Navigation device and navigation method

Abstract

An object of the present invention is to provide navigation device and method, which are capable of preventing a user from erroneously recognizing a region, through which the user moves, while suppressing annoyance to the user, which follows guidance of a border. The navigation device according to the present invention includes: prefectural border detection means as border detector that searches front of a vehicle as a mobile body in a traveling direction on a map, and detects a plurality of borders (prefectural borders) on the map; and guidance means as border guidance unit that collectively guides the plurality of borders (prefectural borders) present in a predetermined range to the user based on a detection result in the prefectural border detection means.

Dependencies are inferred from the claim text.