Data-storage device and block-releasing method
US10340025B2 · kind B2 · utility
1Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2018 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Jan 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a data-storage device. The data-storage device includes a flash memory and a controller. The flash memory has a plurality of blocks and each of the blocks has a plurality of pages. The blocks include a plurality of bad blocks that are labeled as damaged. The controller selects one of the bad blocks as a test block, and reads the pages in the test block to determine whether the pages in the test block are damaged. When all the pages in the test block are undamaged, the controller labels the test block as a spare block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.