Patents by Inventor Ashutosh Pandey
Ashutosh Pandey 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: 20160300584Abstract: The present disclosure discloses a conferencing apparatus that combines a beamforming microphone array (BMA) with an acoustic echo canceller where the BMA further comprises a plurality of microphones that are oriented to develop a corresponding plurality of microphone signals. The apparatus further includes a processor, memory, and storage where the processor is configured to execute program instructions. The processor performs a beamforming operation to create a plurality of combined signals. In addition, the processor performs an acoustic echo cancellation operation to generate a plurality of combined echo cancelled signals. Further, the processor selects one of the combined echo cancelled signals for transmission to the far end where the signal selection module uses the far end signal as information to inhibit the signal selection module from changing the selection of the combined echo cancelled signals while only the far end signal is active.Type: ApplicationFiled: June 23, 2016Publication date: October 13, 2016Applicant: ClearOne, Inc.Inventors: Ashutosh Pandey, Darrin T. Thurston, David K. Lambert, Tracy A. Bathurst
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Publication number: 20160302006Abstract: The present disclosure discloses a conferencing apparatus that combines a beamforming microphone array with an acoustic echo canceller. The apparatus includes a beamforming microphone array that further comprises a plurality of microphones wherein each microphone is configured to sense acoustic waves and the plurality of microphones are oriented to develop a corresponding plurality of microphone signals. The apparatus further includes a processor, memory, and storage where the processor is configured to execute program instructions. The processor performs a beamforming operation to create a plurality of combined signals. In addition, the processor performs an acoustic echo cancellation operation to generate a plurality of combined echo cancelled signals. Further, the processor performs a direction of arrival determination to select one of the plurality of combined echo cancelled signals. And, the processor selects one of the combined echo cancelled signals for transmission to the far end.Type: ApplicationFiled: June 23, 2016Publication date: October 13, 2016Applicant: ClearOne, Inc.Inventors: Ashutosh Pandey, Darrin T. Thurston, David K. Lambert, Tracy A. Bathurst
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Patent number: 9432237Abstract: Voice over internet protocol (VoIP) devices and conferencing systems may include a spatial encoder associated with a first endpoint and a spatial renderer associated with a second endpoint. The spatial renderer may configured to receive audio data. The audio data may be rendered among a plurality of speakers based on a first set of spatial information for a plurality of microphones associated with the first endpoint, and a second set of spatial information for the plurality of speakers associated with the second endpoint. A method for generating a sound field may include determining spatial information for a plurality of microphones in a local room, determining spatial information for a plurality of speakers in a remote room, mapping the spatial information for the plurality of microphones and the spatial information for the plurality of speakers, and generating a sound field in the remote room based on the mapping.Type: GrantFiled: June 11, 2012Date of Patent: August 30, 2016Assignee: CLEARONE, INC.Inventors: Tracy A. Bathurst, Derek Graham, Michael Braithwaite, Russell S. Ericksen, Brett Harris, Sandeep Kalra, David K. Lambert, Peter H. Manley, Ashutosh Pandey, Bryan Shaw, Michael Tilelli, Paul R. Bryson
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Publication number: 20160241955Abstract: Methods, systems, and apparatuses are described for improved multi-microphone source tracking and noise suppression. In multi-microphone devices and systems, frequency domain acoustic echo cancellation is performed on each microphone input, and microphone levels and sensitivity are normalized. Methods, systems, and apparatuses are also described for improved acoustic scene analysis and source tracking using steered null error transforms, on-line adaptive acoustic scene modeling, and speaker-dependent information. Switched super-directive beamforming reinforces desired audio sources and closed-form blocking matrices suppress desired audio sources based on spatial information derived from microphone pairings. Underlying statistics are tracked and used to updated filters and models. Automatic detection of single-user and multi-user scenarios, and single-channel suppression using spatial information, non-spatial information, and residual echo are also described.Type: ApplicationFiled: April 22, 2016Publication date: August 18, 2016Inventors: Jes Thyssen, Ashutosh Pandey, Bengt J. Borgstrom, Daniele Giacobello, Juin-Hwey Chen
