Map update data supplying apparatus, version table, map data updating system, and map update data supplying method
US7974959B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 27, 2007 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Aug 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3878
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Map updating systems, methods, and programs that extract update requiring sections with respect to an update requesting section that is one of the sections being a target of an update request requesting that the target map data should be updated, obtain the information related to the guaranty versions respectively corresponding to the extracted update requiring sections by referring to the version table, the update requiring sections each being one of the sections that needs to be updated in order to guarantee integrity between the sections that are positioned adjacent to each other after the update requesting section has been updated, and generate, based on the update-purpose map database, one of the update data files regarding the update requesting section as well as other ones of the update data files regarding the update requiring sections and having the update versions indicated as the guaranty versions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.