Patents by Inventor Nikunj Raghuvanshi
Nikunj Raghuvanshi 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: 11877143Abstract: The description relates to representing acoustic characteristics of real or virtual scenes. One method includes generating directional impulse responses for a scene. The directional impulse responses can correspond to sound departing from multiple sound source locations and arriving at multiple listener locations in the scene. The method can include processing the directional impulse responses to obtain coherent sound signals and incoherent sound signals. The method can also include encoding first perceptual acoustic parameters from the coherent sound signals and second perceptual acoustic parameters from the incoherent sound signals, and outputting the encoded first perceptual acoustic parameters and the encoded second perceptual acoustic parameters.Type: GrantFiled: December 30, 2021Date of Patent: January 16, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Nikunj Raghuvanshi, Andrew Stewart Allen, John Michael Snyder
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Publication number: 20230280902Abstract: This document relates to the compressing and/or decompressing of spatial data. A block of spatial data can be compressed by iteratively performing compression iterations on portions of the block and splitting the portions into further portions until compression is completed. The compressed data can include first encoded values indicating whether matches were obtained for comparisons to test values during the compression iterations. The compressed data can also include second encoded values reflecting results of one or more modifications performed on the test values during the compression iterations.Type: ApplicationFiled: May 4, 2022Publication date: September 7, 2023Applicant: Microsoft Technology Licensing, LLCInventors: John Michael Snyder, Nikunj Raghuvanshi, Michael G. Chemistruck
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Publication number: 20230179945Abstract: The description relates to representing acoustic characteristics of real or virtual scenes. One method includes generating directional impulse responses for a scene. The directional impulse responses can correspond to sound departing from multiple sound source locations and arriving at multiple listener locations in the scene. The method can include processing the directional impulse responses to obtain coherent sound signals and incoherent sound signals. The method can also include encoding first perceptual acoustic parameters from the coherent sound signals and second perceptual acoustic parameters from the incoherent sound signals, and outputting the encoded first perceptual acoustic parameters and the encoded second perceptual acoustic parameters.Type: ApplicationFiled: December 30, 2021Publication date: June 8, 2023Applicant: Microsoft Technology Licensing, LLCInventors: Nikunj RAGHUVANSHI, Andrew Stewart ALLEN, John Michael SNYDER
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Patent number: 11606662Abstract: The description relates to modeling acoustic effects in scenes with dynamic portals. One implementation includes obtaining a representation of a scene having a plurality of portals and simulating sound travel in the scene using a plurality of probes deployed in the scene. The implementation also includes determining acoustic parameters for initial sound traveling between respective probes based at least on the simulating. The implementation also includes identifying one or more intercepted portals in the scene that are intercepted by a particular initial sound path from a particular source location to a particular listener location, using particular acoustic parameters for the particular source location and the particular listener location.Type: GrantFiled: May 4, 2021Date of Patent: March 14, 2023Assignee: Microsoft Technology Licensing, LLCInventor: Nikunj Raghuvanshi
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Patent number: 11595773Abstract: The description relates to rendering directional sound. One implementation includes receiving directional impulse responses corresponding to a scene. The directional impulse responses can correspond to multiple sound source locations and a listener location in the scene. The implementation can also include encoding the directional impulse responses to obtain encoded departure direction parameters for individual sound source locations. The implementation can also include outputting the encoded departure direction parameters, the encoded departure direction parameters providing sound departure directions from the individual sound source locations for rendering of sound.Type: GrantFiled: April 21, 2021Date of Patent: February 28, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Nikunj Raghuvanshi, Keith William Godin, John Michael Snyder, Chakravarty Reddy Alla Chaitanya
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Publication number: 20220412923Abstract: Methods, systems, and computer storage media for providing an indication of an integrity of an object based on a non-invasive assessment of the integrity of the object using acoustic signature management engine in object integrity sensing system. In operation, an aggregate object-intermediate-medium sound of an object in an intermediate medium is detected (e.g., via sensors). An acoustic signature of the aggregate object-intermediate-medium sound is generated as a processed acoustic channel associated with statistical measurements. A reference acoustic signature of the object and intermediate medium is accessed. The reference acoustic signature is associated with an acoustic signature computation model, that generates reference acoustic signatures based on a mean and standard deviation measurements of input signals transmitted through the object and intermediate medium.Type: ApplicationFiled: June 29, 2021Publication date: December 29, 2022Inventors: Deepak VASISHT, Ranveer CHANDRA, Manikanta KOTARU, Nissanka Arachchige Bodhi PRIYANTHA, Akshay Sanjay GADRE, Nikunj RAGHUVANSHI
