Self-contained rights management for non-volatile memory
US7590600B2 · kind B2 · utility
7Cited by
8References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 28, 2006 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Sep 1, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q10/10
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
Access rights may be managed using non-volatile memory. The charge retention characteristics in devices with non-volatile memory are used to establish time-limited rights. Time duration is calculated using the floating gate in a storage cell. First, time-limited rights are determined from a license. Second, a set of computer software selects a time-sensitive storage cell, containing the floating gate, in the non-volatile memory that approximates the required time duration in the license.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.