Patents Assigned to Linotype-Hell
  • Method for optimizing frequency-modulated rasters upon utilization of threshold hills
    Patent number: 5425112
    Abstract: The method optimizes frequency-modulated rasters for recording black-and-white or chromatic raster images. An image to be recorded is optoelectronically scanned and is digitally stored in the form of the individual gray scale values that were allocated to the individual pixels. Threshold decisions are implemented using the gray scale values, a decision being made as to whether or not a pixel is set in the rastered recording of the image.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: June 13, 1995
    Assignee: Linotype-Hell
    Inventor: Ludo Kerz