Physical objects and validation of physical objects
US7269275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2005 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Nov 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3271
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates generally to validating and providing physical objects. In one implementation, a physical object includes a first digital watermark carried thereon. The first digital watermark includes a first plural-bit message representing at least a reduced-bit representation of a biometric corresponding to an authorized bearer of the physical object. The physical object further includes semantic information carried thereon. At least a portion of the semantic information corresponds to the authorized bearer of the physical object. In another implementation, an apparatus is provided to validate physical objects. In some cases the objects include identification documents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.