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).

  • Patent number: 10341857
    Abstract: 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: Grant
    Filed: January 24, 2018
    Date of Patent: July 2, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yong Rui, Daniel Morris, Andrew D. Wilson, Nikunj Raghuvanshi, Desney S. Tan, Jeannette M. Wing
  • Patent number: 10123140
    Abstract: 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: Grant
    Filed: November 7, 2016
    Date of Patent: November 6, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Desney S. Tan, Daniel Morris, Andrew D. Wilson, Yong Rui, Nikunj Raghuvanshi, Jeannette M. Wing
  • Patent number: 10057764
    Abstract: 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: Grant
    Filed: January 18, 2014
    Date of Patent: August 21, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Yong Rui, Daniel Morris, Andrew D. Wilson, Nikunj Raghuvanshi, Desney S. Tan, Jeannette M. Wing
  • Publication number: 20180220297
    Abstract: 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: Application
    Filed: January 24, 2018
    Publication date: August 2, 2018
    Inventors: Yong Rui, Daniel Morris, Andrew D. Wilson, Nikunj Raghuvanshi, Desney S. Tan, Jeannette M. Wing
  • Patent number: 9922463
    Abstract: The techniques describe herein use sensor(s) to scan a real-world environment and obtain data associated with geometry of the real-world environment that affects how energy propagates (e.g., locations of spatial objects in a room). The sensor(s) also detect energy (e.g., sound) in the real-world environment, from which a location of a source of the energy can be determined. The techniques combine the geometry data and the energy data to determine how the detected energy propagates from the location of the source through the real-world environment. The techniques can then cause a representation of the propagating energy to be displayed, to a user, as virtual content via a mixed reality device. Accordingly, a user is able to see energy that is otherwise invisible.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 20, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Jaron Lanier, Kishore Rathinavel, Nikunj Raghuvanshi
  • Patent number: 9729984
    Abstract: 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: Grant
    Filed: January 18, 2014
    Date of Patent: August 8, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Desney S. Tan, Daniel Morris, Andrew D. Wilson, Yong Rui, Nikunj Raghuvanshi, Jeannette M. Wing
  • Publication number: 20170055075
    Abstract: 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: Application
    Filed: November 7, 2016
    Publication date: February 23, 2017
    Inventors: Desney S. Tan, Daniel Morris, Andrew D. Wilson, Yong Rui, Nikunj Raghuvanshi, Jeannette M. Wing
  • Publication number: 20170039767
    Abstract: The techniques describe herein use sensor(s) to scan a real-world environment and obtain data associated with geometry of the real-world environment that affects how energy propagates (e.g., locations of spatial objects in a room). The sensor(s) also detect energy (e.g., sound) in the real-world environment, from which a location of a source of the energy can be determined. The techniques combine the geometry data and the energy data to determine how the detected energy propagates from the location of the source through the real-world environment. The techniques can then cause a representation of the propagating energy to be displayed, to a user, as virtual content via a mixed reality device. Accordingly, a user is able to see energy that is otherwise invisible.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 9, 2017
    Inventors: Jaron Lanier, Kishore Rathinavel, Nikunj Raghuvanshi
  • Patent number: 9560445
    Abstract: Technologies pertaining to provision of customized audio to each listener in a plurality of listeners are described herein. A sensor outputs data that is indicative of locations of multiple listeners in an environment. The data is processed to determine locations and orientations of the respective heads of the multiple listener in the environment. Based on the locations and orientations of heads of the listeners in the environment, for each listener, respective customized audio signals are generated. The customized audio signals are transmitted to respective beamforming transducers. The beamforming transducers directionally output customized beams for the first listener and the second listener based upon the customized audio signals and locations of the heads of the listeners.
