公开(公告)号：US5249139A

公开(公告)日：1993-09-28

申请号：US697187

申请日：1991-05-08

申请人： Uda Blasius ,  Manfred Korinek ,  Jurgen Reithofer

发明人： Uda Blasius ,  Manfred Korinek ,  Jurgen Reithofer

IPC分类号： B41F33/14 ,  B41F33/00

CPC分类号： B41F33/0081

摘要： A method of detecting register errors on a printed product, includes forming register marks on the printed product, pressing the printed product through a printing machine, opto-electrically scanning the register marks twice in a web travel direction with a predetermined time interval between the scannings, generating respective signals in accordance with the scannings, subtracting the signals from one another to obtain a further signal, and determining the position of the register mark as a measure of a time-dependent position of an extreme value of the further signal; and apparatus for performing the method.

摘要翻译： 一种检测打印产品上的记录错误的方法，包括在打印产品上形成对准标记，通过打印机按压印刷产品，以扫描行程方向以扫描的预定时间间隔光栅扫描对准标记两次 根据扫描产生各个信号，从彼此中减去信号以获得另外的信号，并且将所述寄存器标记的位置确定为所述另外信号的极值的时间相关位置的度量; 以及用于执行该方法的装置。