Patent ID: 7536415

Claim:
An information providing method for allowing communication between a vehicle and a fixed station in which a first information registration apparatus is placed in the vehicle at a plant where the vehicle is manufactured, a second information registration apparatus is placed in the vehicle at a sales shop where the vehicle is sold, a movable-body identification information is issued at the time the vehicle is sold, a communication unit identification information is issued at the time a communication unit is manufactured, and a user identification information is issued to a user who owns the vehicle, the information providing method comprising: sending the movable-body identification information, capable of uniquely identifying the vehicle, from the first information registration apparatus to the fixed station; sending the communication unit identification information, capable of uniquely identifying the communication unit, from the first information registration apparatus to the fixed station; sending, in a mutually related manner, the user identification information, capable of identifying a user who owns the vehicle, and the movable-body identification information, from the second information registration apparatus to the fixed station; creating a vehicle-specific holder in the fixed station, by using the movable-body identification information sent from the first information registration apparatus; registering in the vehicle-specific holder the movable-body identification information and the communication unit identification information sent from the first information registration apparatus and the vehicle-specific holder the user identification information sent from the second information registration apparatus in a mutually related manner; authenticating the vehicle through the fixed station whenever a request for information, containing an identification information, is sent from the vehicle by comparing the identification information sent from the vehicle with the corresponding identification information registered in the vehicle-specific holder, wherein the identification information consists of at least one of the movable-body identification information, the communication unit identification information, and the user identification information; and providing a predetermined piece of information to the vehicle on the basis of the request information when the vehicle is authenticated.