System and methods for digital receipts
US6996546B1 · kind B1 · utility
15Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | May 31, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q30/0283
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A secure system for creating digital receipts, while minimizing the amount of data that is encoded in the digital receipt. The digital receipt provides authentication for a transaction. A digital receipt may be printed in the form of a code. The digital receipt digitally encodes a transaction identification code, a transaction amount or number of units authorized, and a digital signature. The digital receipt may be scanned or read to verify the authenticity of the transaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.