Composite two-dimensional code and information processing system
US12430528B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Oct 19, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Oct 19, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2019/06225
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A composite two-dimensional code according to an embodiment of the present invention is a combination of a first two-dimensional code and a second two-dimensional code. The composite two-dimensional code includes a first cell having a first color, a second cell having a second color, and a third cell having a third color. The first color, the second color, and the third color are different from each other. The first two-dimensional code is acquired by a first filtering processing. The second two-dimensional code is acquired by a second filtering processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.