Navigation device and data update system
US8510042B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 28, 2008 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Feb 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/29
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Data in an update data format for performing an update of reference map data is formed by storing in each data frame divided for each data type, at least one of: a first group of one or more common map data records to be stored according to the data type of each data frame in a common map data frame after a conversion by a conversion unit; a second group of one or more first map data records to be stored according to the data type of each data frame in a first map data frame after a conversion by a conversion unit; and a third group of one or more second map data records to be stored according to the data type of each data frame in a second map data frame after a conversion by a conversion unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.