NAVIGATION DEVICE
First Claim
1. A navigation device comprising:
- a map database holding map data;
a position and heading measuring unit for measuring a current position;
a video image acquiring unit for acquiring a video image;
a last shot determining unit for, when a distance from the current position acquired by said position and heading measuring unit to a guidance object is equal to or shorter than a fixed distance and a distance from a current position calculated on a basis of map data acquired from the map database to the guidance object is equal to or shorter than the fixed distance, determining to switch to a last shot mode in which a video image acquired by said video image acquiring unit at that time is fixedly and continuously outputted;
a video image storage unit for storing, as a last shot video image, a video image acquired by said video image acquiring unit at a time when said last shot determining unit determines to switch to the last shot mode;
a video image composite processing unit for reading the last shot video image stored in said video image storage unit, and for superimposing a content including a graphic, a character string or an image for explaining the guidance object existing in said last shot video image on said read last shot video image to generate a composite video image; and
a display unit for displaying the composite video image generated by said video image composite processing unit.
1 Assignment
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Accused Products
Abstract
A navigation device includes a last shot determining unit 6 for, when a distance from the current position to a guidance object is equal to or shorter than a fixed distance and a distance from a current position calculated on the basis of map data to the guidance object is equal to or shorter than the fixed distance, determining to switch to a last shot mode, a video image storage unit 11 for storing, as a last shot video image, a video image acquired by a video image acquiring unit 10 at the time when it is determined to switch to the last shot mode, a video image composite processing unit 24 for superimposing a content existing in the stored last shot video image on the last shot video image to generate a composite video image, and a display unit 13 for displaying the composite video image.
33 Citations
8 Claims
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1. A navigation device comprising:
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a map database holding map data; a position and heading measuring unit for measuring a current position; a video image acquiring unit for acquiring a video image; a last shot determining unit for, when a distance from the current position acquired by said position and heading measuring unit to a guidance object is equal to or shorter than a fixed distance and a distance from a current position calculated on a basis of map data acquired from the map database to the guidance object is equal to or shorter than the fixed distance, determining to switch to a last shot mode in which a video image acquired by said video image acquiring unit at that time is fixedly and continuously outputted; a video image storage unit for storing, as a last shot video image, a video image acquired by said video image acquiring unit at a time when said last shot determining unit determines to switch to the last shot mode; a video image composite processing unit for reading the last shot video image stored in said video image storage unit, and for superimposing a content including a graphic, a character string or an image for explaining the guidance object existing in said last shot video image on said read last shot video image to generate a composite video image; and a display unit for displaying the composite video image generated by said video image composite processing unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification