Method and system for providing navigation systems with updated geographic data
US6121924A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1997 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Dec 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for providing updated geographic data for use by a navigation application program. The navigation application program is at a first version level and uses geographic data in a geographic database. An updated geographic database is provided to the navigation application program. The updated geographic database is at a second version level which is later than the first version level. Also provided to the navigation application program are one or more replacement routines. These replacement routines may be stored with the updated geographic database on a computer-readable medium or may be provided separately. The one or more replacement routines are used by the navigation application program either at initialization or during runtime. The one or more replacement routines are called to access or use the data in the updated geographic database. The one or more replacement routines are preferably in an interpretive language and executed by a virtual processor. The virtual processor may be part of the navigation application program. The one or more replacement routines can be used by the navigation application program thereby enabling the navigation application program…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.