Memory device
US7797553B2 · kind B2 · utility
1Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2004 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Apr 8, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/86
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a memory device that can safely hold much data necessary for using an Application (AP) therein. In the present invention, a memory device includes a first tamper resistant memory 41 that cannot be accessed directly by an electronic device and a second non-tamper resistant memory that cannot be directly accessed by the electronic device. The second memory is used to save data stored in the first memory 41 to. In this memory device, since data necessary for using many APs can be safely held in the device, any terminal device satisfying authorizing conditions can use the data held therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.