Patents by Inventor Keith E. Sorenson

Keith E. Sorenson 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).

  • Methods and apparatus for CYMK-RGB RAMDAC
    Patent number: 5289565
    Abstract: A thirty-two bit frame buffer provides real time conversion of CYMK color data to RGB color data for display on a video monitor. The frame buffer operates at a video rate of 100 mHz and includes pipelined arithmetic using look up tables for some of the CYMK to RGB conversion steps. Also provided are look up tables providing gamma correction and pixel-by-pixel selection of CYMK to RGB conversion, to allow display of an RGB window in a CYMK information display.
    Type: Grant
    Filed: May 1, 1992
    Date of Patent: February 22, 1994
    Assignee: RasterOps Corporation
    Inventors: David M. Smith, Keith E. Sorenson