Patents by Inventor Mathieu Parvaix
Mathieu Parvaix 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: 20230403524Abstract: Examples of the disclosure describe systems and methods for estimating acoustic properties of an environment. In an example method, a first audio signal is received via a microphone of a wearable head device. An envelope of the first audio signal is determined, and a first reverberation time is estimated based on the envelope of the first audio signal. A difference between the first reverberation time and a second reverberation time is determined. A change in the environment is determined based on the difference between the first reverberation time and the second reverberation time. A second audio signal is presented via a speaker of a wearable head device, wherein the second audio signal is based on the second reverberation time.Type: ApplicationFiled: August 24, 2023Publication date: December 14, 2023Inventors: Mathieu PARVAIX, Jean-Marc JOT, Colby Nelson LEIDER
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Patent number: 11778398Abstract: Examples of the disclosure describe systems and methods for estimating acoustic properties of an environment. In an example method, a first audio signal is received via a microphone of a wearable head device. An envelope of the first audio signal is determined, and a first reverberation time is estimated based on the envelope of the first audio signal. A difference between the first reverberation time and a second reverberation time is determined. A change in the environment is determined based on the difference between the first reverberation time and the second reverberation time. A second audio signal is presented via a speaker of a wearable head device, wherein the second audio signal is based on the second reverberation time.Type: GrantFiled: November 22, 2022Date of Patent: October 3, 2023Assignee: Magic Leap, Inc.Inventors: Mathieu Parvaix, Jean-Marc Jot, Colby Nelson Leider
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Publication number: 20230077524Abstract: Examples of the disclosure describe systems and methods for estimating acoustic properties of an environment. In an example method, a first audio signal is received via a microphone of a wearable head device. An envelope of the first audio signal is determined, and a first reverberation time is estimated based on the envelope of the first audio signal. A difference between the first reverberation time and a second reverberation time is determined. A change in the environment is determined based on the difference between the first reverberation time and the second reverberation time. A second audio signal is presented via a speaker of a wearable head device, wherein the second audio signal is based on the second reverberation time.Type: ApplicationFiled: November 22, 2022Publication date: March 16, 2023Inventors: Mathieu PARVAIX, Jean-Marc JOT, Colby Nelson LEIDER
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Patent number: 11540072Abstract: Examples of the disclosure describe systems and methods for estimating acoustic properties of an environment. In an example method, a first audio signal is received via a microphone of a wearable head device. An envelope of the first audio signal is determined, and a first reverberation time is estimated based on the envelope of the first audio signal. A difference between the first reverberation time and a second reverberation time is determined. A change in the environment is determined based on the difference between the first reverberation time and the second reverberation time. A second audio signal is presented via a speaker of a wearable head device, wherein the second audio signal is based on the second reverberation time.Type: GrantFiled: March 3, 2022Date of Patent: December 27, 2022Assignee: Magic Leap, Inc.Inventors: Mathieu Parvaix, Jean-Marc Jot, Colby Nelson Leider
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Publication number: 20220272469Abstract: Examples of the disclosure describe systems and methods for estimating acoustic properties of an environment. In an example method, a first audio signal is received via a microphone of a wearable head device. An envelope of the first audio signal is determined, and a first reverberation time is estimated based on the envelope of the first audio signal. A difference between the first reverberation time and a second reverberation time is determined. A change in the environment is determined based on the difference between the first reverberation time and the second reverberation time. A second audio signal is presented via a speaker of a wearable head device, wherein the second audio signal is based on the second reverberation time.Type: ApplicationFiled: March 3, 2022Publication date: August 25, 2022Inventors: Mathieu PARVAIX, Jean-Marc JOT, Colby Nelson LEIDER
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Patent number: 11304017Abstract: Examples of the disclosure describe systems and methods for estimating acoustic properties of an environment. In an example method, a first audio signal is received via a microphone of a wearable head device. An envelope of the first audio signal is determined, and a first reverberation time is estimated based on the envelope of the first audio signal. A difference between the first reverberation time and a second reverberation time is determined. A change in the environment is determined based on the difference between the first reverberation time and the second reverberation time. A second audio signal is presented via a speaker of a wearable head device, wherein the second audio signal is based on the second reverberation time.Type: GrantFiled: October 23, 2020Date of Patent: April 12, 2022Assignee: Magic Leap, Inc.Inventors: Mathieu Parvaix, Jean-Marc Jot, Colby Nelson Leider
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Publication number: 20210127220Abstract: Examples of the disclosure describe systems and methods for estimating acoustic properties of an environment. In an example method, a first audio signal is received via a microphone of a wearable head device. An envelope of the first audio signal is determined, and a first reverberation time is estimated based on the envelope of the first audio signal. A difference between the first reverberation time and a second reverberation time is determined. A change in the environment is determined based on the difference between the first reverberation time and the second reverberation time. A second audio signal is presented via a speaker of a wearable head device, wherein the second audio signal is based on the second reverberation time.Type: ApplicationFiled: October 23, 2020Publication date: April 29, 2021Inventors: Mathieu PARVAIX, Jean-Marc JOT, Colby Nelson LEIDER
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Publication number: 20190222691Abstract: The present embodiments are directed to removing echo from an audio signal using a two-stage process. The first stage aims at removing the linear portion of the echo signal that is representative of the acoustic propagation path between a loudspeaker and a microphone, for example. The second stage focuses on removing or suppressing any remaining or residual echo in the audio signal. The residual echo can include both residual linear echo and nonlinear contributions from the system, such as nonlinear echo produced by loudspeakers, amplifiers, microphones or even the body of the device itself. According to certain additional aspects, the echo cancellation and suppression techniques of the embodiments are built on a data-driven approach, where models are trained in both an offline and online process to assist in the detection and suppression of various forms of echo that can exist in a particular near-end environment.Type: ApplicationFiled: January 17, 2019Publication date: July 18, 2019Applicant: Knowles Electronics, LLCInventors: Pratik Shah, Mathieu Parvaix, John Woodruff, Harsha Rao
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Publication number: 20190206417Abstract: A method for separating audio signals based on categories is disclosed herein. The method includes receiving an audio signal; generating a plurality of filters based on the audio signal, each of the filters corresponding to one of a plurality of sound content categories; and separating the audio signal into a plurality of content-based audio signals by applying the filters to the audio signal, each of the content-based audio signals contains a content of a corresponding sound content category among the plurality of sound content categories.Type: ApplicationFiled: December 27, 2018Publication date: July 4, 2019Applicant: Knowles Electronics, LLCInventors: John Woodruff, Mathieu Parvaix, Pratik Shah
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Publication number: 20120203362Abstract: The invention relates to a method of formation of one or more mixed signals (Sout) on the basis of at least two digital source signals (S1, S2), in particular audio signals, in which the mixed signal or signals (Sout) are formed by mixing the source signals (S1, S2). In particular, a quantity characteristic of a source signal or of the mixing is determined and the value (W1, W2) of the said characteristic quantity is watermarked on at least one of the signals (S1, S2, Sout). The invention also relates to a method of separation intended to separate, at least partially, at least one digital source signal contained in one or more mixed signals comprising a watermarked value of a quantity characteristic of a source signal or of the mixing.Type: ApplicationFiled: March 30, 2010Publication date: August 9, 2012Applicants: Universite Bordeaux 1, Institut Polytechnique de GrenobleInventors: Mathieu Parvaix, Laurent Girin, Jean-Marc Brossier, Sylvain Marchand