Storage module and method for determining whether to back-up a previously-written lower page of data before writing an upper page of data
US8819337B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2014 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Apr 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage module and method are disclosed for determining whether to back-up a previously-written lower page of data before writing an upper page of data. In one embodiment, a storage module receives a command to write an upper page of data to memory cells that have already been programmed with a lower page of data. The storage module determines whether a command to protect the lower page of data was previously received. The storage module backs-up the lower page of data in another area of the memory before writing the upper page of data to the memory cells only if it is determined that the command to protect the lower page of data was previously received. The storage module then writes the upper page of data to the memory cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.