Data updating system, navigation device, server, and method of data updating
US8892517B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 8, 2007 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Jan 4, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3859
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A data updating system includes a navigation device running according to a predefined application program; and a server providing the navigation device with a differential data file for updating a database containing road network data. The navigation device includes a navigation memory storing a local database in an updating data format in which the road network data is arranged in the order of data types and to be updated with the differential data file; and a navigation controller that converts data stored in the local database so as to have the reference data format in which the road network data is arranged in the order of connection of the road network to be referenced to by the application program. The server includes a server controller that outputs the differential data file to be provided to the navigation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.