초록 ▼

A first external storage device which may be a CD stores data representing standard map of a particular area and that required for guidance, and a second external storage device which may be an IC card stores individual data which cannot be complemented by said data representing the standard map and

A first external storage device which may be a CD stores data representing standard map of a particular area and that required for guidance, and a second external storage device which may be an IC card stores individual data which cannot be complemented by said data representing the standard map and said guidance data. Since the data is stored in both CD and IC card, the number of data can be reduced. This makes the operation simpler and enables a data that meets the demand of a user to be selectively supplied to the user. In consequence, guided navigation is made possible from any starting point to a destination, and data updating can be made relatively easy.

대표청구항 ▼

A navigation system for a vehicle comprising: input means for inputting a starting point and destination; a present position means for determining a present position of said vehicle; a first external storage means for storing first guidance data including road and intersection data; a second externa

A navigation system for a vehicle comprising: input means for inputting a starting point and destination; a present position means for determining a present position of said vehicle; a first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data associated with a smaller geographic area when compared to said guidance data; output means for outputting guidance information, including a display means for displaying visual information; and CPU means for receiving said first and second guidance data from said first and second external storage means, setting a guide route based on said starting point and said destination including supplementing said first guidance data by said second guidance data, and outputting said guide route as said guidance information together with said present position data via said output means.