Semiconductor integrated circuit with security function
US7159153B2 · kind B2 · utility
21Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 3, 2003 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Aug 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/87
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An IC (integrated circuit) card (or smart card) comprising a plurality of detectors for detecting abnormal operating conditions of the IC card. If an abnormal condition is detected by one of the detectors, the detector will generate a detection signal, which is then stored in a nonvolatile memory. A reset signal is then generated in response to the detection signal to reset a central processor unit. The central processor unit informs a user of a reset status and a cause thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.