Navigation system
US7512483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2006 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Sep 22, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3664
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to the 1st aspect of the invention, a navigation system comprises: a storage unit that stores map data managed with links representing smallest road units; a road map display unit that displays a road map based upon the map data; a depressed position detection unit that detects a depressed position on the road map on display; and a route setting unit that extracts a corresponding link corresponding to the depressed position and sets the extracted corresponding link as a route to a destination based upon the map data, and the route setting unit extracts a link adjacent to the corresponding link and makes a decision as to whether or not the adjacent link can be entered from the corresponding link based upon the map data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.