Inventor · disambiguated record
Robert Ayrapetian
Also filed as: AYRAPETIAN ROBERT
40 granted patents·4 pending applications·1,650 citations·filing 2002–2025
98Inventor score
Files withAMAZON TECH INC36AYRAPETIAN ROBERT4CENDRILLON RAPHAEL1DUXBURY SIMON1IKANOS COMMUNICATION INC1
Top patents by PatentIndex Score
44 records- 0199US9966059B1Reconfigurale fixed beam former using given microphone arrayAMAZON TECH INC·Filed 2017·Granted May 8, 2018·87 cites·20 claims
- 0299US9747920B2Adaptive beamforming to create reference channelsAMAZON TECH INC·Filed 2015·Granted Aug 29, 2017·197 cites·20 claims
- 0399US9659555B1Multichannel acoustic echo cancellationAMAZON TECH INC·Filed 2016·Granted May 23, 2017·226 cites·20 claims
- 0499US9653060B1Hybrid reference signal for acoustic echo cancellationAMAZON TECH INC·Filed 2016·Granted May 16, 2017·227 cites·20 claims
- 0598US9997151B1Multichannel acoustic echo cancellation for wireless applicationsAMAZON TECH INC·Filed 2016·Granted Jun 12, 2018·67 cites·20 claims
- 0698US9554210B1Multichannel acoustic echo cancellation with unique individual channel estimationsAMAZON TECH INC·Filed 2015·Granted Jan 24, 2017·143 cites·20 claims
- 0798US9472203B1Clock synchronization for multichannel systemAMAZON TECH INC·Filed 2015·Granted Oct 18, 2016·210 cites·20 claims
- 0897US10657981B1Acoustic echo cancellation with loudspeaker canceling beamformerAMAZON TECH INC·Filed 2018·Granted May 19, 2020·31 cites·20 claims
- 0997US10522167B1Multichannel noise cancellation using deep neural network maskingAMAZON TECH INC·Filed 2018·Granted Dec 31, 2019·48 cites·20 claims
- 1095US9967661B1Multichannel acoustic echo cancellationAMAZON TECH INC·Filed 2017·Granted May 8, 2018·15 cites·20 claims
- 1195US9832569B1Multichannel acoustic echo cancellation with unique individual channel estimationsAMAZON TECH INC·Filed 2016·Granted Nov 28, 2017·17 cites·20 claims
- 1295US9818425B1Parallel output paths for acoustic echo cancellationAMAZON TECH INC·Filed 2016·Granted Nov 14, 2017·36 cites·24 claims
- 1395US9589575B1Asynchronous clock frequency domain acoustic echo cancellerAMAZON TECH INC·Filed 2015·Granted Mar 7, 2017·17 cites·20 claims
- 1494US11277685B1Cascaded adaptive interference cancellation algorithmsAMAZON TECH INC·Filed 2018·Granted Mar 15, 2022·11 cites·20 claims
- 1594US10755728B1Multichannel noise cancellation using frequency domain spectrum maskingAMAZON TECH INC·Filed 2018·Granted Aug 25, 2020·19 cites·20 claims
- 1694US10553236B1Multichannel noise cancellation using frequency domain spectrum maskingAMAZON TECH INC·Filed 2018·Granted Feb 4, 2020·20 cites·16 claims
- 1794US9286883B1Acoustic echo cancellation and automatic speech recognition with random noiseAMAZON TECH INC·Filed 2013·Granted Mar 15, 2016·26 cites·23 claims
- 1893US10109294B1Adaptive echo cancellationAMAZON TECH INC·Filed 2016·Granted Oct 23, 2018·20 cites·20 claims
- 1993US9246545B1Adaptive estimation of delay in audio systemsAMAZON TECH INC·Filed 2014·Granted Jan 26, 2016·20 cites·20 claims
- 2092US11792570B1Parallel noise suppressionAMAZON TECH INC·Filed 2021·Granted Oct 17, 2023·4 cites·20 claims
- 2192US11483646B1Beamforming using filter coefficients corresponding to virtual microphonesAMAZON TECH INC·Filed 2018·Granted Oct 25, 2022·13 cites·20 claims
