Patents by Inventor Marc M. L. Duponcheel

Marc M. L. Duponcheel 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).

  • Information transmission system
    Patent number: 4852084
    Abstract: Information signals (Y1, C1; Y2, C2: Y3, C3) relating to the same video image but each defining the image with a different accuracy are transmitted asynchronously and on a time division basis as packet sets (Y1, C1; Y21, C21; Y32, C32). In a receiving station (SS2) the information signals are derived from the received packet sets and by means of selection circuit (SEC1/3) two or more of these signals are supplied to a combination device (VTE) and are combined therein to form an image.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: July 25, 1989
    Assignee: Alcatel N.V.
    Inventors: Willem J. A. Verbiest, Marc M. L. Duponcheel