Navigation system
First Claim
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1. A navigation system for displaying guidance in accordance with map data, the system comprising;
- a landmark displaying device for displaying structures corresponding to the map data as landmarks, wherein the landmark displaying device sets reference positions in the landmarks and determines the location and direction of a landmark so that the reference position on a map faces to a road nearby.
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Abstract
A navigation system for displaying guidance in accordance with map data is provided. The navigation system includes a landmark displaying device for displaying structures corresponding to the map data as landmarks. The landmark displaying device sets reference positions in the landmarks and determines the location and direction of a landmark so that it would face to a road nearby.
52 Citations
24 Claims
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1. A navigation system for displaying guidance in accordance with map data, the system comprising;
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a landmark displaying device for displaying structures corresponding to the map data as landmarks, wherein the landmark displaying device sets reference positions in the landmarks and determines the location and direction of a landmark so that the reference position on a map faces to a road nearby. - View Dependent Claims (2, 3)
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4. A navigation system for displaying guidance in accordance with map data, the system comprising:
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a landmark displaying device for displaying structures corresponding to the map data as landmarks, wherein the landmark displaying device sets reference positions in the landmarks, determines the location and direction of a landmark so that the reference position faces to a road nearby, and when multiple roads exist in areas near to the landmark, selects a road closest to the landmark. - View Dependent Claims (5, 6)
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7. A navigation system for displaying guidance in accordance with map data, the system comprising:
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a landmark displaying device for displaying structures correspondence to the map data as landmarks, wherein the landmark displaying devices sets reference positions in the landmarks, determines the location and direction of a landmark so that the reference position faces to a road nearby, sets a priority in accordance with the types of the roads, and when multiple roads exist in areas near to the landmark, selects a road with the highest priority. - View Dependent Claims (8, 9)
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10. A navigation system for displaying guidance in accordance with map data, the system comprising;
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a landmark displaying device for displaying structures corresponding to the map data as landmarks, wherein the landmark displaying device sets reference positions in the landmarks and determines the location and direction of a landmark so that the reference position faces to a road nearby, the landmarks includes three-dimensional landmarks that three-dimensionally represent structures corresponding to the map data, and the landmark displaying device replaces a three-dimensional landmark with a plain landmark when sufficient room to display the three-dimensional landmark cannot be ensured.
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11. A computer-readable medium on which is stored a data structure comprising:
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road data for providing map displays;
landmark data for displaying landmarks on the map displays; and
road priority data for use in a data processing operation for determining positional relationships of landmarks with roads on the map displays. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A navigation system comprising:
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a display;
a processing system displaying maps on the display, wherein at least one map generated by the processing system includes a landmark comprising a reference position and the processing system determines a positional relationship of the reference position of the landmark to a road on the at least one map. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification