Special arrangements for circuits, e.g. for protecting identification code in memory

Full Title

Record carriers for use with machines and with at least a part designed to carry digital markings > characterised by the kind of the digital marking, e.g. shape, nature, code > Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards > with integrated circuit chips > Special arrangements for circuits, e.g. for protecting identification code in memory

Classification Context

Section:

PHYSICS

Class:

COMPUTING OR CALCULATING; COUNTING

Subclass:

GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS