F. Davis, Alan J. Seefeldt, David Matthew Cooper, Dirk Jeroen Breebaart, Rhonda Wilson
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Patent number: 11016721Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.Type: GrantFiled: June 14, 2017Date of Patent: May 25, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Mark Alexander, Chunjian Li, Joshua Brandon Lando, Alan J. Seefeldt, C. Phillip Brown, Dirk Jeroen Breebaart
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Publication number: 20210132894Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.Type: ApplicationFiled: November 13, 2020Publication date: May 6, 2021Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Nicolas R. TSINGOS, Rhonda WILSON, Sunil BHARITKAR, C. Phillip BROWN, Alan J. SEEFELDT, Remi AUDFRAY
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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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Patent number: 10959034Abstract: A system and method of adjusting an audio output in one location so that its propagation into another location is reduced. As a first device in a first location generates sound, a second device in a second location detects the propagated sound. The first device then adjusts its output based on the detected sound.Type: GrantFiled: January 8, 2019Date of Patent: March 23, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: C. Phillip Brown, Michael J. Smithers, Remi S. Audfray, Patrick David Saunders
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Patent number: 10932082Abstract: A system and method of modifying a binaural signal using headtracking information. The system calculates a delay, a first filter response, and a second filter response, and applies these to the left and right components of the binaural signal according to the headtracking information. The system may also apply headtracking to parametric binaural signals. In this manner, headtracking may be applied to pre-rendered binaural audio.Type: GrantFiled: June 20, 2017Date of Patent: February 23, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: C. Phillip Brown, Joshua Brandon Lando, Mark F. Davis, Alan J. Seefeldt, David Matthew Cooper, Dirk Jeroen Breebaart, Rhonda Wilson
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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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Patent number: 10880636Abstract: Embodiments are directed to an upward-firing speaker that reflects sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. The speaker comprises a direct-firing tweeter and an upward-firing full-range driver in a unitary enclosure for playback of front-channel and height-channel signals, respectively. A crossover passes high frequencies of a front-channel signal directly to the tweeter and combines low frequencies of the front-channel signal with the height channel signal to be played through the full-range driver. A virtual height filter is applied to the height channel signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound.Type: GrantFiled: December 15, 2017Date of Patent: December 29, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: C. Phillip Brown, Michael J. Smithers
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Publication number: 20200396559Abstract: Embodiments are directed to upward-firing speakers that reflect sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The upward firing driver is tilted at an inclination angle of approximately 20 degrees to the horizontal axis of the speaker and separate height and direct terminal connections are provided to interface to an adaptive audio rendering system.Type: ApplicationFiled: July 28, 2020Publication date: December 17, 2020Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Brett G. CROCKETT, Alan J. SEEFELDT, C. Phillip BROWN
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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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Patent number: 10838684Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.Type: GrantFiled: November 4, 2019Date of Patent: November 17, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Nicolas R. Tsingos, Rhonda Wilson, Sunil Bharitkar, C. Phillip Brown, Alan J. Seefeldt, Remi Audfray