Patents by Inventor Xavier Fleury

Xavier Fleury 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).

  • Device for correcting contours in an image and use of such a device in a color television camera
    Patent number: 4748500
    Abstract: A device is provided for correcting the contours in an image comprising in the green channel a contour extraction circuit followed by a circuit for processing these contours. It also comprises in the red channel a second contour extraction circuit followed by a second circuit for processing the contours. A validation circuit only validates the contour signal coming from the red channel when the red level is relatively high with respect to the green level. In this case, the red contour signal is superimposed on the contour from the green channel for correcting the contours of the three chrominance channels, by means of a mixing circuit.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: May 31, 1988
    Assignee: Thomson Video Equipment
    Inventors: Jean P. Lacoste, Christian Mourier, Xavier Fleury