Dynamic updates to logical-to-physical address translation table bitmaps
US12360914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2024 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jan 31, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes: creating a logical-to-physical address translation (L2P) bitmap for each respective virtual block programmed across a plane of multiple dice of a memory device, each L2P bitmap identifying logical addresses, within each respective L2P table of a plurality of L2P tables, that belong to a respective virtual block; creating a virtual block (VB) bitmap for each respective L2P table, the VB bitmap identifying virtual blocks to which the respective L2P table points; creating an updated VB bitmap for a first L2P table, of the plurality of L2P tables, based on changes to the first L2P table; determining that an entry in the VB bitmap is different than the entry in the updated VB bitmap, the entry corresponding to a particular virtual block; and identifying and updating, by the processing device, an L2P bitmap associated with the particular virtual block for an L2P mapping corresponding to the entry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.