Information processing unit having tamper-resistant system
US7451485B2 · kind B2 · utility
1Cited by
9References
6Claims
0Family size
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Key dates
| Filing date | Apr 18, 2002 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Mar 28, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/556
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A malfunction detection system is provided that can continue or terminate processing appropriately even if a malfunction occurs in an information processing unit. In this regard, the information processing unit receives branch direction information, carries out a conditional branch depending on the branch direction information, and performs an applicable operation on data I. At this time, the information processing unit performs an applicable operation on data J, other than the operated data I, in the conditional branch path and outputs the result for examination, thereby enabling validation of the conditional branch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.