Patents by Inventor Edward R. Vassar

Edward R. Vassar 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).

  • Floating point addition architecture
    Patent number: 4488252
    Abstract: Parallel shifter architecture in an arithmetic unit of a digital computer for processing floating point mantissas. An arithmetic-logic unit (ALU) in series with shifting means functions in parallel with a barrel shifter. Both paths are executed simultaneously and the output of one path is selected for storage at the end of a microcycle based on machine status and the actual floating point numbers manipulated. This architecture provides a significant reduction in floating point addition execution time.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: December 11, 1984
    Assignee: Raytheon Company
    Inventor: Edward R. Vassar