Patent ID: 8655580

Claim:
A system comprising a transmitting apparatus and a receiving apparatus, the transmitting apparatus storing a first digital map including a first road section and the receiving apparatus storing a second digital map including a second road section, the transmitting apparatus comprising: a position information generating unit that generates position information, wherein the position information includes coordinates information, which represents the first road section, the first road section including a plurality of nodes, and further includes reference point relative position information which indicates a first reference point on the first road section by relative position from one of the nodes on the first road section and target position relative coordinates information which indicates a first target position outside of the first road section by relative coordinates from coordinates of the first reference point on the first road section; and a transmitting unit that transmits the generated position information to the receiving apparatus; and the receiving apparatus comprising: a receiving unit that receives the generated position information; and an identifying unit that identifies a second reference point on the second digital map corresponding to the first reference point on the first digital map by using the reference point relative position information and identifies a second target position on the second digital map corresponding to the first target position by using the identified second reference point and the target position relative coordinates information.