A communication base station has: base station position information storing means; signal electric wave for communication with sending time information generating means; satellite time information generating means; time difference information generating means for generating the time difference information...http://www.google.fr/patents/US7409187?utm_source=gb-gplus-shareBrevet US7409187 - Positioning system, terminal device, control method of terminal device, control program of terminal device, and computer readable recording medium recording control program of terminal device
Positioning system, terminal device, control method of terminal device ...
