System for access control to hidden storage area in a disk drive
US6742094B2 · kind B2 · utility
86Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Feb 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disclosed disk drive has a disk assigned with a plurality of hidden storage areas. The disk drive includes an authentication module which performs authentication processing for each hidden storage area in response to an access request from a host system. The authentication module exchanges information with the host system and performs authentication processing to determine access permission for each hidden storage area by using key information and unique information defined for each hidden storage area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.