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Publication number: 20220377485Abstract: The description relates to modeling acoustic effects in scenes with dynamic portals. One implementation includes obtaining a representation of a scene having a plurality of portals and simulating sound travel in the scene using a plurality of probes deployed in the scene. The implementation also includes determining acoustic parameters for initial sound traveling between respective probes based at least on the simulating. The implementation also includes identifying one or more intercepted portals in the scene that are intercepted by a particular initial sound path from a particular source location to a particular listener location, using particular acoustic parameters for the particular source location and the particular listener location.Type: ApplicationFiled: May 4, 2021Publication date: November 24, 2022Applicant: Microsoft Technology Licensing, LLCInventor: Nikunj Raghuvanshi
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Patent number: 11412340Abstract: The description relates to rendering directional sound. One implementation includes receiving directional impulse responses corresponding to a scene. The directional impulse responses can correspond to multiple sound source locations and a listener location in the scene. The implementation can also include encoding the directional impulse responses to obtain encoded departure direction parameters for individual sound source locations. The implementation can also include outputting the encoded departure direction parameters, the encoded departure direction parameters providing sound departure directions from the individual sound source locations for rendering of sound.Type: GrantFiled: January 19, 2021Date of Patent: August 9, 2022Assignee: Microsoft TEchnology Licensing, LLCInventors: Nikunj Raghuvanshi, Keith William Godin, John Michael Snyder, Chakravarty Reddy Alla Chaitanya
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Patent number: 11285393Abstract: Examples are disclosed that relate to determining acoustic properties of audio sources in virtual environments. One example provides a method comprising receiving a query on behalf of a non-player entity regarding an audio source, the query including a position of the non-player entity, and based at least on the position of the non-player entity, determining one or more acoustic properties of sound emitted by the audio source at the position of the non-player entity by accessing a position-indexed data structure comprising one or more values for one or more audio cues, each value influencing a corresponding acoustic property of sound emitted by the audio source at a corresponding position. The method further comprises providing the one or more determined acoustic properties to the application, where the application is configured to control behavior of the non-player entity based at least on the one or more determined acoustic properties.Type: GrantFiled: April 7, 2021Date of Patent: March 29, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Michael George Chemistruck, Nikunj Raghuvanshi, Kyle Robert Storck, Noel Richard Cross
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Publication number: 20210266693Abstract: The description relates to rendering directional sound. One implementation includes receiving directional impulse responses corresponding to a scene. The directional impulse responses can correspond to multiple sound source locations and a listener location in the scene. The implementation can also include encoding the directional impulse responses to obtain encoded departure direction parameters for individual sound source locations. The implementation can also include outputting the encoded departure direction parameters, the encoded departure direction parameters providing sound departure directions from the individual sound source locations for rendering of sound.Type: ApplicationFiled: April 21, 2021Publication date: August 26, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Nikunj RAGHUVANSHI, Keith William GODIN, John Michael SNYDER, Chakravarty Reddy ALLA CHAITANYA
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Publication number: 20210235214Abstract: The description relates to rendering directional sound. One implementation includes receiving directional impulse responses corresponding to a scene. The directional impulse responses can correspond to multiple sound source locations and a listener location in the scene. The implementation can also include encoding the directional impulse responses to obtain encoded departure direction parameters for individual sound source locations. The implementation can also include outputting the encoded departure direction parameters, the encoded departure direction parameters providing sound departure directions from the individual sound source locations for rendering of sound.Type: ApplicationFiled: January 19, 2021Publication date: July 29, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Nikunj RAGHUVANSHI, Keith William GODIN, John Michael SNYDER, Chakravarty Reddy ALLA CHAITANYA
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Patent number: 11012802Abstract: A computing system that facilitates decoding a spherical harmonics (SH) representation of a three-dimensional sound signal to a binaural sound signal is described herein. The computing system generates a binaural sound signal based upon the SH representation, a tapering window function that is selected based on an SH encoding order of the SH representation, and a coloration compensation filter that incorporates the tapering window function. The computing system causes the binaural sound signal to be played over at least two speakers.Type: GrantFiled: July 2, 2019Date of Patent: May 18, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Christoph Felix Hold, Hannes Gamper, Ville Topias Pulkki, Nikunj Raghuvanshi, Ivan Jelev Tashev
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Publication number: 20210058730Abstract: The description relates to rendering directional sound. One implementation includes receiving directional impulse responses corresponding to a scene. The directional impulse responses can correspond to multiple sound source locations and a listener location in the scene. The implementation can also include encoding the directional impulse responses to obtain encoded departure direction parameters for individual sound source locations. The implementation can also include outputting the encoded departure direction parameters, the encoded departure direction parameters providing sound departure directions from the individual sound source locations for rendering of sound.Type: ApplicationFiled: August 22, 2019Publication date: February 25, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Nikunj RAGHUVANSHI, Keith William GODIN, John Michael SNYDER, Chakravarty Reddy ALLA CHAITANYA
