Patents by Inventor Ronald Ruta

Ronald Ruta 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).

  • Integrated analog source driver for active matrix liquid crystal display
    Patent number: 6075524
    Abstract: A source driver for an active matrix liquid crystal display, comprising a sample-and-hold circuit for sampling successive lines of an input video signal, a source follower for applying successive lines of the input video signal sampled by the sample-and-hold circuit to successive source lines of the active matrix crystal display, the source follower being characterized by a predetermined threshold voltage; a reset circuit for resetting the successive source lines after respective ones of the successive lines of the input video signal; and an autozero circuit for cancelling the threshold voltage from the video signal so that variations in the threshold voltage do not affect the video signal applied to the successive source lines.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: June 13, 2000
    Assignee: 1294339 Ontario, Inc.
    Inventor: Ronald Ruta