Inventor · disambiguated record
Martin E. Johnson
Also filed as: JOHNSON MARTIN · JOHNSON MARTIN E
99 granted patents·10 pending applications·1,178 citations·filing 1994–2025
99Inventor score
Top patents by PatentIndex Score
109 records- 0198US11432095B1Placement of virtual speakers based on room layoutAPPLE INC·Filed 2020·Granted Aug 30, 2022·20 cites·20 claims
- 0298US9900723B1Multi-channel loudspeaker matching using variable directivityAPPLE INC·Filed 2014·Granted Feb 20, 2018·169 cites·27 claims
- 0398US9723420B2System and method for robust simultaneous driver measurement for a speaker systemAPPLE INC·Filed 2014·Granted Aug 1, 2017·127 cites·30 claims
- 0497US11399255B2Adjusting the beam pattern of a speaker array based on the location of one or more listenersAPPLE INC·Filed 2021·Granted Jul 26, 2022·5 cites·20 claims
- 0597US11290805B2Loudspeaker with reduced audio coloration caused by reflections from a surfaceAPPLE INC·Filed 2020·Granted Mar 29, 2022·6 cites·19 claims
- 0697US11100349B2Audio assisted enrollmentAPPLE INC·Filed 2019·Granted Aug 24, 2021·30 cites·60 claims
- 0796US11375333B1Spatial audio reproduction based on head-to-torso orientationAPPLE INC·Filed 2020·Granted Jun 28, 2022·6 cites·23 claims
- 0896US10061009B1Robust confidence measure for beamformed acoustic beacon for device tracking and localizationAPPLE INC·Filed 2015·Granted Aug 28, 2018·25 cites·20 claims
- 0996US10021506B2Adjusting the beam pattern of a speaker array based on the location of one or more listenersAPPLE INC·Filed 2014·Granted Jul 10, 2018·38 cites·22 claims
- 1096US10015584B2Loudspeaker with reduced audio coloration caused by reflections from a surfaceAPPLE INC·Filed 2017·Granted Jul 3, 2018·16 cites·20 claims
- 1196US8879761B2Orientation-based audioJOHNSON MARTIN E·Filed 2011·Granted Nov 4, 2014·318 cites·21 claims
- 1295US11726161B1Acoustic identification of audio productsAPPLE INC·Filed 2021·Granted Aug 15, 2023·4 cites·26 claims
- 1395US10652650B2Loudspeaker with reduced audio coloration caused by reflections from a surfaceAPPLE INC·Filed 2015·Granted May 12, 2020·13 cites·26 claims
- 1495US10524080B1System to move a virtual sound away from a listener using a crosstalk cancelerAPPLE INC·Filed 2018·Granted Dec 31, 2019·21 cites·20 claims
- 1595US9516409B1Echo cancellation and control for microphone beam patternsAPPLE INC·Filed 2015·Granted Dec 6, 2016·19 cites·20 claims
- 1695US8811648B2Moving magnet audio transducerPANCE ALEKSANDAR·Filed 2011·Granted Aug 19, 2014·35 cites·14 claims
- 1794US10771742B1Devices with enhanced audioAPPLE INC·Filed 2019·Granted Sep 8, 2020·6 cites·15 claims
- 1894US9762999B1Modal based architecture for controlling the directivity of loudspeaker arraysAPPLE INC·Filed 2015·Granted Sep 12, 2017·23 cites·20 claims
- 1994US5542777AFastener for composite structuresMARTIN MARIETTA CORP·Filed 1994·Granted Aug 6, 1996·93 cites·17 claims
- 2093US11417347B2Binaural room impulse response for spatial audio reproductionAPPLE INC·Filed 2021·Granted Aug 16, 2022·3 cites·20 claims
- 2192US12317061B2Systems, methods, and graphical user interfaces for using spatialized audio during communication sessionsAPPLE INC·Filed 2022·Granted May 27, 2025·2 cites·45 claims
- 2292US12131097B2Spatial management of audioAPPLE INC·Filed 2023·Granted Oct 29, 2024·1 cites·33 claims
- 2392US12009877B1Modification of signal attenuation relative to distance based on signal characteristicsAPPLE INC·Filed 2020·Granted Jun 11, 2024·3 cites·20 claims
- 2492US10979806B1Audio system having audio and ranging componentsAPPLE INC·Filed 2019·Granted Apr 13, 2021·9 cites·22 claims
