Optical data exchange while preserving social distancing
US11636709B2 · kind B2 · utility
2Cited by
62References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2021 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Dec 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For scanning optical patterns, such as two-dimensional QR codes, with a mobile device at increased distances, a first image is acquired. A region of interest likely containing the optical pattern in the first image is identified. The mobile device then zooms in on the region of interest and a second image is acquired. The optical pattern is then decoded using the second image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.