Physical unclonable function imaged through two faces
US9917699B2 · kind B2 · utility
7Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2015 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Feb 15, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A physical unclonable function (PUF) imaged through two faces is disclosed. The PUF is difficult to counterfeit because the view through both faces must be duplicated for a successful counterfeit. PUF may be incorporated into a user-replaceable supply item for an imaging device. A PUF reader may be incorporated into an imaging device to read the PUF. Other systems and methods are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.