Navigation server and navigation system
US8185310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2008 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Jun 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/096844
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A navigation device and the like capable of appropriately alleviating an amount of communicating information between the navigation server and a navigation device, from the viewpoint of guiding a user to a destination point via the navigation device, on the basis of a support route which is set by the navigation server. Of the links constituting a support route R which connects the current position p1 and the destination position p2 of the user, the links satisfying an extraction condition set according to a changing pattern of a road type are extracted as target links. Also, the target links, that is, the link having high necessity from the viewpoint of guiding the user, with regard to the changing pattern of the road type, is recognized by the navigation device 200 on the basis of communication between the navigation server 100 and the navigation device 200.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.