RFID USID Combination of ultrasound and radio
for precise fast multi-point 3D and 2D positioning and localization. Wireless systems, for
variety of positioning
and locating application, using only three basic components.
Hexamite third generation: General Purpose
Multi-Point and Multi-Dimensional High-Speed ultrasonic positioning system.
Ultrasonic tracking and guidance for a small indoor
operation or wide area coverage spanning thousands of square meters.