Approach for data integrity in an embedded device environment
US8448023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | May 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/214
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for providing data integrity in an embedded device environment. One approach is operating an embedded control engine with non-battery backup power and providing data backup with inexpensive memory. Just data having changes may be provided to a volatile memory such as an SRAM module. After an accumulation of a certain amount of data, the data may be moved onto a relatively larger non-volatile memory, such as an NVRAM module or other type of flash memory. Non-battery backup power may maintain the SRAM module for a period after a power loss, so as to retain data. After restoration of power, data from NVRAM and SRAM modules may be read by the backup service to recreate the last known state of the control engine before the power loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.