Navigation apparatus, navigation method, and navigation program
US7634355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2007 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Dec 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/09675
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Navigation apparatus, methods, and programs merge and correct a plurality of types of past traffic information. The apparatus, methods, and programs may store a plurality of types of past traffic information, each type of past traffic information having a priority and may merge the stored past traffic information in accordance the priorities. The apparatus, methods, and programs may detect adjacency relationships among the plurality of links; and, if a detected link number indicates that the corresponding link is not adjacent to adjacent links, replaces the detected link number for the link, the replaced link number indicating that the link is adjacent to the adjacent links.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.