Navigation system
First Claim
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1. A navigation system that displays a map and a vehicle position mark on a display screen, comprising:
- a position measurement unit that detects the vehicle position;
a monitoring unit that monitors whether the vehicle position deviates from a road so as to be in an off-road state;
a travel trail generating unit that generates off-road travel trail data, when the vehicle is in the off-road state; and
a storage unit that stores the travel trail data.
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Abstract
A travel state monitoring unit monitors whether the vehicle position deviates from a road so as to be in the off-road travel state, on the basis of the map information and the vehicle position. When the vehicle position is in the off-road state, a travel trail generating unit generates off-road travel trail data and stores the data in an off-road travel trail storage unit. A display control unit displays, by the user'"'"'s instruction, the off-road travel trail superimposed with the map, using the off-road travel trail data. The route search unit searches a route to an off-road point and displays the route.
97 Citations
27 Claims
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1. A navigation system that displays a map and a vehicle position mark on a display screen, comprising:
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a position measurement unit that detects the vehicle position;
a monitoring unit that monitors whether the vehicle position deviates from a road so as to be in an off-road state;
a travel trail generating unit that generates off-road travel trail data, when the vehicle is in the off-road state; and
a storage unit that stores the travel trail data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of operating a navigation system that displays a map and a vehicle position mark on a display screen, comprising:
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detecting the vehicle position;
monitoring whether the vehicle position deviates from a road so as to be in an off-road state;
generating off-road travel trail data, when the vehicle is in the off-road state; and
storing the travel trail data. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification