| Patent Number |
Title Of Patent |
Date Issued |
| 4812913 |
Diaphragm arrangement for opto-electronic scanning of originals |
March 14, 1989 |
| Diaphragm arrangement for point-by-point electro-optical scanning of originals, whereby the scan point is composed of a central main field and of a surrounding field surrounding the main field. A diaphragm for scanning the main field and a second diaphragm for scanning the surroundin |
| 4564859 |
Method and an apparatus for producing color separations for single color printing |
January 14, 1986 |
| A method and apparatus for producing color separations for single color printing in electronic reproduction, for example in textile, decorative, or packaging printing. A colored master is optoelectronically scanned point-by-point and line-by-line to obtain color signals. Color recognitio |
| 4521812 |
Method of improving contrast accentuation |
June 4, 1985 |
| This invention relates to a method for improving contrast accentuation in the case of the re-recording of originals in the sphere of electronic image processing by means of graving devices and scanners. An image signal is obtained by scanning an original opto-electronically dot-by-dot an |
| 4414635 |
Method and circuit for recognition of colors |
November 8, 1983 |
| An apparatus and a method for the recognition of colors on a colored image illuminated with a light source of a known spectrum composition, wherein the intensities of three primary colors are measured opto-electronically as color components, which represent the spatial co-ordinates of th |
| 4403249 |
Apparatus for mixing image signals to obtain a printing master |
September 6, 1983 |
| In an apparatus and a process for obtaining image signals, and electronically mixing the image signals to generate mixed signals, the steps include modulating one of the image signals with the control signal, amplitude-inverting the control signal, modulating the other image signal w |
| 4293872 |
Production of printing blocks or forms |
October 6, 1981 |
| This invention relates to the production of a printing block or form of the kind in which at least one original is scanned optoelectronically to obtain image signals being mixed to generate a composite signal and is recorded as the printing block or form, one of the image signal which is |
| 4261011 |
Color separation production using color recognition circuit |
April 7, 1981 |
| The invention relates to a method for producing line and continuous tone color separations of pattern models of textile, decoration or packaging printing and the like, and further relates to a color scanner. A characteristic color recognition signal for controlling the recording is o |
| 4255761 |
Apparatus for mixing image signals to obtain a printing master |
March 10, 1981 |
| In an apparatus and a process for obtaining image signals, and electronically mixing the image signals to generate mixed signals, the steps include modulating one of the image signals with the control signal, amplitude-inverting the control signal, modulating the other image signal w |
