Memory control device, in-car device, memory control method, and computer product for managing data in response to various power states
US7516283B2 · kind B2 · utility
1Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2005 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Aug 31, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Data is stored in a non-volatile memory such as a flash memory. The non-volatile memory has two memory areas. When power of a device is turned on, data in the two memory areas are compared to determine which memory area includes old data, and the old data is erased. When the power is turned off, a control setting of the device used immediately before the power is turned off is stored as new data in the memory area from which the old data is erased. When the power is applied again, the new data is read, and the control setting is restored in the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.