Semiconductor storage apparatus and early-warning systems and methods for the same
US8487777B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2009 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | May 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/349
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are early-warning methods and early-warning devices for indicating a usage condition of a semiconductor storage device comprising a semiconductor storage medium. The semiconductor storage medium comprises a plurality of physical storage blocks. The method comprises: retrieving a usage condition value; comparing the usage condition value with a preset threshold; and providing an early-warning signal based on a result of the comparison, wherein the usage condition value comprises one of an average number of used times of the blocks and a maximum number of used times of the blocks. Since the early-warning is used to indicate the usage condition information of the semiconductor storage medium, users may be aware of when the lifetime of the semiconductor storage medium will expire so that important data can be backed up before the storage device is aged, thus ensuring safety of the data and avoiding data lost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.