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Patent number: 10932081Abstract: The description relates to rendering directional sound. One implementation includes receiving directional impulse responses corresponding to a scene. The directional impulse responses can correspond to multiple sound source locations and a listener location in the scene. The implementation can also include encoding the directional impulse responses to obtain encoded departure direction parameters for individual sound source locations. The implementation can also include outputting the encoded departure direction parameters, the encoded departure direction parameters providing sound departure directions from the individual sound source locations for rendering of sound.Type: GrantFiled: August 22, 2019Date of Patent: February 23, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Nikunj Raghuvanshi, Keith William Godin, John Michael Snyder, Chakravarty Reddy Alla Chaitanya
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Patent number: 10911885Abstract: A mobile device implemented method provides audio from a virtual audio source in an augmented reality view of a scene. The method includes operations of sending scene identification data to a server storing precomputed acoustic parameters for multiple scenes, receiving precomputed acoustic parameters corresponding to the scene, aligning the view to register the audio to the augmented reality view of the scene, and rendering and playing the audio using the obtained acoustic parameters.Type: GrantFiled: February 3, 2020Date of Patent: February 2, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Michael George Chemistruck, Nikunj Raghuvanshi, Kyle Robert Storck, Noel Richard Cross, Hakon Strande, Travis Joseph Fodor, Keith William Godin, Ashutosh Vidyadhar Tatake, Jonathan G Paulovich
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Publication number: 20210006923Abstract: A computing system that facilitates decoding a spherical harmonics (SH) representation of a three-dimensional sound signal to a binaural sound signal is described herein. The computing system generates a binaural sound signal based upon the SH representation, a tapering window function that is selected based on an SH encoding order of the SH representation, and a coloration compensation filter that incorporates the tapering window function. The computing system causes the binaural sound signal to be played over at least two speakers.Type: ApplicationFiled: July 2, 2019Publication date: January 7, 2021Inventors: Christoph Felix HOLD, Hannes GAMPER, Ville Topias PULKKI, Nikunj RAGHUVANSHI, Ivan Jelev TASHEV
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Patent number: 10602298Abstract: The description relates to parametric directional propagation for sound modeling and rendering. One implementation includes receiving virtual reality space data corresponding to a virtual reality space. The implementation can include using the virtual reality space data to simulate directional impulse responses for initial sounds emanating from multiple moving sound sources and arriving at multiple moving listeners. The implementation can include using the virtual reality space data to simulate directional impulse responses for sound reflections in the virtual reality space. The directional impulse responses can be encoded and used to render sound that accounts for a geometry of the virtual reality space.Type: GrantFiled: August 14, 2018Date of Patent: March 24, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Nikunj Raghuvanshi, John Snyder
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Publication number: 20190356999Abstract: The description relates to parametric directional propagation for sound modeling and rendering. One implementation includes receiving virtual reality space data corresponding to a virtual reality space. The implementation can include using the virtual reality space data to simulate directional impulse responses for initial sounds emanating from multiple moving sound sources and arriving at multiple moving listeners. The implementation can include using the virtual reality space data to simulate directional impulse responses for sound reflections in the virtual reality space. The directional impulse responses can be encoded and used to render sound that accounts for a geometry of the virtual reality space.Type: ApplicationFiled: August 14, 2018Publication date: November 21, 2019Applicant: Microsoft Technology Licensing, LLCInventors: Nikunj RAGHUVANSHI, John SNYDER
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Patent number: 10341857Abstract: A privacy preserving sensor apparatus is described herein. The privacy preserving sensor apparatus includes a microphone that is configured to output a signal that is indicative of audio in an environment. The privacy preserving sensor apparatus further includes feature extraction circuitry integrated in the apparatus with the microphone, the feature extraction circuitry configured to extract features from the signal output by the microphone that are usable to detect occurrence of an event in the environment, wherein the signal output by the microphone is unable to be reconstructed based solely upon the features.Type: GrantFiled: January 24, 2018Date of Patent: July 2, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Yong Rui, Daniel Morris, Andrew D. Wilson, Nikunj Raghuvanshi, Desney S. Tan, Jeannette M. Wing
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Patent number: 10123140Abstract: Technologies pertaining to calibration of filters of an audio system are described herein. A mobile computing device is configured to compute values for respective filters, such as equalizer filters, and transmit the values to a receiver device in the audio system. The receiver device causes audio to be emitted from a speaker based upon the values for the filters.Type: GrantFiled: November 7, 2016Date of Patent: November 6, 2018Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Desney S. Tan, Daniel Morris, Andrew D. Wilson, Yong Rui, Nikunj Raghuvanshi, Jeannette M. Wing