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Publication number: 20160142548Abstract: This disclosure describes a conferencing apparatus with an automatically adapting beamforming microphone array for teleconferencing applications. The conferencing apparatus includes a processor coupled to memory, storage, and a housing. The apparatus further includes a communication element, a plurality of microphones arranged in the housing and configured as a beamforming microphone array, and an orientation sensor. Additionally, the apparatus includes executing a series of steps including: (a) adapting a signal-processing characteristic of the beamforming microphone array responsive to the orientation signal, (b) beamforming to combine the plurality of microphone signals to a plurality of combined signals, (c) performing an acoustic echo cancelation operation on the plurality of combined signals to generate a plurality of combined echo-canceled signals, and (d) selecting one or more of the plurality of combined echo-canceled signals for transmission.Type: ApplicationFiled: December 28, 2015Publication date: May 19, 2016Applicant: ClearOne Inc.Inventors: Ashutosh Pandey, Darrin T. Thurston, David K. Lambert, Tracy A. Bathurst
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Patent number: 9338551Abstract: Methods, systems, and apparatuses are described for improved multi-microphone source tracking and noise suppression. In multi-microphone devices and systems, frequency domain acoustic echo cancellation is performed on each microphone input, and microphone levels and sensitivity are normalized. Methods, systems, and apparatuses are also described for improved acoustic scene analysis and source tracking using steered null error transforms, on-line adaptive acoustic scene modeling, and speaker-dependent information. Switched super-directive beamforming reinforces desired audio sources and closed-form blocking matrices suppress desired audio sources based on spatial information derived from microphone pairings. Underlying statistics are tracked and used to updated filters and models. Automatic detection of single-user and multi-user scenarios, and single-channel suppression using spatial information, non-spatial information, and residual echo are also described.Type: GrantFiled: March 17, 2014Date of Patent: May 10, 2016Assignee: Broadcom CorporationInventors: Jes Thyssen, Ashutosh Pandey, Bengt J. Borgstrom, Daniele Giacobello, Juin-Hwey Chen
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Patent number: 9293140Abstract: Methods, systems, and apparatuses are described for performing speaker-identification-assisted speech processing. In accordance with certain embodiments, a communication device includes speaker identification (SID) logic that is configured to identify a user of the communication device and/or the identity of a far-end speaker participating in a voice call with a user of the communication device. Knowledge of the identity of the user and/or far-end speaker is then used to improve the performance of one or more speech processing algorithms implemented on the communication device.Type: GrantFiled: August 13, 2013Date of Patent: March 22, 2016Assignee: Broadcom CorporationInventors: Juin-Hwey Chen, Robert W. Zopf, Bengt J. Borgstrom, Elias Nemer, Ashutosh Pandey, Jes Thyssen
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Patent number: 9269368Abstract: Methods, systems, and apparatuses are described for performing speaker-identification-assisted speech processing in an uplink path of a communication device. In accordance with certain embodiments, a communication device includes speaker identification (SID) logic that is configured to identify the identity of a near-end speaker. Knowledge of the identity of the near-end speaker is then used to improve the performance of one or more uplink speech processing algorithms implemented on the communication device.Type: GrantFiled: October 31, 2013Date of Patent: February 23, 2016Assignee: Broadcom CorporationInventors: Juin-Hwey Chen, Jes Thyssen, Elias Nemer, Bengt J. Borgstrom, Ashutosh Pandey, Robert W. Zopf
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Patent number: 9264553Abstract: Embodiments include methods and apparatuses for sensing acoustic waves for a conferencing application. A conferencing apparatus includes a plurality of microphones oriented to cover a corresponding plurality of direction vectors and to develop a corresponding plurality of microphone signals. A processor is operably coupled to the plurality of microphones. The processor is configured to perform a beamforming operation to combine the plurality of microphone signals to a plurality of combined signals that is greater in number than one and less in number than the plurality of microphone signals. The processor is also configured perform an acoustic echo cancelation operation on the plurality of combined signals to generate a plurality of combined echo-canceled signals and select one of the plurality of combined echo-canceled signals for transmission.Type: GrantFiled: June 11, 2012Date of Patent: February 16, 2016Assignee: ClearOne Communications, Inc.Inventors: Ashutosh Pandey, Darrin T. Thurston, David K. Lambert, Tracy A. Bathurst
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Patent number: 9226088Abstract: Embodiments include methods and apparatuses for sensing acoustic waves for a conferencing application. A conferencing apparatus includes a plurality of directional microphones oriented to cover a corresponding plurality of direction vectors and disposed in a housing. An orientation sensor is configured to generate an orientation signal indicative of an orientation of the housing. A processor is operably coupled to the plurality of directional microphones and the orientation sensor. The processor is configured to automatically adjust a signal processing characteristic of one or more directional microphones of the plurality of directional microphones responsive to the orientation signal.Type: GrantFiled: June 11, 2012Date of Patent: December 29, 2015Assignee: ClearOne Communications, Inc.Inventors: Ashutosh Pandey, Darrin T. Thurston, David K. Lambert, Tracy A. Bathurst
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Patent number: 9215327Abstract: Embodiments include methods and apparatuses for echo cancelation involving multiple audio channels and the production, sensing, or a combination thereof of multiple audio channels in conferencing systems. A conferencing apparatus with a plurality of speakers configured to generate outgoing acoustic waves responsive to a multi-channel audio signal. One or more microphones are configured to sense incoming acoustic waves from the plurality of speakers and from locally produced acoustic waves from a participant of a conference to generate one or more incoming audio signals. A processor is operably coupled to the plurality of speakers and the one or more microphones. The processor is configured to perform acoustic echo cancelation on the one or more incoming audio signals relative to at least two different channels of the multi-channel audio signal.Type: GrantFiled: June 11, 2012Date of Patent: December 15, 2015Assignee: ClearOne Communications, Inc.Inventors: Tracy A. Bathurst, Derek Graham, Michael Braithwaite, Russel S. Ericksen, Brett Harris, Sandeep Kalra, David K. Lambert, Peter H. Manley, Ashutosh Pandey, Bryan Shaw, Michael Tilelli, Paul R. Bryson
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Publication number: 20140286497Abstract: Methods, systems, and apparatuses are described for improved multi-microphone source tracking and noise suppression. In multi-microphone devices and systems, frequency domain acoustic echo cancellation is performed on each microphone input, and microphone levels and sensitivity are normalized. Methods, systems, and apparatuses are also described for improved acoustic scene analysis and source tracking using steered null error transforms, on-line adaptive acoustic scene modeling, and speaker-dependent information. Switched super-directive beamforming reinforces desired audio sources and closed-form blocking matrices suppress desired audio sources based on spatial information derived from microphone pairings. Underlying statistics are tracked and used to updated filters and models. Automatic detection of single-user and multi-user scenarios, and single-channel suppression using spatial information, non-spatial information, and residual echo are also described.Type: ApplicationFiled: March 17, 2014Publication date: September 25, 2014Applicant: Broadcom CorporationInventors: Jes Thyssen, Ashutosh Pandey, Bengt J. Borgstrom, Daniele Giacobello, Juin-Hwey Chen
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Publication number: 20140278418Abstract: Methods, systems, and apparatuses are described for performing speaker-identification-assisted speech processing in a downlink path of a communication device. In accordance with certain embodiments, a communication device includes speaker identification (SID) logic that is configured to identify the identity of a far-end speaker participating in a voice call with a user of the communication device. Knowledge of the identity of the far-end speaker is then used to improve the performance of one or more downlink speech processing algorithms implemented on the communication device.Type: ApplicationFiled: September 30, 2013Publication date: September 18, 2014Inventors: Juin-Hwey Chen, Robert W. Zopf, Bengt J. Borgstrom, Elias Nemer, Ashutosh Pandey, Jes Thyssen
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Publication number: 20140278417Abstract: Methods, systems, and apparatuses are described for performing speaker-identification-assisted speech processing. In accordance with certain embodiments, a communication device includes speaker identification (SID) logic that is configured to identify a user of the communication device and/or the identity of a far-end speaker participating in a voice call with a user of the communication device. Knowledge of the identity of the user and/or far-end speaker is then used to improve the performance of one or more speech processing algorithms implemented on the communication device.Type: ApplicationFiled: August 13, 2013Publication date: September 18, 2014Applicant: Broadcom CorporationInventors: Juin-Hwey Chen, Robert W. Zopf, Bengt J. Borgstrom, Elias Nemer, Ashutosh Pandey, Jes Thyssen
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Publication number: 20140278397Abstract: Methods, systems, and apparatuses are described for performing speaker-identification-assisted speech processing in an uplink path of a communication device. In accordance with certain embodiments, a communication device includes speaker identification (SID) logic that is configured to identify the identity of a near-end speaker. Knowledge of the identity of the near-end speaker is then used to improve the performance of one or more uplink speech processing algorithms implemented on the communication device.Type: ApplicationFiled: October 31, 2013Publication date: September 18, 2014Applicant: Broadcom CorporationInventors: Juin-Hwey Chen, Jes Thyssen, Elias Nemer, Bengt J. Borgstrom, Ashutosh Pandey, Robert W. Zopf
