Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
William Frederick Ashworth0
Date of Patent
August 31, 2010
0Patent Application Number
125573130
Date Filed
March 16, 2000
0Patent Primary Examiner
Patent abstract
The patterns can be used to reduce one or more undesirable effects such as moire or colour shift in coloured halftone images. Colour screens in the images are based on a combination of non-orthogonal mesh structures with parcels of printing dots which have common shape and size. Preferably the dots grow in mid tones by extending first towards their second, third or fourth nearest neighbours.
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