Method and apparatus for querying spatial data
US7945569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2004 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Feb 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/29
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosed embodiments relate to an apparatus for performing query operations. The apparatus comprises a base table having spatial objects, an index table having data entries that are associated with the spatial objects. A module that is adapted to perform the query operation is configured to convert a query window into values, create a scan range for each of the values with a begin range value, an end range value, and a stop condition, scan the data entries for each of the scan range to identify one of the end range value and the stop condition, and return a result based upon the data entries that are within the scan range for each of the values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.