Display method and apparatus for navigation system for searching POI and arranging listing order of POI
First Claim
1. A display method for a navigation system for guiding a user to a destination, comprising the following steps of:
- determining a route to the destination;
specifying a search area along the route to the destination by dividing the route from a user position to the destination into distance ranges and by defining a transversal distance from the route;
retrieving points of interest (POIs) within the search area;
displaying a list of distance ranges where each distance range shows a number of POIs retrieved within the distance range; and
displaying a list of POI names in a distance range selected by a user in an order determined by modified distance of the POIs calculated by a predetermined algorithm.
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Accused Products
Abstract
A display method and apparatus for navigation system enables a user easily see a list of points of interest (POIs) along a route to a destination. The navigation system shows a list of distance ranges of the route where each range shows a number of POIs searched. The current user position is marked in the corresponding distance range. The navigation system displays a list of POI names in the selected distance range where the POI names are arranged in the order that the user sees the POIs along the route. For determining the listing order, the navigation system uses a plurality of region circles having their centers on the route to the destination, and retrieves POIs contained in the region circles and calculates a modified distance of each POI.
161 Citations
30 Claims
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1. A display method for a navigation system for guiding a user to a destination, comprising the following steps of:
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determining a route to the destination;
specifying a search area along the route to the destination by dividing the route from a user position to the destination into distance ranges and by defining a transversal distance from the route;
retrieving points of interest (POIs) within the search area;
displaying a list of distance ranges where each distance range shows a number of POIs retrieved within the distance range; and
displaying a list of POI names in a distance range selected by a user in an order determined by modified distance of the POIs calculated by a predetermined algorithm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A display apparatus for a navigation system for guiding a user to a destination, comprising:
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means for determining a route to the destination;
means for specifying a search area along the route to the destination by dividing the route from a user position to the destination into distance ranges and by defining a transversal distance from the route;
means for retrieving points of interest (POIs) within the search area;
means for displaying a list of distance ranges where each distance range shows a number of POIs retrieved within the distance range; and
means for displaying a list of POI names in a distance range selected by a user in an order determined by modified distance of the POIs calculated by a predetermined algorithm. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification