FIELD: electronic equipment for protection of objects against unauthorized access. SUBSTANCE: electron code lock includes contact element, three counters, standard code unit, comparison circuit, two flip-flops, decoder, NOT-OR gate, indicator, pulse generator, register, code switch, adder and OR-ELSE gate. EFFECT: decreased probability of unauthorized disclosure of standard code. 1 dwg
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Authors
Dates
2003-10-27—Published
2001-11-01—Filed