Inventor · disambiguated record
Sean A. Ramprashad
Also filed as: RAMPRASHAD SEAN · RAMPRASHAD SEAN A · RAMPRASHAD SEAN ANTHONY
52 granted patents·9 pending applications·519 citations·filing 2001–2024
98Inventor score
Top patents by PatentIndex Score
61 records- 0198US11812194B1Private conversations in a virtual settingAPPLE INC·Filed 2020·Granted Nov 7, 2023·18 cites·23 claims
- 0297US11295754B2Audio bandwidth reductionAPPLE INC·Filed 2020·Granted Apr 5, 2022·12 cites·30 claims
- 0396US10482899B2Coordination of beamformers for noise estimation and noise suppressionAPPLE INC·Filed 2016·Granted Nov 19, 2019·31 cites·29 claims
- 0496US8861356B2Method and apparatus for prioritized information delivery with network coding over time-varying network topologiesKOZAT ULAS C·Filed 2008·Granted Oct 14, 2014·92 cites·35 claims
- 0596US8705484B2Method for varying transmit power patterns in a multi-cell environmentCAIRE GIUSEPPE·Filed 2009·Granted Apr 22, 2014·59 cites·28 claims
- 0695US10013981B2Multi-microphone speech recognition systems and related techniquesAPPLE INC·Filed 2015·Granted Jul 3, 2018·26 cites·20 claims
- 0795US9516409B1Echo cancellation and control for microphone beam patternsAPPLE INC·Filed 2015·Granted Dec 6, 2016·19 cites·20 claims
- 0894US9412354B1Method and apparatus to use beams at one end-point to support multi-channel linear echo control at another end-pointAPPLE INC·Filed 2015·Granted Aug 9, 2016·14 cites·20 claims
- 0993US10636434B1Joint spatial echo and noise suppression with adaptive suppression criteriaAPPLE INC·Filed 2018·Granted Apr 28, 2020·14 cites·19 claims
- 1092US12317061B2Systems, methods, and graphical user interfaces for using spatialized audio during communication sessionsAPPLE INC·Filed 2022·Granted May 27, 2025·2 cites·45 claims
- 1191US8542640B2Inter-cell approach to operating wireless beam-forming and user selection/scheduling in multi-cell environments based on limited signaling between patterns of subsets of cellsRAMPRASHAD SEAN A·Filed 2009·Granted Sep 24, 2013·25 cites·22 claims
- 1291US8451951B2Channel classification and rate adaptation for SU-MIMO systemsCAIRE GIUSEPPE·Filed 2009·Granted May 28, 2013·25 cites·23 claims
- 1390US10381020B2Speech model-based neural network-assisted signal enhancementAPPLE INC·Filed 2017·Granted Aug 13, 2019·10 cites·21 claims
- 1489US12177643B1Spatial audio controllerAPPLE INC·Filed 2023·Granted Dec 24, 2024·1 cites·20 claims
- 1588US10187504B1Echo control based on state of a deviceAPPLE INC·Filed 2016·Granted Jan 22, 2019·8 cites·24 claims
- 1687US8229443B2Method of combined user and coordination pattern scheduling over varying antenna and base-station coordination patterns in a multi-cell environmentCAIRE GIUSEPPE·Filed 2009·Granted Jul 24, 2012·14 cites·26 claims
- 1786US10244314B2Audio adaptation to roomAPPLE INC·Filed 2017·Granted Mar 26, 2019·4 cites·25 claims
- 1886US9865265B2Multi-microphone speech recognition systems and related techniquesAPPLE INC·Filed 2015·Granted Jan 9, 2018·8 cites·19 claims
- 1986US6694474B2Channel coding with unequal error protection for multi-mode source coded informationAGERE SYSTEMS INC·Filed 2001·Granted Feb 17, 2004·36 cites·20 claims
- 2084US11721355B2Audio bandwidth reductionAPPLE INC·Filed 2022·Granted Aug 8, 2023·1 cites·20 claims
- 2184US8638746B2Method and apparatus for the joint design and operation of scheduling and transmission for downlink multi-user MIMO with reciprocity-based trainingPAPADOPOULOS HARALABOS·Filed 2011·Granted Jan 28, 2014·8 cites·27 claims
- 2283US10304462B2Multi-microphone speech recognition systems and related techniquesAPPLE INC·Filed 2018·Granted May 28, 2019·4 cites·33 claims
- 2383US10299039B2Audio adaptation to roomAPPLE INC·Filed 2017·Granted May 21, 2019·4 cites·24 claims
- 2483US9503815B2Perceptual echo gate approach and design for improved echo control to support higher audio and conversational qualityAPPLE INC·Filed 2014·Granted Nov 22, 2016·6 cites·25 claims
- 2582US10614812B2Multi-microphone speech recognition systems and related techniquesAPPLE INC·Filed 2019·Granted Apr 7, 2020·3 cites·29 claims
