Apparatus and method of creating a firewall data protection
US6363487B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Oct 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system is disclosed for a protected data storage medium. The protected data storage medium includes a storage medium that includes a protected area. In addition, the protected data storage includes a controller that is capable of controlling access to the storage medium. The controller is also capable of receiving a standard write command to change data of the storage medium, of receiving a special write command to change data of the storage medium. In operation, the controller changes data in the protected area in response to receiving a special write command. However, the controller allows data in the protected area to remain unchanged in response to receiving a standard write command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.