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Method of protecting data stored in the memory device of a computer system and equipment to carry out this method

  • US 6,516,999 B1
  • Filed: 07/27/2000
  • Issued: 02/11/2003
  • Est. Priority Date: 10/14/1998
  • Status: Expired due to Fees
First Claim
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1. A method of protecting data, stored in a memory device of a computer system connected to a SCSI (Small Computer System Interface) interface bus, against unauthorized access, characterized in that:

  • a control unit having an authorization block is integrated into the SCSI interface bus between the memory device and a SCSI adapter connected to the computer system, said control unit receiving a memory access request control signal from the computer system;

    providing an authorization level control signal from said authorization block to said control unit by means of identification of an authorized user;

    evaluation said authorization level control signal to screen communication between the computer system and the memory device at the SCSI interface depending upon an authorization level of the memory access request control signal, whereby access by the computer system to the memory device, is either permitted or refused.

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