Geographic database architecture for representation of named intersections and complex intersections and methods for formation thereof and use in a navigation application program
US6184823A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1998 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | May 1, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/29
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An architecture for a geographic database that supports the identification and use of names for intersections of roads located in a geographic region, and methods for use and formation thereof. The geographic database includes data that represent components of a road network in a geographic region. The geographic database includes a first plurality of data entities each of which represents an intersection of roads in the road network and a second plurality of data entities each of which represents a name of one of the components of the road network. The geographic database includes a third plurality of data entities each of which associates one of the first plurality of data entities with one of the second plurality of data entities. The third plurality of data entities are referenced by other data entities in the geographic database and by indices to allow a navigation application program using the geographic database to identify intersections of roads in the geographic region by name and to use the name of an intersection for the purpose of location identification and route guidance. Also disclosed is an improved process for forming substitute data records to represent complex ph…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.