- 2682US8089970B2Method and apparatus for managing admission and routing in multi-hop 802.11 networks taking into consideration traffic shaping at intermediate hopsRAMPRASHAD SEAN A·Filed 2007·Granted Jan 3, 2012·12 cites·22 claims
- 2780US10614857B2Calibrating media playback channels for synchronized presentationAPPLE INC·Filed 2018·Granted Apr 7, 2020·3 cites·20 claims
- 2880US10313808B1Method and apparatus to sense the environment using coupled microphones and loudspeakers and nominal playbackAPPLE INC·Filed 2017·Granted Jun 4, 2019·4 cites·25 claims
- 2980US8339948B2Method for improving capacity in multi-hop wireless mesh networksRAMPRASHAD SEAN A·Filed 2006·Granted Dec 25, 2012·10 cites·20 claims
- 3080US7873514B2Method for quantizing speech and audio through an efficient perceptually relevant search of multiple quantization patternsNTT DOCOMO INC·Filed 2007·Granted Jan 18, 2011·11 cites·22 claims
- 3179US9048977B2Receiver terminal driven joint encoder and decoder mode adaptation for SU-MIMO systemsRAMPRASHAD SEAN A·Filed 2010·Granted Jun 2, 2015·6 cites·24 claims
- 3278US9363600B2Method and apparatus for improved residual echo suppression and flexible tradeoffs in near-end distortion and echo reductionAPPLE INC·Filed 2014·Granted Jun 7, 2016·4 cites·26 claims
- 3374US9516159B2System and method of double talk detection with acoustic echo and noise controlAPPLE INC·Filed 2015·Granted Dec 6, 2016·3 cites·21 claims
- 3473US8891656B2Low-complexity, rank extendable, codebook design and method for supporting precoding matrix feedback for multi-user and single-user MIMO systemsBENJEBBOUR ANASS·Filed 2012·Granted Nov 18, 2014·3 cites·19 claims
- 3573US2025080933A1Spatial Audio ControllerAPPLE INC·Filed 2024·Application pending·0 cites
- 3671US10454829B2Enhanced local access in mobile communications using small node devicesNTT DOCOMO INC·Filed 2017·Granted Oct 22, 2019·1 cites·9 claims
- 3767US9301073B2Systems and methods for determining the condition of multiple microphonesAPPLE INC·Filed 2013·Granted Mar 29, 2016·2 cites·23 claims
- 3867US7885809B2Quantization of speech and audio coding parameters using partial information on atypical subsequencesNTT DOCOMO INC·Filed 2006·Granted Feb 8, 2011·5 cites·46 claims
- 3965US10833994B2Enhanced local access in mobile communicationsISHII HIROYUKI·Filed 2012·Granted Nov 10, 2020·1 cites·9 claims
- 4065US9432787B2Systems and methods for determining the condition of multiple microphonesAPPLE INC·Filed 2016·Granted Aug 30, 2016·1 cites·18 claims
- 4164US11832077B2Spatial audio controllerAPPLE INC·Filed 2021·Granted Nov 28, 2023·0 cites·22 claims
- 4262US8855221B2Method and apparatus for iterative receiver structures for OFDM/MIMO systems with bit interleaved coded modulationPAPADOPOULOS HARALABOS·Filed 2009·Granted Oct 7, 2014·2 cites·22 claims
- 4360US2018336716A1Voice effects based on facial expressionsAPPLE INC·Filed 2018·Application pending·0 cites
- 4459US7899059B2Media delivery using quality of service differentiation within a media streamAGERE SYSTEMS INC·Filed 2003·Granted Mar 1, 2011·6 cites·29 claims
- 4558US11456006B2System and method for determining audio output device typeAPPLE INC·Filed 2021·Granted Sep 27, 2022·0 cites·21 claims
- 4658US9386371B2Psychoacoustic adaptive notch filteringAPPLE INC·Filed 2013·Granted Jul 5, 2016·1 cites·21 claims
- 4758US9344177B2Method and apparatus for the joint design and operation of ARQ protocols with user scheduling for use with multiuser MIMO in the downlink of wireless systemsSHIRANI-MEHR HOOMAN·Filed 2014·Granted May 17, 2016·0 cites·12 claims
- 4854US8972827B2Method and apparatus for the joint design and operation of ARQ protocols with user scheduling for use with multiuser MIMO in the downlink of wireless systemsNTT DOCOMO INC·Filed 2012·Granted Mar 3, 2015·0 cites·7 claims
- 4950US12283289B2Separating and rendering voice and ambience signals by offsetting impact of device movementsAPPLE INC·Filed 2021·Granted Apr 22, 2025·0 cites·16 claims
- 5050US9209878B2Codebook adaptation method, radio base station apparatus and user equipmentNTT DOCOMO INC·Filed 2013·Granted Dec 8, 2015·0 cites·9 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →