Navigation system for displaying a structure-shape map
First Claim
1. A navigation system for providing road guidance by displaying a structure-shape map showing building shapes and roads, said navigation system comprising:
- storage means for storing guidance information including information regarding building shapes;
display means for displaying said guidance information; and
guidance control means for controlling information displayed on said display means;
wherein said guidance control means sorts the information regarding building shapes stored in said storage means according to a predetermined condition, and controls information displayed on said display means on the basis of the sorted information regarding building shapes.
1 Assignment
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Accused Products
Abstract
Road or other guidance is provided by displaying a structure-shape map showing building shapes and roads. Drawing of building shapes on the map is restricted according to a specific condition, e.g. the travel condition of the vehicle, or the screen scroll mode, by setting the display color for building shapes to the same color as that for a background, or by not drawing any of them, thereby preventing the screen from becoming difficult to see even during scrolling. For the structure-shape map, a storage device (3) stores map data having a name and a coordinate string for each shape of various structures and information belonging to each structure. A guidance controller (4) decides colors, color densities, patterns thereof, etc. for shapes as display modes on the basis of information belonging to the structures, e.g. the classification and height of each structure, and other detailed information (e.g. scale of construction), retrieves information belonging to a structure concerned, together with information regarding surroundings, and displays, on a display (12), shapes and names according to the decided display modes, thereby giving guidance. The structure-shape map may be displayed centered on a structure having a telephone number retrieved by entry of the telephone number.
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Citations
28 Claims
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1. A navigation system for providing road guidance by displaying a structure-shape map showing building shapes and roads, said navigation system comprising:
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storage means for storing guidance information including information regarding building shapes; display means for displaying said guidance information; and guidance control means for controlling information displayed on said display means; wherein said guidance control means sorts the information regarding building shapes stored in said storage means according to a predetermined condition, and controls information displayed on said display means on the basis of the sorted information regarding building shapes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 28)
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15. A navigation system comprising:
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present-position sensing means for sensing a present position; storage means for storing guidance information including information regarding building shapes; condition judging means for judging whether or not a predetermined condition is satisfied; display means for displaying information regarding surroundings of the present position on the basis of the present position sensed by said present-position sensing means and the guidance information stored in said storage means; and guidance control means for controlling information displayed on said display means; wherein said guidance control means has sorting means for sorting building shapes from the information regarding building shapes stored in said storage means, so that the information regarding building shapes is sorted on the basis of a result of judgment by said condition judging means, and information displayed on said display means is controlled on the basis of the information regarding building shapes sorted by said sorting means. - View Dependent Claims (16, 17, 18, 19)
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20. A navigation system for providing road guidance by displaying a structure-shape map showing building shapes and roads, said navigation system comprising:
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recording-medium read means for reading out, from a recording medium, a program and data for drawing building shapes and roads on said structure-shape map and displaying said structure-shape map to provide road guidance; non-volatile recording means for storing a program; program read means for reading the program read out by said recording-medium read means into said non-volatile recording means; display means for displaying said structure-shape map; and processing means for executing the program read into said non-volatile recording means by said program read means, thereby displaying said structure-shape map on said display means on the basis of the data recorded on said recording medium, which is read out through said recording-medium read means, to provide road guidance; wherein drawing of building shapes is restricted according to a specific condition when said structure-shape map is displayed on said display means.
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21. A recording medium for a navigation system which provides road guidance by displaying a structure-shape map showing building shapes and roads, said recording medium having the record of:
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structure-shape map data having information regarding shape of each of various structures, and information belonging to each of said structures; and a program for drawing and displaying a shape and name of each structure on the basis of said structure-shape map data and for restricting drawing of building shapes according to a specific condition.
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22. A navigation system comprising:
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input means for entering a telephone number; storage means for storing a set of position coordinates corresponding to each telephone subscriber'"'"'s number, a set of representative position coordinates corresponding to an office number, and map data having information regarding shape of each of various structures, and information belonging to each of said structures, including a telephone number thereof; display means for displaying a structure-shape map showing a shape and name of a structure on the basis of the information regarding shape in the map data stored in said storage means; and retrieval and guidance control means for retrieving a telephone number stored in said storage means on the basis of a telephone number entered by said input means and for displaying, on said display means, a structure-shape map centered on a structure having the retrieved telephone number. - View Dependent Claims (23)
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24. A navigation system comprising:
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storage means for storing map data having information regarding shape of each of various structures, and information belonging to each of said structures, including a telephone number thereof; and guidance control means for retrieving, upon entry of a telephone number, a telephone number corresponding to said entered telephone number from said information belonging to each of said structures, and for displaying a structure-shape map centered on a structure having the retrieved telephone number. - View Dependent Claims (25, 26, 27)
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Specification