System and method for protecting integrity of computer data and software
Patent 5121345 Issued on June 9, 1992. Estimated Expiration Date: 
October 10, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 10, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSystem and method of protecting integrity of computer data and software Patent #: 4975950 InventorApplicationNo. 597677 filed on 10/10/1990US Classes:713/188, COMPUTER VIRUS DETECTION BY CRYPTOGRAPHY713/2Loading initialization program (e.g., booting, rebooting, warm booting, remote booting, BIOS, initial program load (IPL), bootstrapping)ExaminersPrimary: Cangialosi, SalvatoreAttorney, Agent or FirmInternational ClassH04L 009/00AbstractSystem and method for preventing alteration of stored data by computer virus. In a computer system which normally automatically boots an operating system when the central processing unit is initialized, a device is provided which takes control of the central processing unit before boot-up, checks the system files for computer virus and generates an alarm signal if a virus is detected.In the preferred embodiment, the device quarantines an infected operating system to prevent alteration. | |
