Information providing system
US6324467A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Mar 3, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/096894
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An information providing system is capable of rendering map-information services even if the size of a free area in a memory employed in a terminal becomes small, disallowing all details of a map to be downloaded. A server employed in the information providing system has a search engine for searching a map data base for a map suitable for a destination and the present position of the terminal as received from the terminal, a route computing unit for computing a guide route from the present position to the destination, a map display location determination unit for determining a location at which route information including a map based on the calculated guide route is to be transmitted to the terminal and a thinning determination unit for thinning the information to be transmitted based on information on the terminal received from the terminal. The thinning determination unit has a priority-level definition table for defining priority levels assigned to map elements stored in the map data base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.