Computer-implemented methods and systems for multi-level geographic query
US8458173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2010 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jul 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q30/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one aspect of the present disclosure, a computer-implemented method is provided for processing a query for points of interest (POIs) using a hierarchical grid structure representing a geographic area. The method includes receiving a query for POIs; defining a query footprint for the query based on a location corresponding to the query, wherein the query footprint comprises query spatial identifiers for a plurality of levels of the hierarchical grid structure; matching the query spatial identifiers with one or more POI spatial identifiers organized into a plurality of indexes, wherein each one of the plurality of indexes comprises an index of the POI spatial identifiers for one of the plurality of levels; and providing an output specifying one or more POIs corresponding to the matched POI spatial identifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.