Localization of a mobile device based on image and radio words
US11076264B2 · kind B2 · utility
1Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | Sep 24, 2018 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/003
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile device that is able to locate itself in a topological map using a combination of visual and radio information is provided. The mobile device captures an image of its environment, detects receivable radio transmitters and builds an observation vector that defines visual words and radio words that are present at the current location of the mobile device. It then compares this observation vector to reference vectors corresponding to reference location and identifies, based on correlations between visual words and radio words, the location of the mobile device among reference locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.