Secure point of sale presentation of a barcode at an information handling system display
US9280770B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2014 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Nov 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/4015
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
Unauthorized copying of a transaction barcode is prevented by including a sensed condition or other publicly-accessible data with the transaction barcode for use as a comparison with the publicly accessible data determined at a barcode reader. If the sensed condition included in the transaction barcode indicates that the transaction barcode was generated for a different transaction, then the barcode reader invalidates the transaction. For instance, if the barcode was generated too distant in time, position, or sequential transactions, then the barcode reader invalidates the transaction barcode as an unauthorized copy of a transaction barcode generated for a different transaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.