Tamper detection arrangements, and point of sales systems employing same
US11636565B1 · kind B1 · utility
3Cited by
7References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2020 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Apr 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0601
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Authenticity of a sticker (e.g., a mark-down sticker on a retail item), or integrity of a closure (e.g., on a delivery bag or package), is confirmed by reference to spatial information. In some embodiments a fingerprint is formed from parameters describing spatial placement of a sticker or pattern on a substrate. In some embodiments a digital watermark pattern provides a spatial frame of reference within which one or more other features can be located. A great many other features and arrangements are also detailed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.