Patents by Inventor Robert D. Brinkman

Robert D. Brinkman 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).

  • Color bar and audio signal generator
    Patent number: 4879590
    Abstract: Modulators for producing a composite video signal comprising composite video color bars of one volt, peak to peak, of the United States NTSC standard type, are described. The modulators include an EPROM matrix coupled to receive the outputs from a video graphics circuit and programed to produce the color bars from such outputs. The modulator also has a decoder interposed between a loop returning the output from the EPROM matrix to the video graphics circuit and thence to an output driver producing an output of color bars at one volt peak to peak into a 75 ohm load.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: November 7, 1989
    Assignees: Walter K. Guillot, L. J. Thibodeaux
    Inventors: Walter K. Guillot, Robert D. Brinkman