Inventor · disambiguated record
Amit Singh Chhetri
Also filed as: CHHETRI AMIT · CHHETRI AMIT S · CHHETRI AMIT SINGH
48 granted patents·2,154 citations·filing 2005–2023
99Inventor score
Top patents by PatentIndex Score
48 records- 0198US11854564B1Autonomously motile device with noise suppressionAMAZON TECH INC·Filed 2020·Granted Dec 26, 2023·16 cites·20 claims
- 0298US11646009B1Autonomously motile device with noise suppressionAMAZON TECH INC·Filed 2020·Granted May 9, 2023·27 cites·18 claims
- 0398US11521635B1Systems and methods for noise cancellationAMAZON TECH INC·Filed 2020·Granted Dec 6, 2022·16 cites·20 claims
- 0498US10863270B1Beamforming for a wearable computerAMAZON TECH INC·Filed 2019·Granted Dec 8, 2020·38 cites·20 claims
- 0598US10304475B1Trigger word based beam selectionAMAZON TECH INC·Filed 2017·Granted May 28, 2019·161 cites·20 claims
- 0698US9820036B1Speech processing of reflected soundAMAZON TECH INC·Filed 2015·Granted Nov 14, 2017·202 cites·19 claims
- 0798US9754605B1Step-size control for multi-channel acoustic echo cancellerAMAZON TECH INC·Filed 2016·Granted Sep 5, 2017·206 cites·20 claims
- 0898US9689960B1Beam rejection in multi-beam microphone systemsAMAZON TECH INC·Filed 2013·Granted Jun 27, 2017·181 cites·19 claims
- 0997US10746840B1Beam rejection in multi-beam microphone systemsAMAZON TECH INC·Filed 2017·Granted Aug 18, 2020·57 cites·20 claims
- 1097US10229698B1Playback reference signal-assisted multi-microphone interference cancelerAMAZON TECH INC·Filed 2017·Granted Mar 12, 2019·49 cites·20 claims
- 1197US10147439B1Volume adjustment for listening environmentAMAZON TECH INC·Filed 2017·Granted Dec 4, 2018·55 cites·18 claims
- 1297US9678559B1Determining a device state based on user presence detectionAMAZON TECH INC·Filed 2015·Granted Jun 13, 2017·45 cites·20 claims
- 1397US9591404B1Beamformer design using constrained convex optimization in three-dimensional spaceAMAZON TECH INC·Filed 2013·Granted Mar 7, 2017·76 cites·22 claims
- 1497US9456276B1Parameter selection for audio beamformingRAWLES LLC·Filed 2014·Granted Sep 27, 2016·76 cites·19 claims
- 1597US9432769B1Method and system for beam selection in microphone array beamformersAMAZON TECH INC·Filed 2014·Granted Aug 30, 2016·42 cites·21 claims
- 1697US9432768B1Beam forming for a wearable computerAMAZON TECH INC·Filed 2014·Granted Aug 30, 2016·46 cites·22 claims
- 1796US11218802B1Beamformer rotationAMAZON TECH INC·Filed 2018·Granted Jan 4, 2022·24 cites·20 claims
- 1896US10452116B1Determining a device state based on user presence detectionAMAZON TECH INC·Filed 2017·Granted Oct 22, 2019·30 cites·20 claims
- 1996US9734845B1Mitigating effects of electronic audio sources in expression detectionAMAZON TECH INC·Filed 2015·Granted Aug 15, 2017·51 cites·23 claims
- 2095US11159878B1Autonomously motile device with beamformingAMAZON TECH INC·Filed 2019·Granted Oct 26, 2021·71 cites·23 claims
- 2195US9973848B2Signal-enhancing beamforming in an augmented reality environmentCHHETRI AMIT S·Filed 2011·Granted May 15, 2018·42 cites·24 claims
- 2295US9973849B1Signal quality beam selectionAMAZON TECH INC·Filed 2017·Granted May 15, 2018·185 cites·20 claims
- 2395US9704478B1Audio output masking for improved automatic speech recognitionAMAZON TECH INC·Filed 2013·Granted Jul 11, 2017·201 cites·25 claims
