Random code generator with differential cells and associated control method
US10459693B2 · kind B2 · utility
5Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2018 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Jul 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10B41/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A random code generator includes a differential cell array, a power circuit, a voltage detector, a control circuit and a read/write circuit. The power circuit provides a supply voltage to a node. The differential cell array includes plural differential cells. Each differential cell includes two sub-cells. The two sub-cells have process variations. During the enrollment, one sub-cell is programmed, and the other sub-cell is subjected to a program inhibition. In addition, a random code is generated according to the storage state of the differential cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.