NAVIGATION APPARATUS, MAP DISPLAY METHOD AND MAP DISPLAY PROGRAM
1 Assignment
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Accused Products
Abstract
A navigation apparatus, which is mounted on a movable body such as a vehicle, displays a map around a present position in plural display modes which a user can designate. The map data is prepared in each display mode to be stored in a storage unit. For example, the present position of the movable body is detected by a unit such as a GPS. Then, based on the present position, a base link which is used as a basis of a display mode change is determined. Basically, the map is displayed in the display mode designated by the user. However, when the map data corresponding to the display mode designated by the user does not include the base link, the map is displayed in the display mode corresponding to the map data including the base link. The base link can be a link corresponding to the present position of the vehicle, or a scheduled travel link on a guide route.
25 Citations
16 Claims
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1-8. -8. (canceled)
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9. A navigation apparatus for a movable body, comprising:
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a storage unit which stores map data prepared for each display mode; a present position detection unit which detects a present position of the movable body; a base link determination unit which determines a base link, which is used as a basis of a display mode change, based on the present position; and a map display unit which displays a map in a display mode designated by a user, wherein, when map data corresponding to the display mode designated by the user does not include the base link, the map display unit displays a map in the display mode corresponding to the map data including the base link. - View Dependent Claims (10, 11, 12, 13)
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14. A map display method in a navigation apparatus for a movable body including map data for each display mode, comprising:
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a present position detection process which detects a present position of the movable body; a base link determination process which determines a base link which is used as a basis of a display mode change, based on the present position; and a map display process which displays a map in a display mode designated by a user, wherein, when map data corresponding to the display mode designated by the user does not include the base link, the map display process displays a map in the display mode corresponding to the map data including the base link.
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15. A computer program product in a computer-readable medium for map display executed in a navigation apparatus for a movable body including a computer, making the computer function as:
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a storage unit which stores map data prepared for each display mode; a present position detection unit which detects a present position of the movable body; a base link determination unit which determines a base link which is used as a basis of a display mode change, based on the present position; and a map display unit which displays a map in a display mode designated by a user, wherein, when the map data corresponding to the display mode designated by the user does not include the base link, the map display unit displays a map in a display mode corresponding to the map data including the base link. - View Dependent Claims (16)
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Specification