- 2290US9516410B1Asynchronous clock frequency domain acoustic echo cancellerAMAZON TECH INC·Filed 2015·Granted Dec 6, 2016·10 cites·22 claims
- 2390US9373318B1Signal rate synchronization for remote acoustic echo cancellationRAWLES LLC·Filed 2014·Granted Jun 21, 2016·16 cites·20 claims
- 2490US9036816B1Frequency domain acoustic echo cancellation using filters and variable step-size updatesAMAZON TECH INC·Filed 2014·Granted May 19, 2015·12 cites·20 claims
- 2589US9219456B1Correcting clock drift via embedded sin wavesAMAZON TECH INC·Filed 2013·Granted Dec 22, 2015·10 cites·20 claims
- 2689US7499464B2Buffered crossbar switch with a linear buffer to port relationship that supports cells and packets of variable sizeAYRAPETIAN ROBERT·Filed 2006·Granted Mar 3, 2009·69 cites·6 claims
- 2787US9172791B1Noise estimation algorithm for non-stationary environmentsAMAZON TECH INC·Filed 2014·Granted Oct 27, 2015·9 cites·14 claims
- 2885US10937418B1Echo cancellation by acoustic playback estimationAMAZON TECH INC·Filed 2019·Granted Mar 2, 2021·9 cites·18 claims
- 2985US9390723B1Efficient dereverberation in networked audio systemsAMAZON TECH INC·Filed 2014·Granted Jul 12, 2016·11 cites·21 claims
- 3083US9966086B1Signal rate synchronization for remote acoustic echo cancellationAMAZON TECH INC·Filed 2016·Granted May 8, 2018·5 cites·20 claims
- 3183US9820049B1Clock synchronization for multichannel systemAMAZON TECH INC·Filed 2016·Granted Nov 14, 2017·4 cites·20 claims
- 3281US9918163B1Asynchronous clock frequency domain acoustic echo cancellerAMAZON TECH INC·Filed 2016·Granted Mar 13, 2018·3 cites·20 claims
- 3378US8077646B1Equalization in a wireless multiple access communication systemCENDRILLON RAPHAEL·Filed 2008·Granted Dec 13, 2011·8 cites·26 claims
- 3477US9787825B1Cyclically variable signal delays for acoustic echo cancellationAMAZON TECH INC·Filed 2015·Granted Oct 10, 2017·4 cites·20 claims
- 3576US8705676B2Method and apparatus for clock recovery in XDSL transceiversAYRAPETIAN ROBERT·Filed 2010·Granted Apr 22, 2014·6 cites·21 claims
- 3675US2025365534A1Group beam selection and beam mergingAMAZON TECH INC·Filed 2025·Application pending·0 cites
- 3771US7076002B1Method and apparatus for symbol boundary synchronizationIKANOS COMMUNICATION INC·Filed 2002·Granted Jul 11, 2006·19 cites·5 claims
- 3865US11812237B2Cascaded adaptive interference cancellation algorithmsAMAZON TECH INC·Filed 2021·Granted Nov 7, 2023·0 cites·17 claims
- 3964US9773510B1Correcting clock drift via embedded sine wavesAMAZON TECH INC·Filed 2015·Granted Sep 26, 2017·1 cites·20 claims
- 4063US12401942B1Group beam selection and beam mergingAMAZON TECH INC·Filed 2023·Granted Aug 26, 2025·0 cites·20 claims
- 4146US12444431B1Microphone reference echo cancellationAMAZON TECH INC·Filed 2021·Granted Oct 14, 2025·0 cites·23 claims
- 4246US2010034208A1Buffered Crossbar Switch With a Linear Buffer to Port Relationship that Supports Cells and Packets of Variable SizeAYRAPETIAN ROBERT·Filed 2009·Application pending·0 cites
- 4339US2007140260A1System and method of single switch string hardwareDUXBURY SIMON·Filed 2006·Application pending·0 cites
- 4438US2007121660A1Load balanced architecture of cascading of MxM Ethernet packet based switches that supports up to 4 levels of QoSAYRAPETIAN ROBERT·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →