Personal computer hard disk protection system
US5586301A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1994 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Nov 9, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The personal computer hard disk protection system is designed to protect data stored on computer hard disks while permitting multiple user operation. The personal computer hard disk protection system prevents unauthorized access to the hard-disk controller by software applications, and permits safe servicing of requests which use the BIOS. The basis for the personal computer hard disk protection system functions is the dynamic transformation of the file system to the configuration of the current user. The system is based on a hardware device called the protection-program support module and a set of protection programs, most of which is stored in the protection-program support module. The protection program support module is an external board and is connected to the computer system bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.