Patents Examined by Robert Bauer
  • Patent number: 4631579
    Abstract: In electronic reproduction technology, a method and an apparatus for the production of hue and color separations for single color printing. A color original is optoelectronically scanned to obtain measured color value signals. A recognition region for a selected separation hue is defined in a recognition circuit. A hue recognition signal, which is a measure for the hue deviations of the hues scanned in the color original from the selected separation hue, is generated from the measured color value signals. Corrected color signals are derived from the measured color value signals and at least one corrected color signal is selected for further processing. A recording signal is acquired in a mixer stage by mixing the selected color signal and the hue recognition signal. The recording signal controls a recording element for recording of the hue separation.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: December 23, 1986
    Assignee: Dr. Ing. Rudolf Hell GmbH
    Inventors: Ingo Hoffrichter, Eggert Jung