Patents by Inventor Thomas A. DeFanti

Thomas A. DeFanti 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).

  • Patent number: 4580134
    Abstract: A method of generating a color video display comprises the steps of dividing a color image to be displayed into a matrix of blocks, each block comprising a matrix of pixels; storing data identifying a multiplicity m of different colors, the data being stored in a color map memory having a unique address for the data identifying each different color; selecting different pairs of the m colors for different blocks of the color image to be displayed; generating a pixel data bit for each pixel in each of the different blocks, the value of each pixel data bit identifying one of the pair of colors selected for the block in which the corresponding pixel is located; generating different pairs of binary numbers representing the color map memory addresses of the different pairs of the m colors selected for different blocks; reading out of the color map memory the stored data representing the particular color selected for each pixel, in response to the data bit for that pixel and the corresponding one of said binary numb
    Type: Grant
    Filed: November 16, 1982
    Date of Patent: April 1, 1986
    Assignee: Real Time Design, Inc.
    Inventors: Graham M. Campbell, Thomas A. DeFanti