Method and apparatus for generating positioning assistance data
US9204260B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Jan 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/33
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided herein for assistance data generation based on raster images, such as raster images of floor plans. A method provided herein for generating positioning assistance data includes obtaining a first raster image including a floor plan of an area; obtaining geographic reference information corresponding to the area, the geographic reference information including a location of the area; extracting structural features of the area from the floor plan of the area via the first raster image; and generating assistance data for the area based on the extracted structural features and the geographic reference information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.