CPC Subgroup
G06K 7/06 by means which conduct current when a mark is sensed or absent, e.g. contact brush for a conductive mark
Full Title
Methods or arrangements for sensing record carriers, (methods or arrangements for marking the record carrier in digital fashion G06K1/00; pattern recognition G06F18/00; arrangements for image or video recognition or understanding G06V10/00; character recognition, recognising digital ink or document-oriented image-based pattern recognition G06V30/00) > by means which conduct current when a mark is sensed or absent, e.g. contact brush for a conductive mark
1 direct subcode
Child Classifications
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