Patents Represented by Attorney Terrence Meador
  • Patent number: 4625202
    Abstract: An apparatus and a method for generating cursors in a multi-dimensional graphics display system uses line definition signals, each of which is representative of where along the horizontal display dimension one or more scan lines intersect a cursor to be presented. The apparatus includes a line definition memory for providing one or more line definition signals, and a line definition pointer circuit which responds to a scan line location by the vertical dimension, for selecting the line definition signal representative of the scan line. A generation circuit provides a cursor video signal at each horizontal location, as indicated by the selected line definition signal, where the represented scan line intersects the cursor to be presented.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: November 25, 1986
    Assignee: Tektronix, Inc.
    Inventors: Scott C. Richmond, James R. Peterson