Two dimensional barcode with dynamic environmental data system, method, and apparatus
US11182579B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Dec 20, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and apparatus for combining preprinted information together with coded sensor information within a two-dimensional barcode. The sensor information may be of an environmental, physical or biological nature, and records a change in status of the environmental or biological condition to which the labeled product has been exposed. A sensor dye chemistry is employed and when a specified condition of the sensed property occurs it causes a change in the color state of sensor dye modules embedded within the sensor-augmented two-dimensional barcode, encoding sensor digital information. Sensor information is recovered utilizing the error-correction feature during barcode reading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.