Techniques for protecting security features of integrated circuits
US10657291B2 · kind B2 · utility
2Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2018 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Sep 24, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2206/1014
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit includes a control circuit and a one-time programmable circuit. The control circuit determines if the one-time programmable circuit is programmed in response to an attempt to access a mode of the integrated circuit after the integrated circuit powers up. The control circuit generates a signal to indicate to a user of the integrated circuit that the mode of the integrated circuit has been previously accessed if the control circuit determines that the one-time programmable circuit has been programmed to indicate a previous access to the mode of the integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.