Monotonic counter
US11776601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2022 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Mar 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K21/403
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a monotonic counter whose value is represented by a number N of binary words of N memory cells of a non-volatile memory, and being able to implement a step increment operation wherein if only one first memory cell represents a first value different from zero, then a second value equal to the said first value incremented by two times the said step is written into a second memory cell of rank directly higher than the rank of the first memory cell; and if a third and a fourth memory cell of consecutive ranks represent, respectively, a third value and a fourth value different from zero, then the third value of the third memory cell of lower rank is erased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.