Patent · US Active

Computer system with controlled data access

US8359442B2 · kind B2 · utility

0Cited by

4References

11Claims

0Family size

Assignee

Metadat It-Beratungs- und Entwicklungs- GmbH · AT

Inventors

Leszek Kotsch · Wien, AT
Harald Hoffmann · Much, DE

Key dates

Filing date	May 13, 2010
Grant date	Jan 22, 2013
Priority date	—
Expiry date	Sep 13, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/85
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A computer system comprises: a central processing unit (CPU); an input/output control hub (IOCH) connected to the CPU; a storage device; the input/output control hub (IOCH) comprising a direct data access control (DDAC) being connected to the storage device; the DDAC providing protected regions and unprotected regions on the storage device (HDD). The IOCH comprises in addition to the DDAC an interface for semantic control of data access (SCDA), the SCDA storing custom configuration data which can be loaded only by a dedicated service which controls protected code running on the CPU. Via the SCDA, files in protected regions can be accessed on a record or even field level, whereby each record or field can have different access rights.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.