1
Takashi Yamada: Route searching system of navigation apparatus. Aisin AW, Kabushiki Kaisha Shinsangyokaihatsu, Varndell Legal Group, May 15, 1990: US04926336 (172 worldwide citation)

A route searching system having node data 3 representing information on positions and attributes of the same, intersection data 1 representing information on intersections, road data 2 representing information on roads, and a route searching section 4 for searching for the optimum route from the int ...


2
Yamada Takashi C O Aisin Aw Co: Route searching system of navigation apparatus.. Aisin AW, Shinsangyo Kaihatsu, July 5, 1989: EP0323229-A2 (9 worldwide citation)

A route searching system has node data (3) representing information on positions and attributes of the same, intersection data (1) representing information on intersections, road data (2) representing information on roads, and a route searching section (4)for searching for the optimum route from the ...