On-vehicle information terminal, abridged map generating apparatus, abridged map display method and display apparatus
First Claim
1. An on-vehicle information terminal comprising:
- an abridged road generating device that generates an abridged road by abridging a road map based upon a map data;
a road decision-making device that makes a decision as to whether or not a road is a special shape road having a predetermined special shape based upon the map data;
a substituting device that substitutes a specific road shape pattern stored in memory in advance for the road judged to be the special shape road by the road decision-making device; and
a display control device that displays at a display device an abridged map containing the specific road shape pattern substituted for the special shape road by the substituting device and the abridged road generated by the abridged road generating device.
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Accused Products
Abstract
The on-vehicle information terminal according to the present invention comprises an abridged road generating device that generates abridged roads by abridging a road map based upon map data, a road decision-making device that makes a decision as to whether or not a road is a special shape road having a predetermined special shape based upon the map data, a substituting device for substitutes a specific road shape pattern stored in memory in advance for a road determined by the road decision-making device to have a special shape and a display control device that displays at the display device an abridged map containing specific road shape patterns used to substitute for special shape roads by the substituting device and the abridged roads generated by the abridged road generating device.
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Citations
21 Claims
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1. An on-vehicle information terminal comprising:
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an abridged road generating device that generates an abridged road by abridging a road map based upon a map data;
a road decision-making device that makes a decision as to whether or not a road is a special shape road having a predetermined special shape based upon the map data;
a substituting device that substitutes a specific road shape pattern stored in memory in advance for the road judged to be the special shape road by the road decision-making device; and
a display control device that displays at a display device an abridged map containing the specific road shape pattern substituted for the special shape road by the substituting device and the abridged road generated by the abridged road generating device. - View Dependent Claims (2, 3, 4, 5, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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7. An abridged map generating apparatus, comprising:
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an abridged road generating device that generates an abridged road by abridging a road map based upon a map data;
a road decision-making device that makes a decision as to whether or not a road is a special shape road having a predetermined special shape based upon the map data;
a substituting device that substitutes a specific road shape pattern stored in memory in advance for the road judged to be the special shape road by the road decision-making device; and
an abridged map output device that outputs to an external recipient a signal constituting an abridged map containing the specific road shape pattern substituted for the special shape road by the substituting device and the abridged road generated by the abridged road generating device.
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8. An abridged map display method, comprising:
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generating an abridged road by abridging a road map based upon a map data;
making a decision as to whether or not a road is a special shape road having a predetermined special shape based upon the map data;
substituting a specific road shape pattern stored in memory in advance for the road judged to be the special shape road; and
displaying an abridged map containing the specific road shape pattern substituted for the special shape road and the abridged road.
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9. A display apparatus that displays an abridged map, wherein:
the abridged map is formed by connecting an abridged road generated by simplifying a road shape and a predetermined circular line for indicating a circular intersection.
Specification