Upgrade for navigation data based on usage data or initialization of navigation data
US7089546B2 · kind B2 · utility
6Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2002 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Jul 24, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99938
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An upgrade method for navigation data is provided with: a memory status of a memory device that is removed from a navigation apparatus is checked and it is determined whether there are the navigation data to be upgraded and the user data to be saved. The user data is saved in a backup memory device. The navigation data is written over with upgraded navigation data. Then, the saved data is read from the backup memory device and rewritten in the memory device as the user data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.