School bus locator system

Secure notification messaging systems and methods using...

Secure notification messaging systems and methods using...

Secure notification messaging systems and methods using...

Security tracker

Signal message transmitting system for a succession of mobile un

Stop list generation systems and methods based upon tracked...

System and method for controlling public transportation

System and method for controlling public transportation

System and method for efficiently notifying users of...

System and method for locating a travelling vehicle

System and method for monitoring and reporting out-of-route mile

System and method for using impulse radio technology to...

System for informing users about urban transport

System for processing digital map data

Systems for informing users about waiting times for buses at sto