Patents Examined by Vincent P. Korshek
  • Patent number: 4672370
    Abstract: A technique is disclosed for use in an electronic raster-scan display system, for generating characters of variable size using a stroke-vector technique. An incoming data signal defines the type of character to be displayed, the horizontal X and vertical Y character field dimensions, the character drawing point, and any character rotation or reflection. Using that part of the data signal that defines the character type as a memory address, a character microprogram is retrieved containing a stroke-vector character mask and a stroke resolution factor representing the number x of horizontal stroke-vectors in a straight line and the number y of vertical stroke-vectors in a straight line that are used by said character mask to represent said character within a normalized character field.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: June 9, 1987
    Assignee: Microtel Limited
    Inventor: Oliver T. Yu