- 2592US10178490B1Intelligent audio rendering for video recordingAPPLE INC·Filed 2017·Granted Jan 8, 2019·12 cites·20 claims
- 2691US11265653B2Audio system with configurable zonesAPPLE INC·Filed 2020·Granted Mar 1, 2022·3 cites·26 claims
- 2791US10798511B1Processing of audio signals for spatial audioAPPLE INC·Filed 2019·Granted Oct 6, 2020·13 cites·19 claims
- 2890US12513485B2Spatial audio reproduction based on head-to-torso orientationAPPLE INC·Filed 2024·Granted Dec 30, 2025·1 cites·20 claims
- 2990US11595754B1Personalized headphone EQ based on headphone properties and user geometryAPPLE INC·Filed 2020·Granted Feb 28, 2023·3 cites·20 claims
- 3090US11115773B1Audio system and method of generating an HRTF mapAPPLE INC·Filed 2019·Granted Sep 7, 2021·10 cites·20 claims
- 3190US10609484B2Audio system with configurable zonesAPPLE INC·Filed 2017·Granted Mar 31, 2020·7 cites·24 claims
- 3290US10063984B2Method for creating a virtual acoustic stereo system with an undistorted acoustic centerAPPLE INC·Filed 2015·Granted Aug 28, 2018·11 cites·22 claims
- 3389US12177643B1Spatial audio controllerAPPLE INC·Filed 2023·Granted Dec 24, 2024·1 cites·20 claims
- 3489US12003954B2Audio system and method of determining audio filter based on device positionAPPLE INC·Filed 2022·Granted Jun 4, 2024·2 cites·20 claims
- 3589US10880649B2System to move sound into and out of a listener's head using a virtual acoustic systemAPPLE INC·Filed 2018·Granted Dec 29, 2020·10 cites·11 claims
- 3689US10402151B2Devices with enhanced audioAPPLE INC·Filed 2017·Granted Sep 3, 2019·5 cites·17 claims
- 3788US11818535B2Loudspeaker with reduced audio coloration caused by reflections from a surfaceAPPLE INC·Filed 2022·Granted Nov 14, 2023·1 cites·19 claims
- 3888US9859858B2Correction of unknown audio contentAPPLE INC·Filed 2016·Granted Jan 2, 2018·6 cites·20 claims
- 3987US11315277B1Device to determine user-specific HRTF based on combined geometric dataAPPLE INC·Filed 2019·Granted Apr 26, 2022·7 cites·20 claims
- 4086US10264383B1Multi-listener stereo image arrayAPPLE INC·Filed 2016·Granted Apr 16, 2019·6 cites·20 claims
- 4185US12413922B1Method and system for processing head-related transfer functionsAPPLE INC·Filed 2022·Granted Sep 9, 2025·1 cites·22 claims
- 4285US11429342B2Spatial management of audioAPPLE INC·Filed 2021·Granted Aug 30, 2022·1 cites·33 claims
- 4384US11832082B2Self-calibrating microphone and loudspeaker arrays for wearable audio devicesAPPLE INC·Filed 2021·Granted Nov 28, 2023·1 cites·21 claims
- 4483US8942410B2Magnetically biased electromagnet for audio applicationsAPPLE INC·Filed 2012·Granted Jan 27, 2015·7 cites·20 claims
- 4583US2025068383A1Devices with enhanced audioAPPLE INC·Filed 2024·Application pending·0 cites
- 4682US12010494B1Audio system to determine spatial audio filter based on user-specific acoustic transfer functionAPPLE INC·Filed 2019·Granted Jun 11, 2024·5 cites·21 claims
- 4782US11190896B1System and method of determining head-related transfer function parameter based on in-situ binaural recordingsAPPLE INC·Filed 2019·Granted Nov 30, 2021·4 cites·20 claims
- 4882US9949032B1Directivity speaker arrayAPPLE INC·Filed 2016·Granted Apr 17, 2018·4 cites·19 claims
- 4982US9107003B2Extended duct with damping for improved speaker performanceDIX GORDON R·Filed 2011·Granted Aug 11, 2015·11 cites·29 claims
- 5081US12317028B2Speaker driver arrangement for implementing cross-talk cancellationAPPLE INC·Filed 2022·Granted May 27, 2025·1 cites·21 claims
Showing the top 50 of 109 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →