Patents by Inventor Sylvain Angrignon
Sylvain Angrignon 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: 10283135Abstract: Suppression of tapping noise caused by tapping an acoustically coupled touchscreen. When a tapping event is detected on the touchscreen, a tapping noise suppressor is alerted of the event, and responds by at least temporarily mitigating the tapping noise in the audio stream. The suppression occurs temporarily for at least part of the duration of surge in audio levels that occurs as a result of the tapping event, and in a manner that reduces the psychoacoustic impact on the conversation. Suppression may be performed by first placing the tapping noise suppressors in an alert mode when a tapping event occurs. The tapping noise suppressor then monitors the audio stream generated by the microphone for the beginning of the tapping event—which will be represented in the form of a surge in volume. The tapping noise suppressor then temporarily applies the suppression window.Type: GrantFiled: December 22, 2016Date of Patent: May 7, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Kevin Juho Venalainen, Sylvain Angrignon
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Publication number: 20180182409Abstract: Suppression of tapping noise caused by tapping an acoustically coupled touchscreen. When a tapping event is detected on the touchscreen, a tapping noise suppressor is alerted of the event, and responds by at least temporarily mitigating the tapping noise in the audio stream. The suppression occurs temporarily for at least part of the duration of surge in audio levels that occurs as a result of the tapping event, and in a manner that reduces the psychoacoustic impact on the conversation. Suppression may be performed by first placing the tapping noise suppressors in an alert mode when a tapping event occurs. The tapping noise suppressor then monitors the audio stream generated by the microphone for the beginning of the tapping event which will be represented in the form of a surge in volume. The tapping noise suppressor then temporarily applies the suppression window.Type: ApplicationFiled: December 22, 2016Publication date: June 28, 2018Inventors: Kevin Juho Venalainen, Sylvain Angrignon
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Patent number: 9432762Abstract: A system and method to perform signal processing using a loudspeaker output are described. The system includes an enclosure configured to define a back cavity of the loudspeaker and components to obtain a representation of the loudspeaker acoustic output at the back cavity. The system also includes a processor to process the representation to perform the signal processing.Type: GrantFiled: December 2, 2013Date of Patent: August 30, 2016Assignee: BlackBerry LimitedInventors: Andre John Van Schyndel, Chris Forrester, Sylvain Angrignon
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Patent number: 9131041Abstract: Audio input may be received at one or more microphones of a mobile device. Based on the audio input, a change in an acoustic environment of the device, such as a change in a direction of arrival of the audio input or a degradation in a quality of acoustic echo cancellation being performed upon the audio input, may be detected. A determination may be made that the detected change coincides with a non-acoustic physical event detected using an auxiliary sensor at the mobile device. The event may for example be device motion, a new proximate object, a change in a proximity of an object, a new heat source or a change in a heat level from a known heat source. Based on the determining, a signal processor, possibly comprising an audio beamformer or echo canceller, may be recalibrated, e.g. the audio beamformer or echo canceller may be caused to reconverge.Type: GrantFiled: October 19, 2012Date of Patent: September 8, 2015Assignee: BlackBerry LimitedInventors: Brady Nicholas Laska, Chris Forrester, Malay Gupta, Sylvain Angrignon, Michael Tetelbaum, James David Gordy
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Patent number: 9083782Abstract: A telephonic device having a speakerphone function has a loudspeaker and a plurality of microphones. The plurality of microphones are coupled to a plurality of beamformers which produce a first beamform having a spatial null in the direction of the loudspeaker and a second beamform having a spatial null in the direction of near-end signals. The two beamforms are then processed to facilitate echo reduction. By comparing the beamform powers, a state of double-talk can be determined and the determination can be used to enhance echo reduction associated with speakerphone functionality.Type: GrantFiled: May 8, 2013Date of Patent: July 14, 2015Assignee: BlackBerry LimitedInventors: Michael Tetelbaum, James David Gordy, Brady Nicholas Laska, Chris Forrester, Malay Gupta, Sylvain Angrignon
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Publication number: 20150156580Abstract: A system and method to perform signal processing using a loudspeaker output are described. The system includes an enclosure configured to define a back cavity of the loudspeaker and components to obtain a representation of the loudspeaker acoustic output at the back cavity. The system also includes a processor to process the representation to perform the signal processing.Type: ApplicationFiled: December 2, 2013Publication date: June 4, 2015Applicant: BLACKBERRY LIMITEDInventors: Andre John Van Schyndel, Chris Forrester, Sylvain Angrignon
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Publication number: 20140335917Abstract: A telephonic device having a speakerphone function has a loudspeaker and a plurality of microphones. The plurality of microphones are coupled to a plurality of beamformers which produce a first beamform having a spatial null in the direction of the loudspeaker and a second beamform having a spatial null in the direction of near-end signals. The two beamforms are then processed to facilitate echo reduction. By comparing the beamform powers, a state of double-talk can be determined and the determination can be used to enhance echo reduction associated with speakerphone functionality.Type: ApplicationFiled: May 8, 2013Publication date: November 13, 2014Applicant: Research In Motion LimitedInventors: Michael TETELBAUM, James David GORDY, Brady Nicholas LASKA, Chris FORRESTER, Malay GUPTA, Sylvain ANGRIGNON
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Publication number: 20140112487Abstract: Audio input may be received at one or more microphones of a mobile device. Based on the audio input, a change in an acoustic environment of the device, such as a change in a direction of arrival of the audio input or a degradation in a quality of acoustic echo cancellation being performed upon the audio input, may be detected. A determination may be made that the detected change coincides with a non-acoustic physical event detected using an auxiliary sensor at the mobile device. The event may for example be device motion, a new proximate object, a change in a proximity of an object, a new heat source or a change in a heat level from a known heat source. Based on the determining, a signal processor, possibly comprising an audio beamformer or echo canceller, may be recalibrated, e.g. the audio beamformer or echo canceller may be caused to reconverge.Type: ApplicationFiled: October 19, 2012Publication date: April 24, 2014Applicant: RESEARCH IN MOTION LIMITEDInventors: Brady Nicholas LASKA, Chris FORRESTER, Malay GUPTA, Sylvain ANGRIGNON, Michael TETELBAUM, James David GORDY
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Patent number: 6665402Abstract: An echo cancellation device for reducing a magnitude of an echo occurring in a voice signal propagating in a channel of a communication system. The echo cancellation device is capable to selectively acquire an active operative mode and an inactive operative mode in response to a condition indicative of a level of echo present in the voice signal. In the active operative mode the echo cancellation device performs echo cancellation on the voice signal. In the inactive operative mode the echo cancellation device allows the voice signal to propagate without performing any echo cancellation.Type: GrantFiled: August 31, 1999Date of Patent: December 16, 2003Assignee: Nortel Networks LimitedInventors: H. S. Peter Yue, Sylvain Angrignon