Patents Assigned to Intelligent Solution Services GmbH
  • Memory card
    Patent number: 5357573
    Abstract: Memory card as mass memory device for computer systems preventing unauthorized use of software stored on said memory card. In the memory card a non-changable and read-only protection code is stored indicative of the respective memory card and/or the computer system and/or the manufacturer of the software etc. A protection routine is added to the software program to be protected executing the protected software itself only if a comparison code within the protection routine matches with the non-changeable protection code.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: October 18, 1994
    Assignee: Intelligent Solution Services GmbH
    Inventor: Kenn D. Walters