Data management for memory devices
US11138110B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Apr 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Designs of persistently managing mapping tables are described. To keep the performance of writing data into or reading out data from a storage device, such as flash memory, RAM (Random Access Memory) is often used to manage the mapping tables. To prevent the mapping tables from being damaged for whatever reason (e.g., power failure), MRAM (Magnetic RAM) is employed to keep the mapping tables in magnetic domains while the RAM is only used for updating the content of the mapping tables. Not only is the capacity for RAM is significantly reduced, the mapping tables are securely maintained in MRAM and available to RAM while data is being written into or read out from the storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.