Patent ID: 9243919
Filing Date: 2016-01-26
CPC Classification: G01C,G08G,G09B

Claim Text:
1. A navigation server for supporting a guidance of a user by a navigation device based on communication with the navigation device, comprising a navigation server communication device in communication with the navigation device, and a navigation server processor and navigation server memory storing a navigation server program that, when executed by the navigation server processor, causes the navigation server processor to function as: a first navigation server support arithmetic processing unit that searches for a support route for guiding the user to a destination position based on communication with the navigation device, on a condition that a request including a position of the user, the destination position, and an index expressing a number of times a route search request has been made is recognized; and a second navigation server support arithmetic processing unit that makes the navigation device recognize a location point or a link included in the support route searched by the first navigation server support arithmetic processing unit based on communication with the navigation device, wherein the first navigation server support arithmetic processing unit searches for a current support route having a location point which is on a previous support route and which is a designated distance or more distant from the position of the user included in a current request as a starting point, on a condition that the current request including the index at a value of two or more and the destination position that is the same as the previous support route is recognized, and the first navigation server support arithmetic processing unit searches for a current support route having the position of the user as the staring point, on a condition that the current request including the index at a value of one or the destination position that is different from the previous support route is recognized.