Provided is a navigation system capable of matching map information used by a navigation apparatus and a navigation server with an appropriate frequency and at an appropriate timing. When there is differential information between the navigation map information and the support map information, index information for identifying the differential information is transmitted from the navigation server to the navigation apparatus and the navigation apparatus outputs preliminary information indicating a brief summary of the differential information generated according to the index information. When a request signal based on a request operation by a user in the navigation apparatus is transmitted from the navigation apparatus to the navigation server, the differential information is transmitted form the navigation server to the navigation apparatus, so that the navigation map information is updated in accordance with the differential information.
Navigation server, navigation apparatus, and navigation system
2016-03-15
Patent
Electronic Resource
English
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