Patents by Inventor Karl-Heinz Besson

Karl-Heinz Besson 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).

  • Method and apparatus for influencing the colour appearance of a colored area in a printing process
    Patent number: 4901254
    Abstract: The invention relates to a method and to apparatus for influencing the colour appearance of a coloured area made up of at least three chromatic separation colours in a printing process, on the basis of densitometric or colorimetric measurements, in which the inking is influenced as a matter of priority in at most two chromatic separation colours as a function of the coloured proportion of a sum vector which is determined starting from density value differences or colorimetric difference values in a colour space and broken down into a grey proportion which only affects brightness and a coloured proporation relating to at most two chromatic separation colours. In this way an improved and in particular faster influence on a colour appearance of the coloured area is achieved in a printing process.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: February 13, 1990
    Assignee: Fogra Deutsche Forschungsgellschaft fur Druckund
    Inventors: Friedrich Dolezalek, Karl-Heinz Besson