Data writing method and data storage device
US8634243B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2011 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Nov 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a data writing method for a flash memory. First, a target block for storing write data is selected from a plurality of blocks of the flash memory. A target pair page is then selected from a plurality of pair pages of the target block according to a pair page record table, wherein the pair page comprises a strong page and a weak page. The flash memory is then directed to write a data page of the write data to the strong page of the target pair page. The flash memory is then also directed to write first predetermined data to the weak page of the target pair page, wherein the weak page storing the first predetermined data extends the data duration of the strong page of the target pair page. Selecting of the target pair page, writing of the data page, and writing of the first predetermined data are repeated until all of the write data are written to the target block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.