Data storage device and method for data error management
US10446252B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 2018 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jun 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7207
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage device with high security is disclosed. A nonvolatile memory provides a storage space divided into a plurality of first-level cells. The first-level cells are grouped into a plurality of second-level cells with each second-level cell containing several first-level cells. Each of the plurality of first-level cells is provided with checking and correcting code by a control unit. When reading a specified first-level cell, the control unit checks data in the specified first-level cell based on the checking and correcting code of the specified first-level cell and thereby performs a self-test on another space of a specified second-level cell. The specified first-level cell is provided in the specified second-level cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.