Patents by Inventor Ronald E. Carmean

Ronald E. Carmean 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).

  • Gated video mixer
    Patent number: 4855832
    Abstract: A video mixer circuit is used to combine two video signals, one of higher image quality than the other. The poorer of the two video signals is gated to clamp off its poorer signal during selected intervals of the video signal. The intervals of clamping off are determined by a discriminator sensitive to the voltage level of one of the video signals.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: August 8, 1989
    Assignee: Nicolet Instrument Corporation
    Inventor: Ronald E. Carmean
  • X-ray sensitive camera pick-up tube
    Patent number: 4835379
    Abstract: An X-ray sensitive camera pick-up tube has an input end that has a circular glass surface that has areas of phosphor coating and of bare surface. The area of phosphor coating is a rectangle that fits within the circular glass surface and is limited to the area used for X-ray imaging of a specimen placed in front of the input end.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: May 30, 1989
    Assignee: Nicolet Instrument Corporation
    Inventor: Ronald E. Carmean