Patents by Inventor Irwin H. Usher

Irwin H. Usher 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).

  • Patent number: 4672533
    Abstract: An electronic computer linkage interface control security system that allows a remote computer terminal to control the across to a main computer. The system includes a Computer Linkage Interface Control (CLIC) module that is coupled to the terminal and that generates and stores a random or pseudo-random coupling code that is unique to the terminal and unique for each communication session. The computer, in which the coupling code for the current communications session was stored during the previous session, accesses the current coupling code store in the CLIC module for comparison with the computer's previously stored code. If a match occurs, access by the terminal to the main computer is permitted.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: June 9, 1987
    Inventors: Richard G. Noble, Garland L. Cole, Irwin H. Usher