In a location confirmation system, one navigation terminal connects a line to an information center to transmit timing information, and the information center identifies other navigation terminals for exchanging information indicating current locations to transmit the timing information to them. Thereafter, other navigation terminals having received the timing information and one navigation terminal transmit and receive the information indicating each current location at almost equal timing in accordance with the timing information.

 
Web www.patentalert.com

< Method and apparatus for automatically generating a SCADA system

< Small-scale, integrated vehicle telematics device

> Geometric model database for use in ubiquitous computing

> System and method for selectively providing information to a user device

~ 00214