Navigation device
First Claim
1. A navigation device comprising:
- map drawing means for drawing a map image in a predetermined reduced scale;
a display unit for displaying the map image drawn by said map drawing means;
designation means for designating an arbitrary road which is included in said map image displayed by the display unit in accordance with a user'"'"'s operation; and
road selection means for variably setting a section of the road designated by said designation means in accordance with said reduced scale to select said set section of the road.
1 Assignment
0 Petitions
Accused Products
Abstract
A navigation device is provided for easily designating a road to be avoided with high accuracy. When a location on a map is designated by a touch panel 7, an avoidance-road setting unit 22 identifies a road existing at or near the location designated, and specifies a link corresponding to the road. Then a map drawing unit 14 draws a map image in a reduced scale larger than that previously set. If another location on the map is designated, the process of specifying the link and the process of drawing the map image in the larger reduced scale, which are described above, are repeated. When there is provided an instruction to set the road specified based on the location as an avoidance road, the avoidance-road setting unit 22 stores a link ID of the link corresponding to the specified road in an avoidance-road memory 24.
39 Citations
16 Claims
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1. A navigation device comprising:
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map drawing means for drawing a map image in a predetermined reduced scale;
a display unit for displaying the map image drawn by said map drawing means;
designation means for designating an arbitrary road which is included in said map image displayed by the display unit in accordance with a user'"'"'s operation; and
road selection means for variably setting a section of the road designated by said designation means in accordance with said reduced scale to select said set section of the road. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a vehicle navigation device, comprising:
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providing map data for drawing a map image in a plurality of reduced scales;
displaying a map image in one of the reduced scales;
receiving from a user a designation of a road included in the displayed map image; and
variably setting a section of the designated road in accordance with the reduced scale of the displayed map image. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification