Detection and mitigation of unstable cells in unclonable cell array
US11411563B1 · kind B1 · utility
3Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2021 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Apr 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3278
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit includes a set of multiple bit generating cells. One or more adjustable current sources is coupled to introduce perturbations into outputs of the bit generating cells. Based on the perturbations, the outputs of a subset less than all of the bit generating cells are selected, and applied as a control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.