TRX is entirely focused on delivering accurate indoor location through sensor fusion, ranging, and mapping technologies. The approaches TRX has implemented are unique, and allow for ubiquitous location when you are operating in buildings that are difficult or impossible to instrument, and where significant time spent "mapping" a building may not be possible.
Maintaining strong IP protection for our technology is important for our distribution partners and for application partners who integrate TRX location services as part of their overall solutions set.
TRX has recently been issued two new patents from the United States :
TRX was also issued a patent in Hong Kong and in Australia on our methods for 3D tracking and mapping which form the basis for our Feature SLAM work. TRX now has a total of 12 US and 12 international patents, covering GPS-denied and indoor mapping and location determination.
TRX's patents cover methods for 3D tracking and mapping, including sensor fusion for motion classification and drift estimation, mapping (signature mapping - both signal strength and magnetic - and structural inference based on a tracked user’s movement) and map-based corrections. Later TRX patents build on these foundational patents, adding improvements, including tracking of moving cellular devices, heading corrections using building constraints and occasional good magnetic sensor data, sensor fusion for robust elevation determination indoors and outdoors, and automatic sensor calibration. These later patents also enhance TRX's map inference methods, adding unique feature descriptors (including unique structure and signal information) that enable our methods for automated map fusion.
The methods covered by TRX's patent portfolio provide benefit to improved location and mapping in the following areas: