Patent ID: 6839630

Claim:
A navigation system for guiding a user from a starting point to a destination point, said navigation system comprising: a main device to be fixed to a vehicle; and a sub-device operable to communicate with said main device, said sub-device being portable by the user, wherein said main device comprises: a receiving unit for receiving at least information about the destination point; a first generating unit for generating vehicle guide image data for the vehicle representing a guide image for guiding the vehicle; a first displaying unit for displaying the guide image represented by the vehicle guide image data generated by said first generating unit; an input unit for generating, in response to an operation by the user, a signal indicative of timing when the user gets off the vehicle; a determining unit for determining whether the user gets off the vehicle, said determining unit determining that the user gets off the vehicle when the signal is received; and a generating/transferring unit for generating, when said determining unit determines that the user gets off the vehicle, navigation data including at least the destination point received by said receiving unit, and transferring the navigation data to said sub-device, and said sub-device comprises: a second generating unit for generating guide image data for outside of the vehicle representing a guide image for guiding the user traveling outside of the vehicle based on the navigation data transferred from said generating/transferring unit; and a second display unit for displaying the guide image represented by the guide image data for outside of the vehicle generated by said second generating unit.