NAND logical-to-physical table region tracking
US11269545B2 · kind B2 · utility
4Cited by
3References
27Claims
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Key dates
| Filing date | Dec 21, 2017 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Nov 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7209
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Devices and techniques for NAND logical-to-physical table region tracking are described herein. A write request, including a logical page and data to be written at the logical page, is received at a controller of a NAND device. The NAND controller may then establish an entry in a logical-to-physical (L2P) mapping table between the logical page and a physical page of a physical block of the NAND device to which the data is written. Here, the entry may be in a region of the L2P mapping table that is one of multiple regions. An indication of the region may be written in a data structure corresponding to the physical block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.