Route guidance apparatus
US6163298A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | May 7, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/096872
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system (UTMS) is disclosed for sending guiding destination data to a control center and calculating a recommended route at the control center while taking traffic conditions into account and presenting the route to a vehicle, in which a route guidance apparatus promptly obtains the recommended route. A controller installed on the vehicle uses data stored in a map data memory to independently search for a route to a destination, and a UTMS link positioned on the obtained route is transmitted to the control center as guiding destination data. Until the search completes, immediately after the destination has been set, a UTMS area to which that destination belongs is transmitted to the control center as temporary guiding destination data. Thereafter, a UTMS link that appears from the search is transmitted as guiding destination data. A recommended route is obtained from the control center even before the search completes, thereby improving the utilization efficiency of the UTMS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.