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公开(公告)号：EP1252022A1
公开(公告)日：2002-10-30
申请号：EP01942598.2
申请日：2001-01-22
Applicant: Robotic Vision Systems Inc.
Inventor： LEI, Ming , ACKAOUY, Raymond
IPC: B41J2/00
CPC classification number: B41J29/393 , G06K5/00
Abstract: A method of verifying data matrix print quality (2) utilizing center offset (7) for dot pen or inkjet marks, and size offset for laser etched or printed marks. The method of the present invention builds on the AIM specification and provides additional measures (3) to determine the quality of the data matrix marks. Center offset and size offset measurements (11) are employed to determine the data matrix quality.
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