Assignee
TRX SYSTEMS INC
US·42 granted patents·296 citations·filing 2013–2022
Top patents by PatentIndex Score
42 records- 0197US10352707B2Collaborative creation of indoor mapsTRX SYSTEMS INC·Filed 2017·Granted Jul 16, 2019·21 cites·23 claims
- 0297US9733091B2Collaborative creation of indoor mapsTRX SYSTEMS INC·Filed 2014·Granted Aug 15, 2017·46 cites·35 claims
- 0397US9395190B1Crowd sourced mapping with robust structural featuresTRX SYSTEMS INC·Filed 2015·Granted Jul 19, 2016·30 cites·20 claims
- 0495US9146113B1System and method for localizing a trackee at a location and mapping the location using transitionsTRX SYSTEMS INC·Filed 2014·Granted Sep 29, 2015·38 cites·24 claims
- 0595US8751151B2System and method for localizing a trackee at a location and mapping the location using inertial sensor informationTRX SYSTEMS INC·Filed 2013·Granted Jun 10, 2014·35 cites·25 claims
- 0694US11199412B2Collaborative creation of indoor mapsTRX SYSTEMS INC·Filed 2018·Granted Dec 14, 2021·10 cites·24 claims
- 0794US9671224B2Methods resolving the elevation of a tracked personnel or assetsTRX SYSTEMS INC·Filed 2013·Granted Jun 6, 2017·18 cites·38 claims
- 0892US10012502B2Methods resolving the elevation of a tracked personnel or assetsTRX SYSTEMS INC·Filed 2017·Granted Jul 3, 2018·6 cites·20 claims
- 0992US9322648B1Reducing elevation error with environmental pressure anomaly compensationTRX SYSTEMS INC·Filed 2015·Granted Apr 26, 2016·11 cites·20 claims
- 1090US11836857B2Methods for generating and updating building modelsTRX SYSTEMS INC·Filed 2022·Granted Dec 5, 2023·1 cites·28 claims
- 1190US9759561B2Heading constraints in a particle filterTRX SYSTEMS INC·Filed 2015·Granted Sep 12, 2017·9 cites·17 claims
- 1290US9664521B2System and method for localizing a trackee at a location and mapping the location using signal-based featuresTRX SYSTEMS INC·Filed 2014·Granted May 30, 2017·16 cites·22 claims
- 1388US9983012B2Crowd sourced mapping with robust structural featuresTRX SYSTEMS INC·Filed 2016·Granted May 29, 2018·6 cites·20 claims
- 1488US9823068B2Reducing elevation error with environmental pressure anomaly compensationTRX SYSTEMS INC·Filed 2016·Granted Nov 21, 2017·6 cites·19 claims
- 1586US11960011B2System and method for validating GNSS location inputTRX SYSTEMS INC·Filed 2021·Granted Apr 16, 2024·2 cites·20 claims
- 1684US11156464B2Crowd sourced mapping with robust structural featuresTRX SYSTEMS INC·Filed 2018·Granted Oct 26, 2021·4 cites·28 claims
- 1784US10627230B1Methods for resolving a location of tracked personnel or assets based on elevation or terrain constraintsTRX SYSTEMS INC·Filed 2019·Granted Apr 21, 2020·2 cites·30 claims
- 1883US10805595B2Mapping and tracking system with features in three-dimensional spaceTRX SYSTEMS INC·Filed 2018·Granted Oct 13, 2020·2 cites·19 claims
- 1982US11443483B2Validating and updating building models with path dataTRX SYSTEMS INC·Filed 2020·Granted Sep 13, 2022·1 cites·20 claims
- 2082US10401168B2Methods resolving the elevation of a tracked personnel or assetsTRX SYSTEMS INC·Filed 2017·Granted Sep 3, 2019·2 cites·39 claims
- 2181US10852145B2Crowd sourced mapping with robust structural featuresTRX SYSTEMS INC·Filed 2018·Granted Dec 1, 2020·2 cites·27 claims
- 2281US10571270B2Fusion of sensor and map data using constraint based optimizationTRX SYSTEMS INC·Filed 2017·Granted Feb 25, 2020·2 cites·31 claims
- 2380US10740965B2Mapping complex building modelsTRX SYSTEMS INC·Filed 2019·Granted Aug 11, 2020·2 cites·19 claims
- 2480US9441973B2Irregular feature mappingTRX SYSTEMS INC·Filed 2013·Granted Sep 13, 2016·5 cites·16 claims
- 2579US10393542B2Methods for improved heading estimationTRX SYSTEMS INC·Filed 2017·Granted Aug 27, 2019·2 cites·20 claims
- 2679US9746327B2Fusion of sensor and map data using constraint based optimizationTRX SYSTEMS INC·Filed 2013·Granted Aug 29, 2017·4 cites·35 claims
- 2779US8930163B2Method for step detection and gait direction estimationTRX SYSTEMS INC·Filed 2013·Granted Jan 6, 2015·6 cites·18 claims
- 2876US10750155B2Mapping and tracking system with features in three-dimensional spaceTRX SYSTEMS INC·Filed 2018·Granted Aug 18, 2020·1 cites·12 claims
- 2972US11989828B2Methods for generating and updating building modelsTRX SYSTEMS INC·Filed 2021·Granted May 21, 2024·0 cites·19 claims
- 3069US11140379B2Mapping and tracking system with features in three-dimensional spaceTRX SYSTEMS INC·Filed 2020·Granted Oct 5, 2021·0 cites·16 claims
- 3169US10215587B2Method for step detection and gait direction estimationTRX SYSTEMS INC·Filed 2013·Granted Feb 26, 2019·2 cites·24 claims
- 3268US9739635B2Methods for improved heading estimationTRX SYSTEMS INC·Filed 2013·Granted Aug 22, 2017·2 cites·17 claims
- 3368US9297658B2Wi-Fi enhanced tracking algorithmsTRX SYSTEMS INC·Filed 2013·Granted Mar 29, 2016·1 cites·20 claims
- 3467US10612921B2Methods for resolving a location of tracked personnel or assets and refining path dataTRX SYSTEMS INC·Filed 2019·Granted Apr 7, 2020·0 cites·16 claims
- 3567US10088313B2Particle filter based heading correctionTRX SYSTEMS INC·Filed 2017·Granted Oct 2, 2018·1 cites·20 claims
- 3666US10598487B2Methods resolving a location of tracked personnel or assets based on elevationTRX SYSTEMS INC·Filed 2019·Granted Mar 24, 2020·0 cites·22 claims
- 3763US11359921B2Crowd sourced mapping with robust structural featuresTRX SYSTEMS INC·Filed 2019·Granted Jun 14, 2022·0 cites·21 claims
- 3860US12517260B2Systems and methods for redundant integrity monitoringTRX SYSTEMS INC·Filed 2022·Granted Jan 6, 2026·0 cites·13 claims
- 3958US10393543B2Methods for improved heading estimationTRX SYSTEMS INC·Filed 2017·Granted Aug 27, 2019·0 cites·18 claims
- 4057US11268818B2Crowd sourced mapping with robust structural featuresTRX SYSTEMS INC·Filed 2019·Granted Mar 8, 2022·0 cites·24 claims
- 4156US9778044B2Irregular feature mappingTRX SYSTEMS INC·Filed 2016·Granted Oct 3, 2017·0 cites·20 claims
- 4249US8990014B2Method to scale inertial location data using directional and/or scale confidence constraintsTRX SYSTEMS INC·Filed 2014·Granted Mar 24, 2015·0 cites·20 claims
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