Patent ID: 7310566
Filing Date: 2007-12-18
Classification: B44B,G01B

Abstract:
1. A method for quality control of two-dimensional matrix codes on a metallic workpiece with an image processing device, wherein said metallic workpiece is to be embossed with two-dimensional matrix codes in the form of embossed marking dots, the method comprising: positioning the image processing device at a location above a surface portion of the metallic workpiece, said surface portion to be embossed at sites based on preset digital position data, each site being defined by coordinates as a position for a single one of said embossed marking dots; shifting the image processing device from said location and positioning a marking tool in said location; subsequently embossing the metallic workpiece to form the marking dots, based on the preset digital position data, using the marking tool; subsequently, by means of the image processing device, capturing image data, only for the sites; after capturing the image data, shifting the image processing device back to said location; and evaluating, based on the captured image data, whether or not at each site there is a marking dot with desired quality characteristics.