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AssigneesDenso Corporation, Kousokuya, Inc.
InventorsHidetoshi Fujimoto, Toshio Nomura, Yasutaka Atarashi, Toshio Shinjo, Akio Samizu
Estimating the term…
In map data having link information, each of the links has reference information regarding a start point node of the link, a next link in a series of links, and an upper link. Further, links are memorized in a form of link list, and the position of the link in the link list is not changed in the course of adding/deleting a link, thereby enabling a direct reference to each of the links in the link list by the position of the link. The link information organized in the above-described manner enables the ease of the update of the map data as well as the speed-up of the calculation of, for example, a navigation route.
A map data update apparatus having a link list for link management in map data by using update data that updates the link list, the update data specifies position information of a subject link to be updated in the link list, the apparatus comprising:
A program product stored in a non-transitory computer-readable storage medium having instructions, when executing causing a computer to perform steps of a method, the method of updating map data having a link list for link management in map data based on update data that, for updating of the link list, specifies position information of a subject link to be updated in the link list, the method comprising:
A method of updating map data having a link list for link management in map data based on update data that, for updating of the link list, specifies position information of a subject link to be updated in the link list, the method comprising:
Dependencies are inferred from the claim text.