    Type: Grant
    Filed: January 18, 2014
    Date of Patent: January 31, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Nikunj Raghuvanshi, Daniel Morris, Andrew D. Wilson, Yong Rui, Desney S. Tan, Jeannette M. Wing
  • Patent number: 9510125
    Abstract: The techniques discussed herein may facilitate real-time computation and playback of a propagated signal(s) perceived at a listener location in a three-dimensional environment in response to reception of a desired anechoic signal at a source location in the three-dimensional environment. The propagated audio realistically accounts for dynamic signal sources, dynamic listeners, and effects caused by the geometry and composition of the three-dimensional environment. The techniques may parameterize impulse response(s) of the environment and convolve the anechoic signal with canonical filters at run-time in a manner that respects the parameters of the parameterized impulse response(s). The techniques also provide for real-time computation and playback of a propagated audio signal perceived at a listener location in a virtual three-dimensional environment responsive to generation of source audio signals generated at multiple source locations in the virtual three-dimensional environment.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: November 29, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Nikunj Raghuvanshi, John Michael Snyder
  • Patent number: 9432790
    Abstract: Described herein are techniques pertaining to real-time propagation of an arbitrary audio signal in a fixed virtual environment with dynamic audio sources and receivers. A wave-based numerical simulator is configured to compute response signals in the virtual environment with respect to a sample signal at various source and receiver locations. The response signals are compressed and placed in the frequency domain to generate frequency responses. Such frequency responses are selectively convolved with the arbitrary audio signal to allow real-time propagation with moving sources and receivers in the virtual environment.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: August 30, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Nikunj Raghuvanshi, John Michael Snyder, Ming Chieh Lin, Naga K. Govindaraju
  • Publication number: 20150373475
    Abstract: The techniques discussed herein may facilitate real-time computation and playback of a propagated signal(s) perceived at a listener location in a three-dimensional environment in response to reception of a desired anechoic signal at a source location in the three-dimensional environment. The propagated audio realistically accounts for dynamic signal sources, dynamic listeners, and effects caused by the geometry and composition of the three-dimensional environment. The techniques may parameterize impulse response(s) of the environment and convolve the anechoic signal with canonical filters at run-time in a manner that respects the parameters of the parameterized impulse response(s). The techniques also provide for real-time computation and playback of a propagated audio signal perceived at a listener location in a virtual three-dimensional environment responsive to generation of source audio signals generated at multiple source locations in the virtual three-dimensional environment.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 24, 2015
    Inventors: Nikunj Raghuvanshi, John Michael Snyder
  • Publication number: 20150208233
    Abstract: 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: Application
    Filed: January 18, 2014
    Publication date: July 23, 2015
    Applicant: Microsoft Corporation
    Inventors: Yong Rui, Daniel Morris, Andrew D. Wilson, Nikunj Raghuvanshi, Desney S. Tan, Jeannette M. Wing
  • Publication number: 20150208166
    Abstract: Technologies pertaining to provision of customized audio to each listener in a plurality of listeners are described herein. A sensor outputs data that is indicative of locations of multiple listeners in an environment. The data is processed to determine locations and orientations of the respective heads of the multiple listener in the environment. Based on the locations and orientations of heads of the listeners in the environment, for each listener, respective customized audio signals are generated. The customized audio signals are transmitted to respective beamforming transducers. The beamforming transducers directionally output customized beams for the first listener and the second listener based upon the customized audio signals and locations of the heads of the listeners.
    Type: Application
    Filed: January 18, 2014
    Publication date: July 23, 2015
    Applicant: Microsoft Corporation
    Inventors: Nikunj Raghuvanshi, Daniel Morris, Andrew D. Wilson, Yong Rui, Desney S. Tan, Jeannette M. Wing
  • Publication number: 20150208184
    Abstract: 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: Application
    Filed: January 18, 2014
    Publication date: July 23, 2015
    Applicant: Microsoft Corporation
    Inventors: Desney S. Tan, Daniel Morris, Andrew D. Wilson, Yong Rui, Nikunj Raghuvanshi, Jeannette M. Wing
  • Publication number: 20150195644
    Abstract: A structural or aesthetic construction element, such as a wall section, is described herein, wherein the construction element has embedded therein an array of microphones, an array of speakers, and processing electronics that drives the array of microphones and the array of speakers. Audio captured by the microphones can be used to estimate a sound field corresponding to the construction element. Speakers in the array of speakers are configured to directionally output audio, such that a desired sound field is produced or reproduced.
    Type: Application
    Filed: January 9, 2014
    Publication date: July 9, 2015
    Applicant: Microsoft Corporation
    Inventors: Andrew D. Wilson, Daniel Morris, Desney S. Tan, Yong Rui, Nikunj Raghuvanshi, Jeannette M. Wing
  • Publication number: 20150179181
    Abstract: Technologies pertaining to improving an auditory experience of a listener are described. Audio is modified based upon noise generated by noise sources in an environment. A microphone generates a signal that is representative of noise in the environment, and the signal is processed to identify peak frequencies therein. When a key frequency of the audio is proximate to a peak frequency in the noise, the audio is modified to improve the listener's perception of the audio.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 25, 2015
    Applicant: Microsoft Corporation
    Inventors: Daniel Morris, Andrew D. Wilson, Desney S. Tan, Yong Rui, Nikunj Raghuvanshi, Jeannette M. Wing
  • Publication number: 20110081023
    Abstract: Described herein are techniques pertaining to real-time propagation of an arbitrary audio signal in a fixed virtual environment with dynamic audio sources and receivers. A wave-based numerical simulator is configured to compute response signals in the virtual environment with respect to a sample signal at various source and receiver locations. The response signals are compressed and placed in the frequency domain to generate frequency responses. Such frequency responses are selectively convolved with the arbitrary audio signal to allow real-time propagation with moving sources and receivers in the virtual environment.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 7, 2011
    Applicant: MICROSOFT CORPORATION
    Inventors: Nikunj Raghuvanshi, John Michael Snyder, Ming Chieh Lin, Naga K. Govindaraju