Power safe offline download
US11226811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2021 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Apr 12, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4401
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure generally relates to using a single firmware slot in a slower boot media while temporarily leveraging high speed media and dual boot designs to allow booting into a cached copy of firmware to guarantee power safety while writing the single firmware slot on the slower boot media. The device boots up with original firmware stored in a first non-volatile memory device when powered on. The device then checks a second non-volatile memory device for new firmware. If there is new firmware stored in the second non-volatile memory device, the device loads the new firmware into a volatile memory device and reboots with the new firmware. The device then writes the new firmware to the firmware slot of the first non-volatile memory device. If the device experiences a power cycle while writing the new firmware, the device can reboot with a cached copy of the new firmware.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.