Method of and apparatus for producing a unit patte

专利名称：Method of and apparatus for producing a

unit pattern on a printing cylinder forprinting an endless pattern

发明人：Sakamoto, Takashi, c/o Dainippon Screen

Mfg.Co.Ltd

申请号：EP93114684.9申请日：19930913公开号：EP0588283B1公开日：19970416

摘要：A method of producing a unit pattern on a printing cylinder for printing anendless pattern including the steps of: storing pixel signals expressing pixels of anoriginal picture in memory means; distinguishing the pixel signals into first pixel signalswhich approximate to respective their corresponding pixel signals distant therefrom by arepetition length in a primary scanning direction and second pixel signals which are muchdifferent from the same; producing a cutting line extending across the original picture ina secondary scanning direction, said cutting line passing through the pixels of the originalpicture expressed by the first pixel signals as much as possible; extracting pattern pixelsignals which exist between the cutting line and an imaginary line distant therefrom bythe repetition length from the pixel signals; smoothing the pattern pixel signals close tothe cutting line and the imaginary line; and recording the unit pattern on the printingcylinder on the basis of the smoothed pattern pixel signals.

申请人：DAINIPPON SCREEN MFG

地址：JP

国籍：JP

代理机构：Goddar, Heinz J., Dr.

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