Detection and mitigation of unstable cells in non-clonal cell arrays
By using adjustable current mirrors and delay elements in the non-clonable cell array, unstable cells are detected and reduced, solving the output instability problem caused by process variations and improving the reliability and stability of encryption and authentication.
CN114969844BActive Publication Date: 2026-05-26NVIDIA CORP
View PDF 1 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NVIDIA CORP
- Filing Date
- 2022-02-11
- Publication Date
- 2026-05-26
Smart Images
Figure CN114969844B_ABST
Abstract
The detection and mitigation of unstable cells in an array of non-cloning cells are disclosed. A circuit includes a set of multiple bit generation cells. One or more adjustable characterization circuits are coupled to the input of the bit generation cells to influence the output of the bit generation cells. Based on the influence of the one or more characterization circuits on the output of the bit generation cells, a subset smaller than all the bit generation cells is selected.
Need to check novelty before this filing date? Find Prior Art