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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G06K 7/08

by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Methods or arrangements for sensing record carriers > by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes

CPC:

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 detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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