Patents by Inventor Denis G. Hennessy

Denis G. Hennessy 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).

  • Method and apparatus for constructing, storing and displaying characters
    Patent number: 4907282
    Abstract: A method and apparatus for creating and storing characters for display on a video screen. The shape of the graphic character is displayed at various degrees of resolution. The graphic character is stored as a bitmap or as coefficients of spline curves. These can be scaled up or down to give different character sizes. The coefficients can be converted to form pixelmaps which are rectangular arrays of pixels. The pixelmaps may have gray scale values.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: March 6, 1990
    Assignee: nHance Development Corporation
    Inventors: Joseph P. Daly, Denis G. Hennessy, Philip Samways