System for preventing unauthorized use of recording media
US7448087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2003 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Nov 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A recording medium is provided which is protected against unauthorized use and has heightened security. The recording medium stores storage authentication information that authenticates a user, and has an area that corresponds to the storage authentication information. The recording medium further includes a tamper-resistant authentication unit that judges whether or not received authentication information that authenticates a user matches the storage authentication information. The authentication unit is prevented from being decoded or tampered by third parties. In addition, it is possible to restrict access to the area according to the content of authentication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.