Navigation System Using Intersection Information
AssigneeXanavi Informatics Corporation
InventorsManabu Kato, Deepak Ramaswamy, Sadanori Horiguchi, Katsuaki Tanaka
Life of this patent
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Abstract
A navigation method and system for determining a desired geographic location. An intersection is first inputted by road names after which all intersections within a predetermined geographic area are identified which correspond to the inputted intersection. In the event that the number of identified intersections exceeds a predetermined threshold, additional information is optionally inputted regarding the desired geographic location and thereafter the identified locations are searched to determine the desired geographic location by utilizing the additional information.
Claims19
For use in conjunction with a navigation system, a method for determining a desired geographic location comprising the steps of:
- receiving at least two road names corresponding to an intersection,
- identifying all intersections within a geographic area which correspond to the received road names,
- in the event that the number of identified intersections exceed a preset threshold, receiving additional information regarding the desired geographic location and thereafter searching the identified intersections to determine the desired geographic location by utilizing the additional information,
- thereafter communicating the results of the search to a user.
A navigation system comprising:
- a display screen,
- means for inputting two road names representing an intersection at a desired geographic location,
- means for identifying all intersections within a geographic area which correspond to the inputted intersection,
- means for inputting additional information regarding the desired geographic location whenever the number of identified intersections exceed a preset threshold,
- means for thereafter searching the identified intersections to determine the desired geographic location by utilizing said additional information, and
- means for communicating the results of said search to a user.
A navigation system comprising:
- a display screen,
- an input device to enter two road names representing an intersection at a desired geographic location,
- a map database containing road geographic information,
- a search engine which queries said map database and identifies all intersections within a geographic area which correspond to the inputted intersection,
- said input device inputting additional information regarding the desired geographic location whenever the number of intersections identified by said search engine exceed a preset threshold, and
- said search engine being programmed to query said map database utilizing the additional information to determine the desired geographic location,
- displaying a map on said display screen of the desired geographic location.
Dependencies are inferred from the claim text.