On-Vehicle Map Display Apparatus, Map Display Method
First Claim
1. An on-vehicle map display apparatus, comprising:
- a map scale setting unit that sets a map scale;
a summary map generation unit that generates a summary map by abbreviating a road shape, if a map scale that is less than a predetermined scale is set by the map scale setting unit;
a summary map display control unit that displays the summary map generated by the summary map generation unit upon a display monitor;
a congestion information acquisition unit that acquires congestion information; and
a congestion information display control unit that displays the congestion information acquired by the congestion information acquisition unit as superimposed upon the summary map displayed upon the display monitor by the summary map display control unit.
2 Assignments
0 Petitions
Accused Products
Abstract
This on-vehicle map display apparatus comprises a map scale setting unit that sets a map scale, a summary map generation unit that generates a summary map by abbreviating road shapes if a map scale that is less than a predetermined scale is set by the map scale setting unit, a summary map display control unit that displays the summary map generated by the summary map generation unit upon a display monitor, a congestion information acquisition unit that acquires congestion information, and a congestion information display control unit that displays the congestion information acquired by the congestion information acquisition unit as superimposed upon the summary map displayed upon the display monitor by the summary map display control unit.
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Citations
11 Claims
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1. An on-vehicle map display apparatus, comprising:
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a map scale setting unit that sets a map scale; a summary map generation unit that generates a summary map by abbreviating a road shape, if a map scale that is less than a predetermined scale is set by the map scale setting unit; a summary map display control unit that displays the summary map generated by the summary map generation unit upon a display monitor; a congestion information acquisition unit that acquires congestion information; and a congestion information display control unit that displays the congestion information acquired by the congestion information acquisition unit as superimposed upon the summary map displayed upon the display monitor by the summary map display control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A map display method, comprising:
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setting a map scale; generating a summary map by abbreviating road shapes, if a map scale that is less than a predetermined scale is set; displaying the generated summary map upon a display monitor; acquiring congestion information; and displaying the acquired congestion information as superimposed upon the summary map displayed upon the display monitor.
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Specification