Memory system
US10748589B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2019 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Jul 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/0411
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a memory system includes a nonvolatile memory and a controller. The nonvolatile memory includes first blocks each including magnetic memory lines and performs writing and reading of data for each block by a last-in first-out (LIFO) method by shifting, in a unit of a layer, data portions stored in a plurality of layers, respectively, in a first direction from a top layer to a last layer or in a second direction opposite to the first direction, the magnetic memory lines including the plurality of layers. The controller controls the nonvolatile memory. The controller selects a source block of a compaction process from the first blocks based on a ratio of layers of a second attribute to the plurality of layers in each of the first blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.