Patents by Inventor Edward Knapton

Edward Knapton 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).

  • Video terminal for use in graphics and alphanumeric applications
    Patent number: 4803476
    Abstract: A bit-mapped graphics terminal capable of displaying graphs as well as text permits character and screen attributes to be controlled with minimal memory requirements, and is capable of operating as an interlaced display and as a non-interlaced display. A first memory stores a display bit map that defines characteristics of individual picture elements of the display. A second memory stores attribute information for individual groups of the picture elements of the display.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: February 7, 1989
    Assignee: Visual Technology Incorporated
    Inventors: Edward Knapton, Ernest Vincent