Processor power supply glitch mitigation
US10255603B1 · kind B1 · utility
14Cited by
19References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2017 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Aug 31, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A transaction device includes a bootloader that a processing unit executes during device startup. The bootloader causes the processing unit to access values from a persistent memory that are relevant to whether a glitch has occurred on a power supply for the processing unit. Based on the values that are acquired from the persistent memory, the processing unit may implement countermeasures, such as disabling certain device operations or delaying the device booting process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.