Quality control method for two-dimensional matrix codes on...

Details Quality control method for two-dimensional matrix codes on... Quality control method for two-dimensional matrix codes on...

2007-12-18

2007-12-18

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S013000, C700S051000, C700S114000, C700S160000, C700S186000, C700S193000, C382S108000, C382S152000, C702S081000

Reexamination Certificate

active

10546817

ABSTRACT:
A quality control method for two-dimensional matrix codes on metallic workpieces, the codes being in the form of stamped marking dots is disclosed. The stamping process for the marking dots is carried out by a marking tool (17) with the aid of predetermined digital positional data. The corresponding image data is then recorded for analysis by an image processing device (22), exclusively at the locations that have been predetermined by the positional data, or additional image data that has been previously generated is also used for the analysis, to establish whether a correct marking dot with the required quality characteristics is present.

REFERENCES:
patent: 4072928 (1978-02-01), Wilder
patent: 5956253 (1999-09-01), Gottschalk
patent: 6243618 (2001-06-01), Miyazaki et al.
patent: 19930272 (2001-01-01), None

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