Method of authenticating a consumable
US7798594B2 · kind B2 · utility
10Cited by
27References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2006 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Feb 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of generating an authentication code for a consumable includes assigning an identification number to the consumable; processing an input including at least the identification number, using a first algorithm, to generate a preliminary number different from the identification number; and compressing the preliminary number using a compression algorithm, different from the first algorithm, that utilizes the identification number to generate an authentication value for use in authenticating the consumable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.