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    PROCÉDÉ DE GÉNÉRATION DE MOTIFS REPRÉSENTANT UNE IMAGE EN DEMI-TEINTES
    293.
    发明授权
    PROCÉDÉ DE GÉNÉRATION DE MOTIFS REPRÉSENTANT UNE IMAGE EN DEMI-TEINTES 有权
    VERFAHREN ZUR ERZEUGUNG VON EIN RASTERBILD DARSTELLENDEN MUSTERN

    公开(公告)号：EP2010389B1

    公开(公告)日：2011-06-08

    申请号：EP07735442.1

    申请日：2007-04-10

    Applicant: KBA-NotaSys SA

    Inventor： MANFREDI, Renato ,  FORESTI, Jean-François

    IPC: B41C1/05

    CPC classification number: H04N1/405 ,  B41C1/05 ,  B41M1/10 ,  B41M3/14 ,  B42D25/21 ,  B42D2035/26

    Abstract: A method is described for generating patterns representing a halftone image, said method comprising the generation of a first set of patterns (10) consisting of lines and curves dimensionally modulated so as to produce variations in tones reproducing the halftones of the image using an intaglio rendering technique. The method comprises the generation of a second set of patterns (20; 30) consisting of microstructures separate from the lines and curves of the first set of patterns, said microstructures being dimensionally modulated so as to produce variations in tones reproducing the halftones of the image. According to a first aspect of the invention, the microstructures consist of stochastic microstructures that can be likened to a grain. According to a second aspect of the invention, the microstructures consist of repetitive microstructures reproducing information that can be recognised by an observer, which repetitive microstructures comprise microletters and/or microsymbols. The second set of patterns is interlaced with the first set of patterns in such a way that the microstructures of the second set of patterns occupy the spaces between the lines and curves of the first set of patterns and so that the halftones reproduced by the second set of patterns supplement the halftones reproduced by the first set of patterns.

    Abstract translation: 该方法涉及生成一组模式（10），其中线和曲线被调整以产生修正图像的半色调的色调变化。 产生具有与线和曲线不同的微结构的另一组图案（20），其中微观尺寸被调整以产生修正图像的半色调的色调变化。 这些图案是交错的，使得微结构占据线和曲线之间的空间，并且由图案（20）恢复的半色调完成由图案（10）恢复的半色调。 独立权利要求还包括以下内容：（1）半色调印版（2）的制造方法，其包括表示半色调图像的图案的雕刻板。

    METHOD FOR CONTINUOUSLY CHECKING THE PRODUCTION OF SECURITY PRINTING MACHINES AND DEVICE FOR PERFORMING THE METHOD
    295.
    发明授权
    METHOD FOR CONTINUOUSLY CHECKING THE PRODUCTION OF SECURITY PRINTING MACHINES AND DEVICE FOR PERFORMING THE METHOD 有权
    方法连续监测安全印刷机械及为执行过程中的制造装置

    公开(公告)号：EP1272348B8

    公开(公告)日：2011-04-20

    申请号：EP01916846.7

    申请日：2001-04-11

    Applicant: KBA-NotaSys SA

    Inventor： BROWN, Stephen ,  FIVAZ, Eric

    IPC: B41F31/00 ,  B41F33/14

    CPC classification number: B41F33/14 ,  B41F31/00 ,  Y10S101/34

    Abstract: The ink-agitator (1) is supported and guided by fixed means between pedestals (2) and (3) above an ink fountain containing security ink. It is driven in alternate movement on its guiding means and its tip is dipping into the ink. Bore (11) receives a detector head in the form of a transformer with primary winding arranged for normally producing a 'zero' magnetic field, adjustable ferrite core place in such a manner that the 'zero' magnetic field is obtained for a standard magnetic property of the security ink, and secondary winding going out of balance and issuing a signal if the magnetic property of the ink into which the tip of the ink-agitator is displaced undergoes modifications. The output signal is transmitted to feed line (4) with slide contact (6) whereas the ground pole is connected through wire (5) and sliding contact (7).

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