Device for searching and guiding route and for searching route
US6049753A · kind A · utility
83Cited by
2References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1997 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Apr 25, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3484
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Plural guide routes to a destination are found based upon different bodies of road (intersection) information, one of these plural guide routes is selected, and guidance to the destination via the selected route is output. One of the bodies of road (intersection) information is memorized map information and another body of road (intersection) information is related to roads or intersections which have been passed through before.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.