Map display device and map display method
First Claim
1. A map display device that displays a map image around a vehicle position, the display device comprising:
- a display unit;
a first storage unit configured to store map data including road data of at least one road and road-related information corresponding to the at least one road;
a second storage unit, separate and independent from the first storage unit, configured to store adjustment data defining a relationship between a display position of the road data on the display unit and a display position of the road-related information on the display unit;
a map display control unit configured to calculate a display position of the road-related information corresponding to the road data, based on the adjustment data for an individual road;
the map display control unit configured to display the road-related information on a screen of the display unit relative to an image corresponding to the road data, and configured to adjust a position of the road-related information on the display relative to the image corresponding to the road data without performing updating of the road data on the display, wherein the adjustment of the position of the road-related information eliminates overlap between the road-related information and the road data so as to increase readability of the road-related information on the display unit; and
wherein the adjustment of the position of the road-related information is based on a number of lanes and a road type of the road.
1 Assignment
0 Petitions
Accused Products
Abstract
A map display device that displays a map image around a vehicle position includes a display unit; a first storage unit storing map data including road data of a road and road-related information related to the road; a second storage unit storing adjustment data based on a relationship between display positions of the road data and the road-related information; and a map display control unit for calculating the display position of the road-related information based on the adjustment data for the individual road, and displaying the road-related information on a screen of the display unit. A road width to be displayed o the screen may be determined in accordance with the number of lanes and a road type. The adjustment data may be a distance between the display positions of the road and the road-related information, and may be determined in accordance with the road type and the road width.
-
Citations
18 Claims
-
1. A map display device that displays a map image around a vehicle position, the display device comprising:
-
a display unit; a first storage unit configured to store map data including road data of at least one road and road-related information corresponding to the at least one road; a second storage unit, separate and independent from the first storage unit, configured to store adjustment data defining a relationship between a display position of the road data on the display unit and a display position of the road-related information on the display unit; a map display control unit configured to calculate a display position of the road-related information corresponding to the road data, based on the adjustment data for an individual road; the map display control unit configured to display the road-related information on a screen of the display unit relative to an image corresponding to the road data, and configured to adjust a position of the road-related information on the display relative to the image corresponding to the road data without performing updating of the road data on the display, wherein the adjustment of the position of the road-related information eliminates overlap between the road-related information and the road data so as to increase readability of the road-related information on the display unit; and wherein the adjustment of the position of the road-related information is based on a number of lanes and a road type of the road. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A map display method that generates a map image by using map data, the map data including road data of at least one road and road-related information, the road-related information including map character data having a street name corresponding to the at least one road and adjustment data based on a relationship between a display position of the street name and a display position of the at least one road, the method comprising:
-
detecting a current vehicle position; extracting the map data for an area around the current vehicle position; generating a map image, including the road-related information, based on the current vehicle position, and displaying the map image of a screen of a display unit; acquiring adjustment data based on a relationship between a display position of the road and a display position of road-related information for the road, the road-related information for the road being included in the map data; calculating an adjusted display position of the road-related information for the road based on the adjustment data; and displaying an updated map image on the screen based in the adjusted display position to adjust a position of the road-related information on the display relative to the road data without performing updating of the road data on the display, wherein the adjustment of the position of the road-related information eliminates overlap between the road-related information and the road data so as to increase readability of the road-related information on the display unit, and wherein the adjustment of the position of the road-related information is based on a number of lanes and a road type of the road. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
Specification