- 2494US8275120B2Adaptive acoustic echo cancellationSTOKES III JACK W·Filed 2006·Granted Sep 25, 2012·54 cites·20 claims
- 2592US9319783B1Attenuation of output audio based on residual echoAMAZON TECH INC·Filed 2014·Granted Apr 19, 2016·18 cites·24 claims
- 2692US8855295B1Acoustic echo cancellation using blind source separationCHHETRI AMIT S·Filed 2012·Granted Oct 7, 2014·24 cites·24 claims
- 2791US8885815B1Null-forming techniques to improve acoustic echo cancellationVELUSAMY KAVITHA·Filed 2012·Granted Nov 11, 2014·26 cites·21 claims
- 2890US12272369B1Dereverberation and noise reductionAMAZON TECH INC·Filed 2022·Granted Apr 8, 2025·6 cites·20 claims
- 2990US10242695B1Acoustic echo cancellation using visual cuesAMAZON TECH INC·Filed 2017·Granted Mar 26, 2019·5 cites·20 claims
- 3089US11425494B1Autonomously motile device with adaptive beamformingAMAZON TECH INC·Filed 2019·Granted Aug 23, 2022·7 cites·21 claims
- 3189US10244313B1Beamforming for a wearable computerAMAZON TECH INC·Filed 2016·Granted Mar 26, 2019·7 cites·20 claims
- 3289US9767828B1Acoustic echo cancellation using visual cuesVELUSAMY KAVITHA·Filed 2012·Granted Sep 19, 2017·17 cites·24 claims
- 3389US8953777B1Echo path change detector with robustness to double talkAMAZON TECH INC·Filed 2013·Granted Feb 10, 2015·11 cites·20 claims
- 3489US7813499B2System and process for regression-based residual acoustic echo suppressionMICROSOFT CORP·Filed 2005·Granted Oct 12, 2010·16 cites·18 claims
- 3586US10237647B1Adaptive step-size control for beamformerAMAZON TECH INC·Filed 2017·Granted Mar 19, 2019·6 cites·16 claims
- 3685US9473646B1Robust acoustic echo cancellationAMAZON TECH INC·Filed 2013·Granted Oct 18, 2016·8 cites·20 claims
- 3785US9390723B1Efficient dereverberation in networked audio systemsAMAZON TECH INC·Filed 2014·Granted Jul 12, 2016·11 cites·21 claims
- 3885US8983057B1Step size control for acoustic echo cancellationAMAZON TECH INC·Filed 2013·Granted Mar 17, 2015·10 cites·20 claims
- 3983US11175372B1Beam rejection in multi-beam microphone systemsAMAZON TECH INC·Filed 2020·Granted Nov 16, 2021·1 cites·20 claims
- 4081US9978387B1Reference signal generation for acoustic echo cancellationAMAZON TECH INC·Filed 2013·Granted May 22, 2018·8 cites·24 claims
- 4181US9837099B1Method and system for beam selection in microphone array beamformersAMAZON TECH INC·Filed 2016·Granted Dec 5, 2017·4 cites·18 claims
- 4280US9373338B1Acoustic echo cancellation processing based on feedback from speech recognizerGOPALAN RAMYA·Filed 2012·Granted Jun 21, 2016·11 cites·27 claims
- 4378US11205438B1Autonomously motile device with acoustic echo cancellationAMAZON TECH INC·Filed 2019·Granted Dec 21, 2021·2 cites·20 claims
- 4477US9521249B1Echo path change detector with robustness to double talkAMAZON TECH INC·Filed 2015·Granted Dec 13, 2016·3 cites·17 claims
- 4576US11624800B1Beam rejection in multi-beam microphone systemsAMAZON TECH INC·Filed 2021·Granted Apr 11, 2023·0 cites·20 claims
- 4664US8416946B2System and process for regression-based residual acoustic echo suppressionCHHETRI AMIT·Filed 2010·Granted Apr 9, 2013·2 cites·20 claims
- 4756US12455372B1Presence detection based on multiple sensorsAMAZON TECH INC·Filed 2023·Granted Oct 28, 2025·0 cites·20 claims
- 4848US11258478B1Autonomously motile device with residual echo suppressionAMAZON TECH INC·Filed 2019·Granted Feb 22, 2022·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →