FIELD: built-in integrated circuit cards such as identity, credit, cash cards, and the like. SUBSTANCE: device has set of memory locations, bit line control circuit, word line control circuit, enable bit line control circuit, comparison circuit, and microprocessor. EFFECT: impossibility of unauthorized access to data entered in memory locations of device. 10 cl, 8 dwg
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Authors
Dates
2001-06-27—Published
1997-03-24—Filed