Method of operating a navigation system
First Claim
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1. A method of operating a navigation system comprising:
- providing a geographic database containing data that represent geographic features in a geographic region;
obtaining an ordered plurality of interconnected segments providing a route from an origin to a destination, wherein said route includes at least a first segment followed by a second segment; and
forming a guidance message for said second segment, said step of forming said guidance message comprising;
obtaining data associated with said first segment from said geographic database that indicates whether a reference to the first segment provides orientation for an end user traveling from said first segment to said second segment;
if said data indicates said reference provides orientation, providing a phrase of after or a synonym thereof and a name of said first segment;
providing an indication of travel direction to said second segment; and
providing a reference to said second segment.
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Abstract
A method for operating a navigation system obtains an ordered plurality of interconnected segments providing a route from an origin to a destination. A guidance message for each of the segments is formed. The step of forming the guidance message comprises determining whether to reference a previous segment and adding a reference to a current segment.
70 Citations
21 Claims
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1. A method of operating a navigation system comprising:
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providing a geographic database containing data that represent geographic features in a geographic region; obtaining an ordered plurality of interconnected segments providing a route from an origin to a destination, wherein said route includes at least a first segment followed by a second segment; and forming a guidance message for said second segment, said step of forming said guidance message comprising; obtaining data associated with said first segment from said geographic database that indicates whether a reference to the first segment provides orientation for an end user traveling from said first segment to said second segment; if said data indicates said reference provides orientation, providing a phrase of after or a synonym thereof and a name of said first segment; providing an indication of travel direction to said second segment; and providing a reference to said second segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A navigation system comprising:
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a geographic database containing data that represent geographic features in a geographic region; a route calculation application that generates an ordered list of interconnected segments providing a route from an origin to a destination; and a route guidance application that generates a guidance message for each segment of said route, wherein said guidance message for a current segment is generated by; obtaining data associated with a previous segment from the geographic database that indicates whether a name of the previous segment provides orientation for an end user on said route traveling to said current segment; if said data indicates said name of the previous segment provides orientation, providing said name of said previous segment, wherein said name of said previous segment is a name of a geographic feature visible from said previous segment; providing an indication of travel direction to said current segment; and providing a name of said current segment, wherein said name of said current segment is a name of a geographic feature visible from said current segment. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A navigation system comprising:
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a route guidance application that provides a guidance message, wherein said guidance message comprising; a phrase of after or a synonym thereof; a name of a previous segment, wherein said name of said previous segment is a name of a geographic feature visible from a location proximate said previous segment; an indication of a travel direction to a current segment; and a name of said current segment, wherein said name of said current segment is a name of a geographic feature visible from a location proximate said current segment. - View Dependent Claims (21)
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Specification