Data recording device
US7266034B2 · kind B2 · utility
7Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Mar 18, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/3431
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An data recording device according to an aspect of the present invention includes a memory cell array in a memory chip, a refresh circuit which executes a refreshing of the memory cell array, a refresh control circuit which executes refreshing at a time interval which is shorter than a data hold time and manages a data hold time, and an internal power source which supplies a power source electric potential to the refresh circuit and the refresh control circuit in a state in which the data recording device is removed from an external device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.