Communications type navigation device
US6873905B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Mar 19, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/096883
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
There is provided a communications-type car navigation system including a vehicle-mounted terminal and a server. When transferring, to the terminal, the result of a route searching which the server has performed, the server transfers the data that will satisfy the requirements of a route guiding method which the user wishes. Also, the server transfers the route data that has been compressed. Concerning the map data as well, the server transfers only the necessary attributes thereof. Moreover, the following conditions allow the operability to be enhanced: the selection of a map transferring method and the route guiding method where the driving state has been taken into consideration, and the selection of a guiding unit which the user wishes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.