Inventor
KARVOUNIS JOHN
US26 patents
Patents
26 patentsUS9733091B2Aug 15, 2017
Collaborative creation of indoor maps
TRX SYSTEMS INC46 citations97
US10352707B2Jul 16, 2019
Collaborative creation of indoor maps
TRX SYSTEMS INC21 citations93
US9671224B2Jun 6, 2017
Methods resolving the elevation of a tracked personnel or assets
TRX SYSTEMS INC18 citations92
US11199412B2Dec 14, 2021
Collaborative creation of indoor maps
TRX SYSTEMS INC10 citations85
US10012502B2Jul 3, 2018
Methods resolving the elevation of a tracked personnel or assets
TRX SYSTEMS INC6 citations84
US9759561B2Sep 12, 2017
Heading constraints in a particle filter
TRX SYSTEMS INC9 citations84
US9746327B2Aug 29, 2017
Fusion of sensor and map data using constraint based optimization
TRX SYSTEMS INC4 citations83
US9823068B2Nov 21, 2017
Reducing elevation error with environmental pressure anomaly compensation
TRX SYSTEMS INC6 citations82
US9441973B2Sep 13, 2016
Irregular feature mapping
TRX SYSTEMS INC5 citations82
US9322648B1Apr 26, 2016
Reducing elevation error with environmental pressure anomaly compensation
TRX SYSTEMS INC11 citations82
US10627230B1Apr 21, 2020
Methods for resolving a location of tracked personnel or assets based on elevation or terrain constraints
TRX SYSTEMS INC2 citations73
US10401168B2Sep 3, 2019
Methods resolving the elevation of a tracked personnel or assets
TRX SYSTEMS INC2 citations73
US10393542B2Aug 27, 2019
Methods for improved heading estimation
TRX SYSTEMS INC2 citations73
US9739635B2Aug 22, 2017
Methods for improved heading estimation
TRX SYSTEMS INC2 citations73
US10571270B2Feb 25, 2020
Fusion of sensor and map data using constraint based optimization
TRX SYSTEMS INC2 citations72
US11836857B2Dec 5, 2023
Methods for generating and updating building models
TRX SYSTEMS INC1 citations71
US11443483B2Sep 13, 2022
Validating and updating building models with path data
TRX SYSTEMS INC1 citations71
US10740965B2Aug 11, 2020
Mapping complex building models
TRX SYSTEMS INC2 citations71
US11989828B2May 21, 2024
Methods for generating and updating building models
TRX SYSTEMS INC0 citations60
US10612921B2Apr 7, 2020
Methods for resolving a location of tracked personnel or assets and refining path data
TRX SYSTEMS INC0 citations52
US10598487B2Mar 24, 2020
Methods resolving a location of tracked personnel or assets based on elevation
TRX SYSTEMS INC0 citations52
US10393543B2Aug 27, 2019
Methods for improved heading estimation
TRX SYSTEMS INC0 citations52
US10088313B2Oct 2, 2018
Particle filter based heading correction
TRX SYSTEMS INC1 citations51
US9778044B2Oct 3, 2017
Irregular feature mapping
TRX SYSTEMS INC0 citations50
US12517260B2Jan 6, 2026
Systems and methods for redundant integrity monitoring
TRX SYSTEMS INC0 citations45
US8990014B2Mar 24, 2015
Method to scale inertial location data using directional and/or scale confidence constraints
TRX SYSTEMS INC0 citations41