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Patent number: 8630437Abstract: Adaptive notch filters can be used to estimate offending frequencies caused by feedback within a hearing aid system. The offending frequencies can be suppressed by filtering. Offending frequencies can be identified based on variability of the adaptive notch filter parameters.Type: GrantFiled: February 22, 2011Date of Patent: January 14, 2014Assignee: University of Utah Research FoundationInventors: Ashutosh Pandey, V. John Mathews
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Publication number: 20130097333Abstract: Embodiments include methods, computer-readable media, and apparatuses for supporting unified streaming communications. A communication apparatus is configured to communicate over a network to incorporate a wide variety of protocols and peripheral devices for use in audio, video, and media communication systems.Type: ApplicationFiled: June 12, 2012Publication date: April 18, 2013Applicant: CLEARONE COMMUNICATIONS, INC.Inventors: Tracy A. Bathurst, Derek Graham, Michael Braithwaite, Russel S. Ericksen, Brett Harris, Sandeep Kalra, David K. Lambert, Peter H. Manley, Ashutosh Pandey, Bryan Shaw, Darrin T. Thurston, Michael Tilelli, Paul R. Bryson
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Publication number: 20130094653Abstract: Voice over internet protocol (VoIP) devices and conferencing systems may include a spatial encoder associated with a first endpoint and a spatial renderer associated with a second endpoint. The spatial renderer may configured to receive audio data. The audio data may be rendered among a plurality of speakers based on a first set of spatial information for a plurality of microphones associated with the first endpoint, and a second set of spatial information for the plurality of speakers associated with the second endpoint. A method for generating a sound field may include determining spatial information for a plurality of microphones in a local room, determining spatial information for a plurality of speakers in a remote room, mapping the spatial information for the plurality of microphones and the spatial information for the plurality of speakers, and generating a sound field in the remote room based on the mapping.Type: ApplicationFiled: June 11, 2012Publication date: April 18, 2013Applicant: CLEARONE COMMUNICATIONS, INC.Inventors: Tracy A. Bathurst, Derek Graham, Michael Braithwaite, Russel S. Ericksen, Brett Harris, Sandeep Kalra, David K. Lambert, Peter H. Manley, Ashutosh Pandey, Bryan Shaw, Michael Tilelli, Paul R. Bryson
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Publication number: 20130083911Abstract: Embodiments include methods and apparatuses for echo cancelation involving multiple audio channels and the production, sensing, or a combination thereof of multiple audio channels in conferencing systems. A conferencing apparatus with a plurality of speakers configured to generate outgoing acoustic waves responsive to a multi-channel audio signal. One or more microphones are configured to sense incoming acoustic waves from the plurality of speakers and from locally produced acoustic waves from a participant of a conference to generate one or more incoming audio signals. A processor is operably coupled to the plurality of speakers and the one or more microphones. The processor is configured to perform acoustic echo cancelation on the one or more incoming audio signals relative to at least two different channels of the multi-channel audio signal.Type: ApplicationFiled: June 11, 2012Publication date: April 4, 2013Applicant: ClearOne Communications, Inc.Inventors: Tracy A. Bathurst, Derek Graham, Michael Braithwaite, Russel S. Ericksen, Brett Harris, Sandeep Kalra, David K. Lambert, Peter H. Manley, Ashutosh Pandey, Bryan Shaw, Michael Tilelli, Paul R. Bryson
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Publication number: 20130039504Abstract: Embodiments include methods and apparatuses for sensing acoustic waves for a conferencing application. A conferencing apparatus includes a plurality of microphones oriented to cover a corresponding plurality of direction vectors and to develop a corresponding plurality of microphone signals. A processor is operably coupled to the plurality of microphones. The processor is configured to perform a beamforming operation to combine the plurality of microphone signals to a plurality of combined signals that is greater in number than one and less in number than the plurality of microphone signals. The processor is also configured perform an acoustic echo cancelation operation on the plurality of combined signals to generate a plurality of combined echo-canceled signals and select one of the plurality of combined echo-canceled signals for transmission.Type: ApplicationFiled: June 11, 2012Publication date: February 14, 2013Applicant: CLEARONE COMMUNICATIONS, INC.Inventors: Ashutosh Pandey, Darrin T. Thurston, David K. Lambert, Tracy A. Bathurst