Map e.g. digital map, data referencing method for navigation system, involves storing map data of server in memory and map data of client in another memory, where server stays in bidirectional communication with client for exchanging data

摘要

The method involves storing a map data of a server (2) in a memory (7) and a map data of a client (3) in another memory, where the server stays in bidirectional communication with the client for exchanging the data. The server determines the differences between the map data of the server and that of the client. The server transmits or receives a data set of an accuracy and/or a probability of correlation of a reference to a position by using the client. An independent claim is also included for a navigation system comprising a server with a map data.