Route guidance information generating device and method, and navigation system
First Claim
1. A route guidance information generating device comprising:
- a display;
a map store for storing a road network;
an input unit for entering plural points;
a search unit for taking in from said input unit information obtained from said map store to calculate a route between plural points;
a route guidance element generating unit for generating route guidance elements for route guidance on the basis of the route result calculated by said search unit; and
a route guidance information generating unit for generating route guidance information on the basis of the route guidance elements generated by said route guidance element generating unit, wherein said route guidance information generating unit generates route guidance information at plural guide points on the route between plural points as plural pieces of ordered information or information capable of fitting in one-screen display space of said display, wherein display positions of intersection names at the guide points in the route guidance information, composed of a plurality of names of intersections to pass through on the route between plural points, are brought into one-to-one correspondence with numeric key in ascending numeric order through hyperlinks.
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Abstract
Route guidance information capable of displaying a route can be generated in an easy-to-understand, user-friendly manner even on a small screen of a navigation system. To generate such information, route guidance information at plural guide points on the route between plural points is so constructed that each piece of route guidance information will fit in the area of one screen. Display positions of the route guidance information are brought into one-to-one correspondence with numeric keys in ascending numeric order, and into correspondence with one another through hyperlinks not accompanied by calling of another file. Each file is divided so that each piece will not exceed the file size or maximum value of the numeric keys.
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Citations
15 Claims
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1. A route guidance information generating device comprising:
- a display;
a map store for storing a road network;
an input unit for entering plural points;
a search unit for taking in from said input unit information obtained from said map store to calculate a route between plural points;
a route guidance element generating unit for generating route guidance elements for route guidance on the basis of the route result calculated by said search unit; and
a route guidance information generating unit for generating route guidance information on the basis of the route guidance elements generated by said route guidance element generating unit, wherein said route guidance information generating unit generates route guidance information at plural guide points on the route between plural points as plural pieces of ordered information or information capable of fitting in one-screen display space of said display, wherein display positions of intersection names at the guide points in the route guidance information, composed of a plurality of names of intersections to pass through on the route between plural points, are brought into one-to-one correspondence with numeric key in ascending numeric order through hyperlinks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- a display;
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15. A route guidance information generating device comprising:
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a display; a map store for storing a road network; an input unit for entering plural points; a search unit for taking in from said input unit information obtained from said map store to calculate a route between plural points; a route guidance element generating unit for generating route guidance elements for route guidance on the basis of the route result calculated by said search unit; and a route guidance information generating unit for generating route guidance information on the basis of the route guidance elements generated by said route guidance element generating unit; wherein said route guidance information generating unit generates route guidance information of plural guide points on the route as respective pieces of ordered information, representative of a plurality of names of intersections to pass through on the route between plural points, adapted to be displayed as a one-screen simplified display on said display, said pieces of information represented by corresponding numeric keys on the one-screen simplified display in a one-to-one correspondence through hyperlinks to respective other displays each adaptable to be displayed on the display when the numeric key corresponding to the each display is activated on the one-screen simplified display without the need to obtain further pieces of information from said route guidance information generating unit or said map store.
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Specification