Patents by Inventor Leszek Kotsch

Leszek Kotsch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Computer system with controlled data access
    Patent number: 8359442
    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.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: January 22, 2013
    Assignee: Metadat It-Beratungs- und Entwicklungs- GmbH
    Inventors: Leszek Kotsch, Harald Hoffmann
  • COMPUTER SYSTEM FOR ACCESSING STORED DATA
    Publication number: 20100293351
    Abstract: A computer system comprising: 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 direct data access control DDAC providing protected regions and unprotected regions on the storage device HDD. According to the invention the input/output control hub IOCH comprises in addition to the direct data access control DDAC an interface for the semantic control of data access SCDA, the SCDA storing custom configuration data which can be loaded into SCDA only by a dedicated service which controls protected code running on CPU. Via 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.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Inventors: Leszek KOTSCH, Harald HOFFMANN