Semiconductor memory
US6970381B2 · kind B2 · utility
7Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2003 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Jan 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor memory in which the protection state of data in a nonvolatile memory can be changed quickly and which provides sufficient security. A volatile protection state specification section controls the protection state of data in the nonvolatile memory. A nonvolatile initial state store section determines the initial state of the protection state specification section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.